@Test
public void testadd() throws IOException {
//1.创建SQLSessionFactory对象
SqlSessionFactory sqlSessionFactory = getSessionFactory();
//回去sqlsession ，相当于jdbc中的connection
SqlSession session = sqlSessionFactory.openSession();
try {
EmployeeMapper mapper = session.getMapper(EmployeeMapper.class);
Employee employee = new Employee(null,"小花","[email protected]",30000.00,1);
mapper.addEmployee(employee);
session.commit();
System.out.println("这个对象为"+employee);
} finally {
session.close();
}
这个对象为Employee [id=null, lastName=小花, [email protected], salary=30000.0, deptId=1]
一、支持自增ID的数据库 如：mysql、sqlServer
<insert id="addEmployee" parameterType="com.atgui.spring.mybatis.entities.Employee"
useGeneratedKeys="true" keyProperty="id">
insert into employees(last_name,email,salary,dept_id) values(#{lastName},#{email},#{salary},#{deptId})
</insert>
加上这个 employee ID值就有了
这个对象为Employee [id=7, lastName=小花, [email protected], salary=30000.0, deptId=1]
不支持自增的数据库 如：oracle