Spring+SpringMVC+mybatis整合以及注解的使用(三)

1.包结构:

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" alt="" />

 2.spring配置:基本的DAO配置以及扫描Mapper(扫描出来的Mapper为首字母小写)

 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
     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"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-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/aop http://www.springframework.org/schema/aop/spring-aop-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/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

     <context:property-placeholder location="classpath:db.properties"/>

     <!-- 数据库连接池 -->
     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
         destroy-method="close">
         <property name="driverClassName" value="${jdbc.driver}" />
         <property name="url" value="${jdbc.url}" />
         <property name="username" value="${jdbc.username}" />
         <property name="password" value="${jdbc.password}" />
         <property name="maxActive" value="10" />
         <property name="maxIdle" value="5" />
     </bean>

     <!-- Mybatis的工厂 -->
     <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
         <property name="dataSource" ref="dataSource"/>
         <!-- 核心配置文件的位置 -->
         <property name="configLocation" value="classpath:sqlMapConfig.xml"/>
     </bean>

     <!-- Mapper动态代理开发   扫描 -->
     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         <!-- 基本包 -->
         <property name="basePackage" value="cn.qlq.springmvc.mapper"/>
     </bean>

     <!-- 注解事务 -->
     <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
         <property name="dataSource" ref="dataSource"/>
     </bean>

     <!-- 开启注解 -->
     <tx:annotation-driven transaction-manager="transactionManager"/>

 </beans>

3.mybatis配置（主要就一个定义别名）

 <?xml version="1.0" encoding="UTF-8" ?>
 <!DOCTYPE configuration
 PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
 "http://mybatis.org/dtd/mybatis-3-config.dtd">
 <configuration>
     <!-- 设置别名 -->
     <typeAliases>
         <!-- 2. 指定扫描包，会把包内所有的类都设置别名，别名的名称就是类名，大小写不敏感 -->
         <package name="cn.qlq.springmvc.pojo" />
     </typeAliases>

 </configuration>

4.springMVC配置(主要就是配置扫描Service和Controller)

 <?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:p="http://www.springframework.org/schema/p"
     xmlns:context="http://www.springframework.org/schema/context"
     xmlns:mvc="http://www.springframework.org/schema/mvc"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
         http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">

         <!-- 扫描@Controler  @Service   -->
         <context:component-scan base-package="cn.qlq"/>

         <!-- 处理器映射器 -->
 <!--         <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/> -->
         <!-- 处理器适配器 -->
 <!--         <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/> -->
         <!-- 注解驱动 -->
         <mvc:annotation-driven/>

         <!-- 视图解释器 -->
         <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
             <property name="prefix" value="/WEB-INF/jsp/"/>
             <property name="suffix" value=".jsp"/>
         </bean>

    </beans>

5.Service使用注解注入Mapper(主要就是自己添加service注释与内部注入mapper)

   5.1 接口(接口中不做任何声明)

 package cn.qlq.springmvc.service;
 import java.util.List;

 import cn.qlq.springmvc.pojo.Items;
 public interface ItemService {
     public List<Items> findAllItems();
 }

    5.2.Service实现类(自己添加service注释与内部注入mapper)

 package cn.qlq.springmvc.service;

 import java.util.List;

 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;

 import cn.qlq.springmvc.mapper.ItemsMapper;
 import cn.qlq.springmvc.pojo.Items;

 @Service
 public class ItemsServiceImpl implements ItemService {

     @Autowired
     private ItemsMapper itemsMapper;
     @Override
     public List<Items> findAllItems() {

         List<Items> selectByExampleWithBLOBs = itemsMapper.selectByExampleWithBLOBs(null);
         return selectByExampleWithBLOBs;
     }

 }

6. 控制层(声明自己是Controller层与自动注入Service)

package cn.qlq.springmvc.controller;

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

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

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.HttpRequestHandler;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import cn.qlq.springmvc.pojo.Items;
import cn.qlq.springmvc.service.ItemService;

/**
 * 商品管理
 *
 * @author lx
 *
 */
@Controller
public class ItemController {
    @Autowired
    private ItemService itemService;
    //入门程序 第一   包类 + 类包 + 方法名
    @RequestMapping(value = "/item/itemlist.action")
    public ModelAndView itemList(){
        //从Mysql中查询
        List<Items> list = itemService.findAllItems();

        ModelAndView mav = new ModelAndView();
        //数据
        mav.addObject("itemList", list);
        mav.setViewName("itemList");
        return mav;
    }

}

总结:Service层注入时只用在实现类上声明service。注入时候注入接口名字。可以用自动装配@Autowired,也可以用

@Resource(name="baseDao")
private BaseDao baseDao; 

这种格式注入对象，name就是扫描后的名字。