spring和mybatis的整合配置
spring中引入properties文件至少有以下两种方式:
a.
<!-- 引入db.properties --> <context:property-placeholder location="classpath:db.properties" />
b.
1 <!-- 引入properties文件 --> 2 <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> 3 <property name="location" value="classpath:jdbc.properties" /> 4 </bean>
我觉得还是第一种比较更简单一些。
2、采用接口org.apache.ibatis.session.SqlSession的实现类org.mybatis.spring.SqlSessionTemplate。
mybatis中, sessionFactory可由SqlSessionFactoryBuilder.来创建。MyBatis-Spring 中,使用了SqlSessionFactoryBean来替代。SqlSessionFactoryBean有一个必须属性dataSource,另外其还有一个通用属性configLocation(用来指定mybatis的xml配置文件路径)。
spring-mybatis.xml
<?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-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 自动扫描 --> <context:component-scan base-package="com.hua.saf" /> <!-- 引入properties文件 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:jdbc.properties" /> </bean> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${driver}" /> <property name="url" value="${url}" /> <property name="username" value="${username}" /> <property name="password" value="${password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="${initialSize}" /> <!-- 连接池最大数量 --> <property name="maxActive" value="${maxActive}" /> <!-- 连接池最大空闲 --> <property name="maxIdle" value="${maxIdle}" /> <!-- 连接池最小空闲 --> <property name="minIdle" value="${minIdle}" /> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="${maxWait}" /> </bean> <!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="configLocation" value="classpath:sqlMapConfig.xml"/> <!-- 自动扫描mapping.xml文件,**表示迭代查找,也可在sqlMapConfig.xml中单独指定xml文件--> <property name="mapperLocations" value="classpath:com/hua/saf/**/*.xml" /> </bean> <!-- mybatis spring sqlSessionTemplate,使用时直接让spring注入即可 --> <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg index="0" ref="sqlSessionFactory"></constructor-arg> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean>
<!-- 开启申明事务-->
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>
sqlMapConfig.xml
<?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> <typeAliases> <typeAlias type="com.hua.saf.pojo.User" alias="User" /> </typeAliases> </configuration>