SSH框架配置步骤

分手后的思念是犯贱 2022-05-15 13:44 189阅读 0赞

**一、目的：**

1.  使初学者能更好的去了解SSH框架。
2.  给以后的自己，也给别人一个参考。
3.  尝试搭建一个完整的SSH框架项目。

**二、SSH三大框架的概述**

**Struts + Spring + Hibernate三者各自的特点都是什么？**

Struts 的MVC设计模式可以使我们的逻辑变得很清晰，主要负责表示层的显示。

Spring 的IOC和AOP可以使我们的项目在最大限度上解藕。

hibernate的就是实体对象的持久化了, 数据库的封装。

**表现层**、**中间层**（业务逻辑层）和**数据服务层**。三层体系将业务规则、数据访问及合法性校验等工作放在中间层处理。客户端不直接与数据库交互，而是通过组件与中间层建立连接，再由中间层与数据库交互。

表现层是传统的JSP技术。

中间层采用的是流行的Spring+Hibernate，为了将控制层与业务逻辑层分离，又细分为以下几种。

Web层，就是MVC模式里面的“C”（controller<action>），负责控制业务逻辑层与表现层的交互，调用业务逻辑层，并将业务数据返回给表现层作组织表现，该系统的MVC框架采用Struts。

Service层（就是业务逻辑层），负责实现业务逻辑。业务逻辑层以DAO层为基础，通过对DAO组件的正面模式包装，完成系统所要求的业务逻辑。

DAO层，负责与持久化对象交互。该层封装了数据的增、删、查、改的操作。

PO，持久化对象。通过实体关系映射工具将关系型数据库的数据映射成对象，很方便地实现以面向对象方式操作数据库。

Spring的作用贯穿了整个中间层，将Web层、Service层、DAO层及PO无缝整合，其数据服务层用来存放数据。

**三、项目实战案例**

**创建项目有两种方式：web动态项目及maven项目（建议使用maven创建项目）。**

创建web动态工程注意classpath路径

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NDE3OTgz_size_27_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NDE3OTgz_size_27_color_FFFFFF_t_70 1][]

**导入本次项目要使用到的jar包:**

**struts：****[http://struts.apache.org/][http_struts.apache.org]**

**hibernate:**[**https://sourceforge.net/projects/hibernate/files/latest/download?source=files**][https_sourceforge.net_projects_hibernate_files_latest_download_source_files] （访问就提示下载，无需做其它操作）

**spring:[http://maven.springframework.org/release/org/springframework/spring/][http_maven.springframework.org_release_org_springframework_spring]**

在lib文件夹下添加相关jar包依赖（建议使用maven创建项目，便于jar包管理，避免jar版本冲突）

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**相关配置文件:**

**web.xml**

<table> 
 <tbody> 
 <tr> 
 <td>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"&gt; &nbsp;&nbsp;&nbsp; &nbsp;&lt;display-name&gt;ssh&lt;/display-name&gt; &nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;!-- 将Spring配置到web项目中 --&gt; &nbsp; &nbsp;&nbsp; &nbsp;&lt;context-param&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;param-name&gt;contextConfigLocation&lt;/param-name&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;param-value&gt;classpath:applicationContext.xml&lt;/param-value&gt; &nbsp;&nbsp; &nbsp;&lt;/context-param&gt; &nbsp;&nbsp; &nbsp;&lt;listener&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;listener-class&gt;org.springframework.web.context.ContextLoaderListener&lt;/listener-class&gt; &nbsp;&nbsp; &nbsp;&lt;/listener&gt; &nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&lt;!-- 将struts配置到web项目中 --&gt; &nbsp;&nbsp; &nbsp;&lt;filter&gt; &nbsp;&nbsp; &nbsp; &nbsp;&lt;filter-name&gt;struts&lt;/filter-name&gt; &nbsp;&nbsp; &nbsp; &nbsp;&lt;filter-class&gt;org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter&lt;/filter-class&gt; &nbsp;&nbsp; &nbsp;&lt;/filter&gt; &nbsp;&nbsp; &nbsp;&lt;filter-mapping&gt; &nbsp;&nbsp; &nbsp; &nbsp;&lt;filter-name&gt;struts&lt;/filter-name&gt; &nbsp;&nbsp; &nbsp; &nbsp;&lt;url-pattern&gt;/*&lt;/url-pattern&gt; &nbsp;&nbsp; &nbsp;&lt;/filter-mapping&gt; &lt;/web-app&gt;</td> 
 </tr> 
 </tbody> 
</table>

