[英]I cannot seem to get anything back when using httpWebResponse
我正在使用以下代码:
var request = (HttpWebRequest)WebRequest.Create(new Uri(addy));
request.UserAgent = "Mozilla/5.0 (Windows; U; MSIE 9.0; WIndows NT 9.0; en-US))";
request.BeginGetResponse(
r =>
{
var httpRequest = (HttpWebRequest)r.AsyncState;
var httpResponse = (HttpWebResponse)httpRequest.EndGetResponse(r);
using (var reader = new StreamReader(httpResponse.GetResponseStream()))
{
var response = reader.ReadToEnd();
results = (String)response;
}
}, request);
addy是: http ://maps.googleapis.com/maps/api/geocode/xml?address=limavady&sensor=false
结果只是我要向其输出Web请求结果的全局字符串。
问题是我一直在向结果中输出空值,并且已经检查了网址并且它是正确的并且应该具有输出。
关于此问题的任何想法,或者如果您能指出正确的方向,我将不胜感激
Content-Encoding: gzip
向您发送数据。 将NuGet包SharpZipLib.WindowsPhone7
添加到您的项目中,然后在下面查看我的示例代码。 检查HttpWebResponse.StatusCode
属性。
static Stream responseStream( this HttpWebResponse resp ) { if( null == resp ) return null; string enc = resp.Headers[ HttpRequestHeader.ContentEncoding ]; if( !string.IsNullOrEmpty( enc ) ) { enc = enc.ToLower(); if( enc == "gzip" ) return new GZipInputStream( resp.GetResponseStream() ); } return resp.GetResponseStream(); }
感谢您的帮助,我设法使用以下方法解决了该问题:
WebClient webClient = new WebClient();
webClient.OpenReadAsync(new Uri(addy));
webClient.OpenReadCompleted += new OpenReadCompletedEventHandler(webClient_OpenReadCompleted);
}
void webClient_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
{
var reader = new StreamReader(e.Result);
results = reader.ReadToEnd();
}
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