基于SSH框架的学生考试系统（注意看文档目录）

我就是我 2021-11-23 01:54 229阅读 0赞

基于SSH框架的学生考试系统

***（1）.先看一下我的目录结构***  
![在这里插入图片描][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70]  
（2）.还有jsp文件目录  
![在这里插入图片描][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70 1]  
![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70 2][]  
![在这里插入图片描述][20190725152056594.png]  
（3）.代码：（对应文件目录）  
1.1  
package com.ischoolbar.programmer.action;

import java.sql.Date;  
import java.util.HashMap;  
import java.util.Iterator;  
import java.util.List;  
import java.util.Map;  
import java.util.Map.Entry;

import javax.servlet.http.HttpServletRequest;  
import javax.servlet.http.HttpSession;

import org.apache.struts2.interceptor.ServletRequestAware;

import com.ischoolbar.programmer.dao.ExamDao;  
import com.ischoolbar.programmer.dao.QuestionDao;  
import com.ischoolbar.programmer.model.Exam;  
import com.ischoolbar.programmer.model.PageBean;  
import com.ischoolbar.programmer.model.Question;  
import com.ischoolbar.programmer.model.Student;  
import com.ischoolbar.programmer.util.PageUtil;  
import com.ischoolbar.programmer.util.PropertiesUtil;  
import com.ischoolbar.programmer.util.StringUtil;  
import com.opensymphony.xwork2.ActionSupport;

/\*\*

*  考试Action类
 *  @author lizun
 *

\*/  
public class ExamAction extends ActionSupport implements ServletRequestAware\{

/**
     * 
     */
    private static final long serialVersionUID = 1L;
    
    private ExamDao examDao=new ExamDao();
    private QuestionDao questionDao=new QuestionDao();
    
    private HttpServletRequest request;
    
    private String mainPage;
    
    private Exam exam;
    private Exam s_exam;
    
    private List<Exam> examList;
    
    private String page;
    private int total;
    private String pageCode;
    
    public String getMainPage() {
    	return mainPage;
    }
    
    public void setMainPage(String mainPage) {
    	this.mainPage = mainPage;
    }
    
    public Exam getExam() {
    	return exam;
    }
    
    public void setExam(Exam exam) {
    	this.exam = exam;
    }
    
    
    
    public List<Exam> getExamList() {
    	return examList;
    }
    
    public void setExamList(List<Exam> examList) {
    	this.examList = examList;
    }
    
    
    
    
    public Exam getS_exam() {
    	return s_exam;
    }
    
    public void setS_exam(Exam s_exam) {
    	this.s_exam = s_exam;
    }
    
    
    
    public String getPage() {
    	return page;
    }
    
    public void setPage(String page) {
    	this.page = page;
    }
    
    public int getTotal() {
    	return total;
    }
    
    public void setTotal(int total) {
    	this.total = total;
    }
    
    public String getPageCode() {
    	return pageCode;
    }
    
    public void setPageCode(String pageCode) {
    	this.pageCode = pageCode;
    }
    
    /**
     * 计算/添加考试成绩
     * @return
     * @throws Exception
     */
    public String add()throws Exception{
    	Map<String, String[]> keyMap = new HashMap<String, String[]>();
        keyMap = request.getParameterMap();
        Iterator<Entry<String,String[]>> it2 = keyMap.entrySet().iterator();
        int totalScore=0;
        int singleScore=0;
        int moreScore=0;
        while (it2.hasNext()) {
            Entry<String, String[]> entry = it2.next();  
            String keyStr=entry.getKey();
            String values[]=entry.getValue();
            String key;
            String value="";
            if(keyStr.equals("exam.student.id")||keyStr.equals("exam.paper.id")){
            	continue;
            }
            if(keyStr.split("-")[1].equals("r")){  // 单选
            	key=keyStr.split("-")[2];
            	value=values[0];
            	singleScore+=this.calScore(key, value, "1");
            }else{  // 多选
            	key=keyStr.split("-")[2];
            	for(String s:values){
            		value+=s+",";
            	}
            	value=value.substring(0,value.length()-1);
            	moreScore+=this.calScore(key, value, "2");
            }
        }
        totalScore=singleScore+moreScore;
        exam.setSingleScore(singleScore);
        exam.setMoreScore(moreScore);
        exam.setScore(totalScore);
        exam.setExamDate(new Date(System.currentTimeMillis()));
        examDao.saveExam(exam);
    	mainPage="exam/examResult.jsp";
    	return SUCCESS;
    }
    
    /**
     * 计算每道题目的得分
     * @param questionId
     * @param userAnswer
     * @return
     */
    private int calScore(String questionId,String userAnswer,String type)throws Exception{
    	Question question=questionDao.getQuestion(questionId);
    	if(userAnswer.equals(question.getAnswer())){
    		if("1".equals(type)){
    			return 20;
    		}else{
    			return 30;
    		}
    	}else{
    		return 0;
    	}
    }
    
    /**
     * 获取考试成绩
     * @return
     * @throws Exception
     */
    public String getExams()throws Exception{
    	examList=examDao.getExams(s_exam,null);
    	mainPage="exam/myExam.jsp";
    	return SUCCESS;
    }
    
    /**
     * 获取所有考试成绩
     * @return
     * @throws Exception
     */
    public String examList()throws Exception{
    	HttpSession session=request.getSession();
    	if(StringUtil.isEmpty(page)){
    		page="1";
    	}
    	if(s_exam!=null){
    		session.setAttribute("s_exam", s_exam);
    	}else{
    		Object o=session.getAttribute("s_exam");
    		if(o!=null){
    			s_exam=(Exam)o;
    		}else{
    			s_exam=new Exam();
    		}
    	}
    	PageBean pageBean=new PageBean(Integer.parseInt(page),Integer.parseInt(PropertiesUtil.getValue("pageSize")));
    	examList=examDao.getExams(s_exam,pageBean);
    	total=examDao.examCount(s_exam);
    	pageCode=PageUtil.genPagation(request.getContextPath()+"/exam!examList",total, Integer.parseInt(page), Integer.parseInt(PropertiesUtil.getValue("pageSize")));
    	mainPage="exam/examList.jsp";
    	return SUCCESS;
    }
    
    public void setServletRequest(HttpServletRequest request) {
    	this.request=request;
    }

1.2

package com.ischoolbar.programmer.action;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpSession;
    
    import org.apache.struts2.interceptor.ServletRequestAware;
    
    import com.ischoolbar.programmer.dao.ManagerDao;
    import com.ischoolbar.programmer.model.Manager;
    import com.ischoolbar.programmer.model.Student;
    import com.opensymphony.xwork2.ActionSupport;
    
    public class ManagerAction extends ActionSupport implements ServletRequestAware{
    
    	/**
    	 * 
    	 */
    	private static final long serialVersionUID = 1L;
    	private HttpServletRequest request;
    	
    	private ManagerDao managerDao=new ManagerDao();
    	
    	private Manager manager;
    	private String error;
    	
    	public Manager getManager() {
    		return manager;
    	}
    
    	public void setManager(Manager manager) {
    		this.manager = manager;
    	}
    	
    
    	public String getError() {
    		return error;
    	}
    
    	public void setError(String error) {
    		this.error = error;
    	}
    
    	/**
    	 * 登录验证
    	 * @return
    	 * @throws Exception
    	 */
    	public String login()throws Exception{
    		HttpSession session=request.getSession();
    		Manager currentUser=managerDao.login(manager);
    		if(currentUser==null){
    			error="用户名或者密码错误!";
    			return ERROR;
    		}else{
    			session.setAttribute("currentUser", currentUser);
    			return SUCCESS;
    		}
    	}
    	
    	/**
    	 * 注销用户
    	 * @throws Exception
    	 */
    	public String logout()throws Exception{
    		request.getSession().invalidate();
    		return "logout";
    	}
    	
    	public void setServletRequest(HttpServletRequest request) {
    		this.request=request;
    	}
    
    }

1.3

package com.ischoolbar.programmer.action;
    
    import java.util.ArrayList;
    import java.sql.Date;
    import java.util.Iterator;
    import java.util.List;
    import java.util.Random;
    import java.util.Set;
    
    import net.sf.json.JSONObject;
    
    import org.apache.struts2.ServletActionContext;
    
    import com.ischoolbar.programmer.dao.PaperDao;
    import com.ischoolbar.programmer.dao.QuestionDao;
    import com.ischoolbar.programmer.model.Paper;
    import com.ischoolbar.programmer.model.Question;
    import com.ischoolbar.programmer.util.ResponseUtil;
    import com.ischoolbar.programmer.util.StringUtil;
    import com.opensymphony.xwork2.ActionSupport;
    
    /**
     * 试卷Action类
     * @author lizun
     *
     */
    public class PaperAction extends ActionSupport{
    
    	/**
    	 * 
    	 */
    	private static final long serialVersionUID = 1L;
    	
    	private PaperDao paperDao=new PaperDao();
    	private QuestionDao questionDao=new QuestionDao();
    	
    	private String mainPage;
    	private String paperId;
    	
    	private List<Paper> paperList=new ArrayList<Paper>();
    	private List<Question> squestionList=new ArrayList<Question>();
    	private List<Question> mquestionList=new ArrayList<Question>();
    	
    	private String title; // 标题
    	
    
    	private Paper paper;
    	
    	public List<Paper> getPaperList() {
    		return paperList;
    	}
    
    	public void setPaperList(List<Paper> paperList) {
    		this.paperList = paperList;
    	}
    	