**spring-servlet.xml**

<table> 
 <tbody> 
 <tr> 
 <td> &lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;beans xmlns="http://www.springframework.org/schema/beans" &nbsp;&nbsp; &nbsp;xmlns:mvc="http://www.springframework.org/schema/mvc" &nbsp;&nbsp; &nbsp;xmlns:context="http://www.springframework.org/schema/context" &nbsp;&nbsp; &nbsp;xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;xsi:schemaLocation="http://www.springframework.org/schema/beans &nbsp;&nbsp; &nbsp;http://www.springframework.org/schema/beans/spring-beans.xsd &nbsp;&nbsp; &nbsp;http://www.springframework.org/schema/mvc &nbsp;&nbsp; &nbsp;http://www.springframework.org/schema/mvc/spring-mvc.xsd &nbsp;&nbsp; &nbsp;http://www.springframework.org/schema/context &nbsp;&nbsp; &nbsp;http://www.springframework.org/schema/context/spring-context.xsd"&gt;&nbsp; &nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&lt;!-- 在实际开发中通常都需配置 mvc:annotation-driven标签,这个标签是开启注解 --&gt; &nbsp;&nbsp; &nbsp;&lt;mvc:annotation-driven/&gt; &nbsp;&nbsp; &nbsp;&lt;mvc:default-servlet-handler/&gt; &nbsp;&nbsp; &nbsp;&lt;!-- 开启文件上传 --&gt; &nbsp;&nbsp; &nbsp;&lt;bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/&gt;&nbsp; &nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&lt;!-- 指定哪些包下经过controller --&gt; &nbsp;&nbsp; &nbsp;&lt;context:component-scan base-package="com.blog.admin.controller,com.blog.blog.controller"&gt;&lt;/context:component-scan&gt; &nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&lt;!-- 视图解析器ViewResolver --&gt; &nbsp;&nbsp; &nbsp;&lt;!-- 解析jsp,默认支持jstl prefix：前缀， suffix：后缀 --&gt; &nbsp; &nbsp; &lt;bean &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;class="org.springframework.web.servlet.view.InternalResourceViewResolver"&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;property name="prefix" value="/WEB-INF/jsp/" /&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;property name="suffix" value=".jsp" /&gt; &nbsp;&nbsp; &nbsp;&lt;/bean&gt;&nbsp; &nbsp;&nbsp; &nbsp; &lt;!-- 自动处理静态资源文件 --&gt; &nbsp; &nbsp; &lt;mvc:default-servlet-handler /&gt; &nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;!-- 配置拦截器 --&gt; &nbsp;&nbsp; &nbsp;&lt;mvc:interceptors&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;mvc:interceptor&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;mvc:mapping path="/*" /&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;bean class="com.blog.admin.interceptor.TestInterceptor"/&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;/mvc:interceptor&gt; &nbsp;&nbsp; &nbsp;&lt;/mvc:interceptors&gt; &lt;/beans&gt;&nbsp; </td> 
 </tr> 
 </tbody> 
</table>

