Data commit

Task/FTP/Java/ftp.java

@@ -0,0 +1,73 @@
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import org.apache.commons.net.ftp.FTP;
+import org.apache.commons.net.ftp.FTPClient;
+import org.apache.commons.net.ftp.FTPFile;
+import org.apache.commons.net.ftp.FTPReply;
+
+public class FTPconn {
+
+    public static void main(String[] args) throws IOException {
+        String server = "ftp.hq.nasa.gov";
+        int port = 21;
+        String user = "anonymous";
+        String pass = "ftptest@example.com";
+
+        OutputStream output = null;
+
+        FTPClient ftpClient = new FTPClient();
+        try {
+            ftpClient.connect(server, port);
+
+            serverReply(ftpClient);
+
+            int replyCode = ftpClient.getReplyCode();
+            if (!FTPReply.isPositiveCompletion(replyCode)) {
+                System.out.println("Failure. Server reply code: " + replyCode);
+                return;
+            }
+
+            serverReply(ftpClient);
+
+            if (!ftpClient.login(user, pass)) {
+                System.out.println("Could not login to the server.");
+                return;
+            }
+
+            String dir = "pub/issoutreach/Living in Space Stories (MP3 Files)/";
+            if (!ftpClient.changeWorkingDirectory(dir)) {
+                System.out.println("Change directory failed.");
+                return;
+            }
+
+            ftpClient.enterLocalPassiveMode();
+
+            for (FTPFile file : ftpClient.listFiles())
+                System.out.println(file);
+
+            String filename = "Can People go to Mars.mp3";
+            output = new FileOutputStream(filename);
+
+            ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
+            if (!ftpClient.retrieveFile(filename, output)) {
+                System.out.println("Retrieving file failed");
+                return;
+            }
+
+            serverReply(ftpClient);
+
+            ftpClient.logout();
+
+        } finally {
+            if (output != null)
+                output.close();
+        }
+    }
+
+    private static void serverReply(FTPClient ftpClient) {
+        for (String reply : ftpClient.getReplyStrings()) {
+            System.out.println(reply);
+        }
+    }
+}