spring mvc 3内容类型“；应用程序/json“；从客户端工作，但不从单元测试

我有一个使用Spring 3.1的Rest控制器方法，如下所示：

@RequestMapping(value="/user", method=RequestMethod.POST, consumes={MediaType.APPLICATION_JSON_VALUE})
public ResponseEntity<String> addUser(@RequestBody @Valid User user){   
    System.out.println("called / user method");
      try{
        user = userService.addUser(user); 
        return responseBuilder.addApiResourceSucceeded(user,null);
      }catch(Exception e){
        return responseBuilder.apiActionFailed("user already exists", HttpStatus.CONFLICT);  
      }
}

@Before
public void setUp() {
    adapter = new AnnotationMethodHandlerAdapter();
    request = new MockHttpServletRequest();
    response = new MockHttpServletResponse();
    mapper = new ObjectMapper();
}
@Test
public void testAddUser() throws Exception {
    request.setMethod("POST");
    request.setContentType(MediaType.APPLICATION_JSON_VALUE);
    request.setRequestURI("/user");

    ObjectNode userJson = mapper.createObjectNode();
    userJson.put("userId", "jonnybz");
    userJson.put("email", "test@gmail.com");
    userJson.put("password", "password");
    userJson.put("longitude",-10.127205999);
    userJson.put("latitude", 57.252269);
    ArrayNode arrNode = mapper.createArrayNode();
    arrNode.add(-10.1272059999);
    arrNode.add(57.2522);
    userJson.put("lonLat",arrNode);
    request.setContent(mapper.writeValueAsBytes(userJson));
    adapter.handle(request, response, userController); 

    String content = response.getContentAsString();
    assertEquals(200, response.getStatus());
    User user = dao.listAll().get(0);
    objectId = user.getId();
    assertNotNull(objectId);
}

@Test
public void testAddUser() throws Exception {

    ObjectNode userJson = mapper.createObjectNode();
    userJson.put("userId", "jonnbz");
    userJson.put("email", "test@gmail.com");
    userJson.put("password", "password");
    userJson.put("longitude",-10.667205999);
    userJson.put("latitude", 74.252269);
    ArrayNode arrNode = mapper.createArrayNode();
    arrNode.add(-10.667205999);
    arrNode.add(74.252269);
    userJson.put("lonLat",arrNode);
    MvcResult res = MockMvcBuilders.xmlConfigSetup("classpath:test-context.xml").build()
           .perform(MockMvcRequestBuilders.post("/user")
           .accept(MediaType.APPLICATION_JSON)
           .contentType(MediaType.APPLICATION_JSON)
           .body(mapper.writeValueAsBytes(userJson)))
           .andExpect(status().isOk())
           .andExpect(content().type(MediaType.APPLICATION_JSON))
           .andReturn();
            System.out.println(res.getResponse().getContentAsString());

}

当我从我的客户端应用程序（使用angular开发）执行对该端点的调用时，效果非常好，但当我运行测试时，我得到一个“内容类型‘application/json’，它来自我无法跟踪的HttpMediaTypeNotSupportedException”错误。这个要求似乎从来没有达到我的目的。我是不是错过了一些简单的东西

通过切换到框架并按如下方式构建我的测试，解决了这个问题：

@RequestMapping(value="/user", method=RequestMethod.POST, consumes={MediaType.APPLICATION_JSON_VALUE})
public ResponseEntity<String> addUser(@RequestBody @Valid User user){   
    System.out.println("called / user method");
      try{
        user = userService.addUser(user); 
        return responseBuilder.addApiResourceSucceeded(user,null);
      }catch(Exception e){
        return responseBuilder.apiActionFailed("user already exists", HttpStatus.CONFLICT);  
      }
}

@Before
public void setUp() {
    adapter = new AnnotationMethodHandlerAdapter();
    request = new MockHttpServletRequest();
    response = new MockHttpServletResponse();
    mapper = new ObjectMapper();
}
@Test
public void testAddUser() throws Exception {
    request.setMethod("POST");
    request.setContentType(MediaType.APPLICATION_JSON_VALUE);
    request.setRequestURI("/user");

    ObjectNode userJson = mapper.createObjectNode();
    userJson.put("userId", "jonnybz");
    userJson.put("email", "test@gmail.com");
    userJson.put("password", "password");
    userJson.put("longitude",-10.127205999);
    userJson.put("latitude", 57.252269);
    ArrayNode arrNode = mapper.createArrayNode();
    arrNode.add(-10.1272059999);
    arrNode.add(57.2522);
    userJson.put("lonLat",arrNode);
    request.setContent(mapper.writeValueAsBytes(userJson));
    adapter.handle(request, response, userController); 

    String content = response.getContentAsString();
    assertEquals(200, response.getStatus());
    User user = dao.listAll().get(0);
    objectId = user.getId();
    assertNotNull(objectId);
}

@Test
public void testAddUser() throws Exception {

    ObjectNode userJson = mapper.createObjectNode();
    userJson.put("userId", "jonnbz");
    userJson.put("email", "test@gmail.com");
    userJson.put("password", "password");
    userJson.put("longitude",-10.667205999);
    userJson.put("latitude", 74.252269);
    ArrayNode arrNode = mapper.createArrayNode();
    arrNode.add(-10.667205999);
    arrNode.add(74.252269);
    userJson.put("lonLat",arrNode);
    MvcResult res = MockMvcBuilders.xmlConfigSetup("classpath:test-context.xml").build()
           .perform(MockMvcRequestBuilders.post("/user")
           .accept(MediaType.APPLICATION_JSON)
           .contentType(MediaType.APPLICATION_JSON)
           .body(mapper.writeValueAsBytes(userJson)))
           .andExpect(status().isOk())
           .andExpect(content().type(MediaType.APPLICATION_JSON))
           .andReturn();
            System.out.println(res.getResponse().getContentAsString());

}

---

您还应该在测试中包含“application/json”的

Accept

头，因为您已经包含了

consumes=“application/json”

，Spring MVC将把Accept头值与consumes值匹配，然后才调用映射的方法。

将Accept头添加到测试集头中的请求和响应中(“接受”，MediaType.APPLICATION\u JSON\u VALUE），但如果没有，您应该回答自己的问题，而不是用内联答案更新问题。