    	
    
    	public List<Question> getSquestionList() {
    		return squestionList;
    	}
    
    	public void setSquestionList(List<Question> squestionList) {
    		this.squestionList = squestionList;
    	}
    
    	public List<Question> getMquestionList() {
    		return mquestionList;
    	}
    
    	public void setMquestionList(List<Question> mquestionList) {
    		this.mquestionList = mquestionList;
    	}
    
    	public void setPaper(Paper paper) {
    		this.paper = paper;
    	}
    	
    
    	public Paper getPaper() {
    		return paper;
    	}
    
    	
    
    	public String getPaperId() {
    		return paperId;
    	}
    
    	public void setPaperId(String paperId) {
    		this.paperId = paperId;
    	}
    
    	public String getMainPage() {
    		return mainPage;
    	}
    
    	public void setMainPage(String mainPage) {
    		this.mainPage = mainPage;
    	}
    
    	
    	
    	public String getTitle() {
    		return title;
    	}
    
    	public void setTitle(String title) {
    		this.title = title;
    	}
    
    	/**
    	 * 获取所有试卷
    	 * @return
    	 * @throws Exception
    	 */
    	public String list()throws Exception{
    		paperList=paperDao.getPapers();
    		mainPage="exam/selectPaper.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 获取所有试卷（管理）
    	 * @return
    	 * @throws Exception
    	 */
    	public String paperList()throws Exception{
    		paperList=paperDao.getPapers();
    		mainPage="paper/paperList.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 通过id获取试卷实体
    	 * @return
    	 * @throws Exception
    	 */
    	public String getPaperById()throws Exception{
    		paper=paperDao.getPaper(paperId);
    		mainPage="paper/paperSave.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 保存预操作
    	 * @return
    	 * @throws Exception
    	 */
    	public String preSave()throws Exception{
    		if(StringUtil.isNotEmpty(paperId)){
    			paper=paperDao.getPaper(paperId);
    			title="修改试卷";
    		}else{
    			title="添加试卷";
    		}
    		mainPage="paper/paperSave.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 保存试卷
    	 * @return
    	 * @throws Exception
    	 */
    	public String savePaper()throws Exception{
    		if(StringUtil.isNotEmpty(paperId)){
    			paper.setId(Integer.parseInt(paperId));
    		}else{
    			paper.setJoinDate(new Date(System.currentTimeMillis()));			
    		}
    		paperDao.savePaper(paper);
    		return "save";
    	}
    	
    	/**
    	 * 删除试卷
    	 * @return
    	 * @throws Exception
    	 */
    	public String deletePaper()throws Exception{
    		paper=paperDao.getPaper(paperId);
    		JSONObject resultJson=new JSONObject();
    		if(questionDao.existQuestionByPaperId(paperId)){
    			resultJson.put("error","试卷下面有题目，不能删除");
    		}else{
    			paperDao.paperDelete(paper);
    			resultJson.put("success",true);
    		}
    		ResponseUtil.write(resultJson,ServletActionContext.getResponse());
    		return null;
    	}
    	
    	/**
    	 * 获取指定试卷
    	 * @return
    	 * @throws Exception
    	 */
    	public String getDetailPaper()throws Exception{
    		paper=paperDao.getPaper(paperId);
    		Set<Question> questionList=paper.getQuestions();
    		Iterator<Question> it=questionList.iterator();
    		while(it.hasNext()){
    			Question q=it.next();
    			if("1".equals(q.getType())){
    				squestionList.add(q);
    			}else{
    				mquestionList.add(q);
    			}
    		}
    		//squestionList=this.getRandomQuestion(squestionList, 3);
    		//mquestionList=this.getRandomQuestion(mquestionList, 2);
    		mainPage="exam/paper.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 获取随机试题
    	 * @param questionList
    	 * @param num
    	 * @return
    	 */
    	private List<Question> getRandomQuestion(List<Question> questionList,int num){
    		List<Question> resultList=new ArrayList<Question>();
    		Random random=new Random();
    		if(num>0){
    			for(int i=1;i<=num;i++){
    				int n=random.nextInt(questionList.size());
    				Question q=questionList.get(n);
    				if(resultList.contains(q)){
    					i--;
    				}else{
    					resultList.add(questionList.get(n));					
    				}
    			}
    		}
    		return resultList;
    	}
    
    }

1.4：

package com.ischoolbar.programmer.action;
    
    
    import java.util.List;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpSession;
    
    import net.sf.json.JSONObject;
    
    import org.apache.struts2.ServletActionContext;
    import org.apache.struts2.interceptor.ServletRequestAware;
    
    import com.ischoolbar.programmer.dao.PaperDao;
    import com.ischoolbar.programmer.dao.QuestionDao;
    import com.ischoolbar.programmer.model.PageBean;
    import com.ischoolbar.programmer.model.Paper;
    import com.ischoolbar.programmer.model.Question;
    import com.ischoolbar.programmer.util.PageUtil;
    import com.ischoolbar.programmer.util.PropertiesUtil;
    import com.ischoolbar.programmer.util.ResponseUtil;
    import com.ischoolbar.programmer.util.StringUtil;
    import com.opensymphony.xwork2.ActionSupport;
    
    public class QuestionAction extends ActionSupport implements ServletRequestAware{
    
    	/**
    	 * 
    	 */
    	private static final long serialVersionUID = 1L;
    
    	private HttpServletRequest request;
    	
    	private QuestionDao questionDao=new QuestionDao();
    	private PaperDao paperDao=new PaperDao();
    	
    	private List<Question> questionList;
    	private List<Paper> paperList;
    	private String mainPage;
    	
    	private String questionId;
    	private Question question;
    	private String title;
    	
    	private String page;
    	private int total;
    	private String pageCode;
    	
    	private Question s_question;
    	
    	
    
    	public List<Paper> getPaperList() {
    		return paperList;
    	}
    
    	public void setPaperList(List<Paper> paperList) {
    		this.paperList = paperList;
    	}
    
    	public String getTitle() {
    		return title;
    	}
    
    	public void setTitle(String title) {
    		this.title = title;
    	}
    
    	public List<Question> getQuestionList() {
    		return questionList;
    	}
    
    	public void setQuestionList(List<Question> questionList) {
    		this.questionList = questionList;
    	}
    
    	public String getMainPage() {
    		return mainPage;
    	}
    
    	public void setMainPage(String mainPage) {
    		this.mainPage = mainPage;
    	}
    
    	public String getPage() {
    		return page;
    	}
    
    	public void setPage(String page) {
    		this.page = page;
    	}
    
    	public int getTotal() {
    		return total;
    	}
    
    	public void setTotal(int total) {
    		this.total = total;
    	}
    
    	public String getPageCode() {
    		return pageCode;
    	}
    
    	public void setPageCode(String pageCode) {
    		this.pageCode = pageCode;
    	}
    	
    	
    
    	public Question getS_question() {
    		return s_question;
    	}
    
    	public void setS_question(Question s_question) {
    		this.s_question = s_question;
    	}
    	
    	
    
    	public String getQuestionId() {
    		return questionId;
    	}
    
    	public void setQuestionId(String questionId) {
    		this.questionId = questionId;
    	}
    
    	public Question getQuestion() {
    		return question;
    	}
    
    	public void setQuestion(Question question) {
    		this.question = question;
    	}
    
    	/**
    	 * 查询试题信息
    	 * @return
    	 * @throws Exception
    	 */
    	public String list()throws Exception{
    		HttpSession session=request.getSession();
    		if(StringUtil.isEmpty(page)){
    			page="1";
    		}
    		if(s_question!=null){
    			session.setAttribute("s_question", s_question);
    		}else{
    			Object o=session.getAttribute("s_question");
    			if(o!=null){
    				s_question=(Question)o;
    			}else{
    				s_question=new Question();
    			}
    		}
    		PageBean pageBean=new PageBean(Integer.parseInt(page),Integer.parseInt(PropertiesUtil.getValue("pageSize")));
    		questionList=questionDao.getQuestions(s_question,pageBean);
    		total=questionDao.questionCount(s_question);
    		pageCode=PageUtil.genPagation(request.getContextPath()+"/question!list",total, Integer.parseInt(page), Integer.parseInt(PropertiesUtil.getValue("pageSize")));
    		mainPage="question/questionList.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 通过id获取试题
    	 * @return
    	 * @throws Exception
    	 */
    	public String getQuestionById()throws Exception{
    		question=questionDao.getQuestion(questionId);
    		mainPage="question/questionShow.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 预编辑操作
    	 * @return
    	 * @throws Exception
    	 */
    	public String preSave()throws Exception{
    		paperList=paperDao.getPapers();
    		if(StringUtil.isNotEmpty(questionId)){
    			question=questionDao.getQuestion(questionId);
    			title="修改试题信息";
    		}else{
    			title="添加试题信息";
    		}
    		mainPage="question/questionSave.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 删除试题
    	 * @return
    	 * @throws Exception
    	 */
    	public String delete()throws Exception{
    		question=questionDao.getQuestion(questionId);
    		questionDao.deleteQuestion(question);
    		JSONObject resultJson=new JSONObject();
    		resultJson.put("success",true);
    		ResponseUtil.write(resultJson,ServletActionContext.getResponse());
    		return null;
    	}
    	
    	/**
    	 * 保存试题
    	 * @return
    	 * @throws Exception
    	 */
    	public String saveQuestion()throws Exception{
    		if(StringUtil.isNotEmpty(questionId)){
    			question.setId(Integer.parseInt(questionId));
    		}
    		question.setAnswer(question.getAnswer().toUpperCase());
    		questionDao.saveQuestion(question);
    		return "save";
    	}
    
    	public void setServletRequest(HttpServletRequest request) {
    		this.request=request;
    	}
    
