Android FTP server upload file strategy (code details)

import ;

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import ;

public class FTPClientUtils {

 private static final String TAG = "MainActivity";
 private FTPClient ftpClient = null; // FTP client
 /**
  * Connect to the FTP server
  *
  * @param host ftp server domain name
  * @param username Access username
  * @param password access password
  * @param port
  * @return Whether the connection is successful
  */
 public boolean ftpConnect(String host, String username, String password, int port) {
 try {
  ftpClient = new FTPClient();
  (host,port);
  // Based on the returned status code, determine whether the link is successfully established  if ((())) {
  boolean status = (username, password);
  /*
    * Set file transfer mode
    * To avoid some possible problems, you must set the file transfer format here.
    * Here we use BINARY_FILE_TYPE to transfer text, images and compressed files.
    */
  (FTP.BINARY_FILE_TYPE);
  ();
  return status;
  }
 } catch (Exception e) {
  ();
 }
 return false;
 }

 /**
  * Disconnect the ftp server
  *
  * @return Disconnect result
  */
 public boolean ftpDisconnect() {
 //Judge empty pointer if (ftpClient == null) {
  return true;
 }
 // Disconnect the ftp server try {
  ();
  ();
  return true;
 } catch (Exception e) {
  ();
 }
 return false;
 }

 /**
  * ftp file upload
  *
  * @param srcFilePath Source file directory
  * @param desFileName File name
  * @return File upload result
  */
 public boolean ftpUpload(String srcFilePath, String desFileName) {
 boolean status = false;
 try {
  FileInputStream srcFileStream = new FileInputStream(srcFilePath);
  status = (desFileName, srcFileStream);
  ();
  return status;
 } catch (Exception e) {
  ();
 }
 return status;
 }

 /**
  * ftp Change directory
  *
  * @param path Change path
  * @return Whether the change is successful
  */
 public boolean ftpChangePath(String path) {
 boolean status = false;
 try {
  status = (path);
 } catch (Exception e) {
  ();
 }
 return status;
 }
}

boolean isConnect = ("Server host", "username", "password", 21);//The default port number is 21  if (isConnect) {
  boolean isSuccessful = ("/sdcard/" + folderName + "/" + mPicturename, "/htdocs/pics/" + mPicturename);
  if (isSuccessful) {
   ();
  		//Upload successfully  } else {
   //Upload failed  }
  } else {
  //The server connection failed  }

package ; 
 
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import ; 
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import ; 
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import ; 
 
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public class MyUploadThread extends Thread { 
 private String fileName;// File name private String filePath;// File local path private String fileStoragePath;// File server storage path private String serverAddress;// Server address private String ftpUserName;// ftp account private String ftpPassword;// ftp password private Context mContext; 
 public MyUploadThread() { 
 super(); 
 // TODO Auto-generated constructor stub 
 } 
 
 public MyUploadThread(Context mContext,String fileName, String filePath, 
  String fileStoragePath,String serverAddress,String ftpUserName,String ftpPassword) { 
 super(); 
  = fileName; 
  = filePath; 
  = fileStoragePath; 
  = serverAddress; 
  = ftpUserName; 
  = ftpPassword; 
 =mContext; 
 } 
 
 @Override 
 public void run() { 
 (); 
 try { 
  FileInputStream fis=null; 
  FTPClient ftpClient = new FTPClient(); 
  String[] idPort = (":"); 
  (idPort[0], (idPort[1])); 
  int returnCode = (); 
  ("caohai", "returnCode,upload:"+returnCode); 
  boolean loginResult = (ftpUserName, ftpPassword); 
  ("caohai", "loginResult:"+loginResult); 
  if (loginResult && (returnCode)) {// If login is successful   
  // Set up the upload directory   
  if (((SysApplication) mContext).getIsVideo()) { 
   ((SysApplication) mContext).setIsVideo(false); 
   boolean ff=(fileStoragePath + "/video/"); 
   ("caohai", "ff:"+ff); 
  }else{ 
  boolean ee=(fileStoragePath + "/photo/"); 
  ("caohai", "ee:"+ee); 
  } 
  (1024); 
  // ("iso-8859-1"); 
  // (); 
  (FTP.BINARY_FILE_TYPE); 
   fis = new FileInputStream(filePath + "/" 
   + fileName); 
   ("caohai", "fileStoragePath00000:"+fileStoragePath); 
  String[] path = ("visitorRecord"); 
   
  boolean fs = (new String((path[1] 
   + "/photo/" + fileName).getBytes(), "iso-8859-1"), fis); 
  ("caohai", "shifoushangchuanchenggong:"+fs); 
  (); 
  (); 
  //(); 
  } else {// If login fails  (); 
  } 
 } catch (NumberFormatException e) { 
  // TODO Auto-generated catch block 
  (); 
 } catch (SocketException e) { 
  // TODO Auto-generated catch block 
  (); 
 } catch (FileNotFoundException e) { 
  // TODO Auto-generated catch block 
  (); 
 } catch (UnsupportedEncodingException e) { 
  // TODO Auto-generated catch block 
  (); 
 } catch (IOException e) { 
  // TODO Auto-generated catch block 
  (); 
 } 
 
 } 
}