ftp.java

《Java程序设计与应用》-张仕斌-源程序 《Java程序设计与应用》-张仕斌-源程序

//Ftp.java
import java.io.*;
import sun.net.ftp.*;
import sun.net.*;
import java.util.*;

    
public   class   Ftp   {   
    private   static String   host   =   "localhost";     
    private   static String   userID   =   "Anonymous";    
    private   static String   password   =   "[e-mail]";    
    private   static String   directory   =   "/";    
    
    public   static   void   main(String[]   args)   {   
        try   {   
            FtpClient   ftpClient   =   new   FtpClient();   
            ftpClient.openServer(host);   //   connect   to   FTP   server   
            ftpClient.login(userID,   password);   //   login   
            ftpClient.binary();   //   set   to   binary   mode   transfer   
            ftpClient.cd(directory);   //   change   directory   
            
            BufferedReader   dr   =   new   BufferedReader(new   InputStreamReader(ftpClient.list()));   
  					int   readCount;   
  					String   s="";   
  					while((s=dr.readLine())!=null)   {   
  						System.out.println(a(s));   
  					}   
  					
  					String   fileName   =   "Tcpview.exe";   
    				File   file   =   new   File(fileName);   
    				InputStream   in   =   ftpClient.get(fileName);   
    				OutputStream   out   =   new   FileOutputStream(file);   
    				int   r   =   0;   
    				while   ((r   =   in.read())   !=   -1   )   {   
            	out.write(r);   
            }
  					
  			}catch(Exception e) {}   
  	}
    
  	public   static   String   a(String   s)   {   
      String   s1="";   
      StringTokenizer   st=new   StringTokenizer(s,"   ");   
      s1=st.nextToken();   
      while(st.hasMoreTokens())   
          s1 += "\t" + st.nextToken();   
      return s1;
      //return   s1.indexOf("-")==-1?"Folder:"+s:"File:"+s;   
  }   
  }