Java use FTP upload file sample sharing _java

Source: Internet
Author: User
Tags current time ftp connection ftp upload file ftp client

Copy Code code as follows:



Import Java.io.ByteArrayInputStream;


Import Java.io.FileOutputStream;


Import java.io.IOException;


Import java.net.SocketException;


Import Java.text.SimpleDateFormat;


Import Java.util.Date;





Import Org.apache.commons.io.IOUtils;


Import org.apache.commons.net.ftp.FTPClient;





/**


* Class Name:ftpfiletransmit <BR>


* Class Description:please Write your description <BR>


* Remark: <BR>


* @version 1.00 2011-8-9


*/


public class Ftpfiletransmit {





Private String Ftppath;


Private String Ftpname;


Private String FTPPassword;


Private String Ftpserverip;





Public Ftpfiletransmit () {


This.ftppath = "xxx/xxx/";


This.ftpname = "name";


This.ftppassword = "Pass";


This.ftpserverip = "192.168.0.xx";


}








/**


* Method Name:saveinftp <BR>


* Description: Store files on FTP <BR>


* Remark: <BR>


* @param FolderName Example "xxx/xxx/"


* @param FileName Example "Thefilename"


* @param data byte[] Array


* @return boolean<br>


*/


public boolean saveinftp (String FolderName, String FileName, byte[] data) {


Boolean flag = false;





Creating an FTP client


FtpClient ftpclient = new FtpClient ();


Input stream for reading files


FileInputStream FIS = null;


Bytearrayinputstream bis = null;





try {


If both foldername and filename do not meet the basic requirements, then there is no need for FTP operations


if (FolderName!= null


&& Foldername.compareto ("")!= 0


&& FileName!= NULL


&& Filename.compareto ("")!= 0) {





Establish an FTP connection


Ftpclient.connect (This.ftpserverip);





Create an input stream only if the login succeeds


if (Ftpclient.login (This.ftpname, This.ftppassword)) {


File Srcclientfile = new file ("C:/parsexml.xml");





Instantiating an input stream


FIS = new FileInputStream (srcclientfile);





if (Ftpclient.changeworkingdirectory (FolderName)) {


Writes byte[] to the input stream, instantiating


bis = new Bytearrayinputstream (data);





Set buffering


Ftpclient.setbuffersize (1024);





Set file type (binary type)


if (Ftpclient.setfiletype (Ftpclient.binary_file_type)) {


Flag = Ftpclient.storefile (FileName, bis);


}


}


}


}


catch (SocketException e) {


E.printstacktrace ();


Flag = false;


catch (IOException e) {


E.printstacktrace ();


Flag = false;


catch (Exception e) {


E.printstacktrace ();


Flag = false;


finally {


try {


Close the input stream


ioutils.closequietly (bis);


Close connection


Ftpclient.disconnect ();


catch (IOException e) {


E.printstacktrace ();


}


}





return flag;


}





/**


* Method Name:getfromftp <BR>


* Description: Read files from FTP <BR>


* Remark: <BR>


* @return boolean<br>


*/


public Boolean getfromftp () {


Boolean flag = false;





Creating an FTP client


FtpClient ftpclient = new FtpClient ();


Output stream for output file


FileOutputStream fos = null;





try {


Establish an FTP connection


Ftpclient.connect (This.ftpserverip);


Create an output stream if the login succeeds


if (Ftpclient.login (This.ftpname, This.ftppassword)) {


FTP files


String distinationfile = "/name/xxx/xxx/xxx file";


Instantiating an output stream


FOS = new FileOutputStream ("C:/parsexml_inftp.xml");





Set buffering


Ftpclient.setbuffersize (1024);





Set file type (binary type)


if (Ftpclient.setfiletype (Ftpclient.binary_file_type)) {


Ftpclient.retrievefile (Distinationfile, FOS);


Flag = true;


}


}


catch (SocketException e) {


E.printstacktrace ();


Flag = false;


catch (IOException e) {


E.printstacktrace ();


