Question

public HttpResponseMessage Get()
    {
        sessionResponse.message = "Not permitted";
        sessionResponse.code = statusCode.Unauthorized;

        HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.Unauthorized, sessionResponse);
        return response;
    }

这给了我总的html页面：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>401 - Unauthorized: Access is denied due to invalid credentials.</title></head>
<body>
<div id="header"><h1>Server Error</h1></div>
<div id="content">
<div class="content-container"><fieldset>
<h2>401 - Unauthorized: Access is denied due to invalid credentials.</h2>
<h3>You do not have permission to view this directory or page using the credentials that you supplied.</h3>
 </fieldset></div>
</div>
</body>
</html>

但是当我运行这段代码时：

public HttpResponseMessage Get()
    {
        sessionResponse.message = "Not permitted";
        sessionResponse.code = statusCode.Unauthorized;

        HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.OK, sessionResponse);
        return response;
    }

我得到了理想的JSON： { 消息：“不允许”，代码： “401” }

所以，当响应不是HTTPSTATUSCODE.OK时，我遇到了问题，我没有得到JSON。如果状态代码是Bad request或Unauthorized，我将获得text / html。怎么办呢？我在apiconfig文件中添加了JSON格式化程序，但没有运气。

Answer 1

您可以通过MediaTypeFormatter使用接受string类型或媒体类型的Request.CreateResponse overload来明确说明您要使用的格式化程序：

return Request.CreateResponse(HttpStatusCode.Unauthorized, sessionResponse, "application/json");

http状态代码200返回预期结果。但是当状态为BadRequest或Unauthorized时，我的C＃webapi 1将返回text / html

1 个答案: