SpringMVC入门小程序 -- Myeclipse 9.1下
注：本文项目文件在https://github.com/SpaceyLi/SpringMVC_test
一、下载
首先需要到官网http://repo.spring.io/release/org/springframework/spring/下载spring包(本文使用3.2.10)，此外还需要下载aopalliance.jar包。
环境说明：
IDE：MyEclipse9.1
JDK：1.6.0_45
Tomcat：7.0.42
二、创建工程
创建工程SpringMVC_test(Web Project)，本文的项目路径为E:\MyEclipse\SpringMVC_test，在J2EE Specification Level选项中选择Java EE 6.0。
三、配置
1.项目建好后把事先下载好的spring包解压后打开，将spring-framework-3.2.10.RELEASE\libs中的所有非javadoc和sources包copy到项目的SpringMVC_test/WebRoot/WEB-INF/lib文件夹下，然后刷新项目。就可以在MyEclipse的Package Explorer窗口中看到这些库文件。
2.修改WebRoot/WEB-INF/web.xml的内容为：
<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <display-name>SpringMVC_test</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- spring --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:config/applicationContext.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- springMVC --> <servlet> <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/springMVC.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> <!-- character encoding filter --> <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> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
3.在src下添加文件夹config,分别创建springMVC.xml和applicationContext.xml
springMVC.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" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"> <!-- scan component --> <context:component-scan base-package="com.spacey.demo"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" /> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service" /> </context:component-scan> <!-- view resolver --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property> <property name="prefix" value="/WEB-INF/jsp/"></property> <property name="suffix" value=".jsp"></property> </bean> <!-- annotation method1 --> <mvc:annotation-driven /> <!-- annotation method2 --> <!-- <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"></bean> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" lazy-init="false"></bean> --> <!-- file upload --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding" value="utf-8" /> <property name="maxUploadSize" value="10485760000" /> <property name="maxInMemorySize" value="40960" /> </bean> <!-- static file access1 --> <mvc:default-servlet-handler/> <!-- static file access2 --> <!--<mvc:resources location="/img/" mapping="/img/**"/> <mvc:resources location="/js/" mapping="/js/**"/> --> </beans>
applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:task="http://www.springframework.org/schema/task" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:ehcache="http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring" xmlns:flex="http://www.springframework.org/schema/flex" xmlns:amq="http://activemq.apache.org/schema/core" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring/ehcache-spring-1.2.xsd http://www.springframework.org/schema/flex http://www.springframework.org/schema/flex/spring-flex-1.5.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"> <!-- auto scan component --> <!-- 对于用annotation方式的事务注解和bean配置，spring的配置文件 与springMVC的配置文件对包的重复扫描装配会照成事务失效 因为spring的context是父子容器，所以会产生冲突，由ServletContextListener产生的是父容器，springMVC产生的是子容器， 子容器Controller进行扫描装配时装配了@Service注解的实例，而该实例理应由父容器进行初始化以保证事务的增强处理， 所以此时得到的将是原样的Service（没有经过事务加强处理，故而没有事务处理能力。） 在主容器中（applicationContext.xml），将Controller的注解排除掉 --> <context:component-scan base-package="com.spacey.demo"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" /> </context:component-scan> </beans>
4.在package com.spacey.demo下创建类HelloWorldController.java：
package com.spacey.demo;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("hello/")
public class HelloWorldController{
@RequestMapping("toHelloJsp")
public String toHelloJsp(ModelMap modelMap) throws Exception{
System.out.println("----------------------here---------------------------");
modelMap.put("message", "==test==");
return "hello";
}
}
5.在WebRoot/WEB-INF/下创建文件夹jsp，并在其中添加hello.jsp
<%@ page language="java" import="java.util.*" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>hello world</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
hello world!${message }<br>
</body>
</html>
6.运行，部署即可访问http://localhost:8080/hello/toHelloJsp。