基于注解的spring MVC程序详解编程语言

在上一篇博文的基础上进行修改

修改配置文件

<?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" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    	http://www.springframework.org/schema/beans/spring-beans-4.2.xsd 
    	http://www.springframework.org/schema/context 
    	http://www.springframework.org/schema/context/spring-context-4.2.xsd 
    	"> 
    
 
	<!-- 自动装配bean --> 
   <!-- 自动检测bean --> 
	<context:component-scan 
		base-package="com.hellospringmvc" 
	></context:component-scan> 
 
 
	<!-- 配置处理器映射器 --> 
	<!-- 使用RequestMappingHandlerMapping需要在Handler [email protected]，[email protected] --> 
	<bean 
		class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"> 
	</bean> 
	 
	<!-- 配置处理器适配器 --> 
	<!-- RequestMappingHandlerAdapter，不要求Handler实现任何接口，它需要和RequestMappingHandlerMapping注解映射器配对使用，主要解析Handler方法中的形参 --> 
	<bean 
		class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/> 
	 
	 
	<!-- 配置视图解析器 
		要求将jstl的包加到classpath 
	 --> 
   <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
      <property name="prefix" value="/WEB-INF/" /> 
      <property name="suffix" value=".jsp" /> 
   </bean> 
 
</beans>

修改类

package com.hellospringmvc; 
 
import java.util.ArrayList; 
import java.util.List; 
 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
 
import org.springframework.stereotype.Controller; 
import org.springframework.ui.ModelMap; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod; 
import org.springframework.web.servlet.ModelAndView; 
 
@Controller 
public class HelloController { 
  
	@RequestMapping("/queryItems") 
	public ModelAndView queryItems(){ 
		 
		//商品列表 
		List<Item> itemsList = new ArrayList<Item>(); 
		 
		Item items_1 = new Item(); 
		items_1.setName("联想笔记本"); 
		items_1.setPrice(6000f); 
		items_1.setDetail("ThinkPad T430 联想笔记本电脑！"); 
		 
		Item items_2 = new Item(); 
		items_2.setName("苹果手机"); 
		items_2.setPrice(5000f); 
		items_2.setDetail("iphone6苹果手机！"); 
		 
		itemsList.add(items_1); 
		itemsList.add(items_2); 
		 
		//创建modelAndView准备填充数据、设置视图 
		ModelAndView modelAndView = new ModelAndView(); 
		 
		//填充数据 
		modelAndView.addObject("itemsList", itemsList); 
		//视图 
		modelAndView.setViewName("helloController"); 
		 
		return modelAndView; 
	} 
 
 
}