ftp-client

问题 I'm just wondering: in my Java application, each time I need to connect to an FTP server, should I create a new FTPClient object, or should I create one FTPClient() object and re-use that each time I connect to an FTP server? 回答1: Reusing would be better since you wont need a new instance every time you are creating a new connection, even to a new server. Because the connect and disconnect methods can do the job for you. So reuse as many objects as you can. 回答2: Both will work, but apache

问题 Please figure this out. The code runs properly without any exception. FTPClient ftp = new FTPClient(); ftp.connect(server); if(!ftp.login(username, password)) { ftp.logout(); return false; } int reply = ftp.getReplyCode(); if (!FTPReply.isPositiveCompletion(reply)) { ftp.disconnect(); return false; } InputStream in = new FileInputStream(localfile); ftp.setFileType(ftp.BINARY_FILE_TYPE, ftp.BINARY_FILE_TYPE); ftp.setFileTransferMode(ftp.BINARY_FILE_TYPE); Store = ftp.storeFile(destinationfile,

问题 i have a class in android that connect with the ftp, and store an image, that works perfect the problem is when i am trying to move the image to another directory( i use a php page to moderate that image) it doesnt have permission to handle it, i want to put the permission to 0777 but only the "java code" can do it but i dont know how, I am using FTPClient library this is my code File imageFile = new File(url[0]); FTPClient ftpClient = new FTPClient(); ftpClient.connect(InetAddress.getByName(

问题 This question already has answers here : How to List Directory Contents with FTP in C#? (7 answers) Closed 6 years ago . I am looking to download all the files in ftp to my local folder.All the files should be deleted in ftp once downloaded to local drive. From the below code I can download only a file from ftp where I am not expecting I need to place all the files in a folder but not in the name of local file name. My code: using (WebClient ftpClient = new WebClient()) { ftpClient

问题 I am trying to connect to FTP that requires 'Explicit FTP over TLS' and upload a file. I am trying to do it from my local machine which uses Java version 8 and commons net FTP version 3.6 Below is the code which I use try { FTPSClient ftpClient = new FTPSClient(); ftpClient.setDataTimeout(300); ftpClient.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out))); ftpClient.setAuthValue("TLS"); ftpClient.connect(server, port); int reply = ftpClient.getReplyCode(); if

问题 I am trying to download All files in a directory to my local machine using apache commons like this: import java.io.FileOutputStream; import org.apache.commons.net.ftp.FTPClient; import java.io.IOException; import java.net.SocketException; import org.apache.commons.net.ftp.FTPFile; public class FTPExample { public static void main(String[] args) throws SocketException, IOException { FTPClient client = new FTPClient(); client.connect("MyHostName"); client.enterLocalPassiveMode(); client.login(

问题 My problem is need to transfer files from one remote server to another remote server (may be FTP/SFTP) but there is no direct method to transfer files from one remote server to another. That's why I am downloading files from server to local temp. After uploading to local to another server. After uploading I need to remove local temp folder but the files and the folder is not deleted. Can you please help us in this regard? My code is package FTPTransfer; import java.io.BufferedOutputStream;

问题 I am working on an app that sends files to a url database. I am starting with just trying to send a picture. Currently I am getting a noclassDefFound error in my java. I have tried updating java, deleting and adding the jar files again, and I double checked my manifest for the proper permissions so I am coming here for help. I am posting the LogCat but I narrowed the problem to two lines of code: 24 in the FTP class and 82 in the uploadmedia class. I am also including the classes in question

问题 My code works well to upload first file in the loop to ftp. But it hangs once second file is going to be uploaded. I'm reading the SD card root folder using lib first I set the ftp connection using connectFTP() to establish also data transfer port. Next I'm calling the fileTransfer(); While loop function works well, until first file is transfered. Once second file meet If criteria if (fileTemp != fileName && fileTemp[0] == '1' && fileTemp[1] == '9') and send the client.print(F("STOR "));

问题 I'm trying to connect to an FTP server through a proxy using org.apache.commons.net.ftp.FTPClient. Pretty sure the system properties are getting set correctly as per following: Properties props = System.getProperties(); props.put("ftp.proxySet", "true"); // dummy details props.put("ftp.proxyHost", "proxy.example.server"); props.put("ftp.proxyPort", "8080"); Creating a connection raises a UnknownHostException which I'm pretty sure means the connection isn't making it past the proxy. How can