現編這個就是個多執行緒伺服器，只要在client不釋放連線，伺服器端的run裡邊寫while（TRUE）迴圈，那麼就可以長期連線。class ConnectionThread extends Thread{Socket client;int counter;public ConnectionThread(Socket cl,int c){client = cl;counter= c;} @Overridepublic void run(){ try{ String destIP=client.getInetAddress().toString(); int destport =client.getPort(); PrintStream outstream=new PrintStream(client.getOutputStream()); DataInputStream instream=new DataInputStream(client.getInputStream()); String inline=instream.readLine();}//trycatch(IOException e){System.out.println(e);}}//run