Spring配置mybatis

Spring配置mybatis

<?xml version="1.0" encoding="UTF-8"?>  
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:aop="http://www.springframework.org/schema/aop"  
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:jdbc="http://www.springframework.org/schema/jdbc"  
    xmlns:cache="http://www.springframework.org/schema/cache" 
    xmlns:mybatis="http://mybatis.org/schema/mybatis-spring" 
    xsi:schemaLocation="
    http://www.springframework.org/schema/context  
    http://www.springframework.org/schema/context/spring-context.xsd  
    http://www.springframework.org/schema/beans  
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://mybatis.org/schema/mybatis-spring
    http://mybatis.org/schema/mybatis-spring.xsd"> 

    <!-- 1. 配置自动扫描 -->  
    <context:component-scan base-package="org.seckill" />
    <mybatis:scan base-package="org.seckill.dao" />

    <!-- 2. 数据库连接配置 -->
    <context:property-override location="classpath:druid.properties"/>
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" />
    <bean id="dataSource_c3p0" class="com.mchange.v2.c3p0.ComboPooledDataSource" />
    <bean id="dataSource_dbcp" class="org.apache.commons.dbcp.BasicDataSource" />
    <bean id="dataSource_druid" class="com.alibaba.druid.pool.DruidDataSource" />

    <!-- 3. 配置sqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>

        <!-- 配置mybatis的全局配置文件-->
        <property name="configLocation" value="classpath:mybatis-config.xml" />

        <!-- 使用实体bean的类名作为别名-->
        <property name="typeAliasesPackage" value="org.seckill.entity" />

        <!-- 自动扫描dao下的bean-->
        <property name="mapperLocations" value="classpath:mapper/*.xml" />
    </bean>
</beans>

说明：
1） beans头中添加
xmlns:mybatis=”http://mybatis.org/schema/mybatis-spring”

http://mybatis.org/schema/mybatis-spring
http://mybatis.org/schema/mybatis-spring.xsd

2）设置自动扫描

<context:component-scan base-package="org.seckill" />
<mybatis:scan base-package="org.seckill.dao" />

3）设置数据库连接池

<context:property-override location="classpath:druid.properties"/>
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" />
<bean id="dataSource_c3p0" class="com.mchange.v2.c3p0.ComboPooledDataSource" />
<bean id="dataSource_dbcp" class="org.apache.commons.dbcp.BasicDataSource" />
<bean id="dataSource_druid" class="com.alibaba.druid.pool.DruidDataSource" />

具体db.properties怎么写，请参看《spring配置三大数据库连接池》

4）设置sqlSessionFactory

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>

        <!-- 配置mybatis的全局配置文件-->
        <property name="configLocation" value="classpath:mybatis-config.xml" />

        <!-- 使用实体bean的类名作为别名-->
        <property name="typeAliasesPackage" value="org.seckill.entity" />

        <!-- 自动扫描dao下的bean-->
        <property name="mapperLocations" value="classpath:mapper/*.xml" />
    </bean>