java 使用apache的net包ftp上传文件详解编程语言

import java.io.File;   
import java.io.FileInputStream;   
import java.io.FileNotFoundException;   
import java.io.FileOutputStream;   
import java.io.IOException;   
import java.io.InputStream;   
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 JFtpApche   
{   
    privatestatic FTPClient ftpClient = new FTPClient();  
 
    privatestatic String encoding = System.getProperty("file.encoding");  
 
    publicstatic boolean uploadFile(String url, int port, String username,String password, String path, String filename, InputStream input)  
    {  
       boolean result = false;   
       try   
       {   
           int reply;   
           // 如果采用默认端口，可以使用ftp.connect(url)的方式直接连接FTP服务器  
           ftpClient.connect(url);   
           // ftp.connect(url, port);// 连接FTP服务器   
           // 登录   
           ftpClient.login(username, password);   
           ftpClient.setControlEncoding(encoding);   
           // 检验是否连接成功   
           reply = ftpClient.getReplyCode();   
           if (!FTPReply.isPositiveCompletion(reply))   
           {   
               System.out.println("连接失败");   
               ftpClient.disconnect();   
               return result;   
           }   
           // 转移工作目录至指定目录下   
           boolean change = ftpClient.changeWorkingDirectory(path);  
           ftpClient.setFileType(FTP.BINARY_FILE_TYPE);  
           if (change)   
           {   
               result = ftpClient.storeFile(newString(filename.getBytes(encoding), "iso-8859-1"), input);  
               if (result)   
               {   
                   System.out.println("上传成功!");   
               }   
           }   
           input.close();   
           ftpClient.logout();   
       } catch (IOException e)   
       {   
           e.printStackTrace();   
       } finally   
       {   
           if (ftpClient.isConnected())   
           {   
               try   
               {   
                   ftpClient.disconnect();   
               } catch (IOException ioe)   
               {   
               }   
           }   
       }   
       return result;   
    }  
 
    public voidtestUpLoadFromDisk()   
    {  
       try   
       {   
           FileInputStream in = new FileInputStream(newFile("./data/se/1-2015-02-03-14.list"));   
           //boolean flag = uploadFile("127.0.0.1", 21, "zlb", "123", "/","哈哈.txt", in);   
           boolean flag = uploadFile("10.10.2.55", 21, "anonymous", "", "/","1-2015-02-03-14.list", in);   
           System.out.println(flag);   
       } catch (FileNotFoundException e)   
       {   
           e.printStackTrace();   
       }   
    }  
 
    publicstatic boolean downFile(String url, int port, String username,String password, String remotePath, String fileName, StringlocalPath)   
    {  
       boolean result = false;   
       try   
       {   
           int reply;   
           ftpClient.setControlEncoding(encoding);   
 
           // FTPClientConfig conf = new   
           // FTPClientConfig(FTPClientConfig.SYST_NT);  
           // conf.setServerLanguageCode("zh");   
           ftpClient.connect(url, port);   
           // 如果采用默认端口，可以使用ftp.connect(url)的方式直接连接FTP服务器  
           ftpClient.login(username, password);// 登录   
           // 设置文件传输类型为二进制   
           ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);  
           // 获取ftp登录应答代码   
           reply = ftpClient.getReplyCode();   
           // 验证是否登陆成功   
           if (!FTPReply.isPositiveCompletion(reply))   
           {   
               ftpClient.disconnect();   
               System.err.println("FTP server refused connection.");  
               return result;   
           }   
           // 转移到FTP服务器目录至指定的目录下   
           ftpClient.changeWorkingDirectory(newString(remotePath.getBytes(encoding), "iso-8859-1"));  
           // 获取文件列表   
           FTPFile[] fs = ftpClient.listFiles();   
           for (FTPFile ff : fs)   
           {   
               if (ff.getName().equals(fileName))   
               {   
                   File localFile = new File(localPath + "/" + ff.getName());  
                   OutputStream is = new FileOutputStream(localFile);  
                   ftpClient.retrieveFile(ff.getName(), is);   
                   is.close();   
               }   
           }   
           ftpClient.logout();   
           result = true;   
       } catch (IOException e)   
       {   
           e.printStackTrace();   
       } finally   
       {   
           if (ftpClient.isConnected())   
           {   
               try   
               {   
                   ftpClient.disconnect();   
               } catch (IOException ioe)   
               {   
               }   
           }   
       }   
       return result;   
    }  
 
    public voidtestDownFile()   
    {  
       try   
       {   
           boolean flag = downFile("127.0.0.1", 21, "zlb", "123", "/","contact.txt", "D:/");   
           System.out.println(flag);   
       } catch (Exception e)   
       {   
           e.printStackTrace();   
       }   
    }  
 
    publicstatic void main(String[] args)   
    {  
       JFtpApche fa = new JFtpApche();   
       //fa.testDownFile();   
       fa.testUpLoadFromDisk(); 
    }  
 
}