Junit MockMvc perform POST with path variable in URL return 404 not found

Question

我有一个 SpringBoot 应用程序，在控制器中使用此方法在数据库中创建用户。控制器在 Postman 中工作正常。

@RestController
@RequestMapping("/v1")
public class UserController {

  @PostMapping(value = "/user/{id}")
  public void createUser(@PathVariable Integer id, @Valid @RequestBody User request,
        BindingResult bindingResult) throws Exception {

    if (bindingResult.hasErrors()) {        
        throw new RequestValidationException(VALIDATION_ERRORS, bindingResult.getFieldErrors());
    }               
    userService.createUser(id, request), HttpStatus.CREATED);
}

现在我有一个 junit 测试用例来测试这个方法，我得到一个 404

@RunWith(SpringRunner.class)
@SpringBootTest(classes = MyApp.class)
public class UserTest {

  private MockMvc mockMvc;
  final String CREATE_USER_URL = "/v1/user/" + "10";

  private final MediaType contentType = new MediaType(MediaType.APPLICATION_JSON.getType(),
        MediaType.APPLICATION_JSON.getSubtype(), Charset.forName("utf8"));

@Test
public void testCreateUser() throws Exception { 

  mockMvc.perform(post(CREATE_USER_URL)  
   // doesn't work either if I put "/v1/user/10" or post("/v1/user/{id}", 10) here
            .content(TestUtils.toJson(request, false))
            .contentType(contentType))
            .andDo(print())
            .andExpect(status().isCreated())
            .andReturn();  
 }

但是在日志中，我能够看到正确的 url:

MockHttpServletRequest:

  HTTP Method = POST
  Request URI = /v1/user/10
  Parameters = {}

有人可以告诉我为什么我收到 404 NOT Found 吗？谢谢。

Answer 1

从 docs 你需要 @AutoConfigureMockMvc 在 class 和 @Autowire MockMvc

Another useful approach is to not start the server at all, but test only the layer below that, where Spring handles the incoming HTTP request and hands it off to your controller. That way, almost the full stack is used, and your code will be called exactly the same way as if it was processing a real HTTP request, but without the cost of starting the server. To do that we will use Spring’s MockMvc, and we can ask for that to be injected for us by using the @AutoConfigureMockMvc annotation on the test case:

代码：

@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
public class UserTest {

   @Autowire
   private MockMvc mockMvc;
   final String CREATE_USER_URL = "/v1/user/" + "10";

   private final MediaType contentType = new MediaType(MediaType.APPLICATION_JSON.getType(),
    MediaType.APPLICATION_JSON.getSubtype(), Charset.forName("utf8"));

  @Test
  public void testCreateUser() throws Exception { 

    mockMvc.perform(post(CREATE_USER_URL)  
 // doesn't work either if I put "/v1/user/10" or post("/v1/user/{id}", 10) here
        .content(TestUtils.toJson(request, false))
        .contentType(contentType))
        .andDo(print())
        .andExpect(status().isCreated())
        .andReturn();  
   }
}

Answer 2

If want to Test your real springboot url Test (End to end Test)    
u can use  rest-assured or resttemplte 

@RunWith(SpringJUnit4ClassRunner.class)  
@ContextConfiguration(classes = Application.class) 
@TestPropertySource(value={"classpath:application.properties"})
@SpringBootTest(webEnvironment = WebEnvironment.DEFINED_PORT)
public class SpringRestControllerTest {
    @Value("${server.port}") 
    int port;
       @Test
       public void getDataTest() {
              get("/api/tdd/responseData").then().assertThat().body("data", equalTo("responseData"));
       }
       @Before
       public void setBaseUri () {
               RestAssured.port = port;
               RestAssured.baseURI = "http://localhost"; // replace as appropriate
       }
}

https://dzone.com/articles/test-driven-development-with-spring-boot-rest-api

Junit MockMvc perform POST with path variable in URL return 404 not found

Junit MockMvc perform POST with path variable in URL return 404 not found

java

junit

spring-boot

mockmvc