Java using Apache upload files to ftp Commons-net-3.2.jar

Import Java.io.ByteArrayInputStream;
Import Java.io.DataInputStream;
Import Java.io.File;
Import Java.io.FileInputStream;
Import Java.io.FileOutputStream;
Import java.io.IOException;
Import Java.io.InputStream;
Import java.io.UnsupportedEncodingException;
Import Java.text.SimpleDateFormat;
Import java.util.ArrayList;
Import Java.util.Date;

Import java.util.List;
Import Sun.net.TelnetInputStream;

Import Sun.net.TelnetOutputStream;
Import Org.apache.commons.net.ftp.FTP;
Import org.apache.commons.net.ftp.FTPClient;


Import Org.apache.commons.net.io.SocketInputStream;
     public class Ftputil {private FtpClient ftpclient;
     /** * Transfer mode is a binary file.
    * * public static final int binary_file_type = Ftp.binary_file_type;  /** * connectserver * Connect FTP Server * @throws java.io.IOException * @param path folder, NULL represents root * @param password Password * @param user login * @param server address/public void ConnectServer (STR ing server, String user, string password, string path) throws IOException {//SERVER:FTP server IP address; User: Logon to FTP server username   
      Password: The password of the username to log on to the FTP server; path:ftp the path on the server ftpclient = new FtpClient ();   
      Ftpclient.connect (server);  
      Ftpclient.login (user, password);
      int returnCode1 = Ftpclient.getreplycode ();
     SYSTEM.OUT.PRINTLN ("FTP Response code 1:" + returnCode1);  
          Path is a subdirectory of the home directory under the FTP service if (!ftpclient.changeworkingdirectory (path)) {//If you cannot enter Dir, this directory does not exist.
          System.out.println ("Path:" + path);
      Ftpclient.makedirectory (path); }//New set parameters//================================================================== Ftpclient.setbuffersize (
      1024);
      Ftpclient.setcontrolencoding ("UTF-8");
      Ftpclient.enterlocalpassivemode (); ================================================================== if (path.length ()!= 0) FtpClient.changeWorkin   
     Gdirectory (path); Upload and download ftpclient.setfile with 2Type (Binary_file_type);
      int returnCode2 = Ftpclient.getreplycode ();
SYSTEM.OUT.PRINTLN ("FTP Response code 1:" + returnCode2);           /** * Upload * upload file * @throws java.lang.Exception * @return-1 file does not exist *    
-2 File content is empty * >0 successfully uploaded, return file size * @param newname upload new filename * @param filename uploaded file * * *   
public boolean upload (String filename,string newname) throws Exception {long result = 0;   
      Telnetoutputstream OS = null;   
      FileInputStream is = null;
     Boolean flag = false;   
         try {java.io.File file_in = new java.io.File (filename);   
         if (!file_in.exists ()) return false;   
          /*if (File_in.length () ==0) return-2;   
          OS = Ftpclient.put (newname);   result = File_in.length ();   
        * * is = new FileInputStream (file_in);   
         /* byte[] bytes = new byte[1024];   
         int C; while ((c = is.read (bytes))!=-1) {os.write (bytes, 0, c);  
      } */flag = Ftpclient.storefile (New String (Newname.getbytes (), "iso-8859-1"), is);   
          Finally {if (is!= null) {is.close ();   
} return flag;
    public boolean uploadbytetoftp (String filename,byte pic[]) {Boolean flag = false;
    InputStream input = new Bytearrayinputstream (pic);
        try {flag = Ftpclient.storefile (New String (Filename.getbytes (), "iso-8859-1"), input);
          int returnCode1 = Ftpclient.getreplycode ();
    SYSTEM.OUT.PRINTLN ("FTP Response Code 3:" + returnCode1);
    catch (Unsupportedencodingexception e) {//TODO auto-generated catch block E.printstacktrace ();
    catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
return flag; /** * Upload * @throws java.lang.Exception * @return * @param filename */public boolean upload (string filename) throws Exception {string newn   
    ame = "";   
     if (Filename.indexof ("/") >-1) {newname = filename.substring (Filename.lastindexof ("/") +1);   
     }else {newname = filename;   
return upload (filename,newname); /** * Download * download files from FTP to local * @throws java.lang.Exception * @return * @para M newfilename locally generated filename * @param filename on server filename *//*public long Download (String filename,string Newfil   
     ename) throws Exception {long result = 0;   
     Telnetinputstream is = null;   
    FileOutputStream OS = null;          
        try {is = ftpclient.get (filename);   
        Java.io.File outfile = new Java.io.File (newfilename);   
       OS = new FileOutputStream (outfile);   
       byte[] bytes = new byte[1024];   
       int C; while (c = IS.READ (bytes))!=-1) {os.write (bytes, 0, c);   
        result = result + C;   
     } catch (IOException e) {e.printstacktrace ();   
          Finally {if (is!= null) {is.close ();   
          } if (OS!= null) {os.close ();   
} return result; /** * Obtains all file lists in a directory * public list getfilelist (String path) {List List = new ArrayList   
    ();   
       try {datainputstream dis = new DataInputStream (ftpclient.namelist (path));   
       String filename = "";           
        while ((Filename=dis.readline ())!=null) {list.add (filename);   
     } catch (Exception e) {e.printstacktrace ();   
} return list; * * */** * closeserver * disconnected from the FTP server * @throws java.io.IOException/Public VOID CloseServer () throws IOException {try {if (ftpclient!= null) {   
       Ftpclient.disconnect ();   
    } catch (IOException e) {e.printstacktrace (); } public static string uploadfiletoftp (string IP, string user, string pass, String folder, String Pathandnam   
         E) throws exception{ftputil ftp = new Ftputil ();
         System.out.println ("Folder--->" + folder);
         String folderdate = folder + new SimpleDateFormat ("Yyyy-mm-dd"). Format (new Date ());

