1. 工程目录
首先你需要会创建springMVC的入门工程（SpringMVC入门实例，点击前往），工程的项目目录如下图所示。
2. 源文件编写
2.1 jsp文件编写
index.jsp：
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>用户信息登记</title>
</head>
<body>
<%--
1. 表单中的 name 属性值，要和绑定的模型类属性名一样
2. 例： 这里要绑定 User 类， User 的属性为 private String userName; private int userAge;
3. 表单中的 name 属性要与之相同 name="userName" name="userAge"
--%>
<form action="${pageContext.request.contextPath}/helloUser.form" method="post">
用户名：<input type="text" name="userName"/> <br/>
用户年龄：<input type="text" name="userAge"/> <br/>
<input type="submit" value="提交">
</form>
</body>
</html>helloUser.jsp：
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>用户信息展示</title>
</head>
<body>
<h1>用户姓名：${user.userName}</h1>
<h1>用户年龄：${user.userAge}</h1>
</body>
</html>2.2 xml 文件配置
web.xml： 字符编码过滤器在web.xml，加有注释!
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- post 乱码过滤器 -->
<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>
<!-- post 乱码过滤器指定范围，过滤所有 -->
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- SpringMVC 的前端控制器 -->
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- 拦截了以 ".form" 结尾的URL请求，Web 应用接收到该类请求之后 , 会调用前端控制器-->
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.form</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>dispatcher-servlet.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 前缀 -->
<property name="prefix" value="/WEB-INF/jsp/"></property>
<!-- 后缀 -->
<property name="suffix" value=".jsp"></property>
</bean>
<!-- 扫描配置 -->
<context:component-scan base-package="com.study.springmvc.controller"></context:component-scan>
</beans>applicationContext.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- empty -->
</beans>2.3 java 源文件编写
User.java：
package com.study.springmvc.model;
public class User {
private String userName;
private int userAge;
@Override
public String toString() {
return "User{" +
"userName='" + userName + '\'' +
", userAge=" + userAge +
'}';
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public int getUserAge() {
return userAge;
}
public void setUserAge(int userAge) {
this.userAge = userAge;
}
}HelloUserController.java：
package com.study.springmvc.controller;
import com.study.springmvc.model.User;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
// @Controller 标识是一个控制器
@Controller
public class HelloUserController {
@RequestMapping(value = "/helloUser")
public String handleRequest(Model model, User user) throws Exception {
// 将接受到的数据传过去
model.addAttribute("user", user);
System.out.println(user.toString());
return "helloUser";
}
}test.java：
package com.study.springmvc;
public class test {
// empty
}3. 工程测试
3.1 启动工程，如图所示：
3.2 输入数据，注意，用户年龄需要输入整数
3.3 输入数据展示
END。