已经可以实现下载了 如何实现将文件下载到“指定”的目录中去？？（FTP） 急～ 在线等

Question

我自己的代码都只能够实现把文件下载到我所建立的这个JAVA项目中的文件夹里 我不想让他那么死 想灵活一些 让他下载入我指定的文件  如何实现呢？
我是希望能把文件下载到本地计算机指定的目录中去 比如下到“D:/” 
我的下载代码是
     
FtpClient   ftp   =   new   FtpClient(host);   
 ftp.login(username,   password);   
  ftp.binary();   
  ftp.cd(path);                         
                   while((s=dr.readLine())!=null)   {          
                       System.out.println(a(s));                             getfile   =   ftp.get(a(s));         
                            str   =   ftp.getResponseString   ();   
                            System.out.println(str);                         
                                                                     
                            FileOutputStream   output   =   new   FileOutputStream   (new   File   (a(s)));             
                            while(   true   )     
                            {     
                                  int   y   =   getfile.read();                               
                                  if(   y   ==   -1   )   break;     
                                  else     
                                  {   
                                          output.write   ((byte)y);   
                                          output.flush();   
                                  }   
                                                                                
                            }                             
                            getfile.close();   
                            output.close   ();   
}public   static   String   a(String   s)   {       
      String   s1="";   
      StringTokenizer   st=new   StringTokenizer(s,"   ");   
      s1=st.nextToken();   
      
      while(st.hasMoreTokens())   
      { s=st.nextToken(); 
                 }
    if (s1.indexOf("-")!=-1) 
          s2=s ;
    else
         s2 = null;
  
      return  s1.indexOf("-")==-1?"Folder:"+s:"File:"+s;      }

Answer 1

lz,晕呀，
      File file_out = new File(SavePath+FileName);//这里指定路径呀
      FileOutputStream os = new FileOutputStream(file_out);

Answer 2

运行下来还是下载到了项目目录 没有下到目标文件夹～ 
 getfile   =   ftp.get(filename3);         
                            str   =   ftp.getResponseString   ();   
                            System.out.println(str);                         
                               File file_out = new File("D:/"+filename3);
                               FileOutputStream os = new FileOutputStream(file_out);                                       
                         //   FileOutputStream   output   =   new   FileOutputStream   (new   File   (filename3));             
                            while(   true   )     
                            {     
                                  int   y   =   getfile.read();                               
                                  if(   y   ==   -1   )   break;     
                                  else     
                                  {   
                                          os.write ((byte)y);   
                                          os.flush();
                                          //output.flush();   
                                  }   
                                                                                
                            }                             
                            getfile.close();   
                           os.close   ();
楼上帮我看下 我哪里写错了么？

Answer 3

这个是能用的，你编译看看
import sun.net.ftp.*;
import sun.net.*;
import java.io.*;public class FTPServer {
  public static FTPServer instance;  private int Port=21;
  private FTPServer() {
  }
  public static FTPServer getInstance()
  {
     if(instance==null)
       instance=new FTPServer();
      return instance;
  }  public void setPort(int Port)
  {
    this.Port=Port;
  }
  /**
   * Server:FTP服务器地址
   * User:FTP用户
   * Pass:密码
   *
   * */
  public int DownLoadFile(String Server,String User,String Pass,String FileName,String FtpPath,String SavePath)
  {
     int Ret=0; //成功
     String server=Server;
     String user=User;
     String password=Pass;
     String path=FtpPath;     try {
      FtpClient ftpClient = new FtpClient();
      //创建FtpClient对象
      ftpClient.openServer(server,this.Port);
      //连接FTP服务器
      ftpClient.login(user, password);
     //登录FTP服务器
      if (path.length() != 0) ftpClient.cd(path);      //下载一个文件
      ftpClient.binary();      TelnetInputStream is = ftpClient.get(FileName);      File file_out = new File(SavePath+FileName);
      FileOutputStream os = new FileOutputStream(file_out);
      byte[] bytes = new byte[1024];
      int c;
      while ( (c = is.read(bytes)) != -1) {
        os.write(bytes, 0, c);
      }
      is.close();
      os.close();      ftpClient.closeServer(); //退出FTP服务器
    } catch (Exception ex) {
      Ret=-1;
      System.out.println(ex.getMessage());
    }     return Ret;
  }
  
  public static void main(String[] args)
  {
    String server="192.100.100.81";
    String user="anonymous";
    String password="0";
    String path="/xcl";
    String filename="SdFtpBszgxx.TaxBank.13701000000.200602.csv";
    String savePath="e:/";
    getInstance().DownLoadFile(server,user,password,filename,path,savePath);
  }
}