Java upload, download, delete ftp files

Altogether three classes, a tool class Ftputil., an entity class Kmconfig. A test class

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Ftputil class---------------

Package Ftpdemo;
Import Java.io.DataOutputStream;
Import Java.io.InputStream;

Import Java.io.OutputStream;
Import Sun.net.TelnetInputStream;
Import Sun.net.TelnetOutputStream;



Import sun.net.ftp.FtpClient; public class Ftputil {//upload file to ftp common method public static void Uploadfileftp (Kmconfig kmconfig,inputstream is, String Filenam
			E) {try {String ftphost = Kmconfig.getftphost ();
			int port = Kmconfig.getftpport ();
			String userName = Kmconfig.getftpuser ();
			String PassWord = Kmconfig.getftppassword ();
			

			String path = Kmconfig.getftppath ();
			FtpClient ftpclient = new FtpClient (ftphost, port);//Ftphost is the IP address of the FTP server, port is the FTP server's landing ports, the Ftphost is string type, port is int type.
			Ftpclient.login (UserName, PassWord);//UserName, PassWord for FTP server login username and password ftpclient.binary ();

			FTPCLIENT.CD (path);/path saves the upload file path for the FTP server. Telnetoutputstream telnetout = ftpclient.put (filename);/filename for the uploaded filename dataoutputstream dataout = new Dataoutputstre
			AM (telnetout); byte buffer[] = new BYTe[1024 * 1024];
			int count = 0;
			while ((count = is.read (buffer))!=-1) {dataout.write (buffer, 0, count);
			} telnetout.close ();
			Dataout.close ();
		Ftpclient.closeserver (); catch (Exception e) {System.out.println ("failed to upload file.")
		Please check the system FTP settings and verify that the FTP service is started "); //delete files to ftp common method public static void Deletefileftp (Kmconfig kmconfig,string fileName) {try {String ftphost = k
			Mconfig.getftphost ();
			int port = Kmconfig.getftpport ();
			String userName = Kmconfig.getftpuser ();
			String PassWord = Kmconfig.getftppassword ();

			String path = Kmconfig.getftppath ();
			FtpClient ftpclient = new FtpClient (ftphost, port);//Ftphost is the IP address of the FTP server, port is the FTP server's landing ports, the Ftphost is string type, port is int type.
			Ftpclient.login (UserName, PassWord);//UserName, PassWord for FTP server login username and password ftpclient.binary ();
			FTPCLIENT.CD (path);/path saves the upload file path for the FTP server.
			try {ftpclient.sendserver ("dele" + fileName + "\ r \ n"); The catch (Exception e) {System.out.println ("delete file failed.) Please check the system FTP settings and verify that the FTP service is openMovement ");
		} ftpclient.closeserver (); The catch (Exception e) {System.out.println ("delete file failed.)
		"); }///download FTP files public static void Downloadfileftp (Kmconfig kmconfig,string fileName, String clientfilename, Outputstre
			Am OutputStream) {try {String ftphost = Kmconfig.getftphost ();
			int port = Kmconfig.getftpport ();
			String userName = Kmconfig.getftpuser ();
			String PassWord = Kmconfig.getftppassword ();

			String path = Kmconfig.getftppath ();
			FtpClient ftpclient = new FtpClient (ftphost, port);//Ftphost is the IP address of the FTP server, port is the FTP server's landing ports, the Ftphost is string type, port is int type.
			Ftpclient.login (UserName, PassWord);//UserName, PassWord for FTP server login username and password ftpclient.binary ();
			FTPCLIENT.CD (path);/path saves the upload file path for the FTP server.
				try {telnetinputstream in = Ftpclient.get (FileName);
				byte[] bytes = new byte[1024];
				int cnt=0;
				while ((Cnt=in.read (bytes,0,bytes.length))!=-1) {outputstream.write (bytes, 0, CNT);
				} outputstream.close ();
			In.close (); catch (ExCeption e) {ftpclient.closeserver ();
			E.printstacktrace ();
		} ftpclient.closeserver (); catch (Exception e) {System.out.println ("failed to download the file.")
		Please check the system FTP settings and verify that the FTP service is started ");  
              
