读取Ajax onSuccess中的HttpResponseMessage

Read HttpResponseMessage in Ajax onSuccess

本文关键字：HttpResponseMessage 中的 onSuccess Ajax 读取更新时间：2023-09-26

这是我的APIController方法-

[HttpPost]
public HttpResponseMessage Get(string url) {
    string responseString = GetWebApiData(url);
    HttpResponseMessage response = new HttpResponseMessage();
    if (!string.IsNullOrEmpty(responseString) && responseString.ToString().IsValid()) {
        response.ReasonPhrase = "Valid";
        response.StatusCode = HttpStatusCode.OK;
    } else {
        response.ReasonPhrase = "Invalid";
        response.StatusCode = HttpStatusCode.BadRequest;
    }
    return response;
}

这是我的ajax调用上述方法-

$.ajax({
    type: "POST",
    url: "http://localhost:50/api/DC/" + formData,
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    success: function(data, textStatus, xhr) {

    },
    failure: function(response) {
        alert(response.responseText);
    },
    error: function(response) {
        alert(response.responseText);
    }
});

我无法读取API方法返回的HttpResponseMessage。对于OK和Bad Request的条件，ajax方法的xhr中返回的状态码是204 &没有内容。我需要根据响应代码进行验证。任何帮助，请!

I tried success: function(response) too, response是undefined。

响应是204 No content，因为您实际上没有添加任何内容。你所做的就是设置响应代码。您可以像这样向响应添加内容:

response.Content = new StringContent("Return data goes here");

或者使用Request.CreateResponse()/CreateErrorResponse()为您创建HttpResponseMessage:

[HttpPost]
public HttpResponseMessage Get(string url)
{
    string responseString = GetWebApiData(url);
    if (!string.IsNullOrEmpty(responseString) && responseString.ToString().IsValid())
    {
        return Request.CreateResponse("Valid"); // I'd suggest returning an object here to be serialised to JSON or XML
    }
    return Request.CreateErrorResponse(HttpStatusCode.BadRequest, "Invalid");
}

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