第一种就是作者之前写过的,就是通过编写是实现类然后在实现类里面实现接口的方法,然后在applicationcontex.xml文件中注册创建一个该实现类的bean对象,然后在该对象中注入SQLSession的以来即可
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
">
<!-- 读取数据库的相关配置文件 -->
<context:property-placeholder location="classpath:config/jdbc.properties"/>
<!-- 创建数据源DataSource -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="url" value="${jdbc.url}"></property>
<property name="driverClassName" value="${jdbc.driverClass}"></property>
<property name="username" value="${jdbc.user}"></property>
<property name="password" value="${jdbc.password}"></property>
<!-- 最大连接数 -->
<property name="maxActive" value="10"></property>
<!-- 最大空闲数 -->
<property name="maxIdle" value="5"></property>
</bean>
<!-- 创建一个SqlSessionFactory对象 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 关联连接池 -->
<property name="dataSource" ref="dataSource"></property>
<!--加载sql映射文件 -->
<property name="mapperLocations" value="classpath:mapper/*.xml"></property>
</bean>
<!-- 创建一个CustomerMapperImpl对象,然后向里面注入SQLSessionFactory的对象 -->
<bean id="customerMapper" class="cn.ssm1234.dao.impl.CustomerMapperimpl">
<!-- 关联或者输入sqlSeesionFactory -->
<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
</bean>
</beans>
第二种简化了操作实现类的操作,该方法中,我们直接注册创建mapper的接口的一个bean对象,然后向里面注入SQLSession的以来即可
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
">
<!-- 读取数据库的相关配置文件 -->
<context:property-placeholder location="classpath:config/jdbc.properties"/>
<!-- 创建数据源DataSource -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="url" value="${jdbc.url}"></property>
<property name="driverClassName" value="${jdbc.driverClass}"></property>
<property name="username" value="${jdbc.user}"></property>
<property name="password" value="${jdbc.password}"></property>
<!-- 最大连接数 -->
<property name="maxActive" value="10"></property>
<!-- 最大空闲数 -->
<property name="maxIdle" value="5"></property>
</bean>
<!-- 创建一个SqlSessionFactory对象 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 关联连接池 -->
<property name="dataSource" ref="dataSource"></property>
<!--加载sql映射文件 -->
<property name="mapperLocations" value="classpath:mapper/*.xml"></property>
</bean>
<!-- 配置Mapper接口 -->
<bean id="customerMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
<!-- 关联Mapper接口 -->
<property name="mapperInterface" value="cn.ssm1234.dao.CustomerMapper"></property>
<!-- 关联SqlSessionfactory -->
<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
</bean>
</beans>
第三种就是最简便,这里我们可以直接创建一个mapper接口的扫描器,这样我们只要定义扫描器所扫描的包,那样我们就可以一次性全部扫描出我们要用马屁拍二接口,而不需要没创建一个mapper接口就去创建该mapper接口的对象
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
">
<!-- 读取数据库的相关配置文件 -->
<context:property-placeholder location="classpath:config/jdbc.properties"/>
<!-- 创建数据源DataSource -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="url" value="${jdbc.url}"></property>
<property name="driverClassName" value="${jdbc.driverClass}"></property>
<property name="username" value="${jdbc.user}"></property>
<property name="password" value="${jdbc.password}"></property>
<!-- 最大连接数 -->
<property name="maxActive" value="10"></property>
<!-- 最大空闲数 -->
<property name="maxIdle" value="5"></property>
</bean>
<!-- 创建一个SqlSessionFactory对象 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 关联连接池 -->
<property name="dataSource" ref="dataSource"></property>
<!--加载sql映射文件 -->
<property name="mapperLocations" value="classpath:mapper/*.xml"></property>
</bean>
<!-- Mapper接口的扫描器 -->
<!--如果使用Mapper接口包扫描,那每个Mapper接口在spring容器中的id名称为类名:例如CustomerMapper就叫做customerMapper(类名首字母小写)
-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 配置Mapper接口包所在的路径 -->
<property name="basePackage" value="cn.ssm1234.dao"></property>
</bean>
<!-- 开启Spring的IOC注解扫描 -->
<context:component-scan base-package="cn.ssm1234"></context:component-scan>
</beans>
这里我们总结一下,在mybatis与Spring的整合过程中,必须的两步就是
1.连接数据库的相关操作
2.配置SQLSession对象
其次就是上述的三种整合方案选择。