**applicationContext.xml**

<table> 
 <tbody> 
 <tr> 
 <td>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;!-- context 注解 --&gt; &lt;!-- tx 事务--&gt; &lt;beans xmlns="http://www.springframework.org/schema/beans" &nbsp;&nbsp; &nbsp;xmlns:context="http://www.springframework.org/schema/context"&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;xmlns:tx="http://www.springframework.org/schema/tx"&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;xmlns:aop="http://www.springframework.org/schema/aop"&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;xsi:schemaLocation="http://www.springframework.org/schema/beans &nbsp;&nbsp; &nbsp;http://www.springframework.org/schema/beans/spring-beans.xsd &nbsp;&nbsp; &nbsp;http://www.springframework.org/schema/context&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;http://www.springframework.org/schema/context/spring-context.xsd&nbsp; &nbsp;&nbsp; &nbsp;http://www.springframework.org/schema/tx&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;http://www.springframework.org/schema/tx/spring-tx.xsd &nbsp;&nbsp; &nbsp;http://www.springframework.org/schema/aop&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;http://www.springframework.org/schema/aop/spring-aop.xsd"&gt;&nbsp; &nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&lt;!-- 开启注解 --&gt; &nbsp;&nbsp; &nbsp;&lt;context:annotation-config/&gt; &nbsp;&nbsp; &nbsp;&lt;!-- 指定哪些包下受baen管制 --&gt; &nbsp;&nbsp; &nbsp;&lt;context:component-scan base-package="com.blog"&gt;&lt;/context:component-scan&gt; &nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&lt;!-- 数据源(数据库) --&gt; &nbsp;&nbsp; &nbsp;&lt;bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;destroy-method="close"&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;property name="url" value="jdbc:mariadb://localhost:3300/blog"&gt;&lt;/property&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;property name="username" value="root"&gt;&lt;/property&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;property name="password" value="root"&gt;&lt;/property&gt; &nbsp;&nbsp; &nbsp;&lt;/bean&gt; &nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&lt;!-- 配置SessionFactory --&gt; &nbsp;&nbsp; &nbsp;&lt;bean id="sessionFactory" &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;class="org.springframework.orm.hibernate5.LocalSessionFactoryBean"&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;property name="dataSource" ref="dataSource"&gt;&lt;/property&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;!-- 扩展使用Hibernate原生的配置 --&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;property name="hibernateProperties"&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;props&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;prop key="dialect"&gt;org.hibernate.dialect.MariaDB53Dialect&lt;/prop&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;prop key="show_sql"&gt;true&lt;/prop&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;/props&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;/property&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;!-- 映射实体类(Entity) --&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;property name="packagesToScan" value="com.blog.blog.entity, &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;com.blog.admin.entity"/&gt; &nbsp;&nbsp; &nbsp;&lt;/bean&gt; &nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&lt;!-- 事务层 --&gt; &nbsp;&nbsp; &nbsp;&lt;bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager"&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;property name="sessionFactory" ref="sessionFactory"&gt;&lt;/property&gt; &nbsp;&nbsp; &nbsp;&lt;/bean&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&lt;!-- 事务注解 --&gt; &nbsp;&nbsp; &nbsp;&lt;tx:annotation-driven/&gt; &nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&lt;!-- 开启aop --&gt; &nbsp;&nbsp; &nbsp;&lt;aop:aspectj-autoproxy/&gt; &lt;/beans&gt;</td> 
 </tr> 
 </tbody> 
</table>

**struts.xml**

<table> 
 <tbody> 
 <tr> 
 <td>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;!DOCTYPE struts PUBLIC &nbsp; &nbsp; "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" &nbsp; &nbsp; "http://struts.apache.org/dtds/struts-2.3.dtd"&gt; &lt;struts&gt; &nbsp;&nbsp; &nbsp;&lt;package namespace="/" name="default" extends="struts-default"&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;!-- 设置和配置action的拦截器 --&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;interceptors&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;interceptor name="loginInterceptor" class="com.blogAdmin.action.articleTpye.LoginInterceptorAction"&gt;&lt;/interceptor&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;/interceptors&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;!-- 定义为全局结果,这样action和result都能访问 --&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;global-results&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;result name="loginRedirect" type="redirectAction"&gt;loginPage&lt;/result&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;/global-results&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;!-- 登陆成功跳转的页面 --&gt;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;action name="list" class="com.blogAdmin.action.articleTpye.ListAction"&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;interceptor-ref name="defaultStack"&gt;&lt;/interceptor-ref&gt;&nbsp;&nbsp; &nbsp;&lt;!-- 系统默认拦截器 --&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;interceptor-ref name="loginInterceptor"&gt;&lt;/interceptor-ref&gt;&nbsp;&nbsp; &nbsp;&lt;!-- 自己定义的拦截器 --&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;!-- 首页面 --&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;result name="list"&gt;/WEB-INF/jsp/articleType/list.jsp&lt;/result&gt; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&lt;/action&gt; &nbsp;&nbsp; &nbsp;&lt;/package&gt; &lt;/struts&gt;</td> 
 </tr> 
 </tbody> 
</table>

