public void test_codec() throws Exception {
User user = new User();
user.setValue(URI.create("http://www.alibaba.com/abc"));
SerializeConfig mapping = new SerializeConfig();
mapping.setAsmEnable(false);
String text = JSON.toJSONString(user, mapping, SerializerFeature.WriteMapNullValue);
User user1 = JSON.parseObject(text, User.class);
Assert.assertEquals(user1.getValue(), user.getValue());