问题描述
如果我使用HttpListener,如何将WebException 304错误模拟回浏览器?
How do I mimic a WebException 304 error back to browser if I am using HttpListener?
那是我已经收到对HttpListener的请求,然后获得了HttpListenerContext,从这一点出发,我如何模仿/安排HTTP 304 Not Modified响应,以便通过HttpListenerContext.response有效地发送回浏览器?
That is I have received a request to my HttpListener, and then obtained the HttpListenerContext, then from this point how would I mimic/arrange for a HTTP "304 Not Modified" response to be effectively sent back to the browser via the HttpListenerContext.response?
编辑:
我尝试了以下操作,但是在将WebException.Status复制到HttpWebResponse时遇到错误。 StatusCode(状态码必须为三位数)。有关如何纠正此问题的任何想法?
I tried the following however I get an error trying to copy WebException.Status to HttpWebResponse.StatusCode (The status code must be exactly three digits). Any ideas on how to correct this?
catch (WebException ex)
{
listenerContext.Response.StatusCode = (int)ex.Status; //ERROR: The status code must be exactly three digits
listenerContext.Response.StatusDescription = ex.Message;
listenerContext.Response.Close();
谢谢
推荐答案
我认为我有:
catch (WebException ex)
{
if (ex.Status == WebExceptionStatus.ProtocolError)
{
int statusCode = (int) ((HttpWebResponse) ex.Response).StatusCode;
listenerContext.Response.StatusCode = statusCode;
listenerContext.Response.StatusDescription = ex.Message;
log("WARNING", uri, "WebException/ProtocolError: " + ex.GetType() + " - " + ex.Message);
}
else
{
log("ERROR", uri, "WebException - " + ex.GetType() + " - " + ex.Message);
}
listenerContext.Response.Close();
}
这篇关于HttpListener-如何发送WebException HTTP 304“未修改”错误返回浏览器?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!