从asp.net webservice推送android的通知 [英] Push notification for android from asp.net webservice
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问题描述
请帮助我,我有一个问题是从ASP.NET webservice(VB.NET)推送android的通知。
这是我的代码。
Please help me, I have a problem to push notification for android from ASP.NET webservice (VB.NET).
this is my code.
Public sApplicationID As String = "YYY....ZZZ"
Public sSENDER_ID As String = "222...555"
<WebMethod()> _
Public Function SendMessage(ByVal RegistrationID As String, ByVal Message As String) As String
Dim regid As String = RegistrationID
Dim tRequest As WebRequest
tRequest = WebRequest.Create("https://android.googleapis.com/gcm/send")
tRequest.Method = "post"
'tRequest.ContentType = " application/json"
tRequest.ContentType = " application/x-www-form-urlencoded"
tRequest.Headers.Add(String.Format("Authorization: key={0}", sApplicationID))
tRequest.Headers.Add(String.Format("Sender: id={0}", sSENDER_ID))
Dim postData As String = "{""collapse_key"":""score_update"",""time_to_live"":108,""delay_while_idle"":1,""data"":{""message"":""" & Convert.ToString(Message) & """,""time"":""" & System.DateTime.Now.ToString() & """},""registration_ids"":" & regid & "}"
Console.WriteLine(postData)
Dim byteArray As [Byte]() = Encoding.UTF8.GetBytes(postData)
tRequest.ContentLength = byteArray.Length
Dim dataStream As Stream = tRequest.GetRequestStream()
dataStream.Write(byteArray, 0, byteArray.Length)
dataStream.Close()
Dim tResponse As WebResponse = tRequest.GetResponse()
dataStream = tResponse.GetResponseStream()
Dim tReader As New StreamReader(dataStream)
Dim sResponseFromServer As [String] = tReader.ReadToEnd()
tReader.Close()
dataStream.Close()
tResponse.Close()
Return sResponseFromServer
End Function
< br $> b $ b
我正在测试这项服务,但我总是收到错误消息
I was testing this service but I always getting error message
System.Net.WebException: The remote server returned an error: (401) Unauthorized.
at System.Net.HttpWebRequest.GetResponse()
请帮助我..
Please Help me..
推荐答案
这对我来说在C#
This worked for me in C#
using System;
using System.IO;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Text;
namespace ENSource.Infrastructure
{
public static class AndroidGCM
{
public static string SendGCMNotification(string apiKey, string postData, string postDataContentType = "application/json")
{
//Delegate Modeling to Validate Server Certificate
ServicePointManager.ServerCertificateValidationCallback += new RemoteCertificateValidationCallback(ValidateServerCertificate);
//MESSAGE CONTENT
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
//CREATE REQUEST
HttpWebRequest Request = (HttpWebRequest)WebRequest.Create("https://android.googleapis.com/gcm/send");
Request.Method = "POST";
Request.KeepAlive = false;
Request.ContentType = postDataContentType;
Request.Headers.Add(HttpRequestHeader.Authorization, string.Format("key={0}", apiKey));
Request.ContentLength = byteArray.Length;
//Create Stream to Write Byte Array
Stream dataStream = Request.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();
try
{
//Post a Message
WebResponse Response = Request.GetResponse();
//Check the response status
HttpStatusCode ResponseCode = ((HttpWebResponse)Response).StatusCode;
string errorMessage = string.Empty;
if (ResponseCode.Equals(HttpStatusCode.Unauthorized) || ResponseCode.Equals(HttpStatusCode.Forbidden))
{
errorMessage = "Unauthorized - need new token";
}
else if (!ResponseCode.Equals(HttpStatusCode.OK))
{
errorMessage = "Response from web service isn't OK";
}
StreamReader Reader = new StreamReader(Response.GetResponseStream());
string responseLine = Reader.ReadToEnd();
Reader.Close();
return responseLine;
}
catch (Exception e)
{
return "error";
}
}
public static bool ValidateServerCertificate(
object sender,
X509Certificate certificate,
X509Chain chain,
SslPolicyErrors sslPolicyErrors)
{
return true;
}
}
}
您可以在
You can use it as under
/*
GCM gcm = new GCM();
var applicationID = "******wdVY8xs";
string deviceId = "A*****EAsEDth";
string message = "hey ,some text message";
string tickerText = "example test GCM";
string contentTitle = "content title GCM";
string postData =
"{ \"registration_ids\": [ \"" + deviceId + "\" ], " +
"\"data\": {\"tickerText\":\"" + tickerText + "\", " +
"\"contentTitle\":\"" + contentTitle + "\", " +
"\"message\": \"" + message + "\"}}";
var X = gcm.SendGCMNotification(applicationID, postData);
*/
您可以使用一些在线转换器将上述C#代码转换为VB.net。
希望这有助于
You can convert the above C# code to VB.net by using some online convertor.
Hope this helps
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