@Test
  public void testRepeat() throws Exception {

    for (int i = 0; i < 20; i++) {
      try {
        testService.queryData();
      } catch (Exception e) {
        System.out.println("queryData -> Exception: " + e);
      }
      try {
        testService.insertData("好吧");
      } catch (Exception e) {
        System.out.println("insertData -> Exception: " + e);
      }
      try {
        Thread.sleep(3000);
      } catch (InterruptedException e) {
      }
    }
  }
 @Test
 public void test() throws Exception {
   testService.queryData();
   testService.insertData("好吧");
 }