Modify the Http Status Code text

问题

Question

How to modify the Status Code text (description/title)?

Example

For example: I want to change 200 (Ok) to 200 (My Custom Text)

Desciption

I want to create a HTTP response with custom Status Code (unreserved) 431. I want to modify it's text:

• 200 (OK)
• 400 (Bad Request)
• 431 (My message here)

I've tried:

var response = new HttpResponseMessage() 
{
    StatusCode = (HttpStatusCode) 431,
};

response.Headers.Add("Status Code", "431 My custom text"); // This throws error.

回答1:

Just add ReasonPhrase in initializer :

        var response = new HttpResponseMessage()
        {
            StatusCode = (HttpStatusCode)431,
            ReasonPhrase = "your text"
        };

It defines text of the message that send with the status code

回答2:

One way to solve this issue is to skip the validation of the header you add. This can be done with the TryAddWithoutValidation method.

var response = new HttpResponseMessage() 
{
    StatusCode = (HttpStatusCode) 431,
};

response.Headers.TryAddWithoutValidation ("Status Code", "431 My custom text");

来源：https://stackoverflow.com/questions/36462721/modify-the-http-status-code-text