Flag = false;


catch (Exception e) {


E.printstacktrace ();


Flag = false;


finally {


try {


Turn off the output stream


ioutils.closequietly (FOS);


Close connection


Ftpclient.disconnect ();


catch (IOException e) {


E.printstacktrace ();


}


}





return flag;


}





public boolean createdirectory () {


Boolean flag = false;





Creating an FTP client


FtpClient ftpclient = new FtpClient ();





try {


Establish an FTP connection


Ftpclient.connect (This.ftpserverip);


If the login succeeds, the operation will be performed


if (Ftpclient.login (This.ftpname, This.ftppassword)) {





Toggles the file path to the "NNDD3" folder on FTP


if (This.ftppath!= null && this.ftpPath.compareTo ("")!= 0


&& ftpclient.changeworkingdirectory (This.ftppath)) {


SimpleDateFormat f = new SimpleDateFormat ("YyyyMMdd");


String time = F.format (new Date ());





String FolderName = time + "_retransmit";


Ftpclient.makedirectory (FolderName);


Flag = true;


}


}


catch (SocketException e) {


E.printstacktrace ();


Flag = false;


catch (IOException e) {


E.printstacktrace ();


Flag = false;


catch (Exception e) {


E.printstacktrace ();


Flag = false;


finally {


try {


Close connection


Ftpclient.disconnect ();


catch (IOException e) {


E.printstacktrace ();


}


}





return flag;


}





Public string[] Getallfoldernames () {


Creating an FTP client


FtpClient ftpclient = new FtpClient ();





try {


Establish an FTP connection


Ftpclient.connect (This.ftpserverip);





If the login succeeds, the operation will be performed


if (Ftpclient.login (This.ftpname, This.ftppassword)) {





Toggles the file path to the "NNDD3" folder on FTP


if (This.ftppath!= null && this.ftpPath.compareTo ("")!= 0


&& ftpclient.changeworkingdirectory (This.ftppath)) {


Subtracts the current time by 2 days and deletes packets from the previous two days


String time = Minustime ();





string[] Allnames = Ftpclient.listnames ();





string[] temp = new String[allnames.length];


Initializing an array


for (int j = 0; J < Allnames.length; J + +) {


TEMP[J] = "";


}





Find the name of the folder you want to delete


for (int i = 0; i < allnames.length i + +) {


if (allnames[i].substring (0, 8). CompareTo (time) <= 0) {


Temp[i] = allnames[i];


}


}





return temp;


}


}


catch (SocketException e) {


E.printstacktrace ();


catch (IOException e) {


E.printstacktrace ();


finally {


try {


Close connection


Ftpclient.disconnect ();


catch (IOException e) {


E.printstacktrace ();


}


}





return null;


}





/**


*


* Method Name:minustime <BR>


* Description: Get money for two days, like the first two days of 2011-8-1 is 2011-7-30 <BR>


* Remark: <BR>


* @return string<br>


*/


Private String Minustime () {


SimpleDateFormat df=new SimpleDateFormat ("YyyyMMdd");


Date d = new Date ();


String timeMinus2 = Df.format (New Date (D.gettime ()-2 * 24 * 60 * 60 * 1000));


return TIMEMINUS2;


}





public static void Main (string[] args) {


Ftpfiletransmit ftpfiletransmit = new Ftpfiletransmit ();


Ftpfiletransmit.deletefoldersinftp ();





Boolean flag = Ftpfiletransmit.createdirectory ();


if (flag) {


System.out.println ("The success of the FTP folder created by Hu Jintao");


//      }





String FolderName = Ftpfiletransmit.ftppath + "20110809_retransmit/";


byte[] data = new byte[1024];


for (int i = 0; i < data.length i + +) {


Data[i] = ' a ';


//      }


Boolean flag = Ftpfiletransmit.saveinftp (FolderName, "2011080912345678", data);


if (flag) {


System.out.println ("The success of the FTP folder created by Hu Jintao");


//      }


}


}


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