java长连接socket【转】http://jiewo.iteye.com/blog/1562168

java socket 长连接

博客分类：

 
• java

socketjavathread 

最近做SSO的项目,其中用到了socket长连接.一直都是看代码的,但是要求socket做成SSL的,不得不动手写写代码了.下面我给出一个简单的socket长连接.

SocketClient.java

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Reader;
import java.net.Socket;
import java.net.UnknownHostException;
import java.nio.CharBuffer;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;

/*{  user:jiangwh }*/

public class SocketClient {

    public static final Object locked = new Object();
    public static final BlockingQueue<String> queue = new ArrayBlockingQueue<String>(
            1024 * 100);

    class SendThread extends Thread{
        private Socket socket;
        public SendThread(Socket socket) {
            this.socket = socket;
        }
        @Override
        public void run() {
            while(true){
                try {
                    String send = getSend();
                    PrintWriter pw = new PrintWriter(new OutputStreamWriter(socket.getOutputStream()));
                    pw.write(send);
                    pw.flush();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        public String getSend() throws InterruptedException{
            Thread.sleep(1000);
            return "<SOAP-ENV:Envelope>"+System.currentTimeMillis()+"</SOAP-ENV:Envelope>";
        }
    }

    class ReceiveThread extends Thread{
        private Socket socket;

        public ReceiveThread(Socket socket) {
            this.socket = socket;
        }

        @Override
        public void run() {
            while(true){
                try {
                    Reader reader = new InputStreamReader(socket.getInputStream());
                    CharBuffer charBuffer = CharBuffer.allocate(8192);
                    int index = -1;
                    while((index=reader.read(charBuffer))!=-1){
                        charBuffer.flip();
                        System.out.println("client:"+charBuffer.toString());
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public void start() throws UnknownHostException, IOException{
        Socket socket = new Socket("10.10.148.40",18889);
        new SendThread(socket).start();
        new ReceiveThread(socket).start();
    }
    public static void main(String[] args) throws UnknownHostException, IOException {
        new SocketClient().start();
    }
}

SocketServer.java

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Reader;
import java.io.Writer;
import java.net.ServerSocket;
import java.net.Socket;
import java.nio.CharBuffer;
import java.util.Date;

/*{user:jiangwh }*/

public class SocketServer {

    private final static String SOAP_BEGIN = "<SOAP-ENV:Envelope";
    private final static String SOAP_END = "</SOAP-ENV:Envelope>";

    public static void main(String[] args) throws IOException {
        SocketServer socketServer = new SocketServer();
        socketServer.start();
    }

    public void start() throws IOException {
        ServerSocket serverSocket = new ServerSocket(18889);
        while (true) {
            Socket socket = serverSocket.accept();
            new SocketThread(socket).start();
        }
    }

    class SocketThread extends Thread {
        private Socket socket;
        private String temp;

        public Socket getSocket() {
            return socket;
        }

        public void setSocket(Socket socket) {
            this.socket = socket;
        }

        public SocketThread(Socket socket) {
            this.socket = socket;
        }

        public void run() {
            try {
                Reader reader = new InputStreamReader(socket.getInputStream());
                Writer writer = new PrintWriter(new OutputStreamWriter(socket
                        .getOutputStream(), "GBK"));
                CharBuffer charBuffer = CharBuffer.allocate(8192);
                int readIndex = -1;
                while ((readIndex = reader.read(charBuffer)) != -1) {
                    charBuffer.flip();
                    temp += charBuffer.toString();
                    if (temp.indexOf(SOAP_BEGIN) != -1
                            && temp.indexOf(SOAP_END) != -1) {
                        // 传送一个soap报文
                        System.out.println(new Date().toLocaleString()+"server:"+temp);
                        temp="";
                        writer.write("receive the soap message");
                        writer.flush();
                    } else if (temp.indexOf(SOAP_BEGIN) != -1) {
                        // 包含开始，但不包含
                        temp = temp.substring(temp.indexOf(SOAP_BEGIN));
                    }
                    if (temp.length() > 1024 * 16) {
                        break;
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                if (socket != null) {
                    if (!socket.isClosed()) {
                        try {
                            socket.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }

        }
    }
}