    }

1.5：

package com.ischoolbar.programmer.action;
    
    
    import java.util.List;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpSession;
    
    import net.sf.json.JSONObject;
    
    import org.apache.struts2.ServletActionContext;
    import org.apache.struts2.interceptor.ServletRequestAware;
    
    import com.ischoolbar.programmer.dao.StudentDao;
    import com.ischoolbar.programmer.model.PageBean;
    import com.ischoolbar.programmer.model.Student;
    import com.ischoolbar.programmer.util.DateUtil;
    import com.ischoolbar.programmer.util.PageUtil;
    import com.ischoolbar.programmer.util.PropertiesUtil;
    import com.ischoolbar.programmer.util.ResponseUtil;
    import com.ischoolbar.programmer.util.StringUtil;
    import com.opensymphony.xwork2.ActionSupport;
    
    /**
     * 学生Action类
     * @author Administrator
     *
     */
    public class StudentAction extends ActionSupport implements ServletRequestAware{
    
    	/**
    	 * 
    	 */
    	private static final long serialVersionUID = 1L;
    	
    	private StudentDao studentDao=new StudentDao();
    	private HttpServletRequest request;
    	
    	private String mainPage;
    	
    	private Student student;
    	private String error;
    	
    	private String page;
    	private int total;
    	private String pageCode;
    	
    	private List<Student> studentList;
    	
    	private Student s_student;
    	
    	private String id;  // 学生编号
    	
    	private String title; // 标题
    	
    	public Student getStudent() {
    		return student;
    	}
    	public void setStudent(Student student) {
    		this.student = student;
    	}
    	public String getError() {
    		return error;
    	}
    	public void setError(String error) {
    		this.error = error;
    	}
    	
    	public String getMainPage() {
    		return mainPage;
    	}
    	public void setMainPage(String mainPage) {
    		this.mainPage = mainPage;
    	}
    	
    	
    	
    	
    	public String getPageCode() {
    		return pageCode;
    	}
    	public void setPageCode(String pageCode) {
    		this.pageCode = pageCode;
    	}
    	public int getTotal() {
    		return total;
    	}
    	public void setTotal(int total) {
    		this.total = total;
    	}
    	public String getPage() {
    		return page;
    	}
    	public void setPage(String page) {
    		this.page = page;
    	}
    	public Student getS_student() {
    		return s_student;
    	}
    	public void setS_student(Student s_student) {
    		this.s_student = s_student;
    	}
    	public List<Student> getStudentList() {
    		return studentList;
    	}
    	public void setStudentList(List<Student> studentList) {
    		this.studentList = studentList;
    	}
    	
    	
    	public String getId() {
    		return id;
    	}
    	public void setId(String id) {
    		this.id = id;
    	}
    	
    	
    	public String getTitle() {
    		return title;
    	}
    	public void setTitle(String title) {
    		this.title = title;
    	}
    	/**
    	 * 登录验证
    	 * @return
    	 * @throws Exception
    	 */
    	public String login()throws Exception{
    		HttpSession session=request.getSession();
    		Student currentUser=studentDao.login(student);
    		if(currentUser==null){
    			error="准考证号或者密码错误!";
    			return ERROR;
    		}else{
    			session.setAttribute("currentUser", currentUser);
    			return SUCCESS;
    		}
    	}
    	
    	/**
    	 * 修改密码预操作
    	 * @return
    	 * @throws Exception
    	 */
    	public String preUpdatePassword()throws Exception{
    		mainPage="student/updatePassword.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 修改密码
    	 * @return
    	 * @throws Exception
    	 */
    	public String updatePassword()throws Exception{
    		Student s=studentDao.getStudentById(student.getId());
    		s.setPassword(student.getPassword());
    		studentDao.saveStudent(s);
    		mainPage="student/updateSuccess.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 查询学生信息
    	 * @return
    	 * @throws Exception
    	 */
    	public String list()throws Exception{
    		HttpSession session=request.getSession();
    		if(StringUtil.isEmpty(page)){
    			page="1";
    		}
    		if(s_student!=null){
    			session.setAttribute("s_student", s_student);
    		}else{
    			Object o=session.getAttribute("s_student");
    			if(o!=null){
    				s_student=(Student)o;
    			}else{
    				s_student=new Student();
    			}
    		}
    		PageBean pageBean=new PageBean(Integer.parseInt(page),Integer.parseInt(PropertiesUtil.getValue("pageSize")));
    		studentList=studentDao.getStudents(s_student,pageBean);
    		total=studentDao.studentCount(s_student);
    		pageCode=PageUtil.genPagation(request.getContextPath()+"/student!list",total, Integer.parseInt(page), Integer.parseInt(PropertiesUtil.getValue("pageSize")));
    		mainPage="student/studentList.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 获取学生
    	 * @return
    	 * @throws Exception
    	 */
    	public String getStudentById()throws Exception{
    		student=studentDao.getStudent(id);
    		mainPage="student/studentSave.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 保存学生
    	 * @return
    	 * @throws Exception
    	 */
    	public String saveStudent()throws Exception{
    		if(StringUtil.isEmpty(student.getId())){
    			student.setId("JS"+DateUtil.getCurrentDateStr());			
    		}
    		studentDao.saveStudent(student);
    		return "save";
    	}
    	
    	/**
    	 * 删除学生
    	 * @return
    	 * @throws Exception
    	 */
    	public String deleteStudent()throws Exception{
    		student=studentDao.getStudent(id);
    		studentDao.studentDelete(student);
    		JSONObject resultJson=new JSONObject();
    		resultJson.put("success",true);
    		ResponseUtil.write(resultJson,ServletActionContext.getResponse());
    		return null;
    	}
    	
    	/**
    	 * 预添加操作
    	 * @return
    	 * @throws Exception
    	 */
    	public String preSave()throws Exception{
    		if(StringUtil.isNotEmpty(id)){
    			student=studentDao.getStudent(id);
    			title="修改学生信息";
    		}else{
    			title="添加学生信息";
    		}
    		mainPage="student/studentSave.jsp";
    		return SUCCESS;
    	}
    	
    	/**
    	 * 注销用户
    	 * @throws Exception
    	 */
    	public String logout()throws Exception{
    		request.getSession().invalidate();
    		return "logout";
    	}
    	
    	public void setServletRequest(HttpServletRequest request) {
    		this.request=request;
    	}
    	
    
    
    }

2.1：

2.2：

package com.ischoolbar.programmer.dao;
    
    import org.hibernate.Query;
    import org.hibernate.Session;
    
    import com.ischoolbar.programmer.model.Manager;
    import com.ischoolbar.programmer.util.HibernateUtil;
    
    /**
     * 管理员DAO类
     * @author lizun
     *
     */
    public class ManagerDao {
    
    	/**
    	 * 管理员登录验证
    	 * @param student
    	 * @return
    	 * @throws Exception
    	 */
    	public Manager login(Manager manager)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		Query query=session.createQuery("from Manager as m where m.userName=:userName and m.password=:password ");
    		query.setString("userName", manager.getUserName());
    		query.setString("password", manager.getPassword());
    		Manager resultManager=(Manager)query.uniqueResult();
    		session.getTransaction().commit();
    		return resultManager;
    	}
    }

2.3：

package com.ischoolbar.programmer.dao;
    
    import java.util.List;
    
    import org.hibernate.Query;
    import org.hibernate.Session;
    
    import com.ischoolbar.programmer.model.Paper;
    import com.ischoolbar.programmer.util.HibernateUtil;
    
    /**
     * 试卷DAO类
     * @author 
     *
     */
    public class PaperDao {
    
    	/**
    	 * 获取所有试卷
    	 * @return
    	 * @throws Exception
    	 */
    	public List<Paper> getPapers()throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		Query query=session.createQuery("from Paper");
    		@SuppressWarnings("unchecked")
    		List<Paper> paperList=(List<Paper>)query.list();
    		session.getTransaction().commit();
    		return paperList;
    	}
    	
    	/**
    	 * 获取指定试卷
    	 * @param paperId
    	 * @return
    	 * @throws Exception
    	 */
    	public Paper getPaper(String paperId)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		Paper paper=(Paper)session.get(Paper.class, Integer.parseInt(paperId));
    		session.getTransaction().commit();
    		return paper;
    	}
    	
    	/**
    	 * 保存试卷实体
    	 * @param paper
    	 * @throws Exception
    	 */
    	public void savePaper(Paper paper)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		session.merge(paper);
    		session.getTransaction().commit();
    	}
    	
    	/**
    	 * 删除试卷
    	 * @param paper
    	 * @throws Exception
    	 */
    	public void paperDelete(Paper paper)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		session.delete(paper);
    		session.getTransaction().commit();
    	}
    }

2.4：

package com.ischoolbar.programmer.dao;
    
    import java.math.BigInteger;
    import java.util.List;
    
    import org.hibernate.Query;
    import org.hibernate.Session;
    
    import com.ischoolbar.programmer.model.PageBean;
    import com.ischoolbar.programmer.model.Question;
    import com.ischoolbar.programmer.model.Student;
    import com.ischoolbar.programmer.util.HibernateUtil;
    import com.ischoolbar.programmer.util.StringUtil;
    
    /**
     * 问题DAO类
     * @author lizun
     *
     */
    public class QuestionDao {
    
    	/**
    	 * 通过问题id获取问题实体
    	 * @param questionId
    	 * @return
    	 * @throws Exception
    	 */
    	public Question getQuestion(String questionId)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		Question question=(Question) session.get(Question.class, Integer.parseInt(questionId));
    		session.getTransaction().commit();
    		return question;
    	}
    	
