修改配置文件
代码语言：javascript复制<?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 中使用@controller标识此类是一个控制器，使用@requestMapping指定Handler方法所对应的url -->
<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></pre>
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;
}
}</pre> 
