C# 如何在 MVC3 中一起返回状态代码、状态描述和文本？
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How do I return a status code, status description and text together in MVC3?
提问by sharptooth
From my MVC3 controller action I want to return HTTP 403, set "status description" to some specific string and also return that string in the result content so that it is visible in the browser.
从我的 MVC3 控制器操作中，我想返回 HTTP 403，将“状态描述”设置为某个特定字符串，并在结果内容中返回该字符串，以便它在浏览器中可见。
I can return ContentResultto specify content, but not a status code (such as 403) and not a status description. I can use HttpStatusCodeResultto specify a status code and status description but not the result content.
我可以返回ContentResult指定内容，但不能指定状态代码（例如 403）和状态描述。我可以HttpStatusCodeResult用来指定状态代码和状态描述，但不能指定结果内容。
How do I craft an action result that contains all three?
如何制作包含所有三个的动作结果？
回答by Andrei
If this is not too dirty
如果这不是太脏
Response.Clear();
Response.Write("Some specific string");
return new HttpStatusCodeResult(403, "another specific string");
回答by drch
Commonly you would see this done by setting the response code then returning a regular ActionResult
通常，您会通过设置响应代码然后返回常规 ActionResult 来完成此操作
public ActionResult Foo()
{
Response.StatusCode = 403;
Response.StatusDescription = "Some custom message";
return View(); // or Content(), Json(), etc
}
If you really need this to be an ActionResult, you create your own.
如果您真的需要将其作为 ActionResult，您可以创建自己的。
Example:
例子：
public class HttpStatusContentResult : ActionResult
{
private string _content;
private HttpStatusCode _statusCode;
private string _statusDescription;
public HttpStatusContentResult(string content,
HttpStatusCode statusCode = HttpStatusCode.OK,
string statusDescription = null)
{
_content = content;
_statusCode = statusCode;
_statusDescription = statusDescription;
}
public override void ExecuteResult(ControllerContext context)
{
var response = context.HttpContext.Response;
response.StatusCode = (int) _statusCode;
if (_statusDescription != null)
{
response.StatusDescription = _statusDescription;
}
if (_content != null)
{
context.HttpContext.Response.Write(_content);
}
}
}
回答by MadReasonable
I went crazy trying to get this code to work before I realized it was the GetAwaiter().OnCompleted(...) that was the problem. Here's the version I got working:
在我意识到问题是 GetAwaiter().OnCompleted(...) 之前，我疯狂地试图让这段代码工作。这是我工作的版本：
public class ApiControllerBase : ApiController
{
...
// Other code
...
public override Task<HttpResponseMessage> ExecuteAsync(HttpControllerContext controllerContext, CancellationToken cancellationToken)
{
return base
.ExecuteAsync(controllerContext, cancellationToken)
.ContinueWith(t =>
{
t.Result.Headers.CacheControl = new CacheControlHeaderValue()
{
NoStore = true,
NoCache = true,
MaxAge = new TimeSpan(0),
MustRevalidate = true
};
t.Result.Headers.Pragma.Add(new NameValueHeaderValue("no-cache"));
t.Result.Content.Headers.Expires = DateTime.Parse("01 Jan 1990 00:00:00 GMT");
return t.Result;
}, cancellationToken);
}
}
