    @Test
    public void testDiscoverUserByScreenName() throws Exception {

        ResponseEntity<User> user1 = restTemplate.getForEntity("http://localhost:" + port + "/v1/user/bingohuang", User.class);
        assertEquals(HttpStatus.OK, user1.getStatusCode());

        ResponseEntity<User> user2 = restTemplate.getForEntity("http://localhost:" + port + "/v1/user/163yun", User.class);
        assertEquals(HttpStatus.OK, user2.getStatusCode());

        ResponseEntity<User> user3 = restTemplate.getForEntity("http://localhost:" + port + "/v1/user/huangqingbing", User.class);
        assertEquals(HttpStatus.OK, user3.getStatusCode());
    }