public interface UserMapper {
public int insertUser(User user) throws Exception;
}
<?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="com.cn.pojo.UserMapper">
<select id="count" resultType="com.cn.pojo.User">
select * from smbms_user
</select>
<insert id="insertUser" parameterType="com.cn.pojo.User"
keyProperty="id" useGeneratedKeys="true">
insert into smbms_user(userName) values(#{userName})
<selectKey keyProperty="id" order="AFTER" resultType="java.lang.Integer">
SELECT LAST_INSERT_ID()
</selectKey>
</insert>
</mapper>
<?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>
<properties resource="databases.properties" />
<environments default="development">
<environment id="development">
<transactionManager type="JDBC" />
<dataSource type="POOLED">
<property name="driver" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="com/cn/pojo/UserMapper.xml" />
</mappers>
</configuration>
@Test
public void insertMethod() {
try {
String resource = "mybatis-config.xml";
InputStream is = Resources.getResourceAsStream(resource);
SqlSessionFactory factory = new SqlSessionFactoryBuilder()
.build(is);
SqlSession sqlSession = factory.openSession();
User user = new User();
user.setUserName("一吕二赵三张飞");
int ni = sqlSession.getMapper(UserMapper.class).insertUser(user);
logger.info("返回的id:"+user.getId());
logger.debug(ni);
sqlSession.commit();
sqlSession.close();
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
