springmvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
">
<!-- 视图解析器
解析jsp,默认使用jstl
-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"></bean>
<!-- 注解的Handler配置
可以单个配置:<bean class="com.springmvc.controller.ItemController3"></bean>
但建议用组件扫描
-->
<context:component-scan base-package="com.springmvc.controller"></context:component-scan>
<!-- 注解映射器 -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean>
<!-- 注解适配器 -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean>
<!-- 使用 <mvc:annotation-driven>可以不用配置上面两个注解bean
而且 <mvc:annotation-driven>默认加载了很多的参数绑定方法
-->
<!-- <mvc:annotation-driven></mvc:annotation-driven> -->
</bean>
ItemController.class
package com.springmvc.controller;
import java.util.ArrayList;
import java.util.List;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.springmvc.entity.Items;
//注解开发handler
@Controller
public class ItemController3 {
/*
* @RequestMapping实现对queryItems方法和url进行映射,一个方法对应一个url
* 一般建议将url和方法写成一样,但不强制
*/
@RequestMapping("/queryItems")
public ModelAndView queryItems() throws Exception{
List<Items> items = new ArrayList<Items>();
//向list添加数据
Items item = new Items();
item.setName("联想电脑");
item.setPrice(1200);;
item.setDetail("电脑");
items.add(item);
Items item1 = new Items();
item1.setName("苹果手机");
item1.setPrice(1300);;
item1.setDetail("手机");
items.add(item1);
//返回ModelAndview
ModelAndView modelAndView = new ModelAndView();
//相当与request中的setAttribute,在jsp页面用itemList取值
modelAndView.addObject("items",items);
//指定视图
modelAndView.setViewName("/WEB-INF/jsp/items/itemsList.jsp");
return modelAndView;
}
/*
* 注解可以在一个类中写多个方法,而不像非注解的方法,在一个类中只能写一个方法
*/
}