            System.out.println ("Folderdate--->" + folderdate);   
                 try {//Connect FTP server Ftp.connectserver (IP, user, pass, folderdate);
                  * * Upload files to the Info2 folder under *//*//Boolean flag = Ftp.upload ("D:/test.txt");
                  System.out.println ("Pathandname:" + pathandname);
                 Boolean flag = Ftp.upload (pathandname); 
                  if (flag) {System.out.println ("upload succeeded");
                  }else{System.out.println ("Upload failed");   
                } catch (Exception e) {///}finally {   
             Ftp.closeserver ();
           return folderdate;
        public static string Uploadbyte (String folder,string filename,string ip,string user,string pass,byte pic[]) {  
            Ftputil ftp = new Ftputil ();
            String folderdate = folder + new SimpleDateFormat ("Yyyy-mm-dd"). Format (new Date ());
        try {ftp.connectserver (IP, user, pass, folderdate);
        catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();
        Boolean flag = false;
        Flag = ftp.uploadbytetoftp (filename, pic);
        
    return folderdate; public static void Main (String [] args)Throws Exception {ftputil ftp = new Ftputil (); try {//First Direct upload file//Connect FTP server Ftp.connectserver ("10.67.65.53", "Docuser", "Docuser", "/uat/   
          "+new SimpleDateFormat (" Yyyy-mm-dd "). Format (new Date ());
          * * Upload files to the Info2 folder *//*//upload file Boolean flag = Ftp.upload ("D:/test.txt");
          if (flag) {System.out.println ("upload succeeded");
          }else{System.out.println ("Upload failed");
          //second direct upload byte stream, FTP generated file F = new filename ("D:/test.txt");
          byte b[] = new byte[2048];
          InputStream input = new FileInputStream (f);  Note: The method of converting bytes into an input stream inputstream input = new Bytearrayinputstream (pic);
          Learn the juvenile Input.read (b);
          byte[] pic = b; String Datepath = Ftputil.uploadbyte ("/uat/", "fileName" + ". jpg", "10.67.65.53", "username", "password", pic
                
        
); System.out.println ("filEsize: "+ftp.upload (" d:/test.txt ") +" byte ");   
         /** gets the list of all files under the Info2 folder and downloads to e-disk under * *////////////* list = Ftp.getfilelist (".");   
             for (int i=0;i<list.size (); i++) {String filename = (String) list.get (i);   
             SYSTEM.OUT.PRINTLN (filename);   
          Ftp.download (filename, "e:/" +filename);   
     */} catch (Exception e) {///}finally {ftp.closeserver ();   }   
   }     
}

Finally, file creation is not able to create a multi-tiered directory, you must change the working directory, create a directory in the calling API