**后台代码（部分，不完整）**

**Entity层（具体根据数据库表及字段进行创建相应实体类）**

初始化Hibernate的entity

package com.blogAdmin.init;
    
    import javax.servlet.ServletException;
    import javax.servlet.http.HttpServlet;
    import org.hibernate.SessionFactory;
    import org.hibernate.boot.MetadataSources;
    import org.hibernate.boot.registry.StandardServiceRegistry;
    import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
    
    public class HibernateInit extends HttpServlet {
    	private static final long serialVersionUID = 1L;
    
    	public static SessionFactory sf;
    
    	@Override
    	public void init() throws ServletException {
    		super.init();
    
    		final StandardServiceRegistry registry = new StandardServiceRegistryBuilder().configure().build();
    		sf = new MetadataSources(registry).buildMetadata().buildSessionFactory();
    	}
    
    }

**dao层**

userDao类

package com.blogAdmin.dao;
 
 import java.io.Serializable;
 
 import org.hibernate.Session;
 import org.hibernate.query.Query;
 
 import com.opensymphony.xwork2.ActionSupport;
 import com.blogAdmin.entity.Article;
 import com.blogAdmin.entity.User;
 import com.blogAdmin.init.HibernateInit;
 /**
 * 用户登陆的dao
 * @author admin
 *
 */
 public class UserDao extends ActionSupport implements Serializable {
 	private static final long serialVersionUID = -9124089639234157594L;
 	
 	public User findByUserName(String username){
 		Session session = HibernateInit.sf.openSession();
 		String hql = "from User where username=?";
 		Query<User> dbUser = session.createQuery(hql,User.class);
 		dbUser.setParameter(0, username);
 		return dbUser.uniqueResult();
 	}
 	
 	public Article getByUser(String id){
 		Article article = null;
 		Session session = HibernateInit.sf.openSession();
 		article = session.get(Article.class, id);
 		session.close();
 		return article;
 	} 
 }

（增删改查）dao层

package com.blogAdmin.dao;
 
 import java.math.BigInteger;
 import java.util.List;
 import org.hibernate.Session;
 import org.hibernate.Transaction;
 import org.hibernate.query.Query;
 import com.blogAdmin.entity.Article;
 import com.blogAdmin.init.HibernateInit;
 import com.blogAdmin.vo.ArticleVo;
 
 public class ArticleDao {
 	/**
 	 * 添加
 	 * @param article
 	 */
 	public void save(Article article) {
 		Session session = HibernateInit.sf.openSession();
 		Transaction ts = session.beginTransaction();
 		session.save(article);
 		ts.commit();
 		session.close();
 	}
 	/**
 	 * 删除
 	 * @param id
 	 */
 	public void delete(String id) {
 		Session session = HibernateInit.sf.openSession();
 		Transaction ts = session.beginTransaction();
 		String hql = "delete from Article where id=?";
 		session.createQuery(hql).setParameter(0, id).executeUpdate();
 		ts.commit();
 		session.close();
 	}
 	/**
 	 * 修改
 	 * @param article
 	 */
 	public void update(Article article) {
 		Session session = HibernateInit.sf.openSession();
 		Transaction ts = session.beginTransaction();
 		session.update(article);
 		ts.commit();
 		session.close();
 	}
 	/**
 	 * 分页查询
 	 * @param pageNum
 	 * @param pageSize
 	 * @return
 	 */
 	public List<ArticleVo> pageList(int pageNum, int pageSize) {
 		List<ArticleVo> returnList = null;
 		Session session = HibernateInit.sf.openSession();
 		Query<ArticleVo> query = session.createNativeQuery("select a.*,u.username name,t.name articleType from article a join user u join article_type t on a.user_id=u.id and a.type_id=t.id order by a.create_time",ArticleVo.class);
 		query.setFirstResult((pageNum - 1) * pageSize);
 		query.setMaxResults(pageSize);
 		returnList = query.list();
 		session.close();
 		return returnList;
 	}
 	/**
 	 * 获取总条数
 	 * @return
 	 */
 	public BigInteger totalCount() {
 		BigInteger totalCount = new BigInteger("0");
 		Session session = HibernateInit.sf.openSession();
 		totalCount = (BigInteger) session.createNativeQuery("select count(id) from article").uniqueResult();
 		session.close();
 		return totalCount;
 	}
 	
