- 导入必须jar包
- mybatis核心jar包
- mybatis依赖jar包
- 数据库驱动包
- 建立数据库表
- 建立实体类
- 建立Mapper接口
- 建立sql映射文件
<?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"> <!-- 编写sql语句 --> <mapper namespace="com.fei.dao.CustomerMapper"> <select id="selectList" resultType="com.fei.domain.Customer"> select * from t_customer </select> </mapper>
- 建立sqlMapConfig.xml配置文件
<?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> <!-- 读取配置文件 --> <properties resource="db.properties" /> <!-- 配置数据库连接池 --> <environments default="development"> <environment id="development"> <transactionManager type="JDBC" /> <dataSource type="POOLED"> <property name="driver" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> </dataSource> </environment> </environments> <mappers> <mapper resource="mapper/CustomerMapper.xml" /> </mappers> </configuration> - 编写测试类
// 0创建SqlSessionFactoryBuilder SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder(); // 1加载sqlMapConfig.xml配置文件 InputStream is = Resources.getResourceAsStream("sqlMapConfig.xml"); // 2创建sqlSessionFactory SqlSessionFactory factory = builder.build(is); // 3打开SqlSession SqlSession sqlSession = factory.openSession(); // 4获取Mapper接口的对象 CustomerMapper customerMapper = sqlSession.getMapper(CustomerMapper.class); // 5.操作 Customer customer = new Customer(); customer.setName("小明85"); customer.setPhone("18801069853"); customer.setGender("男"); customer.setAddress("北京市海淀区"); customerMapper.insert(customer); // 6提交事务 sqlSession.commit(); // 7关闭连接 sqlSession.close(); 来源：博客园
作者：行之间
链接：https://www.cnblogs.com/zxfei/p/11571600.html