springmvc系列03 注解开发

1.web.xml 不变

2.springmvc.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:cache="http://www.springframework.org/schema/cache" xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
     http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
     http://www.springframework.org/schema/aop
     http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
     http://www.springframework.org/schema/context
     http://www.springframework.org/schema/context/spring-context-4.0.xsd
     http://www.springframework.org/schema/tx
     http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
     http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-4.0.xsd">

    <!--注解映射器 -->
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
    <!--注解适配器 -->
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>

    <!-- 使用 mvc:annotation-driven代替上边注解映射器和注解适配器配置
    mvc:annotation-driven默认加载很多的参数绑定方法，
    比如json转换解析器就默认加载了，如果使用mvc:annotation-driven不用配置上边的RequestMappingHandlerMapping和RequestMappingHandlerAdapter
    实际开发时使用mvc:annotation-driven
     -->
    <!-- <mvc:annotation-driven></mvc:annotation-driven> -->

    <!-- 视图解析器 (解析jsp，默认使用jstl标签，所以jstl下需要有jstl的包)-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <!-- 配置jsp路径的前缀 -->
            <property name="prefix" value="/WEB-INF/jsp/"/>
            <!-- 配置jsp路径的后缀 -->
            <property name="suffix" value=".jsp"/>
    </bean>

    <!-- 配置Handler -->
    <!-- 对于注解的Handler可以单个配置
    实际开发中建议使用组件扫描
     -->
    <!-- <bean class="cn.itcast.ssm.controller.ItemsController3" /> -->
    <!-- 可以扫描controller、service、...
    这里让扫描controller，指定controller的包
     -->
    <context:component-scan base-package="com.meicai.ssm.controller"></context:component-scan>

</beans>

springmvc.xml

3.Controller

package com.meicai.ssm.controller;

import java.util.List;
import java.util.ArrayList;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

import com.meicai.ssm.po.Items;

/**
 *
 *
 * @author Administrator
 *
 */
@org.springframework.stereotype.Controller
@RequestMapping("/Items")
public class ItemsController3 {

    //@RequestMapping实现对searchItems方法和url的映射，一个方法对应一个url
    @RequestMapping("/searchItems")
    public ModelAndView searchItems() throws Exception {
        // TODO Auto-generated method stub
        List<Items> itemsList=new ArrayList<Items>();
        Items items1=new Items();
        items1.setName("联想笔记本chm3");
        items1.setPrice(6000f);

        items1.setDetail("tinkpadT430");

        Items items2=new Items();
        items2.setName("苹果手机");
        items2.setPrice(5000f);
        items2.setDetail("ipone7");
        itemsList.add(items1);
        itemsList.add(items2);

        ModelAndView mav=new ModelAndView();
        mav.addObject("itemsList", itemsList);
        mav.setViewName("itemsList");
        return mav;
    }

}

controller

4.调试：http://localhost:8080/springmvc04-01/Items/searchItems.action