mybatis使用sqlSessionFactory配置

spring调用代码如下

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(“classpath:spring-mybatis-config.xml”)
public class SqlSessionFactoryTest {
@Resource
SqlSessionFactory sessionFactory;
@Test
public void test() {
SqlSession sqlSession = sessionFactory.openSession(true);
Object o = sqlSession.selectOne(“mappers.user.count”, 1);
System.out.println(o);
}
}

大概配置结构如下图

配置文件如下

1. userMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="mappers.user" >
<select id="count" resultType="int">
	select count(*) from user
</select>
</mapper>

2. MybatisConfig

<?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 >
	<mappers>
		<mapper resource="userMapper.xml"/>
	</mappers>
</configuration>

3. DataSource&SqlSessionFactory

<?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:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
	http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
    <bean id="cardSaleSlaveDataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://127.0.0.1:3306/test" />
        <property name="username" value="root" />
        <property name="password" value="123456" />
    </bean>
</beans>