1，处理器的第二种配置方式

<!--配置handler -->
    <bean id="/FirstController" class="com.songyan.controller.FirstController"></bean>
    <bean id="logoon" class="com.songyan.controller.LoginHandler">
    
    </bean>
    <!--映射器 -->
    <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping" />
    <!--映射器2 -->
    <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
    <property name="mappings">
    <props>
        <prop key="login1">logoon</prop>
    </props>
    </property>
    </bean>
    <!--适配器 -->
    <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter" />
    <!--适配器2 -->    
    <bean class="org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter" />
    <!--解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
        <property name="prefix" value="WEB-INF/jsp/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

2,LoginHandler

package com.songyan.controller; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.HttpRequestHandler; public class LoginHandler implements HttpRequestHandler { public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String username=request.getParameter("username"); String password=request.getParameter("password"); request.setAttribute("username", username); request.setAttribute("password", password); request.getRequestDispatcher("login.jsp").forward(request, response); } }

3，login.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 'login.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="login1" method="post"> 用户名：<input type="text" name="username" >${username }<br><br> 密码：<input type="text" name="password">${password}<br><br>
        <input type="submit" value="login">
    </form>
  </body>
</html>