学习笔记_TCP编程，服务端

最新推荐文章于 2025-11-29 13:01:36 发布

转载最新推荐文章于 2025-11-29 13:01:36 发布 · 231 阅读

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原文链接：http://www.cnblogs.com/BrokenSwitch/p/9891395.html

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#网络

本文介绍了一种使用Java实现启动TCP服务的方法。通过创建ServerSocket监听特定端口，并为每个连接创建新的线程来处理客户端请求。文章展示了如何设置Socket超时、读取和响应客户端数据。

public void startTcpService(String ip) {

     try {
            InetAddress ipAddress = InetAddress.getByName(ip);
            tcpServer = new ServerSocket(TCP_SERVER_PORT, 0, ipAddress);
            tcpServer.setSoTimeout(1000);
            SocketHandler handler = new SocketHandler();
            new Thread(handler).start();
        }
        catch (Exception e) {
            logger.info("Start tcp service failed. ip = " + ip + ",port=" + TCP_SERVER_PORT, e);
        }

        logger.info("Start tcp service on port, ip = " + ip + ",port=" + TCP_SERVER_PORT);
    }

    class SocketHandler implements Runnable {

        @Override
        public void run() {
            while (true) {
                Socket sock = null;
                try {
                    sock = tcpServer.accept();
                    sock.setSoTimeout(490);

                    MyTcpSocket mySockThread = new MyTcpSocket(sock);
                    Thread thread = new Thread(pmSockThread);
                    thread.start();
                }
                catch (SocketTimeoutException e) {
                    // do nothing
                }
                catch (Exception e1) {
                    logger.info("Init sockt failed. ip=" + ip , e1);
                }

            }
        }

    }

public class MyTcpSocket implements Runnable {

    private static DebugLog logger ;
//Socket连接
    private Socket sock = null;

    //接收数据缓冲区
    private byte[] dataBuffer = new byte[10240];

    //接收数据缓冲区长度
    private int dataLen = 0;
public MyTcpSocket(Socket sock) {
        logger.info("New Tcp socket inited.");
        this.sock = sock;
    }

    @Override
    public void run() {
        try {
            int bufLen = 1024;
            InputStream inStream = sock.getInputStream();
            OutputStream outStream = sock.getOutputStream();
            buildlinkConnect(outStream);

            byte recvBuf[] = new byte[bufLen];
            int len = 0;
            while (true) {
                try {
                    len = inStream.read(recvBuf, 0, bufLen);
                    printlnFromBytes("recv", recvBuf, len);
            
                }
                catch (SocketTimeoutException e1) {
                    len = 0;
                }

                if (len > 0 && recvBuf != null) {
                    outStream.write("response");
                }

            }
        }
        catch (Exception e) {

        }
        finally {
            closeSocket();
        }
    }