1、根据id查询记录
2、通过多个id批量查询
//多个id批量查询
@Test
public void testSelectList() {
List<User> users = userMapper.selectBatchIds(Arrays.asList(1L, 2L, 3L));
System.out.println(users);
} //多个id批量查询
//多个id批量查询
@Test
public void testSelectList() {
List<User> users = userMapper.selectBatchIds(Arrays.asList(1L, 2L, 3L));
System.out.println(users);
} //多个id批量查询