JSONObject应在路径$中找到属性为[“xxx”]的对象

Question

我已经制作了一个程序来使用第三部分API：我有一个名为：NewsService的服务

@Service
public class NewsService {
    @Autowired
    private NewsRepository newsRepository;
    public List<News> getTopStories() throws Exception{
        RestTemplate restTemplate = new RestTemplate();
        JSONObject news = new JSONObject();
        NewsStories newsentity = new NewsStories();
        List<News> stories = new ArrayList<News>();
        ObjectMapper mapper = new ObjectMapper();
        String getUrl = "https://api.nytimes.com/svc/topstories/v2/home.json?api-key=84e19f8ee1c7489a97481d2ed85af15c";
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_JSON);
        HttpEntity<Map> entity = new HttpEntity<Map>(headers);
        ResponseEntity<Map> newsList = restTemplate.exchange(getUrl, HttpMethod.GET, entity, Map.class);
        if (newsList.getStatusCode() == HttpStatus.OK) {
            news = new JSONObject(newsList.getBody());
            newsentity = mapper.readValue(news.toString(),NewsStories.class);
            newsentity.getStories().forEach(stories::add);
        }
        return stories;
    }
}`

我有我的控制器

@RestController
@RequestMapping("/api/")
public class NewsController {
        @Autowired
        NewsService newsService = new NewsService();
        @RequestMapping(value = "/news/topstories", method = RequestMethod.GET)
        public @ResponseBody List<News> getNews() throws Exception {
            return this.newsService.getTopStories();
        }
}`

一切都是好的，然而，当我运行我的测试（我不能改变它由内部审计控制）这里我的测试。

@SpringBootTest
@RunWith(SpringRunner.class)
public class ProjectApplicationTests {
    private MockMvc mockMvc;
    @Autowired
    WebApplicationContext context;
    @Before
    public void setup() {
        mockMvc = MockMvcBuilders.webAppContextSetup(context).build();
    }
    @Test
    public void Newstest_ok() throws Exception {
        mockMvc.perform(get("/api/news/topstories" )).andDo(print())
                .andExpect(status().isOk())
                .andExpect(MockMvcResultMatchers.jsonPath("$.title").exists())
                .andExpect(MockMvcResultMatchers.jsonPath("$.section").exists());
}`

接下来，在运行程序时，我遇到了程序中检查验证Exist（）的问题。你能帮帮我吗？下面的日志之后运行测试。

null

`

使用Postman http://localhost:8080/api/news/topstories，我获得了Json数据，状态为200 OK。

Answer 1

根据JSON响应，我们可以看到controller将body作为对象数组返回。

要访问spring MVC测试中的每个对象，请使用以下断言：

.andExpect(jsonPath("[0].title").value("titlevalue0"))
.andExpect(jsonPath("[1].title").value("titlevalue1"))