jptest2.java

这个程序实现了在网络上截获邮件数据并还原邮件。仅供学习参考

import jpcap.*;
import java.io.*;
import java.util.*;

public class jptest2 implements JpcapHandler
  {
    public void handlePacket(Packet packet)
     {
       System.out.println(packet);
       try{
         File write = new File("e:/test/IPPacket.txt"); 
         BufferedWriter bw = new BufferedWriter( new FileWriter(write)); 
         bw.write(temp + "\r\n");
         bw.close();
         } 
       catch(FileNotFoundException e){ //文件未找到 
         System.out.println (e); 
         }
       catch(IOException e){ 
         System.out.println (e); 
         } 
     } 
  }
 
    public static void main(String[] args) throws java.io.IOException
      {
        String[] lists=Jpcap.getDeviceDescription();
        System.out.println("Start capturing on "+lists[0]);

        Jpcap jpcap=Jpcap.openDevice(Jpcap.getDeviceList()[0],1028,true,20);
        jpcap.loopPacket(-1,new jptest());
      }
  }