    	/**
    	 * 判断执行的试卷下有无题目
    	 * @param paperId
    	 * @return
    	 * @throws Exception
    	 */
    	public boolean existQuestionByPaperId(String paperId)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		Query query=session.createQuery("from Question as q where q.paper.id=:paperId");
    		query.setString("paperId", paperId);
    		@SuppressWarnings("unchecked")
    		List<Student> studentList=(List<Student>)query.list();
    		session.getTransaction().commit();
    		if(studentList.size()>0){
    			return true;
    		}else{
    			return false;
    		}
    	}
    	
    	/**
    	 * 获取所有题目
    	 * @param s_question
    	 * @param pageBean
    	 * @return
    	 * @throws Exception
    	 */
    	public List<Question> getQuestions(Question s_question,PageBean pageBean)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		StringBuffer hql=new StringBuffer("from Question");
    		if(StringUtil.isNotEmpty(s_question.getSubject())){
    			hql.append(" and subject like '%"+s_question.getSubject()+"%'");
    		}
    		Query query=session.createQuery(hql.toString().replaceFirst("and", "where"));
    		if(pageBean!=null){
    			query.setFirstResult(pageBean.getStart());
    			query.setMaxResults(pageBean.getPageSize());
    		}
    		@SuppressWarnings("unchecked")
    		List<Question> questionList=(List<Question>)query.list();
    		session.getTransaction().commit();
    		return questionList;
    	}
    	
    	/**
    	 * 查询试题记录数
    	 * @param s_question
    	 * @return
    	 * @throws Exception
    	 */
    	public int questionCount(Question s_question)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		StringBuffer sql=new StringBuffer("select count(*) from t_question");
    		if(StringUtil.isNotEmpty(s_question.getSubject())){
    			sql.append(" and subject like '%"+s_question.getSubject()+"%'");
    		}
    		Query query=session.createSQLQuery(sql.toString().replaceFirst("and", "where"));
    		int count=((BigInteger)query.uniqueResult()).intValue();
    		session.getTransaction().commit();
    		return count;
    	}
    	
    
    	
    	/**
    	 * 保存试题实体
    	 * @param question
    	 * @throws Exception
    	 */
    	public void saveQuestion(Question question)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		session.merge(question);
    		session.getTransaction().commit();
    	}
    	
    	/**
    	 * 删除试题
    	 * @param question
    	 * @throws Exception
    	 */
    	public void deleteQuestion(Question question)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		session.delete(question);
    		session.getTransaction().commit();
    	}
    }

2.5：

package com.ischoolbar.programmer.dao;
    
    import java.math.BigInteger;
    import java.util.List;
    
    import org.hibernate.Query;
    import org.hibernate.Session;
    
    import com.ischoolbar.programmer.model.PageBean;
    import com.ischoolbar.programmer.model.Student;
    import com.ischoolbar.programmer.util.HibernateUtil;
    import com.ischoolbar.programmer.util.StringUtil;
    
    /**
     * 学生DAO类
     * @author lizun
     *
     */
    public class StudentDao {
    
    	/**
    	 * 学生登录
    	 * @param student
    	 * @return
    	 * @throws Exception
    	 */
    	public Student login(Student student)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		Query query=session.createQuery("from Student as s where s.id=:id and s.password=:password ");
    		query.setString("id", student.getId());
    		query.setString("password", student.getPassword());
    		Student resultStu=(Student)query.uniqueResult();
    		session.getTransaction().commit();
    		return resultStu;
    	}
    	
    	/**
    	 * 通过id获取学生实体
    	 * @param id
    	 * @return
    	 * @throws Exception
    	 */
    	public Student getStudentById(String id)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		Student student=(Student)session.get(Student.class, id);
    		session.getTransaction().commit();
    		return student;
    	}
    	
    	/**
    	 * 保存学生实体
    	 * @param student
    	 * @throws Exception
    	 */
    	public void saveStudent(Student student)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		session.merge(student);
    		session.getTransaction().commit();
    	}
    	
    	/**
    	 * 获取所有学生
    	 * @return
    	 * @throws Exception
    	 */
    	public List<Student> getStudents(Student s_student,PageBean pageBean)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		StringBuffer hql=new StringBuffer("from Student");
    		if(StringUtil.isNotEmpty(s_student.getId())){
    			hql.append(" and id like '%"+s_student.getId()+"%'");
    		}
    		if(StringUtil.isNotEmpty(s_student.getName())){
    			hql.append(" and name like '%"+s_student.getName()+"%'");
    		}
    		Query query=session.createQuery(hql.toString().replaceFirst("and", "where"));
    		if(pageBean!=null){
    			query.setFirstResult(pageBean.getStart());
    			query.setMaxResults(pageBean.getPageSize());
    		}
    		@SuppressWarnings("unchecked")
    		List<Student> studentList=(List<Student>)query.list();
    		session.getTransaction().commit();
    		return studentList;
    	}
    	
    	/**
    	 * 查询学生记录数
    	 * @param s_student
    	 * @return
    	 * @throws Exception
    	 */
    	public int studentCount(Student s_student)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		StringBuffer sql=new StringBuffer("select count(*) from t_student");
    		if(StringUtil.isNotEmpty(s_student.getId())){
    			sql.append(" and id like '%"+s_student.getId()+"%'");
    		}
    		if(StringUtil.isNotEmpty(s_student.getName())){
    			sql.append(" and name like '%"+s_student.getName()+"%'");
    		}
    		Query query=session.createSQLQuery(sql.toString().replaceFirst("and", "where"));
    		int count=((BigInteger)query.uniqueResult()).intValue();
    		session.getTransaction().commit();
    		return count;
    	}
    	
    	/**
    	 * 保存学生
    	 * @param student
    	 * @throws Exception
    	 */
    	public void studentSave(Student student)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		session.merge(student);
    		session.getTransaction().commit();
    	}
    	
    	/**
    	 * 删除学生
    	 * @param student
    	 * @throws Exception
    	 */
    	public void studentDelete(Student student)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		session.delete(student);
    		session.getTransaction().commit();
    	}
    	
    	/**
    	 * 通过id获取学生
    	 * @param id
    	 * @return
    	 * @throws Exception
    	 */
    	public Student getStudent(String id)throws Exception{
    		Session session=HibernateUtil.getSessionFactory().getCurrentSession();
    		session.beginTransaction();
    		Student student=(Student) session.get(Student.class, id);
    		session.getTransaction().commit();
    		return student;
    	}
    }

3.1：

3.2：

3.3：

package com.ischoolbar.programmer.model;
    
    /**
     * 分页Model类
     * @author 
     *
     */
    public class PageBean {
    
    	private int page; // 第几页
    	private int pageSize; // 每页记录数
    	private int start;  // 起始页
    	
    	
    	public PageBean(int page, int pageSize) {
    		super();
    		this.page = page;
    		this.pageSize = pageSize;
    	}
    	
    	public int getPage() {
    		return page;
    	}
    	public void setPage(int page) {
    		this.page = page;
    	}
    	
    	public int getPageSize() {
    		return pageSize;
    	}
    
    	public void setPageSize(int pageSize) {
    		this.pageSize = pageSize;
    	}
    
    	public int getStart() {
    		return (page-1)*pageSize;
    	}
    	
    	
    }

3.4：

package com.ischoolbar.programmer.model;
    
    import java.sql.Date;
    import java.util.HashSet;
    import java.util.Set;
    
    import javax.persistence.Entity;
    import javax.persistence.FetchType;
    import javax.persistence.GeneratedValue;
    import javax.persistence.Id;
    import javax.persistence.OneToMany;
    import javax.persistence.Table;
    
    import org.hibernate.annotations.GenericGenerator;
    
    /**
     * 试卷表
     * @author Administrator
     *
     */
    @Entity
    @Table(name="t_paper")
    public class Paper {
    
    	private int id;
    	private String paperName;
    	private Date joinDate;
    	private Set<Question> questions=new HashSet<Question>();
    	
    	@Id
    	@GeneratedValue(generator="_native")
    	@GenericGenerator(name="_native",strategy="native")
    	public int getId() {
    		return id;
    	}
    	public void setId(int id) {
    		this.id = id;
    	}
    	
    	public String getPaperName() {
    		return paperName;
    	}
    	public void setPaperName(String paperName) {
    		this.paperName = paperName;
    	}
    	public Date getJoinDate() {
    		return joinDate;
    	}
    	public void setJoinDate(Date joinDate) {
    		this.joinDate = joinDate;
    	}
    	@OneToMany(mappedBy="paper",fetch=FetchType.EAGER)
    	public Set<Question> getQuestions() {
    		return questions;
    	}
    	public void setQuestions(Set<Question> questions) {
    		this.questions = questions;
    	}
    	
    	
    }

3.5：

package com.ischoolbar.programmer.model;
    
    import java.sql.Date;
    
    import javax.persistence.Entity;
    import javax.persistence.GeneratedValue;
    import javax.persistence.Id;
    import javax.persistence.JoinColumn;
    import javax.persistence.ManyToOne;
    import javax.persistence.Table;
    import javax.persistence.Transient;
    
    import org.hibernate.annotations.Cascade;
    import org.hibernate.annotations.CascadeType;
    import org.hibernate.annotations.GenericGenerator;
    
