spring 3.0 mvc 基于注解 笔记2

spring3 的基于注释的mvc可以简化我们的xml配置
1.配置web.xml

	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">
  
    index.jsp
  
    
  	mvc
  	org.springframework.web.servlet.DispatcherServlet
  	
  		contextConfigLocation
  		/WEB-INF/classes/spring/*.xml
  	
  	1
  刘冬明([email protected]);
  
  	mvc
  	*.do
  

2.编写Spring配置文件config.xml

	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	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.xsd
		http://www.springframework.org/schema/mvc 
		http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd 
		http://www.springframework.org/schema/context   
		http://www.springframework.org/schema/context/spring-context-3.0.xsd">
	
	
		
		
	

配置定义文件和之前略有不同

定义了启动时需要检查的注释信息的包路径
3.包含注释的Controller类

package mvc;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
//定义该类是作为Controller进行处理
@Controller
public class HelloWorld {
	//定义访问路径hello.do 请求方法类型
	@RequestMapping(value="hello",method=RequestMethod.GET)
	public String helloWorld(){
		System.out.println("HelloWorld!");
		return "hello";
	}
}

4.简单的显示页面 /WEB-INF/page/hello.jsp

  
    

    

	
	
	    
	
	
	

  

  
    HelloWorld

  

现在我们就可以访问以下hello.do