 	/**
 	 * 根据id查询一条数据
 	 * @param typeId
 	 * @return
 	 */
 	public Article getById(String id){
 		Article article = null;
 		Session session = HibernateInit.sf.openSession();
 		article = session.get(Article.class, id);
 		session.close();
 		return article;
 	}
 }

**service<接口>及serviceImpl<实现类>层**

略

**action层**

LoginAction类

package com.blogAdmin.action.articleTpye;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpSession;
    import org.apache.struts2.convention.annotation.Action;
    import org.apache.struts2.convention.annotation.Result;
    import org.apache.struts2.convention.annotation.Results;
    import org.apache.struts2.interceptor.ServletRequestAware;
    import com.opensymphony.xwork2.ActionSupport;
    import com.blogAdmin.dao.UserDao;
    import com.blogAdmin.entity.User;
    import com.blogAdmin.vo.UserVo;
    /**
     * 登陆页面的action
     * @author admin
     *
     */
    @Results({@Result(location="/WEB-INF/jsp/login.jsp"),
    	@Result(name="list",type="redirectAction",location="list"),
    	@Result(name="loginPage",type="redirectAction",location="loginPage")})
    public class LoginAction extends ActionSupport implements ServletRequestAware{
    	private static final long serialVersionUID = 6690219852711831094L;
    	
    	private HttpSession session;	//获取session对象，将UserVo对象存入session
    	private UserVo userVo;
    	
    	public UserVo getUserVo() {
    		return userVo;
    	}
    
    	public void setUserVo(UserVo userVo) {
    		this.userVo = userVo;
    	}
    
    	/**
    	 * 1,打开登陆页面
    	 */
    	@Action("/loginPage")
    	public String loginPage() {
    		return SUCCESS;
    	}
    	
    	/**
    	 *2,登陆按钮action
    	 * @return
    	 */
    	@Action("/login")
    	public String login(){
    		//判断是否为空
    		String name = userVo.getUsername();
    		String pass = userVo.getPassword();
    		if(name==null||"".equals(name)&&pass==null||"".equals(pass)){
    			session.setAttribute("msg", "用户名或密码不能为空!");
    			return "loginPage";
    		}
    		UserDao dao = new UserDao();
    		User user = dao.findByUserName(userVo.getUsername());
    		if(user==null){
    			session.setAttribute("msg", "用户名或密码不正确！");
    			return "loginPage";
    		}
    		if (!user.getPassword().equals(pass)) {
    			session.setAttribute("msg", "用户名或密码不正确！");
    			return "loginPage";
    		}
    		session.setAttribute("userVo", userVo);
    		return "list";
    	}
    
    	@Override
    	public void setServletRequest(HttpServletRequest request) {
    		this.session = request.getSession();
    	}
    }

LoginInterceptorAction类

package com.blogAdmin.action.articleTpye;
    
    import javax.servlet.http.HttpSession;
    
    import org.apache.struts2.ServletActionContext;
    
    import com.opensymphony.xwork2.ActionInvocation;
    import com.opensymphony.xwork2.interceptor.Interceptor;
    
    public class LoginInterceptorAction implements Interceptor{
    	private static final long serialVersionUID = -7254285326542480257L;
    
    	@Override
    	public void destroy() {
    		
    	}
    
    	@Override
    	public void init() {
    		
    	}
    
    	@Override
    	public String intercept(ActionInvocation invocation) throws Exception {
    		HttpSession session = ServletActionContext.getRequest().getSession();	//通过struts的上下文，获取到session对象
    		Object userVo = session.getAttribute("userVo");
    		if (userVo==null) {
    			return "loginRedirect";	//如果为空，重定向到login页面;
    		}
    		return invocation.invoke();
    		
    	}
    
    }

PageAction相关类

package com.blogAdmin.action.articleTpye;
    
    import org.apache.struts2.ServletActionContext;
    import org.apache.struts2.convention.annotation.Action;
    import org.apache.struts2.convention.annotation.Result;
    import org.apache.struts2.convention.annotation.Results;
    import com.opensymphony.xwork2.ActionSupport;
    import com.blogAdmin.dao.ArticleTypeDao;
    import com.blogAdmin.entity.ArticleType;
    
