我正在设置连接到XMPP服务器的彗星服务器。下面是它的下降:Java套接字提前过期结束
一个客户机连接与彗星服务器,除其他事项外,一个插座连接打开:
try {
radio = new Socket("server", 5222);
out = new PrintWriter(radio.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(radio.getInputStream()));
} catch (UnknownHostException e) {
System.out.println("Unknown host: "+e);
error = e.toString();
} catch(IOException e) {
System.out.println("IO error: "+e);
error = e.toString();
}
接下来,线程启动,从插座等待数据:
public void run() {
System.out.println("Thread started.");
String data;
String error;
Client remote;
Client client;
while(!done) {
data = this.output();
remote = bayeux.getClient(remoteId);
client = bayeux.getClient(clientId);
if(data!=null) {
Map<String, Object> packet = new HashMap<String, Object>();
packet.put("xml", data);
remote.deliver(client, "/radio/from", packet, null);
}
error = this.error();
if(error!=null) {
Map<String, Object> packet = new HashMap<String, Object>();
packet.put("details", error);
remote.deliver(client, "/radio/error", packet, null);
}
/* try {
Thread.sleep(500);
}
catch (InterruptedException e) {
System.out.println("Interrupted!"); } */
}
try {
in.close();
out.close();
radio.close();
} catch(IOException e) {
System.out.println("Error disconnecting: "+e);
error = e.toString();
}
System.out.println("Thread stopped.");
}
public String output() {
try {
String data = in.readLine();
System.out.println("From: "+data);
if(data==null) {
System.out.println("End of stream!");
try {
Thread.currentThread().sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
//error = "End of stream.";
//this.disconnect();
}
return data;
} catch (IOException e) {
error = e.toString();
System.out.println("IO error! "+e);
}
return null;
}
从客户端接收的任何输入被转发到XMPP服务器:
public void input(String xml) {
System.out.println("To: "+xml);
out.println(xml);
}
所以这里就是问题出现的地方。客户端打开连接并将适当的XML发送到XMPP服务器以启动流。应该如此,直到从服务器收到响应为止,挂起in.readLine();
。一旦收到,in.readLine();
开始返回null,一遍又一遍。这不应该发生;它应该挂起直到它收到数据。服务器似乎不太可能关闭我,它还没有发送</stream:stream>
来表示XMPP流的结束。任何想法可能是什么问题?
谢谢你的帮助!
你说服务器关闭连接不太可能,但为了安全起见,你真的检查过readLine()返回null后radio.isConnected()的返回结果吗? – 2011-02-02 19:15:38
您不仅仅使用BOSH(http://xmpp.org/extensions/xep-0206.html),这太糟糕了,或者您可以使用现成的客户端,服务器或两者兼有的东西。 – 2011-02-02 21:03:56