调用FtpClient类上传文件（java）

package cn.jsfund.util; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import sun.net.TelnetInputStream; import sun.net.TelnetOutputStream; import sun.net.ftp.FtpClient; public class FtpHelper_bak { /** * @param args */ public static void main(String[] args) { FtpHelper_bak help = new FtpHelper_bak(); //help.downloadFile(); help.uploadFile(); } // 列举文件 public void listFile() { String server = "10.10.10.90"; // 输入的FTP服务器的IP地址 String user = "root"; // 登录FTP服务器的用户名 String password = "jsweb123"; // 登录FTP服务器的用户名的口令 String path = "/"; // FTP服务器上的路径 try { FtpClient ftpClient = new FtpClient(); // 创建FtpClient对象 ftpClient.openServer(server); // 连接FTP服务器 ftpClient.login(user, password); // 登录FTP服务器 if (path.length() != 0) ftpClient.cd(path); TelnetInputStream is = ftpClient.list(); int c; while ((c = is.read()) != -1) { System.out.print((char) c); } is.close(); ftpClient.closeServer();// 退出FTP服务器 } catch (IOException ex) { ex.printStackTrace(); } } // 文件下载 void downloadFile() { String server = "10.10.10.90"; // 输入的FTP服务器的IP地址 String user = "root"; // 登录FTP服务器的用户名 String password = "jsweb123"; // 登录FTP服务器的用户名的口令 String path = "/"; // FTP服务器上的路径 String filename_in = "a.txt"; String filename_out = "d:\\1.txt"; try { FtpClient ftpClient = new FtpClient(); ftpClient.openServer(server); ftpClient.login(user, password); if (path.length() != 0) ftpClient.cd(path); ftpClient.binary(); TelnetInputStream is = ftpClient.get(filename_in); File file_out = new File(filename_out); FileOutputStream os = new FileOutputStream(file_out); byte[] bytes = new byte[1024]; int c; while ((c = is.read(bytes)) != -1) { os.write(bytes, 0, c); } is.close(); os.close(); ftpClient.closeServer(); } catch (IOException ex) { ex.printStackTrace(); } } // 文件上传 void uploadFile() { String server = "10.10.10.90"; // 输入的FTP服务器的IP地址 String user = "root"; // 登录FTP服务器的用户名 String password = "jsweb123"; // 登录FTP服务器的用户名的口令 String path = "/home"; // FTP服务器上的路径 String filename_in = "d:\\1.txt"; String filename_out = "1.txt"; try { FtpClient ftpClient = new FtpClient(); ftpClient.openServer(server); ftpClient.login(user, password); if (path.length() != 0) ftpClient.cd(path); ftpClient.binary(); TelnetOutputStream os = ftpClient.put(filename_out); File file_in = new File(filename_in); FileInputStream is = new FileInputStream(file_in); byte[] bytes = new byte[1024]; int c; while ((c = is.read(bytes)) != -1) { os.write(bytes, 0, c); } is.close(); os.close(); ftpClient.closeServer(); } catch (IOException ex) { ex.printStackTrace(); } } }