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Spring MVC入门实例

1.web.xml配置

<?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_3_0.xsd"
	id="WebApp_ID" version="3.0">
	<display-name>myweb</display-name>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
	</welcome-file-list>
 
	<!-- 载入全部的配置文件 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath*:config/spring-*.xml</param-value>
	</context-param>
 
	<!-- 配置Spring监听 -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
 
	<!-- 配置字符集 -->
	<filter>
		<filter-name>encodingFilter</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>
		<init-param>
			<param-name>forceEncoding</param-name>
			<param-value>true</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>encodingFilter</filter-name>
		<url-pattern>/</url-pattern>
	</filter-mapping>
 
 
	<!-- 配置SpringMVC -->
	<servlet>
		<description>myweb</description>
		<display-name>myweb</display-name>
		<servlet-name>springMVC</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath*:config/spring-mvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
 
	<servlet-mapping>
		<servlet-name>springMVC</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
 
</web-app>

2.spring-mvc配置

<?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:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans.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.xsd">
 
	<!-- 开启Spring MVC注解 -->
	<mvc:annotation-driven />
	<!-- 处理静态资源 -->
	<mvc:resources location="/resources" mapping="/resources/**" />
 
	<!-- 打开Spring的Annotation支持 -->
	<context:annotation-config />
 
	<!-- 注解扫描包 -->
	<context:component-scan base-package="com.myweb.controller" />
 
 
	<!-- ViewResolver -->
	<!-- 默认的视图解析器 在上边的解析错误时使用 (默认使用html)- -->
	<bean id="defaultViewResolver"
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>
 
 
</beans>

3.HelloController类

package com.myweb.controller;
 
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
 
@Controller
public class HelloController {
 
    @RequestMapping(value = "/hello", method = RequestMethod.GET)
    public ModelAndView printWelcome() {
        ModelAndView mv = new ModelAndView();
        mv.setViewName("welcome");
        mv.addObject("message", "you are welcome");
        return mv;
    }
 
}

4.welcome.jsp

<%@ page language="java" contentType="text/html; UTF-8"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; UTF-8">
<title>Insert title here</title>
</head>
<body>
${message}
</body>
</html>

5.eclipse的文件夹结构图

6.訪问http://localhost:8080/myweb/hello。输出：

you are welcome

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原文地址：https://www.cnblogs.com/cynchanpin/p/6850575.html