适配器的主要功能是去找控制器。Action实现了什么接口

本文案例实现的功能是：在页面上输入中文名字，然后在另外一个网页上显示出来。

案例结构：

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" alt="" />

1.EmpAction代码如下，这个是控制器：

package com.guigu.shen.Action3;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;

import org.springframework.web.servlet.mvc.Controller;

/*

 *

 * 控制器是实现Controller接口的类

 *

 *

 */

public class EmpAction implements Controller{

    @Override

    public ModelAndView handleRequest(HttpServletRequest request,

            HttpServletResponse response) throws Exception {

        ModelAndView modelAndView=new ModelAndView();

        //设置编码方式：

        request.setCharacterEncoding("utf-8");

        //获取员工的姓名

        String username=request.getParameter("username");

        System.out.println("员工的姓名"+username);

        //将员工的姓名封装到ModelAndView中去。

        modelAndView.addObject("message", username);

        //将正式路径名封装到ModelAndView中。

          modelAndView.setViewName("/jsp/success.jsp");

        return modelAndView;

    }

}

2.SpirngMvc_003.xml文件代码如下：

<?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） -->

<bean id="userActionID" class="com.guigu.shen.Action3.EmpAction"></bean>

 <!-- 映射器 

 与之前的BeanNameUrlHanderMapping不同这次采用的是SimpleUrlHandlerMapping映射器。

 -->

<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">

  <property name="mappings">

    <props>

    <!--

             依次写四个请求。并把之前的   <bean id="userActionID" class="com.guigu.shen.Action2.UserAction"></bean> 的id写入

     -->

      <prop key="/showuser.action">userActionID</prop>

    </props>

 </property>

</bean>  

 <!-- 如果Action汇总书写的是视图逻辑名称，那么视图解析器就必须配置（解释一下什么是视图逻辑名称：就是类似Struts2中的，"success"）

               如果Action中配置的是视图真实名称，那么视图解析器就可选配置(解释一下什么是视图真实名称，就是"/jsp/success.jsp")

 -->

 <bean  class="org.springframework.web.servlet.view.InternalResourceViewResolver">

 </bean>

</beans>

3.springmvc.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: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/Action3/springmvc_003.xml"/>

</beans>

4.web.xml

<?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>

  <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:springmvc.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>

6.index.xml

<%@ 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="styles.css">

    -->

  </head>

  <body>

  <form action="${pageContext.request.contextPath}/showuser.action" method="post">

  用户的姓名：<input type="text" name="username" >

          <input type="submit" value="提交">

  </form>

  </body>

</html>

运行结果：正确

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