Java ftp, java

Java ftp, java

FTPUtil

 

Import java. io. file; import java. io. fileOutputStream; import java. io. IOException; import java. io. inputStream; import java. io. outputStream; import java. util. arrayList; import java. util. list; import java. util. stringTokenizer; import org.apache.commons.net. ftp. FTPClient; import org.apache.commons.net. ftp. FTPFile; import org.apache.commons.net. ftp. FTPReply; public class FTPUtil {// public static final String pla Tform_charset = "UTF-8"; public static final String platform_charset = "gb2312"; public static boolean uploadFile (String url, int port, String username, String password, String path, String filename, inputStream input) throws IOException {boolean success = false; FTPClient ftp = new FTPClient (); try {int reply; ftp. connect (url, port); ftp. login (username, password); reply = ftp. getReplyCode (); if (! FTPReply. isPositiveCompletion (reply) {ftp. disconnect (); return success;} path = path. replaceAll ("//", "/"); if (path. startsWith ("/") path = path. substring (1); if (filename. startsWith ("/") filename = filename. substring (1); String dir = new String (path. getBytes (platform_charset), "iso-8859-1"); String destName = new String (filename. getBytes (platform_charset), "iso-8859-1"); buildList (ftp, dir); ft P. setFileType (FTPClient. BINARY_FILE_TYPE); ftp. changeWorkingDirectory (dir); boolean flag = ftp. storeFile (destName, input); input. close (); ftp. logout (); if (flag) success = true;} finally {if (ftp. isConnected () {try {ftp. disconnect ();} catch (IOException ioe) {ioe. printStackTrace () ;}}return success;} public static void sendFile (String url, int port, String username, String password, St Ring path, String filename, InputStream input) throws IOException {FTPClient ftp = new FTPClient (); try {int reply; ftp. connect (url, port); ftp. login (username, password); reply = ftp. getReplyCode (); if (! FTPReply. isPositiveCompletion (reply) {ftp. disconnect (); return;} if (path. startsWith ("/") path = path. substring (1); if (filename. startsWith ("/") filename = filename. substring (1); String dir = new String (path. getBytes (platform_charset), "iso-8859-1"); String destName = new String (filename. getBytes (platform_charset), "iso-8859-1"); buildList (ftp, dir); ftp. setFileType (FTPClient. BINARY_FILE_TYPE); Ftp. changeWorkingDirectory (dir); int n =-1; long trans = 0; int bufferSize = ftp. getBufferSize (); byte [] buffer = new byte [bufferSize]; OutputStream outputstream = ftp. storeFileStream (destName); while (n = input. read (buffer ))! =-1) {outputstream. write (buffer); trans + = n;} input. close (); ftp. logout ();} finally {if (ftp. isConnected () {try {ftp. disconnect ();} catch (IOException ioe) {ioe. printStackTrace () ;}}} public static void buildList (FTPClient ftpclient, String pathList) throws IOException {StringTokenizer s = new StringTokenizer (pathList ,"/"); string pathName = ""; while (s. hasMoreElements () {pathNa Me = pathName + "/" + (String) s. nextElement (); if (pathName. startsWith ("/") pathName = pathName. substring (1); ftpclient. makeDirectory (pathName) ;}} public static boolean downFile (String url, int port, String username, String password, String remotePath, String fileName, String localPath) throws IOException {boolean success = false; FTPClient ftp = new FTPClient (); try {int reply; ftp. connect (Url, port); ftp. login (username, password); reply = ftp. getReplyCode (); if (! FTPReply. isPositiveCompletion (reply) {ftp. disconnect (); return success;} remotePath = new String (remotePath. getBytes (platform_charset), "iso-8859-1"); ftp. changeWorkingDirectory (remotePath); FTPFile [] fs = ftp. listFiles (); for (FTPFile ff: fs) {String name = ff. getName (); name = new String (name. getBytes ("iso-8859-1"), platform_charset); if (name. equals (fileName) {File localPathFile = new Fil E (localPath); // determines whether the path exists. if it does not exist, create if (! LocalPathFile. exists () {localPathFile. mkdirs ();} File localFile = new File (localPath + "/" + name); OutputStream OS = new FileOutputStream (localFile); ftp. retrieveFile (ff. getName (), OS); OS. close () ;}} ftp. logout (); success = true;} finally {if (ftp. isConnected () {try {ftp. disconnect () ;}catch (IOException ioe) {}} return success;} public static List <FTPFile> list (String url, int port, String username, String password, String remotePath) throws Exception {FTPClient ftp = new FTPClient (); List <FTPFile> list = new ArrayList <FTPFile> (); try {int reply; ftp. connect (url, port); ftp. login (username, password); reply = ftp. getReplyCode (); if (! FTPReply. isPositiveCompletion (reply) {ftp. disconnect (); return list;} remotePath = new String (remotePath. getBytes (platform_charset), "iso-8859-1"); ftp. changeWorkingDirectory (remotePath); FTPFile [] files = ftp. listFiles (); for (FTPFile f: files) {String name = f. getName (); if (name. equals (". ") | name. equals (".. ") | name. equals ("Thumbs. db ") continue; list. add (f);} return list;} catch (IOEx Ception e) {e. printStackTrace (); return list;} finally {ftp. logout (); if (ftp. isConnected () {try {ftp. disconnect () ;}catch (IOException ioe) {}}} public static boolean hasSubFolder (FTPClient ftp, String parent) throws IOException {FTPFile [] files = ftp. listFiles (parent); for (FTPFile f: files) {String name = f. getName (); if (name. equals (". ") | name. equals (".. ") | name. equals ("Thum Bs. db ") continue; if (f. isDirectory () {return true;} else {continue ;}return false;} public static boolean deleteFile (String url, int port, String username, String password, String remotePath) throws IOException {boolean success = false; FTPClient ftp = new FTPClient (); try {int reply; ftp. connect (url, port); ftp. login (username, password); reply = ftp. getReplyCode (); if (! FTPReply. isPositiveCompletion (reply) {ftp. disconnect (); return success;} remotePath = new String (remotePath. getBytes (platform_charset), "iso-8859-1"); if (remotePath. startsWith ("/") remotePath = remotePath. substring (1); ftp. changeWorkingDirectory (remotePath); FTPFile [] fs = ftp. listFiles (); for (FTPFile ff: fs) {String name = ff. getName (); ftp. deleteFile (name);} ftp. changeToParentDirectory (); int p = remotePath. lastIndexOf ("/"); String folderName = remotePath. substring (p + 1); ftp. removeDirectory (folderName); ftp. logout (); success = true;} finally {if (ftp. isConnected () {try {ftp. disconnect () ;}catch (IOException ioe) {}} return success ;}}