java web 项目启动开启 socket server 作者：Mchange

web.xml中配置监听

 <listener>
   <listener-class>com.ainong.socket.server.SocketServiceLoaderlistener-class>
 listener>

监听类

 import javax.servlet.ServletContext;
 import javax.servlet.ServletContextEvent;
 import javax.servlet.ServletContextListener;

 /**
  * 将socket service随tomcat启动
  * @author zhangzhongwen
  *
  */
 public class SocketServiceLoader implements ServletContextListener{
     //socket server 线程
     private SocketThread socketThread;

     @Override
     public void contextDestroyed(ServletContextEvent arg0) {
         if(null!=socketThread && !socketThread.isInterrupted())
            {
             socketThread.closeSocketServer();
             socketThread.interrupt();
            }
     }

     @Override
     public void contextInitialized(ServletContextEvent arg0) {
         // TODO Auto-generated method stub
         if(null==socketThread)
         {
          //新建线程类
          socketThread=new SocketThread(null);
          //启动线程
          socketThread.start();
         }
     }

 }

生产socket线程类：

 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.io.PrintWriter;
 import java.net.ServerSocket;
 import java.net.Socket;

 import javax.servlet.ServletContext;

 /**
  * socket 线程类
  * @author zhangzhongwen
  *
  */
 public class SocketThread extends Thread{
     private ServerSocket serverSocket = null;

     public SocketThread(ServerSocket serverScoket){
         try {
             if(null == serverSocket){
                 this.serverSocket = new ServerSocket(8877);
                 System.out.println("socket start");
             }
         } catch (Exception e) {
             System.out.println("SocketThread创建socket服务出错");
             e.printStackTrace();
         }

     }

     public void run(){
         while(!this.isInterrupted()){
             try {
                 Socket socket = serverSocket.accept();

                 if(null != socket && !socket.isClosed()){
                     //处理接受的数据
                     new SocketOperate(socket).start();
                 }
                 socket.setSoTimeout(30000);

             }catch (Exception e) {
                 e.printStackTrace();
             }
         }
     }


     public void closeSocketServer(){
        try {
             if(null!=serverSocket && !serverSocket.isClosed())
             {
              serverSocket.close();
             }
        } catch (IOException e) {
         // TODO Auto-generated catch block
         e.printStackTrace();
        }
      }







 }

处理客户端发送报文的类

 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.PrintWriter;
 import java.net.Socket;

 import javax.servlet.ServletContext;

 /**
  * 多线程处理socket接收的数据
  * @author zhangzhongwen
  *
  */
 public class SocketOperate extends Thread{
      private Socket socket;

      public SocketOperate(Socket socket) {
         this.socket=socket;
      }
      @SuppressWarnings("unused")
     public void run()
      {
          try{

                 InputStream in= socket.getInputStream();

                 PrintWriter out=new PrintWriter(socket.getOutputStream());

                 //BufferedReader wt = new BufferedReader(new InputStreamReader(System.in));

                 while(true){
                     //读取客户端发送的信息
                     String strXML = "";
                     byte[] temp = new byte[1024];
                     int  length = 0;
                     while((length = in.read(temp)) != -1){
                         strXML += new String(temp,0,length);
                     }
                     if("end".equals(strXML)){
                         System.out.println("准备关闭socket");
                         break;
                     }
                     if("".equals(strXML))
                         continue;

                     System.out.println("客户端发来："+strXML.toString());

                     MethodHandler mh = new MethodHandler(ReadXML.readXML(strXML.toString()));
                     String resultXML = mh.getResultXML();
                     System.out.println("返回："+resultXML.toString());


                     if(!"".equals(resultXML)){
                         out.print(resultXML);
                         out.flush();
                         out.close();
                     }


                 }
                 socket.close();
                 System.out.println("socket stop.....");

             }catch(IOException ex){

             }finally{

             }
      }
 }