Java Socket NIO (beta1)

Java Socket NIO (beta1)

在NIO的基礎上已經不能滿足我的需求，所以講BIO的Socket改爲之NIOBIO地址

封裝的服務器代碼

• 封裝類(SocketServer),並加了線程池

  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 {
      //創建一個線程池
      ExecutorService executorService = Executors.newFixedThreadPool(100);
      //private String host;
      private int port;
      //private Socket socket;
      ServerSocket server;
      //Map<Integer,SocketThread> 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();
                  //啓動線程
                  SocketThread socketThread = new SocketThread(socket);
                  count++;
                  socketThread.setName("Thread" + count);
                  executorService.submit(socketThread);
                  //自己定義的線程保存會造成阻塞
                  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();
      }
  
  
  
  }
  
  

• 線程類

  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();//這裏調用會主動斷開與客戶端的連接
  
  
  
                  }
  
  
              }
          }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());
          }
  
      }
  
  
  }
  
  

• 主函數調用測試

  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;
          }
  
      }
  }
  
  

測試

開了一個SocketTool2（需要的自己網上下載），創建了多個客戶端去連接服務器，可以同時發送信息，這些信息都會顯示

BUG

• 線程優雅關閉
• 資源釋放爲解決