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SpringMVC03controller中定义多个方法

2024-08-24 06:01:14   221人阅读

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<%@ 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">
    <!--
    <link rel="stylesheet" type="text/css" href="http://www.mamicode.com/styles.css">
    -->
  </head>
  
  <body>

     <%-- 这里的参数要和 配置文件中ParameterMethodNameResolver的paramName属性的value值相对应--%>
    
    <a href="hello?action=add">新增</a>
    <a href="hello?action=update">修改</a>
    <a href="hello?action=del">删除</a>
    <a href="hello?action=find">查询</a>
  </body>
</html>
webroot下面的index.jsp页面

 

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

<!-- ParameterMethodNameResolver：会根据前台请求的参数名称 对应到指定的controller中  方法名称
  前台的请求中 必须携带参数  action=xxx    如果需要自己定义  则需要更改paramName的value值
  -->
  <bean id="parameter"  class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">
    <property name="paramName"  value="action"/><!-- 可以省略 因为是默认值 -->
  </bean>

    <!-- 处理器 -->
    <bean name="/hello" class="cn.bdqn.controller.MyController">
     <property name="methodNameResolver" ref="parameter"/>
    </bean>

    <!-- 配置视图解析器 -->
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
</beans>
springmvc-servlet.xml文件的配置

 

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public class MyController extends MultiActionController {

    // 新增
    public ModelAndView add(HttpServletRequest request,
            HttpServletResponse response) {
        return new ModelAndView("success", "result", "新增成功界面");
    }

    // 修改
    public ModelAndView update(HttpServletRequest request,
            HttpServletResponse response) {
        return new ModelAndView("success", "result", "修改成功界面");
    }

    // 删除
    public ModelAndView del(HttpServletRequest request,
            HttpServletResponse response) {
        return new ModelAndView("success", "result", "删除成功界面");
    }

    // 查看
    public ModelAndView find(HttpServletRequest request,
            HttpServletResponse response) {
        return new ModelAndView("success", "result", "查看成功界面");
    }

}
对应的controller

 

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<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  
  
  <!--配置springmvc的核心控制器  -->
  <servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--  配置spring配置文件的位置 以及名称 -->
    <init-param>
     <param-name>contextConfigLocation</param-name>
     <param-value>classpath:/springmvc-servlet.xml</param-value>
    </init-param>
  </servlet>
  
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  
</web-app>
web.xm文件中的配置

 

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  <body>
    ${result}
  </body>
success.jsp页面内容

 

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SpringMVC03controller中定义多个方法


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