这篇文章我们要解决的问题的多选框选中，并批量删除。
比如：
给出案例：
案例结构：
第一步编写首页面emp.jsp，代码如下：
<%@ 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 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> </head> <body> <form action="${pageContext.request.contextPath}/user/register.action" method="post"> <table border="2" align="center"> <tr> <th>编号</th> <th>姓名</th> </tr> <tr> <td><input type="checkbox" name="id" value="1" ></td> <td> 哈哈</td> </tr> <tr> <td><input type="checkbox" name="id" value="2" ></td> <td> 呵呵</td> </tr> <tr> <td><input type="checkbox" name="id" value="3" ></td> <td> 爱爱</td> </tr> <tr> <td><input type="checkbox" name="id" value="4" ></td> <td> 小美</td> </tr> <tr> <td><input type="submit" value="删除" ></td> </tr> </table> </form> </body> </html>
第二步：编写web.xml文件
<?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" 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>SpringMvc_10day_self</display-name> <!-- Spring提供了一个Filter专门用来解决Post提交中文的乱码问题 --> <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> <!--这个名字可以随便取得，但是这个名字取了之后，以后在 WEB-INF下面创建SpirngMVC的配置文件是，命名必须以这个开头， 所以这里取名叫做DispatcherServlet，那么之后的xml文件取名必须为DispatcherServlet-servlet.xml（一个字都不能差） --> <servlet-name>DispatcherServlet</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 通知DispatcherServlet去指定目录下找到springmvc.xml配置文件 --> <!-- 注意这里的 <param-name>contextConfigLocation</param-name>一个字母都不能有错 一旦有错就会去WEB-INF下面去找 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>DispatcherServlet</servlet-name> <url-pattern>*.action</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
第三步；编写spring.xml文件
<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd" > <import resource="com/guigu/shen/Action9/springmvc_009.xml"/> </beans>
第四步：编写springmvc_009.xml文件
<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd" > <!-- 控制器(程序员)（必须配置） --> <context:component-scan base-package="com.guigu.shen.Action9"/> <!-- 基于注解的映射器(可选) 这个类和以前的xml方式的类不同，专门是注解用的 --> <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"/> <!-- 基于注解的适配器(可选) 这个类和以前的xml方式的类不同，专门是注解用的 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/> <!-- 视图解析器(可选) 这个类和以前的xml方式的类一样 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> </bean> </beans>
第五步：编写控制器类UserAction.java
package com.guigu.shen.Action9; import java.text.SimpleDateFormat; import java.util.Date; import javax.servlet.http.HttpServletRequest; import org.omg.CORBA.PUBLIC_MEMBER; import org.springframework.beans.propertyeditors.CustomDateEditor; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.ServletRequestDataBinder; import org.springframework.web.bind.annotation.InitBinder; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; /** * * 请求路径可以拆分为：根模块的名字+分模块的名字 就是相当于当访问http://127.0.0.1:8080:项目名/user/register时就会进入到 registerMethod方法。 */ @Controller @RequestMapping(value="/user")//根模块的请求名字 public class UserAction { @RequestMapping(method=RequestMethod.POST,value="/register")//分模块的请求名字 /*用数组的方式去收集提交的参数（搜集复选框选中的数据） */ public String deleteall(Model model,int[] id) { System.out.println("UserAction:deleteall"); //输出被选中的框框 for(int i=0;i<id.length;i++) { System.out.println(id[i]); } model.addAttribute("message", "批量删除成功"); return "/jsp/success.jsp"; } }
测试：正常：
UserAction:deleteall
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