我是 gcm 新手，我尝试使用 Smack API 连接到 GCM 的云连接服务器（XMPP）。一开始还好
我的代码：
uid = "123456789";
apiKey = "A**************B";
XMPPTCPConnectionConfiguration.Builder config;
config.setSocketFactory(SSLSocketFactory.getDefault());
config = XMPPTCPConnectionConfiguration.builder();
config.setUsernameAndPassword(uid,apiKey);
config.setServiceName("gcm.googleapis.com");
config.setHost("gcm.googleapis.com");
config.setPort(5235);
config.setDebuggerEnabled(true);
mConnection = new XMPPTCPConnection(config.build());
mConnection.setPacketReplyTimeout(10000);
try {
mConnection.connect();
mConnection.login();
}
catch (SmackException | IOException | XMPPException e) {
System.out.println("Exception at SmackCcsClient.init()");
e.printStackTrace();
}
但我无法通过最初的握手过程。我一开始使用了一些虚拟的随机 GCMID 来测试下游消息传递，它显示在 smack 调试窗口中，但后来，相同的代码在以下 xml feed 之后没有显示任何内容：原始发送数据包:
<stream:stream xmlns='jabber:client' to='gcm.googleapis.com' xmlns:stream='http://etherx.jabber.org/streams' version='1.0' xml:lang='en'>
我尝试过
mConnection.login(uid+"@gcm.googleapis.com",apiKey);//even though i assume its next step of the handshake.
控制台打印以下错误：
org.jivesoftware.smack.SmackException$NoResponseException: No response received within reply timeout. Timeout was 10000ms (~10s). Used filter: No filter used or filter was 'null'.
at org.jivesoftware.smack.SmackException$NoResponseException.newWith(SmackException.java:106)
at org.jivesoftware.smack.SmackException$NoResponseException.newWith(SmackException.java:85)
at org.jivesoftware.smack.SynchronizationPoint.checkForResponse(SynchronizationPoint.java:253)
at org.jivesoftware.smack.SynchronizationPoint.checkIfSuccessOrWait(SynchronizationPoint.java:146)
at org.jivesoftware.smack.SynchronizationPoint.checkIfSuccessOrWaitOrThrow(SynchronizationPoint.java:125)
at org.jivesoftware.smack.tcp.XMPPTCPConnection.connectInternal(XMPPTCPConnection.java:837)
at org.jivesoftware.smack.AbstractXMPPConnection.connect(AbstractXMPPConnection.java:360)
at psdc.gcm.SmackCcsClient.init(SmackCcsClient.java:64)
at psdc.gcm.GCMServer.activate(GCMServer.java:44)
at psdc.servlets.Mapper.selectIds(Mapper.java:191)
at psdc.servlets.Mapper.doPost(Mapper.java:152)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:644)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:516)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1086)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:659)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:223)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1558)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1515)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Jun 25, 2015 5:36:18 PM org.jivesoftware.smack.AbstractXMPPConnection callConnectionClosedOnErrorListener
WARNING: Connection closed with error
java.io.EOFException: input contained no data
at org.xmlpull.mxp1.MXParser.fillBuf(MXParser.java:2965)
at org.xmlpull.mxp1.MXParser.more(MXParser.java:3003)
at org.xmlpull.mxp1.MXParser.parseProlog(MXParser.java:1409)
at org.xmlpull.mxp1.MXParser.nextImpl(MXParser.java:1394)
at org.xmlpull.mxp1.MXParser.next(MXParser.java:1092)
at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader.parsePackets(XMPPTCPConnection.java:1151)
at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader.access$200(XMPPTCPConnection.java:937)
at org.jivesoftware.smack.tcp.XMPPTCPConnection$PacketReader$1.run(XMPPTCPConnection.java:952)
at java.lang.Thread.run(Unknown Source)
请帮助我解决这个问题，因为我真的陷入了这个困境，无处可去。请告诉我一种方法来检查我的 xml 请求是否到达谷歌。
我使用 SMACK 库版本 4.1.1
使用 config.setSecurityMode(ConnectionConfiguration.SecurityMode.ifpossible);解决了我的问题。它定义要使用的连接的配置。如果服务器支持相同的功能，则打开 TLS。
refer : http://www.igniterealtime.org/builds/smack/docs/latest/javadoc/org/jivesoftware/smack/ConnectionConfiguration.html http://www.igniterealtime.org/builds/smack/docs/latest/javadoc/org/jivesoftware/smack/ConnectionConfiguration.html
config = XMPPTCPConnectionConfiguration.builder();
config.setSecurityMode(ConnectionConfiguration.SecurityMode.ifpossible);
config.setSocketFactory(SSLSocketFactory.getDefault());
config.setUsernameAndPassword(uid,apiKey);
config.setServiceName("gcm.googleapis.com");
config.setHost("gcm.googleapis.com");
config.setPort(5235);
config.setDebuggerEnabled(true);
mConnection = new XMPPTCPConnection(config.build());
mConnection.setPacketReplyTimeout(10000);
try {
mConnection.connect();
希望它能帮助某人。
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