Java Socket BIO多线程 (beta1)

Java Socket BIO多线程 (beta1)

在BIO的基础上已经不能满足我的需求，所以讲BIO的Socket改为之BIO多线程

封装的服务器代码

• 封装类(SocketServer),并加了线程池

  package com.server;
  
  
  
  import java.io.*;
  import java.net.*;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  
  public class SocketServer {
      //创建一个线程池
      ExecutorService executorService = Executors.newFixedThreadPool(100);
      //private String host;
      private int port;
      //private Socket socket;
      ServerSocket server;
      //Map socketThreadMap;
      List<SocketThread> threads = new ArrayList<>();
      int count = 0;
      public SocketServer(int port)
      {
          //this.host = host;
          this.port = port;
  
  
      }
      public  void Connect() throws IOException {
          server = new ServerSocket(port);
  
  
      }
      public void Listener() throws IOException
      {
          while (true)
          {
  
                  System.out.println("Start socket wait......");
                  Socket socket = server.accept();
                  //启动线程
                  SocketThread socketThread = new SocketThread(socket);
                  count++;
                  socketThread.setName("Thread" + count);
                  executorService.submit(socketThread);
                  //自己定义的线程保存会造成阻塞
                  System.out.println("Bottom:" + count);
  
                  threads.add(socketThread);
  
                  System.out.println("listcount:" + threads.size());
  
  
  
          }
      }
      public void  SendMsg(String data)
      {
  
      }
  
      public  void Close() throws IOException
      {
          //executorService.
          for (SocketThread item:threads) {
              item.Close();
          }
          server.close();
      }
  
  
  
  }
  
  

• 线程类

  package com.server;
  
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.net.Inet4Address;
  import java.net.InetAddress;
  import java.net.Socket;
  import java.net.SocketException;
  
  public class SocketThread extends Thread{
      private Socket socket;
      private  int byteLength = 1024;
      private InputStream inputStream;
      public SocketThread(Socket socket)
      {
          this.socket = socket;
          try{
              this.socket.setKeepAlive(true);
              System.out.println("Client:" + this.socket.getInetAddress() + " Connected!");
          }catch (SocketException e){
              e.printStackTrace();
          }
  
      }
  
      @Override
      public void run() {
          try {
              while (true)
              {
                  if(!socket.isClosed())
                  {
  
                          System.out.println(getName() + ":wait to read data!");
                          inputStream = socket.getInputStream();
  
                          byte[] bytes = new byte[byteLength];
  
                          int len = inputStream.read(bytes);
                          StringBuilder sb = new StringBuilder();
                          if(len > 0){
  
                              sb.append(new String(bytes,0,len));
                          }
                          System.out.println(getName() + " get data from:" +sb);
                          //inputStream.close();//这里调用会主动断开与客户端的连接
  
  
  
                  }
  
  
              }
          }catch (IOException e)
          {
              System.out.println(e.toString());
              e.printStackTrace();
  
          }
          Close();
  
      }
  
      public void Close()
      {
          try {
              inputStream.close();
              socket.close();
  
          }catch (IOException e)
          {
              System.out.println(e.toString());
          }
  
      }
  
  
  }
  
  

• 主函数调用测试

  import com.server.SocketServer;
  
  import java.io.IOException;
  
  public class Main {
      public static void main(String[] args) {
          SocketServer server =new SocketServer(888);
          try{
              server.Connect();
              server.Listener();
              server.Close();
          }catch (IOException e){
              System.out.println(e.toString());
          } finally {
              return;
          }
  
      }
  }
  
  

测试

开了一个SocketTool2（需要的自己网上下载），创建了多个客户端去连接服务器，可以同时发送信息，这些信息都会显示

BUG

• 线程优雅关闭
• 资源释放为解决