Spring4 MVC HelloWord实例

一、创建Web项目

　　我用的eclipse，创建步骤：file=>New=>Other=>Web=>Dynamic Web project，按照操作创建一个完整的Web项目，下载对应的jar文件，复制到 lib文件夹下。

　　

二、创建配置文件进行配置

1、新建文件 ：

2、打开 web.xml文件进行配置

<?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>我的MVC项目</display-name>
  <!-- 配置servlet -->
  <servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <!-- 
          加载web.xml文件 
          contextConfigLocation为固定格式    
          classpath:springmvc.xml 为实际存放位置
       -->
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <!-- 表示servlet容器启动的顺序，1表示高优先级 -->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <!-- 配置 servlet和URL的映射路径-->
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

3、配置 springmvc.xml，内容如下

<?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:mvc="http://www.springframework.org/schema/mvc"
        xmlns:context="http://www.springframework.org/schema/context"
        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-3.2.xsd 
            http://www.springframework.org/schema/mvc 
            http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd 
            http://www.springframework.org/schema/context 
            http://www.springframework.org/schema/context/spring-context-3.2.xsd 
            http://www.springframework.org/schema/aop 
            http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 
            http://www.springframework.org/schema/tx 
            http://www.springframework.org/schema/tx/spring-tx-3.2.xsd"> 
             
            <!-- 配置扫描注解 -->
            <context:component-scan base-package="com.controller"/> 
               <context:annotation-config/> 
               
            <!-- 
                配置访问路径  
                          地 址 栏   ：http://localhost:8080/test/userlist
                    等于    : http://localhost:8080/test/WEB-INF/jsp/index.jsp                
              --> 
            <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
                <property name="prefix" value="/WEB-INF/jsp/"></property>
                <property name="suffix" value=".jsp"></property>        
            </bean>
        </beans>

4、Controller代码

@Controller
public class UserManageController{
 
    @RequestMapping(value="/userlist",method=RequestMethod.GET)
    public ModelAndView handleRequest(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception {
        // TODO Auto-generated method stub
        ModelAndView mView=new ModelAndView();
        mView.addObject("name", "王建");
        mView.setViewName("list");
        return mView;
    }

}

5、配置关系图 

 6、运行测试

运行以后再地址栏后面加上 /list,，访问成功。

参考文档 http://www.yiibai.com/spring_mvc/spring-mvc-tutorial-for-beginners.html