    /**
     * 题目表
     * @author Administrator
     *
     */
    @Entity
    @Table(name="t_question")
    public class Question {
    
    	private int id;  // 问题编号
    	private String subject; // 题目名称
    	private String type; // 题目类型 1 是单选题 2 是多选题
    	private Date joinTime; // 添加时间
    	
    	private Paper paper; // 试卷
    	
    	private String optionA; // 选项A
    	private String optionB; // 选项B
    	private String optionC; // 选项C
    	private String optionD; // 选项D
    	private String answer; // 答案
    	
    	private String userAnswer; // 用户回答
    	
    	@Id
    	@GeneratedValue(generator="_native")
    	@GenericGenerator(name="_native",strategy="native")
    	public int getId() {
    		return id;
    	}
    	public void setId(int id) {
    		this.id = id;
    	}
    	public String getSubject() {
    		return subject;
    	}
    	public void setSubject(String subject) {
    		this.subject = subject;
    	}
    	public String getType() {
    		return type;
    	}
    	public void setType(String type) {
    		this.type = type;
    	}
    	public Date getJoinTime() {
    		return joinTime;
    	}
    	public void setJoinTime(Date joinTime) {
    		this.joinTime = joinTime;
    	}
    	@ManyToOne
    	@Cascade(value={CascadeType.SAVE_UPDATE})
    	@JoinColumn(name="paperId")
    	public Paper getPaper() {
    		return paper;
    	}
    	public void setPaper(Paper paper) {
    		this.paper = paper;
    	}
    	public String getOptionA() {
    		return optionA;
    	}
    	public void setOptionA(String optionA) {
    		this.optionA = optionA;
    	}
    	public String getOptionB() {
    		return optionB;
    	}
    	public void setOptionB(String optionB) {
    		this.optionB = optionB;
    	}
    	public String getOptionC() {
    		return optionC;
    	}
    	public void setOptionC(String optionC) {
    		this.optionC = optionC;
    	}
    	public String getOptionD() {
    		return optionD;
    	}
    	public void setOptionD(String optionD) {
    		this.optionD = optionD;
    	}
    	public String getAnswer() {
    		return answer;
    	}
    	public void setAnswer(String answer) {
    		this.answer = answer;
    	}
    	
    	@Transient
    	public String getUserAnswer() {
    		return userAnswer;
    	}
    	public void setUserAnswer(String userAnswer) {
    		this.userAnswer = userAnswer;
    	}
    	
    	
    	
    }

3.6：

package com.ischoolbar.programmer.model;
    
    import javax.persistence.Column;
    import javax.persistence.Entity;
    import javax.persistence.GeneratedValue;
    import javax.persistence.GenerationType;
    import javax.persistence.Id;
    import javax.persistence.Table;
    import javax.persistence.Transient;
    
    import org.hibernate.Session;
    import org.hibernate.SessionFactory;
    
    import com.ischoolbar.programmer.util.HibernateUtil;
    
    @Entity
    @Table(name="t_student")
    public class Student {
    
    	private String id; // 编号、准考证
    	private String name; // 姓名
    	private String password; // 密码
    	private String sex; // 性别
    	private String prefession; // 专业
    	private String cardNo; // 身份证
    	
    	private String flag="2"; // 用户类型  1：管理员  2：考生
    	
    	@Id
    	@Column(name = "id", unique = true, nullable = false,length=40)
    	public String getId() {
    		return id;
    	}
    	public void setId(String id) {
    		this.id = id;
    	}
    	
    	@Column(name = "name",length=20)
    	public String getName() {
    		return name;
    	}
    	public void setName(String name) {
    		this.name = name;
    	}
    	
    	@Column(name = "password",length=20)
    	public String getPassword() {
    		return password;
    	}
    	public void setPassword(String password) {
    		this.password = password;
    	}
    	
    	@Column(name = "sex",length=5)
    	public String getSex() {
    		return sex;
    	}
    	public void setSex(String sex) {
    		this.sex = sex;
    	}
    	
    	@Column(name = "prefession",length=40)
    	public String getPrefession() {
    		return prefession;
    	}
    	public void setPrefession(String prefession) {
    		this.prefession = prefession;
    	}
    	
    	@Column(name = "cardNo",length=50)
    	public String getCardNo() {
    		return cardNo;
    	}
    	public void setCardNo(String cardNo) {
    		this.cardNo = cardNo;
    	}
    	@Transient
    	public String getFlag() {
    		return flag;
    	}
    	public void setFlag(String flag) {
    		this.flag = flag;
    	}
    	
    }

4.1：

package com.ischoolbar.programmer.test;
    
    import org.hibernate.Session;
    import org.hibernate.SessionFactory;
    
    import com.ischoolbar.programmer.util.HibernateUtil;
    
    public class Test {
    
    	public static void main(String[] args) {
    		SessionFactory sessionFactory=HibernateUtil.getSessionFactory();
    		Session session=sessionFactory.openSession(); // 生成一个session
    	    session.beginTransaction(); // 开启事务
    	    
    	   
    	    
    	    session.getTransaction().commit(); // 提交事务
    	    session.close(); // 关闭session
    	}
    }

5.1：

package com.ischoolbar.programmer.util;
    
    import java.text.SimpleDateFormat;
    import java.util.Date;
    
    public class DateUtil {
    
    	public static String formatDate(Date date,String format){
    		String result="";
    		SimpleDateFormat sdf=new SimpleDateFormat(format);
    		if(date!=null){
    			result=sdf.format(date);
    		}
    		return result;
    	}
    	
    	
    	public static Date formatString(String str,String format) throws Exception{
    		if(StringUtil.isEmpty(str)){
    			return null;
    		}
    		SimpleDateFormat sdf=new SimpleDateFormat(format);
    		return sdf.parse(str);
    	}
    	
    	public static String getCurrentDateStr()throws Exception{
    		Date date=new Date();
    		SimpleDateFormat sdf=new SimpleDateFormat("yyyyMMddhhmmss");
    		return sdf.format(date);
    	}
    }

5.2：

package com.ischoolbar.programmer.util;
    
    import org.hibernate.SessionFactory;
    import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
    import org.hibernate.cfg.Configuration;
    import org.hibernate.service.ServiceRegistry;
    
    /**
     * Hibernate工厂类
     * @author Administrator
     *
     */
    public class HibernateUtil {
    
    	private static final SessionFactory sessionFactory = buildSessionFactory();
    
    	/**
    	 * 获取静态工厂
    	 * @return
    	 */
        private static SessionFactory buildSessionFactory() {
        	Configuration configuration = new Configuration().configure();
    		ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();
    		return configuration.buildSessionFactory(serviceRegistry);
        }
    
        /**
         * 获取session工厂
         * @return
         */
        public static SessionFactory getSessionFactory() {
            return sessionFactory;
        }
    }

5.3：

package com.ischoolbar.programmer.util;
    
    public class PageUtil {
    
    
    	
    	public static String genPagation(String targetUrl,int totalNum,int currentPage,int pageSize){
    		int totalPage=totalNum%pageSize==0?totalNum/pageSize:totalNum/pageSize+1;
    		StringBuffer pageCode=new StringBuffer();
    		pageCode.append("<li><a href='"+targetUrl+"?page=1'>首页</a></li>");
    		if(currentPage==1){
    			pageCode.append("<li class='disabled'><a href='#'>上一页</a></li>");			
    		}else{
    			pageCode.append("<li><a href='"+targetUrl+"?page="+(currentPage-1)+"'>上一页</a></li>");			
    		}
    		for(int i=currentPage-2;i<=currentPage+2;i++){
    			if(i<1||i>totalPage){
    				continue;
    			}
    			if(i==currentPage){
    				pageCode.append("<li class='active'><a href='#'>"+i+"</a></li>");		
    			}else{
    				pageCode.append("<li><a href='"+targetUrl+"?page="+i+"'>"+i+"</a></li>");	
    			}
    		}
    		if(currentPage==totalPage){
    			pageCode.append("<li class='disabled'><a href='#'>下一页</a></li>");			
    		}else{
    			pageCode.append("<li><a href='"+targetUrl+"?page="+(currentPage+1)+"'>下一页</a></li>");		
    		}
    		pageCode.append("<li><a href='"+targetUrl+"?page="+totalPage+"'>尾页</a></li>");
    		return pageCode.toString();
    	}
    }

5.4：

package com.ischoolbar.programmer.util;
    
    import java.io.IOException;
    import java.io.InputStream;
    import java.util.Properties;
    
    public class PropertiesUtil {
    
    	public static String getValue(String key){
    		Properties prop = new Properties();
    		InputStream in = new PropertiesUtil().getClass().getResourceAsStream("/exam.properties");
    		try {
    			prop.load(in);
    		} catch (IOException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		}
    		return (String)prop.get(key);
    	}
    	
    	
    }

5.5：

package com.ischoolbar.programmer.util;
    
    import java.io.PrintWriter;
    
    import javax.servlet.http.HttpServletResponse;
    
    
    public class ResponseUtil {
    
    	public static void write(Object o,HttpServletResponse response)throws Exception{
    		response.setContentType("text/html;charset=utf-8");
    		PrintWriter out=response.getWriter();
    		out.println(o.toString());
    		out.flush();
    		out.close();
    	}
    }

5.6：

package com.ischoolbar.programmer.util;
    
    /**
     * 字符串工具类
     * @author 
     *
     */
    public class StringUtil {
    
    	/**
    	 * 判断是否是空
    	 * @param str
    	 * @return
    	 */
    	public static boolean isEmpty(String str){
    		if("".equals(str)|| str==null){
    			return true;
    		}else{
    			return false;
    		}
    	}
    	
    	/**
    	 * 判断是否不是空
    	 * @param str
    	 * @return
    	 */
    	public static boolean isNotEmpty(String str){
    		if(!"".equals(str)&&str!=null){
    			return true;
    		}else{
    			return false;
    		}
    	}
    }
    
    配置文件：
    exam.properties:

pageSize=10

hibernate.cfg.xml:

