java Java文件通过FTP上传
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/11739153/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
File upload in Java through FTP
提问by Satheesh
Im trying to develop a simple java code which will upload some contents from local machine to a server/another machine.I used the below code
我正在尝试开发一个简单的 java 代码，它将一些内容从本地机器上传到服务器/另一台机器。我使用了下面的代码
import sun.net.ftp.*;
import java.io.*;
public class SftpUpload {
public static void main(String args[]) {
String hostname = "some.remote.machine"; //Remote FTP server: Change this
String username = "user"; //Remote user name: Change this
String password = "start123"; //Remote user password: Change this
String upfile = args[0]; //File to upload passed on command line
String remdir = "/home/user"; //Remote directory for file upload
FtpClient ftp = new FtpClient();
try {
ftp.openServer(hostname); //Connect to FTP server
ftp.login(username, password); //Login
ftp.binary(); //Set to binary mode transfer
ftp.cd(remdir); //Change to remote directory
File file = new File(upfile);
OutputStream out = ftp.put(file.getName()); //Start upload
InputStream in = new FileInputStream(file);
byte c[] = new byte[4096];
int read = 0;
while ((read = in.read(c)) != -1 ) {
out.write(c, 0, read);
} //Upload finished
in.close();
out.close();
ftp.closeServer(); //Close connection
} catch (Exception e) {
System.out.println("Error: " + e.getMessage());
}
}
}
But it is showing error in Line 11 as 'Cannot instantiate the type FtpClient'. Can some one help me how to rectify it.
但它在第 11 行显示错误为“无法实例化 FtpClient 类型”。有人可以帮助我如何纠正它。
采纳答案by Mikko Maunu
回答by mthmulders
If you dowant to use the Sun classes, use FtpClient.create(), as per the JavaDoc for this class.
如果您确实想使用 Sun 类，请FtpClient.create()根据此类的 JavaDoc使用。
回答by Satheesh
i have resolved the exception.thats because my machine is connected in a network which doesnt allow FTP connection.when i tried it in a private dongle it worked.
我已经解决了异常。那是因为我的机器连接在不允许 FTP 连接的网络中。当我在私人加密狗中尝试它时，它工作正常。
