在asmack中重新连接

Question

我在Android上有一个项目，需要使用asmack库来实现实时聊天。

关键功能是重新连接机制，这意味着我的应用程序可以在互联网连接丢失时自动重新连接。

这是我的代码片段：

ConnectionConfiguration connConfig = new ConnectionConfiguration(HOST, PORT);
connConfig.setSASLAuthenticationEnabled(true);
connConfig.setReconnectionAllowed(true);
XMPPConnection connection = new XMPPConnection(connConfig);

但是每当我关闭然后打开Wifi时我就会收到此错误：

10-01 21:43:26.942: W/System.err(13695): javax.net.ssl.SSLException: Write error: ssl=0x5a4ad348: I/O error during system call, Broken pipe
10-01 21:43:27.002: W/System.err(13695):    at org.apache.harmony.xnet.provider.jsse.NativeCrypto.SSL_write(Native Method)
10-01 21:43:27.012: W/System.err(13695):    at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl$SSLOutputStream.write(OpenSSLSocketImpl.java:693)
10-01 21:43:27.012: W/System.err(13695):    at java.io.OutputStreamWriter.flushBytes(OutputStreamWriter.java:167)
10-01 21:43:27.012: W/System.err(13695):    at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:158)
10-01 21:43:27.012: W/System.err(13695):    at java.io.BufferedWriter.flush(BufferedWriter.java:124)
10-01 21:43:27.012: W/System.err(13695):    at org.jivesoftware.smack.PacketWriter.writePackets(PacketWriter.java:210)
10-01 21:43:27.012: W/System.err(13695):    at org.jivesoftware.smack.PacketWriter.access$000(PacketWriter.java:42)
10-01 21:43:27.012: W/System.err(13695):    at org.jivesoftware.smack.PacketWriter$1.run(PacketWriter.java:78)
10-01 21:43:27.092: W/System.err(13695): javax.net.ssl.SSLException: Read error: ssl=0x5a4ad348: I/O error during system call, Connection timed out
10-01 21:43:27.092: W/System.err(13695):    at org.apache.harmony.xnet.provider.jsse.NativeCrypto.SSL_read(Native Method)
10-01 21:43:27.092: W/System.err(13695):    at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl$SSLInputStream.read(OpenSSLSocketImpl.java:651)
10-01 21:43:27.092: W/System.err(13695):    at java.io.InputStreamReader.read(InputStreamReader.java:244)
10-01 21:43:27.092: W/System.err(13695):    at java.io.BufferedReader.read(BufferedReader.java:310)
10-01 21:43:27.092: W/System.err(13695):    at org.kxml2.io.KXmlParser.fillBuffer(KXmlParser.java:1496)
10-01 21:43:27.092: W/System.err(13695):    at org.kxml2.io.KXmlParser.peekType(KXmlParser.java:979)
10-01 21:43:27.092: W/System.err(13695):    at org.kxml2.io.KXmlParser.next(KXmlParser.java:346)
10-01 21:43:27.092: W/System.err(13695):    at org.kxml2.io.KXmlParser.next(KXmlParser.java:310)
10-01 21:43:27.092: W/System.err(13695):    at org.jivesoftware.smack.PacketReader.parsePackets(PacketReader.java:326)
10-01 21:43:27.092: W/System.err(13695):    at org.jivesoftware.smack.PacketReader.access$000(PacketReader.java:44)
10-01 21:43:27.092: W/System.err(13695):    at org.jivesoftware.smack.PacketReader$1.run(PacketReader.java:71)

谁能解决这个错误，请帮助我！

Answer 1

使用最新的smack api - 我正在使用4.1.0

然后设置如下所示的重新连接：

ReconnectionManager manager = ReconnectionManager.getInstanceFor(connection);
manager.enableAutomaticReconnection();

它将按照此处所述自动重新连接

Answer 2

Asmack正在支持重新连接，唯一的问题是你正在使用SASL Connection，所以这给出了问题，因为你在Wi-Fi关闭时再次尝试相同的连接。尝试使用set SASL false

connConfig.setSASLAuthenticationEnabled(false);

手动要求其他明智的断开

connection.disconnect();

Answer 3

在开始时设置所有内容时，请致电

ReconnectionManager.setEnabledPerDefault(true);

然后，从那时起创建的连接将自动重新连接。

Answer 4

不要使用在ASMACK中实现的重新连接机制。

使用：

    connConfig.setReconnectionAllowed(false);

相反，您应该创建侦听ConnectivityManager.CONNECTIVITY_ACTION的 BroadcastReceiver。 当发生与WIFI或其他网络的连接时，您将在BroadcastReceiver中收到回传onReceive 。