一、工作原理
首先浏览器向服务端的前端控制器（DispatcherServlet）发送一个http请求；
前端控制器查询一个或多个HandlerMapping；
前端控制器将处理请求传向查询到的HandlerMapping所对应的Controller；
Controller调用模型处理业务；
返回ModelAndView；
前端控制器查询一个或多个ViewResoler视图解析器，找到ModelAndView指定的视图
视图负责将结果显示到客户端。
实例：
导入SpringMVC相关jar包
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">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-servlet.xml</param-value><!-- 上下文配置 -->
</context-param>
<!-- <listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener> -->
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
spring-servlet.xml
<mvc:annotation-driven/><!-- 加载注解 -->
<context:component-scan base-package="com.demo.controller"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"><!-- 视图解析 -->
<property name="prefix" value="/WEB-INF/view/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
控制器TranslationController.java
package com.demo.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
@RequestMapping(value="/trans",method=RequestMethod.GET)
public class TranslationController {
@RequestMapping(value="index",method=RequestMethod.GET)
public String test(ModelMap modelMap) throws Exception{
modelMap.put("solr", "123");
return "/a";
}
}
页面视图a.jsp
<?xml version="1.0" encoding="utf-8" ?>
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Insert title here</title>
</head>
<body>
success<span>${solr}</span>
</body>
</html>