Spring4MVC

废话不多说，直接捞干货：

1、环境：

JDK1.6.0_43

Tomcat6.0.32

Spring4.0.0.Release

Eclipse3.7.2

2、下载Spring4：

http://repo.springsource.org/libs-release-local/org/springframework/spring/4.0.0.RELEASE/spring-framework-4.0.0.RELEASE-dist.zip

3、由于spring3之后jar包分离，还需要下载相关的jar

4、eclipse中新建一个动态web项目，导入spring4的所有jar包（也可以逐步导入，用到哪个导入哪个）。

5、修改web.xml，引入spring4：

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2eehttp://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

<servlet>
  <servlet-name>dispatcher</servlet-name>
  <servlet-class>
   org.springframework.web.servlet.DispatcherServlet
  </servlet-class>
  <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

<servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.css</url-pattern>
    </servlet-mapping>

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value> /WEB-INF/dispatcher-servlet.xml,/WEB-INF/application-context.xml </param-value>
</context-param>

<listener>
  <listener-class>
   org.springframework.web.context.ContextLoaderListener
  </listener-class>
</listener>
</web-app>

6、编写spring4配置文件dispachter-servlet.xml,注释已经够详细了，不用再解释了吧：

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
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-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd
      http://www.springframework.org/schema/mvc
      http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
  
<mvc:annotation-driven/>
<context:component-scan base-package="com" />

<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" />




<bean  class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  <property name="prefix">   <value>/WEB-INF/views/</value> </property>
  <property name="suffix">   <value>.jsp</value>  </property>
</bean>

<bean id="aopHandler2" class="com.mvc.intec.AopDemo"></bean>
    <aop:config>
         <aop:aspect id="hello" ref="aopHandler2">
         <aop:pointcut id="poicut" expression="execution(* com.wh.HelloWorldController.hello(..))" />
         
        <aop:before method="beforeTest" pointcut-ref="poicut"/>
        <aop:before method="afterTest" pointcut-ref="poicut"/>
         </aop:aspect>
     </aop:config>


    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize" value="5000000"></property>
    </bean>
</beans>

7、数据源配置文件（mysql 5.5）application-context.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/beanshttp://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

<property name="maxIdle" value="5" />
  <property name="maxActive" value="40" />
  
  <property name="defaultAutoCommit" value="true" />
  <property name="timeBetweenEvictionRunsMillis" value="3600000" />
  <property name="minEvictableIdleTimeMillis" value="3600000" />
</bean>

<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
  <property name="dataSource">   <ref bean="dataSource" />  </property>
</bean>
   
<bean id="userDao" class="com.mvc.dao.UserDao">
   </bean>

<bean id="userService" class="com.mvc.service.UserService">
  
</bean>
  </beans>

8、创建一个Controller：com.wh.HelloWorldController

package com.wh;

import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import com.mvc.rest.User;
import com.mvc.service.UserService;

/**
* spring4MVC测试类,主要测试各种注解的用法 tomcat:6.0.30以上(tomcat6.0.32) JDK :jdk6
* update10以上(jdk6 update43s) spring:spring4.0.4Release
*
* @ClassName: HelloWorldController
* @Description:
* @author wh

* @date 2014-7-16 上午10:40:39
* @Controller:将当前类注册成一个controller
*/
@Controller
public class HelloWorldController {

//autowired是自动装载,通过这个注解可以直接获取配置的bean,而不同通过set方法来获取
@Autowired
private UserService userService;

private static final Logger logger = LoggerFactory
.getLogger(HelloWorldController.class);

public HelloWorldController() {
System.out.println("初始化....");
}

/**
* @RequestMapping("/hello/{name "):注册一个REST风格的url访问地址，hello是路径，name是参数，称为模板
* @PathVariable String name：将mapping中的参数绑定到name中
* @Title: hello
* @Description: TODO
* @param name
* @param model
* @return String 返回类型
* @throws
*/

@RequestMapping("/hello/{name}")
public String hello(@PathVariable String name, Model model) {
model.addAttribute("name", name);
return "hello";
}

}

9、WEB-INF/views目录下创建hello.jsp:

<%@ page language="java" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath =
request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style>
body{ height:100%; overflow:auto; }
</style>
</head>
<html>

<head>
    <base href="<%=basePath%>">
    <title>My JSP 'hello.jsp' starting page</title>
  <meta http-equiv="pragma" content="no-cache">
  <meta http-equiv="cache-control" content="no-cache">
</head>

<body>
<span style=" font-weight:bold;">你好${name}，这是我的第一个springMVC页面！ </span>
</body>

</html>

10、相关jar包说明，下载spring老版本的依赖库，大部分jar都能找到：

EL表达式相关：jstl-1.2.jar,standard-1.0.2.jar

Spring相关：log4j-1.2.16.jar,commons-logging-1.1.jar

数据库连接：mysql-connector-java-5.1.0-bin.jar

log4j日志相关：slf4j-api-1.6.4.jar，slf4j-log4j12-1.6.4.jar

附件上传相关：commons-fileupload-1.3.1.jar，commons-io-2.2.jar

FreeMarker相关：freemarker.jar

AOP相关：aopalliance.jar，aspectjrt.jar，aspectjweaver.jar

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