<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" 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_3_0.xsd"><display-name></display-name>    <!-- 配置org.springframework.web.filer.HiddenHttpMethodFilter:可以把POST请求转为DELETE或POST请求--><filter><filter-name>HiddenHttpMethodFilter</filter-name><filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class></filter><filter-mapping><filter-name>HiddenHttpMethodFilter</filter-name><!-- 过滤所有请求 --><url-pattern>/*</url-pattern></filter-mapping><!-- 配置DispatcherServlet --><servlet><servlet-name>springDispatcherServlet</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><!-- 配置 DispatcherServlet的一个初始化参数:配置SpringMvc 配置文件的位置和名称--><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:springmvc.xml</param-value></init-param><!-- 也可以不通过contextConfigLocation 来配置SpringMvc的配置文件，而使用默认的默认的配置文件为：/WEB-INF/<servlet-name>-servlet.xml/WEB-INF/springDispatcherServlet-servlet.xml--><!-- 设置启动 --><load-on-startup>1</load-on-startup></servlet><servlet-mapping><!-- 请求处理 --><servlet-name>springDispatcherServlet</servlet-name><!-- /:应答所有请求 --><url-pattern>/</url-pattern></servlet-mapping><welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list>
</web-app>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:aop="http://www.springframework.org/schema/aop"xmlns:mvc="http://www.springframework.org/schema/mvc"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"xsi:schemaLocation="
 http://www.springframework.org/schema/beans
 http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
     http://www.springframework.org/schema/mvc
 http://www.springframework.org/schema/tx/spring-mvc-4.0.xsd
 http://www.springframework.org/schema/context
 http://www.springframework.org/schema/context/spring-context-4.0.xsd
 http://www.springframework.org/schema/aop
 http://www.springframework.org/schema/aop/spring-aop-4.0.xsd"><!-- 配置自定义扫描包 --><context:component-scan base-package="como.springmvc.handlers"></context:component-scan><!-- 配置视图解析器：如何把handler方法返回值解析为实际的物理视图 --><bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"><!-- 前缀 --><property name="prefix" value="/WEB-INF/views/"></property><!-- 后缀 --><property name="suffix" value=".jsp"></property></bean></beans>

package com.springmvc.entity;public class User {private String username;private String password;private String email;private int age;private Address address;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 String getEmail() {return email;}public void setEmail(String email) {this.email = email;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public Address getAddress() {return address;}public void setAddress(Address address) {this.address = address;}@Overridepublic String toString() {return "User [username=" + username + ", password="+ password + ", email=" + email + ", age=" + age+ ", address=" + address + "]";}}

package com.springmvc.entity;public class Address {private String province;private String city;public String getProvince() {return province;}public void setProvince(String province) {this.province = province;}public String getCity() {return city;}public void setCity(String city) {this.city = city;}@Overridepublic String toString() {return "Address [province=" + province + ", city=" + city + "]";}}

package como.springmvc.handlers;

import java.io.IOException;import java.io.Writer;

import javax.servlet.http.*;

import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;

import com.springmvc.entity.User;

@Controller@RequestMapping("/Pojo")public class Pojo {

    /*     * SpringMVC会按请求参数名和POJO属性名进行自动匹配     * 自动为该对象填充属性，支持级联属性     * 如：dept.deptId、dept.address.tel

     * */

    @RequestMapping("/testPojo")            public String testPojo(User user){                    System.out.println("testPojo"+user);

                return "success";

            }

    /*     * 可以使用Servlet原生的API作为目标方法的参数，具体支持一下类型     * HttpServletRequest     * HttpServletResponse     * HttpSession     * java.security.Principal     * Locale InputStream     * OutputStream     * Reader     * Writer

     * */

    @RequestMapping("/testServletAPI")            public void testServletAPI(HttpServletRequest request,                    HttpServletResponse response,Writer out) throws IOException{                        System.out.println("testServletAPI,"+request+","+response);                        out.write("hello");                //return "success";

            }}

<%@ 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 'pojo.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="Pojo/testPojo"  method="post"><br>          username:<input type="text"  name="username" /><br>          password:<input type="password"  name="password" /><br>          email:<input type="text"  name="email" /><br>          age:<input type="text"  name="age" /><br>          <!-- 级联属性 ：属性的属性 -->          city:<input type="text"  name="address.city" /><br>          province:<input type="text"  name="address.province" /><br>          <input type="submit" value="Value" />

  </form>

    <a href="Pojo/testServletAPI">Test ServletAPI</a>  </body></html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"  isErrorPage="true"%>
<%
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 'success.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>success page. <br></body>
</html>