单元测试中模拟Spring控制器方法模型绑定

Question

在Spring Boot（Spring MVC）中，我试图根据本问题中的#4测试表单到控制器的绑定。我在复制魔法帖请求时遇到问题-

WebRequest postRequest = new ServletWebRequest(new MockHttpServletRequest());
postRequest.setAttribute("itemModel.id", "23", RequestAttributes.SCOPE_REQUEST);
ItemModel itemModel = new ItemModel();
WebRequestDataBinder dataBinder = new WebRequestDataBinder(itemModel);
dataBinder.bind(postRequest);
assertThat(itemModel.getId(), equalTo(new Long(23)));

然而，我的断言失败了，itemModel。getId（）返回null。当spring调用@Controller类上的方法时，我如何像spring那样初始化模型？

更新

我已经更新了以下内容，但它仍然不起作用：

MockHttpServletRequest postRequest = new MockHttpServletRequest();
postRequest.addParameter("itemModel.id", "23");
WebRequest webPostRequest = new ServletWebRequest(postRequest);
ItemModel itemModel = new ItemModel();
WebRequestDataBinder dataBinder = new WebRequestDataBinder(itemModel);
dataBinder.bind(webPostRequest);
assertThat(itemModel.getId(), equalTo(new Long(23)));

Answer 1

使用HttpClient？进行集成测试怎么样？。如果对您有用，请看以下示例：

      @Test
     public void test() {
             HttpClient loggedClient = new HttpClient();
             PostMethod loginPostMethod = new PostMethod(loginURL);
             loginPostMethod.addParameter("j_username", login);
             loginPostMethod.addParameter("j_password", password);
             loginPostMethod.addParameter("remember", "1");
             loginPostMethod.addParameter("clientType", clientType);
             loginPostMethod.addParameter("clientVersion", clientVersion);
              httpClient.executeMethod(postMethod);


             String USERS_URL = HTTP_SERVER_DOMAIN + "/service";
             PutMethod put = new PutMethod(USERS_URL);
             put.addRequestHeader("Content-Type", "application/json");
             put.setRequestBody("your_body");

             try {
                 loggedClient.executeMethod(put);
             } catch (HttpException e) {
                 e.printStackTrace();
             } catch (IOException e) {
                 e.printStackTrace();
             }

             assertEquals(HttpStatus.SC_OK, put.getStatusCode());

}

Answer 2

我认为应该是“id”，而不是“itemModel.id”