senddownloadfile_thread.java

局域网p2p文件传输

/*
 * SendDownloadFile_thread.java
 *
 * Created on 2008年4月25日, 下午9:07
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

/**
 *
 * @author 602
 */
import java.io.*;
import java.net.*;

public class SendDownloadFile_thread extends Thread 
{
    /** Creates a new instance of SendDownloadFile_thread */
    String downloadFileName="";
    String downloadFilePath="";

    public SendDownloadFile_thread(String fp,String fn)
    {
       
       downloadFileName=fn;
       downloadFilePath=fp;
    }
    
    public void run()
    {
        while(true)
        {
            try
            {
                ServerSocket server_socket=new ServerSocket(9000);//9000端口用于传输下载文件
                Socket client=server_socket.accept();

                File file=new File(downloadFilePath,downloadFileName);
                FileInputStream fileIn=new FileInputStream(file);

                DataOutputStream out=null;
                out=new DataOutputStream(client.getOutputStream());

                byte[] buf=new byte[4096];
                int num=fileIn.read(buf);
                while(num!=-1)
                {
                   out.write(buf);
                   num=fileIn.read(buf);
                }
                fileIn.close();
		out.close();
            }
            catch(Exception e)
            {
                
//                System.out.println("se");
                break;
            }
        }
    }
}