    @Results({ @Result(name = "typeSave", location = "/WEB-INF/jsp/articleType/save.jsp"),
    @Result(name="updateType", location = "/WEB-INF/jsp/articleType/update.jsp"),
    @Result(name="redirectTypeSave",type="redirectAction",location="typeSave"),	
    @Result(name="redirectList",type="redirectAction",location="list"),	
    @Result(name = "list", location = "/WEB-INF/jsp/articleType/list.jsp")
    })
    public class ArticleTypeAction extends ActionSupport  {
    
    	private static final long serialVersionUID = 6780775618333937202L;
    	//添加
    	private String typeName;
    	//分页
    	private int pageNum;
    	private int pageSize=10;
    	//删除
    	private String typeId;
    	//修改时的对象
    	ArticleType articleType; 
    	
    	/**
    	 * 文章列表
    	 * @return
    	 */
    	@Action("/articleType/list")
    	public String list(){
    		ArticleTypeDao dao = new ArticleTypeDao();
    		ServletActionContext.getRequest().setAttribute("list", dao.pageList(pageNum, pageSize));
    		ServletActionContext.getRequest().setAttribute("totalCount", dao.totalCount());
    		return "list";
    	}
    	
    	/**
    	 * 进入添加页面
    	 * @return
    	 */
    	@Action("/articleType/typeSave")
    	public String typeSave() {
    		return "typeSave";
    	}
    
    	/**
    	 * 点击保存(添加分类)
    	 * @return
    	 */
    	@Action("/articleType/save")
    	public String save() {
    		ArticleTypeDao dao = new ArticleTypeDao();
    		dao.save(typeName);
    		return "redirectList";
    	}
    	
    	/**
    	 * 删除页面
    	 * @return
    	 */
    	@Action("/articleType/delete")
    	public void delete(){
    		ArticleTypeDao dao = new ArticleTypeDao();
    		dao.delete(typeId);
    	}
    	
    	/**
    	 * 进入编辑页面
    	 * @return
    	 */
    	@Action("/articleType/updateType")
    	public String updateType(){
    		ArticleTypeDao dao = new ArticleTypeDao();
    		ServletActionContext.getRequest().setAttribute("articleType", dao.getById(typeId));
    		return "updateType";
    	}
    	
    	/**
    	 * 点击修改
    	 * @return
    	 */
    	@Action("/articleType/update")
    	public String update() {
    		ArticleTypeDao dao = new ArticleTypeDao();
    		dao.update(articleType);
    		return "redirectList";
    	}
    	
    	public String getTypeName() {
    		return typeName;
    	}
    	
    	public void setTypeName(String typeName) {
    		this.typeName = typeName;
    	}
    
    	public int getPageNum() {
    		return pageNum;
    	}
    
    	public void setPageNum(int pageNum) {
    		this.pageNum = pageNum;
    	}
    
    	public int getPageSize() {
    		return pageSize;
    	}
    
    	public void setPageSize(int pageSize) {
    		this.pageSize = pageSize;
    	}
    
    	public String getTypeId() {
    		return typeId;
    	}
    
    	public void setTypeId(String typeId) {
    		this.typeId = typeId;
    	}
    
    	public ArticleType getArticleType() {
    		return articleType;
    	}
    
    	public void setArticleType(ArticleType articleType) {
    		this.articleType = articleType;
    	}
    	
    }

IndexAction类

package com.blogAdmin.action.articleTpye;
    
    import com.opensymphony.xwork2.ActionSupport;
    /**
     * 登陆成功后展示的页面
     * @author admin
     *
     */
    public class ListAction extends ActionSupport{
    
    	private static final long serialVersionUID = -7248676355265672252L;
    	/**
    	 * 首页面
    	 * @return
    	 */
    	@Override
    	public String execute() throws Exception {
    		return "list";
    	}
    }

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[http_struts.apache.org]: http://struts.apache.org/
[https_sourceforge.net_projects_hibernate_files_latest_download_source_files]: https://sourceforge.net/projects/hibernate/files/latest/download?source=files
[http_maven.springframework.org_release_org_springframework_spring]: http://maven.springframework.org/release/org/springframework/spring/
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