catch(UnknownHostException e) { e.printStackTrace(); }catch(IOException e){ e.printStackTrace(); } } /** * 读数据线程 */ public void run() { while(true){ //---------读数据--------------------------- close = isServerClose(socket);//判断是否断开 if(!close){//没有断开,开始读数据 String readtext = ReadText(socket); if(readtext!=null && readtext.trim().length()>0){ System.out.println("读取数据:"+readtext); } } //---------创建连接------------------------- while(close){//已经断开,重新建立连接 try{ System.out.println("重新建立连接:"+getIp()+":"+getPort()); InetAddress address = InetAddress.getByName(getIp()); socket = new Socket(address,getPort()); socket.setKeepAlive(true); socket.setSoTimeout(sotimeout); close = !Send(socket,"2"); System.out.println("建立连接成功:"+getIp()+":"+getPort()); }catch(Exception se){ System.out.println("创建连接失败:"+getIp()+":"+getPort()); close=true; } } } } /** * 发送数据,发送失败返回false,发送成功返回true * @param csocket * @param message * @return */ public Boolean Send(Socket csocket,String message){ try{ PrintWriter out = new PrintWriter(socket.getOutputStream(), true); out.println(message); return true; }catch(Exception se){ se.printStackTrace(); return false; } } /** * 读取数据,返回字符串类型 * @param csocket * @return */ public String ReadText(Socket csocket){ try{ csocket.setSoTimeout(sotimeout); InputStream input = csocket.getInputStream(); BufferedReader in = new BufferedReader(new InputStreamReader(input)); char[] sn = new char[1000]; in.read(sn); String sc = new String(sn); return sc; }catch(IOException se){ return null; } } /** * 判断是否断开连接,断开返回true,没有返回false * @param socket * @return */public Boolean isServerClose(Socket socket){ try{ socket.sendUrgentData(0xFF);//发送1个字节的紧急数据,默认情况下,服务器端没有开启紧急数据处理,不影响正常通信 return false; }catch(Exception se){ return true; } }/** * 测试 * @param ags */ public static void main(String[] ags){ Nksocket nksocket = new Nksocket("127.0.0.1",8090); nksocket.start(); } //------------------------------------------------------------------------------ public String getIp() { return ip; } public void setIp(String ip) { this.ip = ip; } public Integer getPort() { return port; } public void setPort(Integer port) { this.port = port; } }