Spring MockMvc 返回 200 而不是 201。如何调试？

Question

我正在尝试使用 Spring MockMvc 测试具有多个 HTTP 动词的控制器。目前GET 和DELETE 按预期工作，但PUT 和PATCH 没有返回201，而应该返回。

PATCH 控制器设置如下：

@CustomRequestMapping(method = PATCH, value = "/{api-root}")
public ResponseEntity patch(@PathVariable(value = "api-root") String id, @RequestBody ApiRoot apiRoot) {
     return apiRootService.softUpdate(id, apiRoot);
}

@CustomRequestMapping... 注释只是将consumes 和produces 设置为特定的内容类型。

上面引用的softUpdate() 方法执行以下操作：

public ResponseEntity softUpdate(String id, ApiRoot apiRoot) {
    if (apiRoot.getId() == null) {
        apiRoot.setId(id);
    }

    ApiRootDocument updated = softUpdate(apiRoot);
    return ResponseEntity
            .created(EscapeUtil.buildUrl(applicationProperties.getHostname(), applicationProperties.getPort(), id))
            .body(updated);
}

这是在 MockMvc 单元测试之外工作和测试的。它正确地向 Postman 返回了一个 201 Created，正文是作为 PATCH 的结果创建的新 JSON 对象。

我的测试设置为：

public void testPatchApiRootEndpoint() throws Exception {
    String testTitle = "New Test Title";

    // Mock the service call for softUpdate() to return 'created' in the same way that the method does
    when(apiRootService.softUpdate(TestData.apiRoot1.getId(), TestData.apiRoot1.withTitle(testTitle)))
            .thenReturn(ResponseEntity
                .created(URI.create(EscapeUtil.buildUrlString("localhost", "8001", TestData.apiRoot1.getId())))
                .body((ApiRootDocument) TestData.apiRoot1.withTitle(testTitle)));

    // Perform a patch update using a new title provided as key-value
    JsonObject titleJson = new JsonObject();
    titleJson.addProperty("title", testTitle);
    mockMvc.perform(patch("/{api-root}", TestData.apiRoot1.getId())
                .contentType(Constants.TAXII2_CONTENT_TYPE)
                .content(titleJson.toString()))
            .andExpect(status().isCreated());
}

这会导致返回 200，而不是 201。我真的很困惑，很难研究。大多数类似的问题是在期望 2XX 时发现 4XX 响应代码，解决方案通常与请求的设置有关。

我似乎能找到的唯一有趣的日志是：

09:48:25.064 [main] DEBUG org.springframework.test.web.servlet.TestDispatcherServlet - Servlet '' configured successfully
09:48:25.208 [main] DEBUG org.springframework.test.web.servlet.TestDispatcherServlet - DispatcherServlet with name '' processing PATCH request for [/api-root-1]
09:48:25.211 [main] DEBUG org.springframework.test.web.servlet.setup.StandaloneMockMvcBuilder$StaticRequestMappingHandlerMapping - Looking up handler method for path /api-root-1
09:48:25.219 [main] DEBUG org.springframework.test.web.servlet.setup.StandaloneMockMvcBuilder$StaticRequestMappingHandlerMapping - Returning handler method [public org.springframework.http.ResponseEntity xor.bcmc.flarecloud.apiroot.controller.ApiRootController.patch(java.lang.String,xor.bcmc.taxii2.resources.ApiRoot)]
09:48:25.388 [main] DEBUG org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor - Read [class xor.bcmc.taxii2.resources.ApiRoot] as "application/vnd.oasis.taxii+json;version=2.0" with [org.springframework.http.converter.json.MappingJackson2HttpMessageConverter@20921b9b]
09:48:25.428 [main] DEBUG org.springframework.test.web.servlet.TestDispatcherServlet - Null ModelAndView returned to DispatcherServlet with name '': assuming HandlerAdapter completed request handling
09:48:25.428 [main] DEBUG org.springframework.test.web.servlet.TestDispatcherServlet - Successfully completed request

Answer 1

看起来您的模拟调用不起作用。您可以轻松检查是否将值替换为 any()：

when(apiRootService.softUpdate(Mockito.any(), Mockito.any())
.thenReturn(ResponseEntity
                .created(URI.create(EscapeUtil.buildUrlString("localhost", "8001", TestData.apiRoot1.getId())))
                .body((ApiRootDocument) TestData.apiRoot1.withTitle(testTitle)));

我刚刚检查你是否使用了来自控制器的错误模拟返回 200 状态，但如果模拟正确我得到 201。