Web Socket 长连接

package com.kinth;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
public class ServerSocketThread extends Thread {
	 private Socket socket;

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

	    @Override
	    public void run() {
	        InputStream is = null;
	        InputStreamReader isr = null;
	        BufferedReader br = null;
	        OutputStream os = null;
	        PrintWriter pw = null;
	        try {
	        	
	        	
	            // socket获取字节输入流
	            is = socket.getInputStream();
	            // 将字节输入流转字符输入流
	            isr = new InputStreamReader(is,"GB2312");
	            // 将字符输入流转行输入流
	            br = new BufferedReader(isr); //
	            String message = "";  
	            while(!(message=br.readLine()).equals("bye")){
	            	System.out.println(message);
	            }
	            
	          /*  while(br.readLine()!=null) {  
	            	message=line;
	                System.out.println(" 客户端发来告警异常消息： "+message);   
	                message="";
	           }*/
	            

	            
	            // 必须先关闭输入流才能获取下面的输出流
	           // socket.shutdownInput();
	            // 获取输出流
	            os = socket.getOutputStream();
	            pw = new PrintWriter(os);
	            pw.write("欢饮您进入socket");
	            pw.flush();
	            // 关闭输入流
	            //socket.shutdownOutput();
	        } catch (Exception e) {
	            e.printStackTrace();
	        } finally {
	           /* // 关闭资源
	            if (pw != null) {
	                pw.close();
	            }
	            try {
	                if (br != null) {
	                    br.close();
	                }
	            } catch (IOException e) {
	                e.printStackTrace();
	            }
	            try {
	                if (isr != null) {
	                    isr.close();
	                }
	            } catch (IOException e) {
	                e.printStackTrace();
	            }
	            try {
	                if (os != null) {
	                    os.close();
	                }
	            } catch (IOException e) {
	                e.printStackTrace();
	            }*/
	          
	        }
	    }
}

package com.kinth;

import java.io.IOException;
import java.net.ServerSocket;

public class Socket {

	
	private static ServerSocket SERVER_SOCKET =null;;
    
    static{
        try {
            SERVER_SOCKET = new ServerSocket(9773);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try {
            System.out.println("******服务器已启动，---等待客户端连接*****");
            java.net.Socket socket = null;
            while(true){
                //循环监听客户端的连接
                socket = SERVER_SOCKET.accept();
                //新建一个线程ServerSocket，并开启
                new ServerSocketThread(socket).start();
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally{
        	try {
				if(SERVER_SOCKET != null){
					SERVER_SOCKET.close();
				}
			} catch (Exception e2) {
				e2.printStackTrace();
			}
        }

	}

}

package com.kinth;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;

/**
 * <p>
 * 基于socket通讯-客户端
 * <p>
 * 
 * @author <a href="mailto:yangkj@corp.21cn.com">yangkj</a>
 * @version
 * @since 2017年1月12日
 */
public class Client {

    public static void main(String[] args) {

        Socket socket = null;
        OutputStream os = null;
        PrintWriter pw = null;
        InputStream is = null;
        InputStreamReader isr = null;
        BufferedReader br = null;
        try {
            socket = new Socket("127.0.0.1", 9773);
            // 获取输出流向服务端写入数据
            os = socket.getOutputStream();
            pw = new PrintWriter(os);
            pw.write("kiadgf 1221 agdfnth");
            pw.flush();
            socket.shutdownOutput();
            // 获取输入流接受服务端返回的信息
            is = socket.getInputStream();
            isr = new InputStreamReader(is);
            br = new BufferedReader(isr);
            String message = null;
            while ((message = br.readLine()) != null) {
                System.out.println("服务器说：" + message);
            }
            socket.shutdownInput();

        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (br != null) {
                    br.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
            try {
                if (isr != null) {
                    isr.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
            try {
                if (is != null) {
                    is.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (pw != null) {
                pw.close();
            }
            try {
                if (os != null) {
                    os.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
            try {
                if (socket != null) {
                    socket.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}