Spring4 MVC Hello Wrold

项目目录结构图：

  

1.maven pom.xml：

<!-- spring版本号 -->
	<properties>
		<spring.version>4.1.1.RELEASE</spring.version>
	</properties>
	<dependencies>
		<!-- junit -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.4</version>
			<scope>test</scope>
		</dependency>
		<!-- spring -->
		<dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
		<!-- jstl -->
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
		<dependency>
			<groupId>taglibs</groupId>
			<artifactId>standard</artifactId>
			<version>1.1.2</version>
		</dependency>
		<!-- 日志包 -->
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>1.7.2</version>
		</dependency>
	</dependencies>

 2.配置web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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_2_5.xsd">
	<display-name>Archetype Created Web Application</display-name>
	<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>
	<listener>
	<listener-class>
        org.springframework.web.context.ContextLoaderListener
        </listener-class>
	</listener>
	<servlet>
		<servlet-name>springmvc</servlet-name>
                <servlet-class>
                org.springframework.web.servlet.DispatcherServlet
                </servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>WEB-INF/springmvc-servlet.xml</param-value>
	</context-param>
	<servlet-mapping>
		<servlet-name>springmvc</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app>
 

 3.配置日志：

log4j.rootLogger=INFO,A1
log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%d %5p [%t] (%F:%L) - %m%n

4.在WEB-INFO下创建springmvc-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:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
	<!-- 扫描web包，应用Spring的注解 -->
	<context:component-scan base-package="com.spring4.controller" />
	<!-- 添加注解驱动 -->
	<mvc:annotation-driven />
	<!-- 配置视图解析器，将ModelAndView及字符串解析为具体的页面 -->
	<bean	
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
	p:viewClass="org.springframework.web.servlet.view.JstlView"
	    p:prefix="/views/"
		p:suffix=".jsp" />
</beans>

 5.创建com.spring4.controller包并创建HelloController类：

package com.spring4.controller;
import java.util.HashMap;
import java.util.Map;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class HelloController {
	@RequestMapping("/web")
	public ModelAndView hello(@RequestParam(value="name", defaultValue="World") String name) {
		System.out.println("Hello " + name);
		Map<String, Object> map = new HashMap<String, Object>();
		map.put("userName", name);
		return new ModelAndView("/hello",map);
	}
}

 6.在webapp下创建views文件并创建hello.jsp文件：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!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; charset=UTF-8">
<title>Hello spring4MVC</title>
</head>
<body>
  <h1>你好，${userName }</h1>
</body>
</html>

 7.启动tomcat服务器在浏览器地址输入：http://localhost:9090/spring4/web/?name=spring4