正如你可能已经看到的,谷歌正在迁移其推送通知系统。
http://developer.android.com/guide/google/gcm/c2dm.html
是否有使用Asp.Net应用程序实现Google Cloud Messaging (GCM)的示例或指南?
发布于 2012-07-25 21:39:23
我有一段代码,它可以很好地为我工作,可以有所帮助,我测试了它…
void send(string regId)
{
var applicationID = "xxxxxxxx";
var SENDER_ID = "xxxxx";
var value = txtMsg.Text;
WebRequest tRequest;
tRequest = WebRequest.Create("https://android.googleapis.com/gcm/send");
tRequest.Method = "post";
tRequest.ContentType = " application/x-www-form-urlencoded;charset=UTF-8";
tRequest.Headers.Add(string.Format("Authorization: key={0}", applicationID));
tRequest.Headers.Add(string.Format("Sender: id={0}", SENDER_ID));
// string postData = "{ 'registration_id': [ '" + regId + "' ], 'data': {'message': '" + txtMsg.Text + "'}}";
string postData = "collapse_key=score_update&time_to_live=108&delay_while_idle=1&data.message=" + value + "&data.time=" + System.DateTime.Now.ToString() + "®istration_id=" + regId + "";
Console.WriteLine(postData);
Byte[] byteArray = Encoding.UTF8.GetBytes(postData);
tRequest.ContentLength = byteArray.Length;
Stream dataStream = tRequest.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();
WebResponse tResponse = tRequest.GetResponse();
dataStream = tResponse.GetResponseStream();
StreamReader tReader = new StreamReader(dataStream);
String sResponseFromServer = tReader.ReadToEnd();
lblStat.Text = sResponseFromServer;
tReader.Close();
dataStream.Close();
tResponse.Close();
}
发布于 2012-07-06 09:20:22
以下是c#中的代码
WebRequest tRequest;
tRequest = WebRequest.Create("https://android.googleapis.com/gcm/send");
tRequest.Method = "post";
tRequest.ContentType = "application/x-www-form-urlencoded";
tRequest.Headers.Add(string.Format("Authorization: key={0}", GoogleAppID));
String collaspeKey = Guid.NewGuid().ToString("n");
String postData=string.Format("registration_id={0}&data.payload={1}&collapse_key={2}", DeviceID, "Pickup Message" + DateTime.Now.ToString(), collaspeKey);
Byte[] byteArray = Encoding.UTF8.GetBytes(postData);
tRequest.ContentLength = byteArray.Length;
Stream dataStream = tRequest.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();
WebResponse tResponse = tRequest.GetResponse();
dataStream = tResponse.GetResponseStream();
StreamReader tReader = new StreamReader(dataStream);
String sResponseFromServer = tReader.ReadToEnd();
tReader.Close();
dataStream.Close();
tResponse.Close();
发布于 2012-06-29 20:49:24
不久前,我一直在尝试使用C2DM发送推送通知。我根据这个页面上提到的更改修改了代码:http://developer.android.com/guide/google/gcm/c2dm.html#server以使用GCM服务:
Private Sub btnPush_Click(sender As Object, e As System.EventArgs) Handles btnPush.Click
lblResponse.Text = SendNotification(AIzaSyB-1uEai2WiUapxCs2Q0GZYzPu7Udno5aA)
End Sub
我的SendNotification函数:
Private Function SendNotification(ByVal authstring As String) As String
ServicePointManager.ServerCertificateValidationCallback = Function(sender As Object, certificate As X509Certificate, chain As X509Chain, sslPolicyErrors As SslPolicyErrors) True
Dim request As WebRequest = WebRequest.Create("https://android.googleapis.com/gcm/send")
request.Method = "POST"
request.ContentType = "application/x-www-form-urlencoded"
request.Headers.Add(String.Format("Authorization: key={0}", authstring))
Dim collaspeKey As String = Guid.NewGuid().ToString("n")
Dim postData As String = String.Format("registration_id={0}&data.payload={1}&collapse_key={2}", deviceList.SelectedValue, txtPayload.Text, collaspeKey)
Dim byteArray As Byte() = Encoding.UTF8.GetBytes(postData)
request.ContentLength = byteArray.Length
Dim dataStream As Stream = request.GetRequestStream()
dataStream.Write(byteArray, 0, byteArray.Length)
dataStream.Close()
Dim response As WebResponse = request.GetResponse()
dataStream = response.GetResponseStream()
Dim reader As New StreamReader(dataStream)
Dim responseFromServer As String = reader.ReadToEnd()
reader.Close()
dataStream.Close()
response.Close()
Return responseFromServer
End Function
看起来GCM不需要你通过Google的认证来获得一个认证密钥(就像C2DM的情况一样)。相反,您需要一个传递给SendNotification函数的API。这个页面应该会帮助你设置你的API密钥:http://developer.android.com/guide/google/gcm/gs.html
我的web表单的代码如下,以防万一:
<form id="form1" runat="server">
<div>
<asp:DropDownList ID="deviceList" runat="server">
<asp:ListItem Value="device-id-goes-here">Eclipse AVD</asp:ListItem>
<asp:ListItem Value="device-id-goes-here">My Phone 1</asp:ListItem>
<asp:ListItem Value="device-id-goes-here">My Phone 2</asp:ListItem>
</asp:DropDownList>
<br /><br />
<asp:TextBox ID="txtPayload" runat="server" Width="480px"></asp:TextBox>
<br /><br />
<asp:Button ID="btnPush" runat="server" Text="Push" />
<asp:Label ID="lblResponse" runat="server" Text=""></asp:Label>
</div>
</form>
至于创建安卓应用程序以接收推送通知,请查看此链接:http://developer.android.com/guide/google/gcm/gs.html#android-app
别忘了导入System.Net、System.IO、System.Security.Cryptography.X509Certificates和System.Net.Security。
https://stackoverflow.com/questions/11261718
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