简单的java socket通讯JAVA技术文章

最新推荐文章于 2024-02-10 18:35:44 发布

原创最新推荐文章于 2024-02-10 18:35:44 发布 · 147 阅读

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CC 4.0 BY-SA版权

文章标签：

#java #socket #通讯 #exception #null #string

本文提供了一组使用Java实现的基本Socket通信程序示例，包括服务器端和服务端客户端两部分。服务器端监听3434端口接收消息并响应，客户端连接至指定IP及端口进行双向消息传递。

/**
class:SocketTest_SvrClit
author:chengyun
date:
with:to test socket---server program;
**/

import java.net.*;
import java.io.*;

public class SocketTest_Server
{
	   public static void main(String[] args) throws UnknownHostException,IOException,ConnectException
	   {
	   	   ServerSocket aServerSocket=new ServerSocket(3434);
	   	   Socket aServer=null;
	   	   try
	   	   {
	   	   	   aServer=aServerSocket.accept();
	   	   	   try
	   	   	   {
	   	   	   	  BufferedReader input=new BufferedReader(new InputStreamReader(System.in));
	   	   	   	  BufferedReader in=new BufferedReader(new InputStreamReader(aServer.getInputStream()));
	   	   	   	  PrintWriter out=new PrintWriter(new OutputStreamWriter(aServer.getOutputStream()));
	   	   	   	  
	   	   	   	  String serverstring=null;
	   	   	   	  String clientstring=null;
	   	   	   	  System.out.println("hello! enter the bye to exit.");
	   	   	   	  System.out.print("Server:wait client");
	   	   	   	  serverstring=input.readLine();
	   	   	   	  boolean done=false;
	   	   	   	  while(!done)
	   	   	   	  {
	   	   	   	  	  if(serverstring !=null)
	   	   	   	  	  {
	   	   	   	  	  	  out.println(serverstring);
	   	   	   	  	  	  out.flush();
	   	   	   	  	  }
	   	   	   	  	  clientstring=in.readLine();
	   	   	   	  	  if(clientstring !=null)
	   	   	   	  	     System.out.println("client:"+clientstring);
	   	   	   	  	  System.out.print("server:");
	   	   	   	  	  serverstring=input.readLine();
	   	   	   	  	  if(serverstring.equals("bye")) done=true;
	   	   	   	  }
	   	   	   }
	   	   	   catch(Exception e)
	   	   	   {
	   	   	   	 System.out.println(e.getMessage());
	   	   	   }
	   	   	   finally
	   	   	   {
	   	   	   	  aServer.close();
	   	   	   } 
	   	   	   
	   	   }
	   	   catch(Exception e)
	   	   {
	   	   	  System.out.println(e.getMessage());
	   	   }
	   	   finally
	   	   {
	   	   	   aServerSocket.close();
	   	   }

	   }
}


/**
class:SocketTest_SvrClit
author:chengyun
date:
with:to test socket---client program;
**/

import java.net.*;
import java.io.*;


public class SocketTest_SvrClit
{
	   public static void main(String[] args) throws UnknownHostException,IOException,ConnectException
	   {
	   	   Socket aClient=null;
	   	   aClient=new Socket("192.168.0.8",3434);  //InetAddress.getLocalHost()
	   	   try
	   	   {
	   	   	   BufferedReader input=new BufferedReader(new InputStreamReader(System.in));
	   	   	   BufferedReader in=new BufferedReader(new InputStreamReader(aClient.getInputStream()));
	   	   	   PrintWriter out=new PrintWriter(new OutputStreamWriter(aClient.getOutputStream()));
	   	   	   
	   	   	   String clientString=null;
	   	   	   String serverString=null;
	   	   	   System.out.println("hello!enter bye to exit.");
	   	   	   boolean done=false;
	   	   	   while(!done)
	   	   	   {
	   	   	   	   serverString=in.readLine();
	   	   	   	   if(serverString !=null)
	   	   	   	      System.out.println("Server:"+serverString);
	   	   	   	   System.out.print("client:");
	   	   	   	   clientString=input.readLine();
	   	   	   	   if(clientString.equals("bye")) done=true;
	   	   	   	   if(clientString !=null)   
	   	   	   	   {
	   	   	   	   	   out.println(clientString);
	   	   	   	   	   out.flush();
	   	   	   	   }   
	   	   	   }
	   	   	   in.close();
	   	   	   out.close();
	   	   }
	   	   catch(Exception e)
	   	   {
	   	   	   System.out.println(e.getMessage());
	   	   }
	   	   finally
	   	   {
	   	   	   aClient.close();
	   	   }
	   }	
}