MocMVC给出HttpMessageNotReadableException [英] MocMVC giving HttpMessageNotReadableException
问题描述
我仍在学习有关测试的方法，并且正在尝试让MockMvc测试对我有用.这是一个简单的REST控制器，目前仅使用帖子中json的信息进行一些身份验证.我实际上已经实现了代码，所以我知道它是有效的，因为我以json格式获取了正确的响应，正确的输入和错误消息.我的问题是，即使实际代码可行，测试仍会因HttpMessageNotReadableException而失败，因此我假设我没有正确设置测试.你们能提供的任何帮助都会很棒.
I'm still learning my way around testing and I'm trying to get a MockMvc test to work for me. It's a simple REST controller that at this point is only doing some authentication using information from json in the post. I've actually implemented the code, so I know it's working because I get back both the correct response with the correct input and the error messages I've put together, both in a json format. My problem is that the test keeps failing with a HttpMessageNotReadableException, even though the actual code works, so I'm assuming I don't have my test set up right. Any help you guys can give would be great.
这是我的控制器
@Controller
public class RequestPaymentController {
protected final Log logger = LogFactory.getLog(getClass());
private PaymentService paymentService;
private LoginService loginService;
@Autowired
public void setPaymentService(PaymentService paymentService){
this.paymentService = paymentService;
}
@Autowired
public void setLoginService(LoginService loginService){
this.loginService = loginService;
}
@RequestMapping(value = "/requestpayment", method = RequestMethod.POST, headers="Accept=application/json")
@ResponseBody
public ResponseEntity<PaymentResult> handleRequestPayment(@RequestBody PaymentRequest paymentRequest, HttpServletRequest request, HttpServletResponse response, BindingResult result) throws Exception{
ResponseEntity<PaymentResult> responseEntity = null;
new LoginValidator().validate(paymentRequest, result);
boolean valid = loginService.isLoginValid(paymentRequest, result);
if (valid){
responseEntity = setValidResponse(paymentRequest);
}else {
throw new TumsException("exception message");
}
return responseEntity;
}
private ResponseEntity<PaymentResult> setValidResponse(PaymentRequest paymentRequest){
PaymentResult paymentResult = paymentService.getResults(paymentRequest);
return new ResponseEntity<PaymentResult>(paymentResult, HttpStatus.OK);
}
}
这是我的测试代码:
public class RequestPaymentControllerTest {
PaymentService mockPaymentService;
RequestPaymentController requestPaymentController;
HttpServletRequest mockHttpServletRequest;
HttpServletResponse mockHttpServletResponse;
PaymentRequest mockPaymentRequest;
BindingResult mockBindingResult;
LoginService mockLoginService;
PaymentResult mockPaymentResult;
MockMvc mockMvc;
@Before
public void setUp() throws Exception {
mockPaymentService = createMock(PaymentService.class);
mockHttpServletRequest = createMock(HttpServletRequest.class);
mockHttpServletResponse = createMock(HttpServletResponse.class);
mockPaymentRequest = createMock(PaymentRequest.class);
requestPaymentController = new RequestPaymentController();
mockBindingResult = createMock(BindingResult.class);
mockLoginService = createMock(LoginService.class);
requestPaymentController.setPaymentService(mockPaymentService);
mockPaymentResult = createMock(PaymentResult.class);
mockMvc = MockMvcBuilders.standaloneSetup(new RequestPaymentController()).build();
}
@After
public void tearDown() throws Exception {
mockPaymentService = null;
mockHttpServletRequest = null;
mockHttpServletResponse = null;
mockPaymentRequest = null;
requestPaymentController = null;
mockBindingResult = null;
mockLoginService = null;
mockPaymentResult = null;
mockMvc = null;
}
@Test
public void testHandleRequestPayment() throws Exception{
initializeStateForHandleRequestPayment();
createExpectationsForHandleRequestPayment();
replayAndVerifyExpectationsForHandleRequestPayment();
}
private void initializeStateForHandleRequestPayment(){
}
private void createExpectationsForHandleRequestPayment(){
mockPaymentRequest.getServiceUsername();
expectLastCall().andReturn("testuser");
mockPaymentRequest.getServicePassword();
expectLastCall().andReturn("password1!");
mockLoginService.isLoginValid(mockPaymentRequest,mockBindingResult);
expectLastCall().andReturn(true);
mockPaymentService.getResults(mockPaymentRequest);
expectLastCall().andReturn(mockPaymentResult);
}
private void replayAndVerifyExpectationsForHandleRequestPayment() throws Exception{
replay(mockPaymentService, mockBindingResult, mockHttpServletRequest, mockHttpServletResponse, mockPaymentRequest, mockLoginService);
