java语言

javasocket服务端技巧

时间:2023-03-27 14:41:52 java语言 我要投稿
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javasocket服务端技巧

  Java的主要工作是通过编程语言来制作互联网页面、制作动态效果以及网站等技术,以下是小编为大家搜索整理的javasocket服务端技巧,欢迎阅读!更多精彩内容请及时关注我们应届毕业生考试网!

  如下的GreetingServer 程序是一个服务器端应用程序,使用Socket来监听一个指定的端口。

  // 文件名 GreetingServer.java

  import java.net.*;

  import java.io.*;

  public class GreetingServer extends Thread

  {

  private ServerSocket serverSocket;

  public GreetingServer(int port) throws IOException

  {

  serverSocket = new ServerSocket(port);

  serverSocket.setSoTimeout(10000);

  }

  public void run()

  {

  while(true)

  {

  try

  {

  System.out.println("Waiting for client on port " +

  serverSocket.getLocalPort() + "...");

  Socket server = serverSocket.accept();

  System.out.println("Just connected to "

  + server.getRemoteSocketAddress());

  DataInputStream in =

  new DataInputStream(server.getInputStream());

  System.out.println(in.readUTF());

  DataOutputStream out =

  new DataOutputStream(server.getOutputStream());

  out.writeUTF("Thank you for connecting to "

  + server.getLocalSocketAddress() + "\nGoodbye!");

  server.close();

  }catch(SocketTimeoutException s)

  {

  System.out.println("Socket timed out!");

  break;

  }catch(IOException e)

  {

  e.printStackTrace();

  break;

  }

  }

  }

  public static void main(String [] args)

  {

  int port = Integer.parseInt(args[0]);

  try

  {

  Thread t = new GreetingServer(port);

  t.start();

  }catch(IOException e)

  {

  e.printStackTrace();

  }

  }

  }

  编译以上 java 代码,并执行以下命令来启动服务,使用端口号为 6066:

  $ java GreetingServer 6066

  Waiting for client on port 6066...

  像下面一样开启客户端:

  $ java GreetingClient localhost 6066

  Connecting to localhost on port 6066

  Just connected to localhost/127.0.0.1:6066

  Server says Thank you for connecting to /127.0.0.1:6066

  Goodbye!

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