首先感谢你的帮助。我有一个让我发疯的问题......
实际上,我在我的Web服务中发出了一个GET请求,并且它工作正常。
如果我之后执行了相同的请求,则请求无法访问我的网络服务。我收到的结果与第一个结果相同......这是一个错误,因为我在两个请求之间做了一些更新。预期的结果是不同的。如果我在Windows手机上重新启动应用程序,结果会更新。
在我看来,我的目标是获得联系人的立场。尽管我更新了他们的职位,我仍然获得相同的职位。
private void Button_Click(object sender, RoutedEventArgs e)
{
System.Uri targetUri = new System.Uri("http://My-Ip-Address:8080/WhereAreMyFriends/webresources/positions/getMyContactsPositions/0660066000");
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(targetUri);
request.Method = "GET";
request.Accept = "application/xml";
request.BeginGetResponse(new AsyncCallback(ReadWebRequestCallback), request);
}
private void ReadWebRequestCallback(IAsyncResult callbackResult)
{
try
{
HttpWebRequest myRequest = (HttpWebRequest)callbackResult.AsyncState;
HttpWebResponse myResponse = (HttpWebResponse)myRequest.EndGetResponse(callbackResult);
if (myResponse.StatusCode == HttpStatusCode.OK)
{
using (StreamReader httpwebStreamReader = new StreamReader(myResponse.GetResponseStream()))
{
string results = httpwebStreamReader.ReadToEnd();
Dispatcher.BeginInvoke(() =>
{
MessageBox.Show(results);//NavigationService.Navigate(new Uri("/CodeVerification.xaml", UriKind.Relative));
});
}
myResponse.Close();
}
else
{
Dispatcher.BeginInvoke(() =>
{
MessageBox.Show("Status Code incorrect");
myResponse.Close();
});
}
}
catch (Exception e)
{
Dispatcher.BeginInvoke(() =>
{
MessageBox.Show(e.Message);
});
}
}
答案 0 :(得分:1)
这是一个缓存问题。添加"& random =" + DateTime.Now.Ticks"您的网址中的代码可以解决您的问题。
private void Button_Click(object sender, RoutedEventArgs e)
{
System.Uri targetUri = new System.Uri("http://My-Ip-Address:8080/WhereAreMyFriends/webresources/positions/getMyContactsPositions/0660066000"+"&random="+DateTime.Now.Ticks);
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(targetUri);
request.Method = "GET";
request.Accept = "application/xml";
request.BeginGetResponse(new AsyncCallback(ReadWebRequestCallback), request);
}
另一种方法是
private void Button_Click(object sender, RoutedEventArgs e)
{
System.Uri targetUri = new System.Uri("http://My-Ip-Address:8080/WhereAreMyFriends/webresources/positions/getMyContactsPositions/0660066000");
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(targetUri);
request.Headers[HttpRequestHeader.CacheControl] = "no-cache";
request.Headers[HttpRequestHeader.Pragma] = "no-cache";
request.Headers[HttpRequestHeader.IfModifiedSince] = dateTime.Now.ToString();
request.Method = "GET";
request.Accept = "application/xml";
request.BeginGetResponse(new AsyncCallback(ReadWebRequestCallback), request);
}
request.Headers [HttpRequestHeader.IfModifiedSince] = dateTime.Now.ToString(); 这迫使你的请求总是被执行 - 这对我来说是个窍门。