@Test
public void testGetList() throws Exception {

  List<TestObj> list = WXJsonUtils.getList("[{'a':1},{'a':2}]",TestObj.class);
  assertEquals(list.size(),2);
  assertEquals(list.get(0).getA(),1);
  assertEquals(list.get(1).getA(),2);
  list = WXJsonUtils.getList("{}",TestObj.class);
  assertEquals(list.size(),0);
}