           
			}///On FTP server folder public boolean createdir (String path,ftpclient ftpclient) throws exception{  
            Go to the home folder under FTPCLIENT.CD ("/home"); Create remote folder//remote command includes//user PORT RETR ALLO DELE SITE xmkd cdup feat<    br>//Pass PASV STOR REST CWD STAT RMD xcup opts<br>//ACCT TYPE AppE rnfr xcwd help XRMD Stou auth<br>//REIN stru smnt-Rnto LI    ST NOOP PWD SIZE pbsz<br>//QUIT MODE syst abor NLST MKD xpwd-MDTM      Prot<br>//Execute commands on the server, and if you use Sendserver to execute remote commands (you cannot execute local FTP commands), all FTP commands are added with/r/n<br>//              Ftpclient.sendserver ("xmkd/test/bb/r/n");                    Execute FTP command on the server <br>//Ftpclient.readserverresponse must be called after Sendserver <br>//                    NameList ("/test") gets the list of files in the directory <br>//XMKD set up the directory, and when the directory exists, recreate the directory times wrong <br>//   
            XRMD Delete directory <br>//DELE Delete file <br>//through remote command to wear a Files folder  
            Ftpclient.sendserver ("MKD" + path + "\ r \ n");  
            This method must be called in the middle of these two methods otherwise the command regardless of using ftpclient.binary ();  
              
            Ftpclient.readserverresponse ();  
        return false;  /** * Check if folder exists * @param dir * @param ftpclient * @return/public boolean isdirexist (String dir, 
	  	FtpClient ftpclient) {try {ftpclient.cd (dir); 
	  	catch (Exception e) {return false; 
	return true;
 } 

}

Kmconfig class---------------

Package Ftpdemo;

public class Kmconfig {
	//host IP
	private String ftphost = "";
	Port number
	private int ftpport;
	FTP user name
	private String ftpuser = "";
	FTP password
	private String FTPPassword = "";
	Directory
	private String Ftppath = "" In FTP;
	Public String Getftphost () {return
		ftphost;
	}
	public void Setftphost (String ftphost) {
		ftphost = ftphost;
	}
	public int Getftpport () {return
		ftpport;
	}
	public void Setftpport (int ftpport) {
		ftpport = FtpPort;
	}
	Public String Getftpuser () {return
		ftpuser;
	}
	public void Setftpuser (String ftpuser) {
		ftpuser = ftpuser;
	}
	Public String Getftppassword () {return
		FTPPassword;
	}
	public void Setftppassword (String ftppassword) {
		FTPPassword = FTPPassword;
	}
	Public String Getftppath () {return
		ftppath;
	}
	public void Setftppath (String ftppath) {
		ftppath = Ftppath;
	}
	
	
	
}

Test class---------------

Package Ftpdemo;

Import Java.io.File;
Import Java.io.FileInputStream;
Import java.io.FileNotFoundException;
Import Java.io.InputStream;

public class Test {public
	static void Main (string[] args) {
		//Set ftp
		kmconfig km = new Kmconfig ();
		Km.setftphost ("172.20.32.48");
		Km.setftpport ();
		Km.setftpuser ("test");
		Km.setftppassword ("111111");
		Km.setftppath ("KM");
		
		Upload to FTP
		ftputil util=new ftputil ();
		File File = new file ("f:/article 2.jpg");
		InputStream in;
		try {in
			= new FileInputStream (file);
			Util.uploadfileftp (km, in, "changed name. jpg");
		} catch (FileNotFoundException e) {
			//TODO auto-generated catch block
			e.printstacktrace ();
		}
		
		
		Page access: ftp://account: Password @ip Address: Port number/folder directory///  ftp://test:111111@222.22.22.11:21/image/
	}