<?xml version='1.0' encoding='utf-8'?>
    <!DOCTYPE hibernate-configuration PUBLIC
            "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
            "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
    
    <hibernate-configuration>
    
        <session-factory>
    
            
            <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
            <property name="connection.url">jdbc:mysql://localhost:5722/db_exam?useUnicode=true&characterEncoding=UTF-8</property>
            <property name="connection.username">root</property>
            <property name="connection.password">lz123456</property>
    
           
            
            <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>
    
            
            <property name="current_session_context_class">thread</property>
    
            
            <property name="show_sql">true</property>
    
            
            <property name="hbm2ddl.auto">update</property>
            
            <mapping class="com.ischoolbar.programmer.model.Student"/>
            <mapping class="com.ischoolbar.programmer.model.Question"/>
            <mapping class="com.ischoolbar.programmer.model.Paper"/>
         	<mapping class="com.ischoolbar.programmer.model.Exam"/>
         	<mapping class="com.ischoolbar.programmer.model.Manager"/>
    
        </session-factory>
    
    </hibernate-configuration>

struts.xml:

<?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
        "http://struts.apache.org/dtds/struts-2.3.dtd">
    
    <struts>
    
    	
    	<package name="studentInfo" namespace="/" extends="struts-default">
    		
    		<action name="student" class="com.ischoolbar.programmer.action.StudentAction">
    			<result name="success">/main.jsp</result>
    			<result name="error">/login.jsp</result>
    			<result name="logout" type="redirect">/login.jsp</result>
    			<result name="save" type="redirectAction">student!list</result>
    		</action>
    		
    		<action name="paper" class="com.ischoolbar.programmer.action.PaperAction">
    			<result name="success">/main.jsp</result>
    			<result name="save" type="redirectAction">paper!paperList</result>
    		</action>
    		
    		<action name="exam" class="com.ischoolbar.programmer.action.ExamAction">
    			<result name="success">/main.jsp</result>
    		</action>
    		
    		<action name="question" class="com.ischoolbar.programmer.action.QuestionAction">
    			<result name="success">/main.jsp</result>
    			<result name="save" type="redirectAction">question!list</result>
    		</action>
    		
    		<action name="manager" class="com.ischoolbar.programmer.action.ManagerAction">
    			<result name="success">/main.jsp</result>
    			<result name="error">/login2.jsp</result>
    			<result name="logout" type="redirect">/login2.jsp</result>
    		</action>
    		
    	</package>
    	
    
         
    </struts>

(4)jsp代码：  
![在这里插入图片描述][20190725154007650.png]

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
    <div>
    	<h1>登录成功!</hl>
    	</br>
    	<h2>欢迎使用!</h2>
    </div>
    <div>
    <h1>考生须知：</h1>
    	(1) 考试前30分钟，考生必须进入考场，考试后20分钟，迟到考生不得进入考场。
    	</br>
    	(2) 考生进入考场后，需要服从工作人员的安排，进入考场后，需要在考试规定的签到表上进行签到。
    	</br>
    	(3) 进入考场必须携带有效证件。
    	</br>
    	(4) 入座后不得交头接耳。
    	</br>
    	(5) 考试开始后，考生可以交卷但是不得大声喧哗，影响他人。
    	</br>
    	(6) 考生在考试期间，应当自觉遵守考场纪律，如被监考人员发现违反考场纪律的行为，应当主动配合监考人员的检查。
    	</br>
    	(7) 自觉遵守考场纪律，保持考场安静，如出现无法登录服务器，信息有误，运行故障等异常情况，请立即联系监考人员。
    	</br>
    </div>

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
    <div align="center">
    		<div class="foot">Copyright © 2019-  </div>
    </div>
    ``
    
    `<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
    <div align="center">
    	<div style="background: url('${pageContext.request.contextPath}/image/firsthead.png');height:90px;width:1000px;float:right;" ><font style="float: right;padding: 65px 20px 20px 10px;">欢迎：<strong>${currentUser.name }</strong></font></div>
    </div>

首页

*  考生信息管理
 *  考生成绩查询
 *  试卷管理
 *  题目管理
 *  退出系统
 *  在线考试
 *  成绩查询
 *  修改密码
 *  退出系统

\`\`\`

![在这里插入图片描述][20190725154132232.png]

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
    <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
    <div class="data_list">
    	<div class="data_info">
    		<p>考生成绩列表</p>
    	</div>
    	<div class="search_content">
    		<form action="${pageContext.request.contextPath}/exam!examList" method="post">
    			<table align="center">
    				<tr>
    					<td><label>准考证号：</label></td>
    					<td><input type="text" id="s_id" name="s_exam.student.id" value="${s_exam.student.id }"/></td>
    					<td> </td>
    					<td><label>姓名：</label></td>
    					<td><input type="text" id="s_name" name="s_exam.student.name" value="${s_exam.student.name }"/></td>
    					<td> </td>
    					<td><button class="btn btn-primary" style="margin-bottom: 8px;" type="submit" >查询</button></td>
    				</tr>
    			</table>
    		</form>
    	</div>
    	<div class="data_content">
    		<table class="table table-bordered table-hover">
    			 <tr>
    				<th>序号</th>
    				<th>准考证号</th>
    				<th>考生姓名</th>
    				<th>试卷名称</th>
    				<th>考试日期</th>
    				<th>单选题得分</th>
    				<th>多选题得分</th>
    				<th>总分</th>
    			</tr>
    			<c:forEach var="exam" items="${examList}" varStatus="status" >
    				<tr>
    					<td>${status.index+1 }</td>
    					<td>${exam.student.id }</td>
    					<td>${exam.student.name }</td>
    					<td>${exam.paper.paperName }</td>
    					<td><fmt:formatDate value="${exam.examDate }" type="date" pattern="yyyy-MM-dd"/></td>
    					<td>${exam.singleScore }</td>
    					<td>${exam.moreScore }</td>
    					<td><font color="red">${exam.score }</font></td>
    				</tr>
    			</c:forEach>
    	  </table>
    	</div>
    	<div class="pagination pagination-centered">
    	 	 <ul>
    	    	${pageCode }
    	 	 </ul>
    	</div>
    </div>

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
    <p class="examResult" align="center">
    	试卷已提交，您本次考试的成绩为：<font color="red">${exam.score }</font>分！
    </p>

<%@ page language=“java” contentType=“text/html; charset=utf-8” pageEncoding=“utf-8”%>  
<%@ taglib uri=“[http://java.sun.com/jsp/jstl/core][http_java.sun.com_jsp_jstl_core]” prefix=“c”%>  
<%@ taglib prefix=“fmt” uri=“[http://java.sun.com/jsp/jstl/fmt][http_java.sun.com_jsp_jstl_fmt]”%>

$\{currentUser.name \} 成绩列表

<table> 
 <tbody> 
  <tr> 
   <th>序号</th> 
   <th>试卷名称</th> 
   <th>考试日期</th> 
   <th>单选题得分</th> 
   <th>多选题得分</th> 
   <th>总分</th> 
  </tr> 
  <tr> 
   <td>${status.index+1 }</td> 
   <td>${exam.paper.paperName }</td> 
   <td></td> 
   <td>${exam.singleScore }</td> 
   <td>${exam.moreScore }</td> 
   <td><font>${exam.score }</font></td> 
  </tr> 
 </tbody> 
</table>

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
    <script type="text/javascript">
    	var examTime=20*60; 
    	var useTime=0,remainTime=examTime; 
    	
    	// 显示使用时间和剩余时间
    	function showCount(){
    		if(remainTime==0){
    			document.getElementById("myForm").submit();
    		}
    		useTime+=1;
    		remainTime-=1;
    		var hourU=Math.floor(useTime/3600);
    		var minuteU=Math.floor((useTime-hourU*3600)/60);
    		var secondU=Math.floor(useTime-hourU*3600-minuteU*60);
    		document.getElementById("useTime").innerHTML=format(hourU)+":"+format(minuteU)+":"+format(secondU);
    		
    		var hourR=Math.floor(remainTime/3600);
    		var minuteR=Math.floor((remainTime-hourR*3600)/60);
    		var secondR=Math.floor(remainTime-hourR*3600-minuteR*60);
    		document.getElementById("remainTime").innerHTML=format(hourR)+":"+format(minuteR)+":"+format(secondR);
    	}
    	
