我正在尝试使用 GCM 在 android 客户端和 java 中的服务器应用程序之间进行通信。
我正在使用基于 XMPP 的 GCM，因为我需要异步、双向消息。
在我的客户端，
1. Google Play 服务检查显示需要更新。
google play services is out of date. Requires 4242000 but found 3136130
API 级别 - 17，使用 AVD 和 google API，Android 4.2.2
Google Play 服务修订版 15
我该如何解决这个问题？
但我可以成功注册设备。
在服务器端，我使用
2.我使用的是smack库3.4.1
我使用了谷歌文档中的示例代码。
我收到以下错误
gcm.googleapis.com:5235 Exception: XMPPError connecting to gcm.googleapis.com:5235.; : remote-server-error(502)
-- caused by: XMPPError connecting to gcm.googleapis.com:5235.: remote-server-error(502) XMPPError connecting to gcm.googleapis.com:5235.
-- caused by: java.net.ConnectException: Connection timed out: connect
at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:592)
at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:1010)
at SmackCcsClient.connect(SmackCcsClient.java:247)
at SmackCcsClient.main(SmackCcsClient.java:341)
Nested Exception:
XMPPError connecting to gcm.googleapis.com:5235.: remote-server-error(502) XMPPError connecting to gcm.googleapis.com:5235.
-- caused by: java.net.ConnectException: Connection timed out: connect
at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:565)
at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:1010)
at SmackCcsClient.connect(SmackCcsClient.java:247)
at SmackCcsClient.main(SmackCcsClient.java:341)
Nested Exception:
java.net.ConnectException: Connection timed out: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.<init>(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketFactoryImpl.createSocket(Unknown Source)
at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:557)
at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:1010)
at SmackCcsClient.connect(SmackCcsClient.java:247)
at SmackCcsClient.main(SmackCcsClient.java:341)
Exception in thread "main" java.lang.IllegalStateException: Not connected to server.
at org.jivesoftware.smack.XMPPConnection.sendPacket(XMPPConnection.java:483)
at SmackCcsClient.send(SmackCcsClient.java:131)
at SmackCcsClient.main(SmackCcsClient.java:356)
我已签署了上游消息传递表格。但仍有待批准。但连接本身在这里失败了。我该如何解决这个问题。
请帮忙！
先感谢您！！
The ERROR CODE 502意味着连接服务器有问题，可能有多种原因，但一些常见问题是，
1 ) FIREWALL PROBLEM----[正确配置你的防火墙]
2 ) 服务器内部错误----[稍后重试]
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