requestPaymentController.setLoginService(mockLoginService);
requestPaymentController.handleRequestPayment(mockPaymentRequest, mockHttpServletRequest, mockHttpServletResponse, mockBindingResult);
mockMvc.perform(post("/requestpayment")
.contentType(MediaType.APPLICATION_JSON)
.accept(MediaType.APPLICATION_JSON))
.andDo(print())
.andExpect(status().isBadRequest());
verify(mockPaymentService, mockBindingResult, mockHttpServletRequest, mockHttpServletResponse, mockPaymentRequest, mockLoginService);
}
}
andDo(print())的结果是:
The results of the andDo(print()) are:
MockHttpServletRequest:
HTTP Method = POST
Request URI = /requestpayment
Parameters = {}
Headers = {Content-Type=[application/json], Accept=[application/json]}
Handler:
Type = portal.echecks.controller.RequestPaymentController
Method = public org.springframework.http.ResponseEntity<portal.echecks.model.PaymentResult> portal.echecks.controller.RequestPaymentController.handleRequestPayment(portal.echecks.model.PaymentRequest,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,org.springframework.validation.BindingResult) throws java.lang.Exception
Resolved Exception:
Type = org.springframework.http.converter.HttpMessageNotReadableException
ModelAndView:
View name = null
View = null
Model = null
FlashMap:
MockHttpServletResponse:
Status = 400
Error message = null
Headers = {}
Content type = null
Body =
Forwarded URL = null
Redirected URL = null
Cookies = []
Process finished with exit code 0
如您所见，当我期望错误的请求状态时，测试通过了，但是我已经记录了日志，而且我知道我发回的ResponseBody的状态为200.就像我说的那样，这是我第一次使用MockMvc，所以我认为我没有进行正确的设置.有什么建议?
As you can see, the test passes when I'm expecting a bad request status, but I've put in logging and I know that the ResponseBody I'm sending back has a 200 status. Like I said, this is my first time with MockMvc, so I assume I've not set something up right. Any suggestions?
推荐答案
HttpMessageNotReadableException是
由HttpMessageConverter实现抛出的read方法 失败.
Thrown by HttpMessageConverter implementations when the read method fails.
您的回复中还会收到一个400错误的请求.所有这些都应该告诉您，您没有发送服务器期望的内容.您的服务器期待什么?
You also get a 400 Bad Request in your response. This should all tell you that you are not sending what your server is expecting. What is your server expecting?
@RequestMapping(value = "/requestpayment", method = RequestMethod.POST, headers="Accept=application/json")
@ResponseBody
public ResponseEntity<PaymentResult> handleRequestPayment(@RequestBody PaymentRequest paymentRequest, HttpServletRequest request, HttpServletResponse response, BindingResult result) throws Exception{
这里最主要的是@RequestBody带注释的参数.因此，您要告诉服务器尝试从HTTP POST请求的主体中反序列化PaymentRequest实例.
The main thing here is the @RequestBody annotated parameter. So you are telling your server to try and deserialize a PaymentRequest instance from the body of the HTTP POST request.
因此，让我们看看您的要求
So let's see the request you are making
mockMvc.perform(post("/requestpayment")
.contentType(MediaType.APPLICATION_JSON)
.accept(MediaType.APPLICATION_JSON))
.andDo(print())
.andExpect(status().isBadRequest());
I don't see you providing a body to the request. There should be a content(String) call somewhere in there to set the content of the POST request. This content should be a JSON serialization of a PaymentRequest.
请注意，由于您正在使用StandaloneMockMvcBuilder，因此可能需要自行设置HttpMessageConverter实例. MappingJackson2HttpMessageConverter来序列化和反序列化JSON.
Note that because you are using the StandaloneMockMvcBuilder, you might need to set the HttpMessageConverter instances yourself, ie. a MappingJackson2HttpMessageConverter to serialize and deserialize JSON.
请注意，BindingResult参数应紧随与其相关的参数之后.像这样
Note that the BindingResult parameter should come immediately after the parameter to which it's related. Like so
@RequestMapping(value = "/requestpayment", method = RequestMethod.POST, headers="Accept=application/json")
@ResponseBody
public ResponseEntity<PaymentResult> handleRequestPayment(@Valid @RequestBody PaymentRequest paymentRequest, BindingResult result, HttpServletRequest request, HttpServletResponse response) throws Exception{
别忘了@Valid.
请注意，
requestPaymentController.setLoginService(mockLoginService);
requestPaymentController.handleRequestPayment(mockPaymentRequest, mockHttpServletRequest, mockHttpServletResponse, mockBindingResult);
与您正在执行的MockMvc测试完全无关.
is completely unrelated to the MockMvc test you are doing.
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