@Test
public void changeServerGroup() throws Exception {

    Set<Long> appGroupIds = new HashSet<>();
    appGroupIds.add(1L);
    appGroupIds.add(2L);
    int count = appGroupDao.changeServerGroup(2L, appGroupIds);
    System.out.println("changeServerGroup :-------> " + count);
    Assert.assertTrue(count > 0);
}