java.io.EOFException : no more data available - expected end tag </stream:stream> to close start tag <stream:stream> 异常

Question

我正在使用 xmpp 开发聊天应用程序，根据我们的要求，我们有三台服务器 Apache Tomcat 7、ejabbered 2.1.11 和 mysql 5.5，

to run xmppbot on tomcat  used below library
    -Smack-core-4.0.3.jar
    -smack-tcp-4.0.3.jar
    -xlightweb2.5.jar
    -xpp3-1.1.3.3.jar
    -xSocket-2.4.6.jar

使用上面的库，我能够连接到 ejabberd 并能够使用我的登录 ID 和密码登录，但是在登录一段时间后，连接会自动关闭，并且正在获取低于堆栈跟踪

Sep 16, 2014 4:36:01 PM org.jivesoftware.smack.XMPPConnection callConnectionClosedOnErrorListener
WARNING: Connection closed with error
java.io.EOFException: no more data available - expected end tag </stream:stream> to close start tag <stream:stream> from line 1, parser stopped on END_TAG seen ...</text></error></iq>... @1:1347
    at org.xmlpull.mxp1.MXParser.fillBuf(MXParser.java:2919)
    at org.xmlpull.mxp1.MXParser.more(MXParser.java:2928)
    at org.xmlpull.mxp1.MXParser.nextImpl(MXParser.java:1112)
    at org.xmlpull.mxp1.MXParser.next(MXParser.java:1061)
    at org.jivesoftware.smack.tcp.PacketReader.parsePackets(PacketReader.java:279)
    at org.jivesoftware.smack.tcp.PacketReader.access$000(PacketReader.java:47)
    at org.jivesoftware.smack.tcp.PacketReader$1.run(PacketReader.java:81)
Sep 16, 2014 4:37:15 PM org.jivesoftware.smack.XMPPConnection callConnectionClosedOnErrorListener
WARNING: Connection closed with error
java.io.EOFException: no more data available - expected end tag </stream:stream> to close start tag <stream:stream> from line 1, parser stopped on END_TAG seen ...</text></error></iq>... @1:1347
    at org.xmlpull.mxp1.MXParser.fillBuf(MXParser.java:2919)
    at org.xmlpull.mxp1.MXParser.more(MXParser.java:2928)
    at org.xmlpull.mxp1.MXParser.nextImpl(MXParser.java:1112)
    at org.xmlpull.mxp1.MXParser.next(MXParser.java:1061)
    at org.jivesoftware.smack.tcp.PacketReader.parsePackets(PacketReader.java:279)
    at org.jivesoftware.smack.tcp.PacketReader.access$000(PacketReader.java:47)
    at org.jivesoftware.smack.tcp.PacketReader$1.run(PacketReader.java:81)

以上消息在我的 eclipse 控制台中不断重复!!!

谁能解释一下

1. 出现上述错误的原因是什么？
2. 如何解决上述错误？

提前致谢!!!

Answer 1

您需要设置心跳(ping)间隔以克服空闲连接超时。超时不一定在应用程序中，它们可以在路径中的路由器/交换机中。在示例中，600 表示 10 分钟。

PingManager.getInstanceFor(connection).setPingInterval(600);