mybatis整合Spring的核心代码
spring-dao.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:context="http://www.springframework.org/schema/context" 4 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 5 xsi:schemaLocation="http://www.springframework.org/schema/beans 6 http://www.springframework.org/schema/beans/spring-beans-4.2.xsd 7 http://www.springframework.org/schema/context 8 http://www.springframework.org/schema/context/spring-context-4.2.xsd"> 9 <!--配置整合mybatis过程--> 10 <!-- 1:配置数据库相关参数properties的属性:${url} --> 11 <context:property-placeholder location="classpath:jdbc.properties"/> 12 <!--2:数据库连接池--> 13 <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> 14 <!--配置连接池属性--> 15 <property name="driverClass" value="${jdbc.driver}"/> 16 <property name="jdbcUrl" value="${jdbc.url}"/> 17 <property name="user" value="${jdbc.username}"/> 18 <property name="password" value="${jdbc.password}"/> 19 20 <!--c3p0连接池的私有属性--> 21 <property name="maxPoolSize" value="30"/> 22 <property name="minPoolSize" value="10"/> 23 <!--关闭连接后不自动commit--> 24 <property name="autoCommitOnClose" value="false"/> 25 <!--获取连接超时时间--> 26 <property name="checkoutTimeout" value="1000"/> 27 <!--当获取连接失败重试次数--> 28 <property name="acquireRetryAttempts" value="2"/> 29 </bean> 30 31 <!--约定大于配置--> 32 <!--3:配置SqlSessionFactory对象--> 33 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 34 <!--注入数据库连接池--> 35 <property name="dataSource" ref="dataSource"/> 36 <!--配置MyBatis全局配置文件:mybatis-config.xml--> 37 <property name="configLocation" value="classpath:mybatis-config.xml"/> 38 <!--扫描entity包 使用别名 org.seckill.entity.Seckill->Seckill--> 39 <property name="typeAliasesPackage" value="org.seckill.entity"/> 40 <!--扫描sql配置文件:mapper需要的xml文件--> 41 <property name="mapperLocations" value="classpath:mapper/*.xml"/> 42 </bean> 43 <!--4:配置扫描Dao接口包,动态实现Dao接口,注入到spring容器中--> 44 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 45 <!--注入sqlsessionFactory--> 46 <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> 47 <!--给出需要扫描Dao接口包--> 48 <property name="basePackage" value="org.seckill.dao"/> 49 </bean> 50 </beans>