    	// 格式化日期数字
    	function format(timeNumber){
    		if(timeNumber==0){
    			return "00";
    		}else if(timeNumber<10){
    			return "0"+timeNumber;
    		}else{
    			return timeNumber;
    		}
    	}
    	
    	window.setInterval("showCount()",1000);
    </script>
    <div class="data_list">
    	<div class="data_info">
    		<p>        考试时间：<strong>20分钟</strong>                
    		计时：     <font id="useTime" style="font-weight: bold;"></font>             
    		剩余时间：     <font id="remainTime" style="font-weight: bold;"></font></p>
    		<hr/>
    		<p class="examTitle">${paper.paperName}  考试卷</p>
    		<p class="examScoreInfo">( 满分120  单选题60分  多选题60分 )</p>
    	</div>
    	<div class="data_content">
    		<strong><big>一，单选题</big></strong>（每题20分，答错不得分）<br/><br/>
    		<form id="myForm" action="exam!add" method="post">
    		<input type="hidden" name="exam.student.id" value="${currentUser.id }"/>
    		<input type="hidden" name="exam.paper.id" value="${paper.id }"/>
    		<c:forEach var="s" items="${squestionList }" varStatus="status">
    			<strong>[ ${status.index+1} ] ${s.subject }</strong><br/><br/>
    			<label class="radio">
    			  <input type="radio" name="id-r-${s.id }"  value="A">
    			  ${s.optionA }
    			</label>
    			<label class="radio">
    			  <input type="radio" name="id-r-${s.id }"  value="B">
    			  ${s.optionB }
    			</label>
    			<label class="radio">
    			  <input type="radio" name="id-r-${s.id }"  value="C">
    			  ${s.optionC }
    			</label>
    			<label class="radio">
    			  <input type="radio" name="id-r-${s.id }"  value="D">
    			  ${s.optionD }
    			</label>
    			<br/>
    		</c:forEach>
    		<strong><big>二，多选题</big></strong>（每题30分，答错不得分）<br/><br/>
    		<c:forEach var="m" items="${mquestionList }" varStatus="status">
    			<strong>[ ${status.index+1} ] ${m.subject }</strong><br/><br/>
    			<label class="checkbox">
    			  <input type="checkbox" name="id-c-${m.id }" value="A">
    			  ${m.optionA }
    			</label>
    			<label class="checkbox">
    			  <input type="checkbox" name="id-c-${m.id }" value="B">
    			  ${m.optionB }
    			</label>
    			<label class="checkbox">
    			  <input type="checkbox" name="id-c-${m.id }" value="C">
    			  ${m.optionC }
    			</label>
    			<label class="checkbox">
    			  <input type="checkbox" name="id-c-${m.id }" value="D">
    			  ${m.optionD }
    			</label>
    			<br/>
    		</c:forEach>
    		<button class="btn btn-primary" type="submit">交卷</button>
    		</form>
    	</div>
    </div>

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
    <script type="text/javascript">
    	function checkForm(){
    		var paperId=$("#paperId").val();
    		if(paperId==null||paperId==""){
    			alert("请选择考试试卷！");
    			return false;
    		}
    		return true;
    	}
    </script>
    <div class="data_list">
    	<div class="data_content">
    		<form action="paper!getDetailPaper" method="post" onsubmit="return checkForm()">
    			<table width="40%" align="center">
    				<tr>
    					<td><label><strong>请选择考试试卷：</strong></label></td>
    					<td>
    						<select id="paperId" name="paperId">
    							<option value="">请选择...</option>
    							<c:forEach var="paper" items="${paperList }">
    								<option value="${paper.id}" >${paper.paperName}</option>
    							</c:forEach>
    						</select>
    					</td>
    				</tr>
    				<tr>
    					<td colspan="2"> </td>
    				</tr>
    				<tr>
    					<td>
    						<input type="submit" class="btn  btn-primary" value="确定"/>
    					</td> 
    					<td>
    						<input type="button" class="btn  btn-primary" value="返回" onclick="javascript:history.back() "/>
    					</td>
    				</tr>
    			</table>
    		</form> 
    	</div>
    </div>

![在这里插入图片描述][20190725154437452.png]

![在这里插入图片描述][20190725154536675.png]

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
    <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
    <script type="text/javascript">
    	function checkForm(){
    		var subject=$("#subject").val();
    		var type=$("#type").val();
    		var paperName=$("#paperName").val();
    		var joinTime=$("#joinTime").val();
    		var optionA=$("#optionA").val();
    		var optionB=$("#optionB").val();
    		var optionC=$("#optionC").val();
    		var optionD=$("#optionD").val();
    		var answer=$("#answer").val();
    		if(subject==null||subject==""){
    			$("#error").html("考试题目不能为空！");
    			return false;
    		}
    		if(type==null||type==""){
    			$("#error").html("请选择题目类型！");
    			return false;
    		}
    		if(paperName==null||paperName==""){
    			$("#error").html("请选择试卷！");
    			return false;
    		}
    		if(joinTime==null||joinTime==""){
    			$("#error").html("加入时间不能为空！");
    			return false;
    		}
    		if(optionA==null||optionA==""){
    			$("#error").html("选项一不能为空！");
    			return false;
    		}
    		if(optionB==null||optionB==""){
    			$("#error").html("选项二不能为空！");
    			return false;
    		}
    		if(optionC==null||optionC==""){
    			$("#error").html("选项三不能为空！");
    			return false;
    		}
    		if(optionD==null||optionD==""){
    			$("#error").html("选项四不能为空！");
    			return false;
    		}
    		if(answer==null||answer==""){
    			$("#error").html("答案不能为空！");
    			return false;
    		}
    		return true;
    	}
    </script>
    <div class="data_list">
    	<div class="data_info">
    		<p>${title }</p>
    	</div>
    	<div class="data_content" >
    		<form action="question!saveQuestion" method="post" onsubmit="return checkForm()">
    		<table width="90%" align="center">
    			<tr>
    				<td><label>考试题目：</label></td>
    				<td><input type="text" id="subject" name="question.subject" value="${question.subject }" class="input-xxlarge"/></td>
    			</tr>
    			<tr>
    				<td><label>题目类型：</label></td>
    				<td>
    					<select id="type" name="question.type">
    						<option value="">请选择题目类型...</option>
    						<option value="1" ${question.type==1?'selected':'' }>单选题</option>
    						<option value="2" ${question.type==2?'selected':'' }>多选题</option>
    					 </select>
    				</td>
    			</tr>
    			<tr>
    				<td><label>所属试卷：</label></td>
    				<td>
    					<select id="paperName" name="question.paper.id">
    						<option value="">请选择试卷...</option>
    						<c:forEach var="paper" items="${paperList }">
    							<option value="${paper.id }" ${paper.id==question.paper.id?'selected':'' }>${paper.paperName }</option>
    						</c:forEach>
    					 </select>
    				</td>
    			</tr>
    			<tr>
    				<td><label>加入时间：</label></td>
    				<td><input type="text" id="joinTime" name="question.joinTime" class="Wdate" onClick="WdatePicker()" value="<fmt:formatDate value="${question.joinTime }" type="date" pattern="yyyy-MM-dd"/>"/></td>
    			</tr>
    			<tr>
    				<td><label>选项一：</label></td>
    				<td><input type="text" id="optionA" name="question.optionA" value="${question.optionA }"/></td>
    			</tr>
    			<tr>
    				<td><label>选项二：</label></td>
    				<td><input type="text" id="optionB" name="question.optionB" value="${question.optionB }"/></td>
    			</tr>
    			<tr>
    				<td><label>选项三：</label></td>
    				<td><input type="text" id="optionC" name="question.optionC" value="${question.optionC }"/></td>
    			</tr>
    			<tr>
    				<td><label>选项四：</label></td>
    				<td><input type="text" id="optionD" name="question.optionD" value="${question.optionD }"/></td>
    			</tr>
    			<tr>
    				<td><label>题目答案：</label></td>
    				<td><input type="text" id="answer" name="question.answer" value="${question.answer }"/>  (多选题答案用逗号隔开，如"A,D")</td>
    			</tr>
    			<tr>
    				<td>
    					<input type="hidden" id="questionId" name="questionId" value="${question.id }"/><input type="submit" class="btn btn-primary" value="保存"/>
    				</td>
    				<td>
    					
    		   		   <button class="btn btn-primary" type="button" onclick="javascript:history.back()">返回</button>  <font id="error" color="red">${error }</font>
    				</td>
    			</tr>
    		</table>
    		</form>
    	</div>
    </div>

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
    <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
    <div class="data_list">
    	<div class="data_info">
    		<p>查看试题</p>
    	</div>
    	<div class="data_content" >
    		<table width="90%" align="center">
    			<tr>
    				<td><label>考试题目：</label></td>
    				<td><input type="text" id="subject" value="${question.subject }" readonly="readonly" class="input-xxlarge"/></td>
    			</tr>
    			<tr>
    				<td><label>题目类型：</label></td>
    				<td>
    					<c:choose>
    						<c:when test="${question.type==1 }">
    							<input type="text" id="type"  value="单选题" readonly="readonly"/>
    						</c:when>
    						<c:otherwise>
    							<input type="text" id="type"  value="多选题" readonly="readonly"/>
    						</c:otherwise>
    					</c:choose>
    				</td>
    			</tr>
    			<tr>
    				<td><label>所属试卷：</label></td>
    				<td><input type="text" id="paperName" readonly="readonly" value="${question.paper.paperName }"/></td>
    			</tr>
    			<tr>
    				<td><label>加入时间：</label></td>
    				<td><input type="text" id="joinTime" readonly="readonly" value="<fmt:formatDate value="${question.joinTime }" type="date" pattern="yyyy-MM-dd"/>"/></td>
    			</tr>
    			<tr>
    				<td><label>选项一：</label></td>
    				<td><input type="text" id="optionA" readonly="readonly" value="${question.optionA }"/></td>
    			</tr>
    			<tr>
    				<td><label>选项二：</label></td>
    				<td><input type="text" id="optionB" readonly="readonly" value="${question.optionB }"/></td>
    			</tr>
    			<tr>
    				<td><label>选项三：</label></td>
    				<td><input type="text" id="optionC" readonly="readonly" value="${question.optionC }"/></td>
    			</tr>
    			<tr>
    				<td><label>选项四：</label></td>
    				<td><input type="text" id="optionD" readonly="readonly" value="${question.optionD }"/></td>
    			</tr>
    			<tr>
    				<td><label>题目答案：</label></td>
    				<td><input type="text" id="answer" readonly="readonly" value="${question.answer }"/></td>
    			</tr>
    			<tr>
    				<td colspan="2">
    		   		   <button class="btn btn-primary" type="button" onclick="javascript:history.back()">返回</button>
    				</td>
    			</tr>
    		</table>
    	</div>
    </div>

![在这里插入图片描述][20190725154641554.png]

