SpringMVC 表单注册页

谁借莪１个温暖的怀抱￠ 2022-05-18 10:38 174阅读 0赞

学习参考自[易百教程][Link 1]

1、程序目录如下

![70][]

2、controller：

package com.controller;
    
    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.ModelAttribute;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.servlet.ModelAndView;
    
    import com.model.User;
    
    @Controller
    public class RegisterController {
    
    	@RequestMapping(value="/register",method=RequestMethod.GET)
    	public ModelAndView register(){
    		User user=new User();
    		//user.setHoppies(new String[]{"看书","看电影","玩游戏","垃板胡","画画"});
    		user.setGender(0);	//设定默认值
    		ModelAndView modelAndView=new ModelAndView("register","command",user);//带参重定向
    		return modelAndView;
    	}
    	
    	@RequestMapping(value="getUserInfo",method=RequestMethod.POST)
    	public String getInfo(@ModelAttribute("SpringWeb")User user,Model model){
    		model.addAttribute("id",user.getId());
    		model.addAttribute("userName",user.getUserName());
    		model.addAttribute("password",user.getPassword());
    		model.addAttribute("gender",user.getGender());
    		model.addAttribute("hoppies",user.getHoppies());
    		model.addAttribute("country",user.getCountry());
    		model.addAttribute("remark",user.getRemark());
    		return "show";
    	}
    	
    	@ModelAttribute("countriesList")    //映射列表属性名，给视图中的列表赋值
    	public Map<String,String> getCountryList(){
    		Map<String,String> countriesList=new HashMap<String,String>();
    		countriesList.put("US","America");
    		countriesList.put("CN","China");
    		countriesList.put("JP","Japan");
    		countriesList.put("HK","HongKong");
    		return countriesList;	
    	}
    	
    	@ModelAttribute("hoppiesList")
    	public List<String> getHoppyList(){
    		List<String> hoppies=new ArrayList<String>();
    		hoppies.add("看书");
    		hoppies.add("电影");
    		hoppies.add("玩游戏");
    		hoppies.add("垃板胡");
    		hoppies.add("画画");
    		return hoppies;
    	}
    }

3、User

package com.model;
    
    public class User {
    	private String id;
    	private String userName;
    	private String password;
    	private int gender;
    	private String[] hoppies;
    	private String country;
    	private String remark;
    	public String getId() {
    		return id;
    	}
    	public void setId(String id) {
    		this.id = id;
    	}
    	public String getUserName() {
    		return userName;
    	}
    	public void setUserName(String userName) {
    		this.userName = userName;
    	}
    	public String getPassword() {
    		return password;
    	}
    	public void setPassword(String password) {
    		this.password = password;
    	}
    	public int getGender() {
    		return gender;
    	}
    	public void setGender(int gender) {
    		this.gender = gender;
    	}
    	public String[] getHoppies() {
    		return hoppies;
    	}
    	public void setHoppies(String[] hoppies) {
    		this.hoppies = hoppies;
    	}
    	public String getCountry() {
    		return country;
    	}
    	public void setCountry(String country) {
    		this.country = country;
    	}
    	public String getRemark() {
    		return remark;
    	}
    	public void setRemark(String remark) {
    		this.remark = remark;
    	}
    }

4、web.xml

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns="http://xmlns.jcp.org/xml/ns/javaee"
      xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee 
      http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" 
      id="WebApp_ID" version="3.1">
      <display-name>springMVC_register</display-name>
      
      	
      	<filter>
    		<filter-name>CharacterEncodingFilter</filter-name>	
    		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>	
    		<init-param>	
    			<param-name>encoding</param-name>	
    			<param-value>utf-8</param-value>	
    		</init-param>	
    	</filter>	
    	<filter-mapping>	
    		<filter-name>CharacterEncodingFilter</filter-name>	
    		<url-pattern>/*</url-pattern>	
    	</filter-mapping>
      
    	<servlet>
    		<servlet-name>spring</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		<load-on-startup>1</load-on-startup>
    	</servlet>
    	
    	<servlet-mapping>
    		<servlet-name>spring</servlet-name>
    		<url-pattern>/</url-pattern>
    	</servlet-mapping>
    	
    </web-app>

5、spring-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:context="http://www.springframework.org/schema/context"
        xmlns:mvc="http://www.springframework.org/schema/mvc"
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">
            
            <context:component-scan base-package="com.controller"/>
            
            <mvc:annotation-driven/>
            
            <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            	<property name="prefix" value="/jsp/"/>
            	<property name="suffix" value=".jsp"/>
            </bean>
            
     </beans>

6、register.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
    <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>   
        <title>My JSP 'register.jsp' starting page</title>
      </head>
      
      <body>
        <form:form action="/springMVC_register/getUserInfo" method="post">
        	<table>
        		<caption>User Register</caption>
        		<tr>
        			<td><form:hidden path="id" value="1001"/></td>
        		</tr>
        		<tr>
        			<td><form:label path="userName">用户名</form:label></td>
        			<td><form:input path="userName"/></td>
        		</tr>
        		<tr>
        			<td><form:label path="password">密码</form:label></td>
        			<td><form:password path="password"/></td>
        		</tr>
        		<tr>
        			<td><form:label path="gender">性别</form:label></td>
        			<td>
        				<form:radiobutton path="gender" label="男" value="0"/>
        				<form:radiobutton path="gender" label="女" value="1"/>
        			</td>
        		</tr>
        		<tr>
        			<td><form:label path="hoppies">爱好</form:label></td>
        			<td><form:checkboxes path="hoppies" items="${hoppiesList}"/></td>
        		</tr>
        		<tr>
        			<td><form:label path="country">国籍</form:label></td>
        			<td>
        				<form:select path="country">
        					<form:option label="请选择——" value="none"/>
        					<form:options items="${countriesList}"/>
        				</form:select>
        			</td>
        		</tr>
        		<tr>
        			<td><form:label path="remark">备注</form:label></td>
        			<td><form:textarea path="remark" cols="30" rows="3"></form:textarea></td>
        		</tr>
        		<tr>
        			<td><input type="reset" value="reset"/></td>
        			<td><input type="submit" value="submit"/></td>
        		</tr>
        	</table>
        </form:form>
      </body>
    </html>

7、show.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
    <%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
    %>
    
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
        <base href="<%=basePath%>">
        
        <title>My JSP 'show.jsp' starting page</title>
    
      </head>
      
      <body>
        <table>
        	<tr><td>id:</td><td>${id}</td></tr>
        	<tr><td>userName:</td><td>${userName}</td></tr>
        	<tr><td>password:</td><td>${password}</td></tr>
        	<tr><td>gender</td><td>${(gender==0?'男':'女')}</td></tr>
        	<tr><td>hoppies:</td><td>
    			<%
    				String[] hoppies=(String[])request.getAttribute("hoppies");
    				for(String hoppy: hoppies){
    					out.println(hoppy);
    				}
    			 %>
    		</td></tr>
        	<tr><td>country:</td><td>${country}</td></tr>
        	<tr><td>remark:</td><td>${remark}</td></tr>
        </table>
      </body>
    </html>

结果

![70 1][]

![70 2][]

[Link 1]: https://www.yiibai.com/spring_mvc/springmvc_listbox.html
[70]: /images/20220518/d0c10e485f48408bb08774bf8b0bb06c.png
[70 1]: /images/20220518/e0bc7db8cdeb4226806cbf8dff305ccd.png
[70 2]: /images/20220518/151883728b7b4532a4b2333498c5ae59.png