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copied!<p>Maybe it will be useful to somebody with same problem. I made program by this method:</p> <pre><code>package javaapplication2; import java.io.BufferedInputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import org.apache.commons.net.ftp.*; public class DLFile { public static void saveZIP() throws Exception { FTPClient client = new FTPClient(); FileOutputStream new_file = null; String server = "server"; String user = "user"; String pass = "pass"; String name = ""; String downloadFolder = "download_folder"; Boolean exists = null; int i=0; int j=0; client.connect(server); client.login(user,pass); client.changeWorkingDirectory("/rtr/"); //read ftp content String[] names = client.listNames(); File folder = new File(downloadFolder); String[] filename = folder.list(); for (;i<names.length;i++) { name = names[i]; exists=false; if (name.contains(".zip")) { if (filename.length == 0) { new_file = new FileOutputStream(downloadFolder + name); client.retrieveFile(name, new_file); j++; exists=true; } else { //CHECK IF FILE EXISTS if (!new File(downloadFolder + name).exists()) { new_file = new FileOutputStream(downloadFolder + name); client.retrieveFile(name, new_file); j++; exists=true; } }//else }//if contains .zip }//for if (exists = true) { System.out.println("Downloading ZIP files: Downloaded " + j + " files"); } else System.out.println("Downloading ZIP files: Files already exist."); client.logout(); } } </code></pre>

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