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
    <script type="text/javascript">
    	function checkForm(){
    		var oldPassword=$("#oldPassword").val();
    		var newPassword1=$("#newPassword1").val();
    		var newPassword2=$("#newPassword2").val();
    		if(oldPassword==null||oldPassword==""){
    			alert("请输入原密码！");
    			return false;
    		}
    		if(oldPassword!='${currentUser.password}'){
    			alert("原密码错误，请重新输入");
    			return false;
    		}
    		if(newPassword1==null||newPassword1==""){
    			alert("请输入新密码！");
    			return false;
    		}
    		if(newPassword2==null||newPassword2==""){
    			alert("请输入确认新密码！");
    			return false;
    		}
    		if(newPassword1!=newPassword2){
    			alert("确认新密码填写错误，请重新输入！");
    			return false;
    		}
    		return true;
    	}
    </script>
    <div class="data_list">
    	<div class="data_info">
    		<p>修改个人密码</p>
    	</div>
    	<div class="data_content">
    		<form action="student!updatePassword" method="post" onsubmit="return checkForm()">
    			<table width="40%" align="center">
    				<tr>
    					<td><label>用户名：</td>
    					<td>
    						<input type="text" value="${currentUser.id }" name="student.id" readonly="readonly"/>
    					</td>
    				</tr>
    				<tr>
    					<td><label>原密码：</td>
    					<td>
    						<input type="password" id="oldPassword" />
    					</td>
    				</tr>
    				<tr>
    					<td><label>新密码：</td>
    					<td>
    						<input type="password" id="newPassword1"  name="student.password"/>
    					</td>
    				</tr>
    				<tr>
    					<td><label>确认新密码：</td>
    					<td>
    						<input type="password" id="newPassword2"  />
    					</td>
    				</tr>
    				<tr>
    					<td colspan="2"> </td>
    				</tr>
    				<tr>
    					<td colspan="2">
    						<input type="submit" class="btn  btn-primary" value="修改密码"/>
    					</td> 
    					
    				</tr>
    			</table>
    		</form> 
    	</div>
    </div>

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
    
    <div style="padding-top: 30px;padding-bottom: 30px;">
    	<p align="center" style="font-size: 30px;">密码修改成功，下一次登录生效！</p>
    </div>

![在这里插入图片描述][2019072515481253.png]

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
      <display-name>Exam</display-name>
      <welcome-file-list>
        <welcome-file>login.jsp</welcome-file>
      </welcome-file-list>
      
      <filter>
            <filter-name>StrutsPrepareAndExecuteFilter</filter-name>
    		<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
      </filter>
      <filter-mapping>
    	   <filter-name>StrutsPrepareAndExecuteFilter</filter-name>
    	   <url-pattern>/*</url-pattern>
      </filter-mapping>
      
    </web-app>

![在这里插入图片描述][20190725154840544.png]

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>考生登录</title>
    <link href="${pageContext.request.contextPath}/style/studentInfo.css" rel="stylesheet">
    <link href="${pageContext.request.contextPath}/bootstrap/css/bootstrap.css" rel="stylesheet">
    <link href="${pageContext.request.contextPath}/bootstrap/css/bootstrap-responsive.css" rel="stylesheet">
    <script src="${pageContext.request.contextPath}/bootstrap/js/jQuery.js"></script>
    <script src="${pageContext.request.contextPath}/bootstrap/js/bootstrap.js"></script>
    
    <script type="text/javascript">
    	function checkForm(){
    		var id=document.getElementById("id").value;
    		var password=document.getElementById("password").value;
    		if(id==null||id==""){
    			alert("准考证号不能为空！");
    			return false;
    		}
    		if(password==null||password==""){
    			alert("登录密码不能为空！");
    			return false;
    		}
    		return true;
    	}
    	
    	function resetValue(){
    		document.getElementById("id").value="";
    		document.getElementById("password").value="";
    	}
    </script>
    </head>
    <body >
    <div align="center" style="padding-top: 20px;" >
    		<form action="student!login" method="post" onsubmit="return checkForm()">
    		<table  width="1004" height="584" background="image/user.jpg" >
    			<tr height="200">
    				<td colspan="4"></td>
    			</tr>
    			<tr height="10">
    				<td width="68%"></td>
    				<td width="10%"><label>准考证号：</label></td>
    				<td><input type="text" id="id" name="student.id" value="${student.id }" placeholder="请输入准考证号"/></td>
    				<td width="30%"></td>
    			</tr>
    			<tr height="10">
    				<td width="40%"></td>
    				<td width="10%"><label>登录密码：</label></td>
    				<td><input type="password" id="password" name="student.password" value="${student.password }" placeholder="请输入密码"/></td>
    				<td width="30%"></td>
    			</tr>
    			<tr height="10">
    				<td width="40%"></td>
    				<td width="10%"><button class="btn btn-primary" type="submit">登录</button></td>
    				<td>
    					<button class="btn btn-primary" type="button"  onclick="resetValue()">重置</button>
    					<a class="btn btn-primary" style="margin-left:30px;" href="login2.jsp">登录后台</a>
    				</td>
    				<td width="20%"></td>
    			</tr>
    			<tr >
    				<td></td>
    				<td></td>
    				<td></td>
    				<td style=""></td>
    			</tr>
    		</table>
    		</form>
    	</div>
    </body>
    </html>
    <script type="text/javascript">
    	if('${error}'!=''){
    		alert('${error}');
    	}
    </script>

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>管理员登录考试系统</title>
    <link href="${pageContext.request.contextPath}/style/studentInfo.css" rel="stylesheet">
    <link href="${pageContext.request.contextPath}/bootstrap/css/bootstrap.css" rel="stylesheet">
    <link href="${pageContext.request.contextPath}/bootstrap/css/bootstrap-responsive.css" rel="stylesheet">
    <script src="${pageContext.request.contextPath}/bootstrap/js/jQuery.js"></script>
    <script src="${pageContext.request.contextPath}/bootstrap/js/bootstrap.js"></script>
    
    <script type="text/javascript">
    	function checkForm(){
    		var userName=document.getElementById("userName").value;
    		var password=document.getElementById("password").value;
    		if(userName==null||userName==""){
    			alert("用户名不能为空！");
    			return false;
    		}
    		if(password==null||password==""){
    			alert("密码不能为空！");
    			return false;
    		}
    		return true;
    	}
    	
    	function resetValue(){
    		document.getElementById("userName").value="";
    		document.getElementById("password").value="";
    	}
    </script>
    </head>
    <body >
    <div align="center" style="padding-top: 20px;" >
    		<form action="manager!login" method="post" onsubmit="return checkForm()">
    		<table  width="1004" height="584" background="image/admain.jpg" >
    			<tr height="200">
    				<td colspan="4"></td>
    			</tr>
    			<tr height="10">
    				<td width="68%"></td>
    				<td width="10%"><label>用户名：</label></td>
    				<td><input type="text" id="userName" name="manager.userName" value="${manager.userName }" placeholder="请输入管理员用户名"/></td>
    				<td width="30%"></td>
    			</tr>
    			<tr height="10">
    				<td width="40%"></td>
    				<td width="10%"><label>密码：</label></td>
    				<td><input type="password" id="password" name="manager.password" value="${manager.password }" placeholder="请输入管理员密码"/></td>
    				<td width="30%"></td>
    			</tr>
    			<tr height="10">
    				<td width="40%"></td>
    				<td width="10%"><button class="btn btn-primary" type="submit">登录</button></td>
    				<td>
    					<button class="btn btn-primary" type="button"  onclick="resetValue()">重置</button>
    					<a class="btn btn-primary" style="margin-left:30px;" href="login.jsp">考生登录</a>
    				</td>
    				<td width="30%"></td>
    			</tr>
    			<tr>
    				<td></td>
    			</tr>
    		</table>
    		</form>
    	</div>
    </body>
    </html>
    <script type="text/javascript">
    	if('${error}'!=''){
    		alert('${error}');
    	}
    </script>

还有一些必要的开发包：  
![在这里插入图片描述][20190725155029196.png]  
![在这里插入图片描述][20190725155056881.png]  
这个很重要：  
![在这里插入图片描述][2019072515521714.png]

.foot{
    	text-align: center;
    	margin-top:18px;
    	margin-bottom: 18px;
    }
    
    .defaultPage{
    	text-align:center;
    	margin-top: 120px;
    	font-size: 25px;
    	color: lavender;
    	height: 300px;
    }
    
    .examMenu{
    	margin-top: 15px;
    }
    
    .data_list{
    	margin-top: 10px;
    }
    
    .data_list .data_content{
    	margin-top: 15px;
    }
    
    .data_list .data_info .examTitle{
    	font-size: 30px;
    	font-weight: bold;
    	text-align: center;
    	padding-top: 30px;
    }
    
    .data_list .data_info .examScoreInfo{
    	padding:10px;
    	font-weight: bold;
    	text-align: right;
    }
    
    .examResult{
    	font-size: 20px;
    	padding: 120px;
    }
    
    .data_list .data_info p{
    	text-align: center;
    	font-size: 20px;
    	font-weight: bold;
    	padding-bottom: 10px;
    }
    
    .data_list .search_content form{
    	text-align:center;
    	margin: 0px;
    }

（5）实现效果：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70 3]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70 4]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70 5]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70 6]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70 7]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70 8]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70 9]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70 10]  
学生端和考生端差不多就不截图了。

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70]: /images/20211122/d4e16c626684421b8040c026fa39ea0f.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQyMzIxMzM2_size_16_color_FFFFFF_t_70 1]: /images/20211122/df1a5d6a96484c348928c4ab7fd39561.png
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