如何使用android列出ftp目录？

Question

[已解决]如何获取我的FTP服务器上的文件和文件夹列表？

我知道如何连接和上传文件，但不知道如何获得目录列表：

  try { 
       FTPClient ftpClient = new FTPClient(); 
       ftpClient.connect(InetAddress.getByName("176.28.25.46")); 
       ftpClient.login("******", "******"); 
       System.out.println("status :: " + ftpClient.getStatus()); 

       ftpClient.setFileType(FTP.BINARY_FILE_TYPE); 
       ftpClient.enterLocalPassiveMode(); 

       // Prepare file to be uploaded to FTP Server 
       File file = new File("default.prop"); 
       FileInputStream ifile = new FileInputStream(file); 

       // Upload file to FTP Server 
       ftpClient.storeFile("/subdomains/giveyourapps/httpdocs/apps/default.prop",ifile); 
       ftpClient.disconnect(); 

      } catch (Exception e) { 
       e.printStackTrace(); 
      } 

但每次剪断的代码，我在谷歌找到了我没有工作： -/

  try { 

       FTPClient ftpClient = new FTPClient(); 
       ftpClient.connect(InetAddress.getByName("176.28.25.46")); 
       ftpClient.login("******", "******"); 
       System.out.println("status :: " + ftpClient.getStatus()); 

       String toppath = new String(); 
       FTPFile[] ftpDirs = ftpClient.listDirectories(); 
       for (int i = 0; i < ftpDirs.length; i++) { 
        toppath = ftpDirs[0].getName(); 
        Log.d("CONNECT", "Directories in the ftp server are " 
          + ftpDirs[i].getName()); 
       } 

       FTPFile[] ftpdirs2 = ftpClient.listFiles(toppath); 
       for (int i = 0; i < ftpdirs2.length; i++) { 
        Log.d("CONNECT", 
          "File i need is " + ftpdirs2[i].getName()); 
       } 

      } 

对于每个人都有同样的问题。现在它与代码：（感谢user1106888）

  try { 

       FTPClient ftpClient = new FTPClient(); 
       ftpClient.connect(InetAddress.getByName("176.28.25.46")); 
       ftpClient.login("******", "******"); 
       System.out.println("status :: " + ftpClient.getStatus()); 
       ftpClient.setFileType(FTP.BINARY_FILE_TYPE); 
       ftpClient.enterLocalPassiveMode(); 

       try{ 
       String toppath = new String(); 
       FTPFile[] ftpDirs = ftpClient.listDirectories(); 
       for (int i = 0; i < ftpDirs.length; i++) { 
        toppath = ftpDirs[0].getName(); 
        System.out.println("Directory->: " + ftpDirs[i].getName()); 

       } 

       FTPFile[] ftpdirs2 = ftpClient.listFiles(toppath); 
       for (int i = 0; i < ftpdirs2.length; i++) { 
        System.out.println("Files->: " + ftpdirs2[i].getName()); 
       } 
       }catch (Exception e) { 
        e.printStackTrace(); 
       } 


      } catch (Exception e) { 
       e.printStackTrace(); 
      } 

Answer 1

使用此代码，它应该帮助

FTPFile[] ftpDirs = mFTPClient.listDirectories(); 
        for (int i = 0; i < ftpDirs.length; i++) { 
         toppath = ftpDirs[0].getName(); 
         Log.d("CONNECT", "Directories in the ftp server are " 
           + ftpDirs[i].getName()); 
        } 

        FTPFile[] ftpdirs2 = mFTPClient.listFiles(toppath); 
        for (int i = 0; i < ftpdirs2.length; i++) { 
         Log.d("CONNECT", 
           "File i need is " + ftpdirs2[i].getName()); 
        } 

Answer 2

您可以使用CkFtp2 API轻松地获得FTP目录列表信息。像下面这样：

CkFtp2 ftp = new CkFtp2(); 

int n = ftp.get_NumFilesAndDirs(); 
    if (n < 0) { 
     outStr += ftp.lastErrorText() + "\n"; 
     tv.setText(outStr); 
     setContentView(tv); 
     return; 
    } 

    if (n > 0) { 
     for (int i = 0; i <= n - 1; i++) { 

      // Display the filename 
      outStr += ftp.getFilename(i) + "\n"; 

      // Display the file size (in bytes) 
      outStr += ftp.GetSize(i) + "\n"; 

      // Is this a sub-directory? 
      if (ftp.GetIsDirectory(i) == true) { 
       outStr += ".. this is a sub-directory" + "\n"; 
      } 

      outStr += "--" + "\n"; 
     } 

    }