我正在构建我的第一个
windowsPhone 8.1应用程序,我的应用程序的作用是创建与服务器的连接以从中获取信息,所以我编写代码来执行此过程通过向服务器发送json-rpc请求来获取一些信息,我我是第一次成功获得它但是当我发送第二个请求时,我收到一个404错误的空响应(找不到页面).
但是当我在没有https(仅限http)的情况下调用该服务时,无论我多少次调用它,它都能正常工作！
但是当我在没有https(仅限http)的情况下调用该服务时,无论我多少次调用它,它都能正常工作！
public async Task<string> GetDataFromServer(string urlToCall,string JSONData,string RR)
{
string UserName = “XXXXXXX”
string Password = "XXX";
using ( var handler = new HttpClientHandler())
{
handler.Credentials = new NetworkCredential(UserName,Password);
HttpClient client = new HttpClient(handler);
HttpResponseMessage response = null;
try
{
response = await client.PostAsync(urlToCall,new StringContent(JSONData.ToString(),Encoding.UTF8," application/json"));
string res = response.Content.ReadAsStringAsync().Result;
Windows.UI.Popups.MessageDialog g = new Windows.UI.Popups.MessageDialog(res);
await g.ShowAsync();
return res;
}
catch (Exception ex)
{
Windows.UI.Popups.MessageDialog g = new Windows.UI.Popups.MessageDialog("Error is : " + ex.Message);
g.ShowAsync();
return "Error";
}
finally
{
response.Dispose();
client.CancelPendingRequests();
client.Dispose();
handler.Dispose();
}
}
}
再次,当第一次调用服务的URL(以https开头)时我得到了搜索数据的响应,但第二次收到404错误的空响应(找不到页面)!!
请帮忙
解决方法
请尝试使用此解决方案.
public async Task<string> SendJSONData3(string urlToCall,string JSONData)
{
string UserName = "XXXXXXXXX";
string Password = "XXXXXXXXX";
var httpWebRequest = (HttpWebRequest)WebRequest.Create(urlToCall);
httpWebRequest.Credentials = new NetworkCredential(UserName,Password);
httpWebRequest.ContentType = "text/json";
httpWebRequest.Method = "POST";
using (var streamWriter = new StreamWriter(await httpWebRequest.GetRequestStreamAsync()))
{
string json = JSONData;
streamWriter.Write(json);
streamWriter.Flush();
}
var httpResponse = (HttpWebResponse)await httpWebRequest.GetResponseAsync();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
var result = streamReader.ReadToEnd();
return result;
}
}
