java ftp上传和下载

首先，建3个接口

FTPOperate.java:

public interface FTPOperate { public void execute(FTPBean entity); }

 

FTPProxy.java:

public interface FTPProxy { public void connection(); public abstract void upload(); public abstract void download(); public void setEntity(FTPBean entity); }

 

FTPBean.java:

public interface FTPBean { public abstract String getServerIP(); public abstract void setServerIP(String serverIP); public abstract String getUser(); public abstract void setUser(String user); public abstract String getPassword(); public abstract void setPassword(String password); public abstract String getSrcFile(); public abstract void setSrcFile(String srcFile); public abstract String getTargetFile(); public abstract void setTargetFile(String targetFile); public abstract String getFtpPath(); public abstract void setFtpPath(String ftpPath); }

 

然后分别实现这两个接口：

FTPProxyImpl.java:

import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.net.SocketException; import org.apache.commons.net.ftp.FTPClient; import com.kt.iptv.common.ftp.FTPBean; import com.kt.iptv.common.ftp.FTPProxy; public class FTPProxyImpl implements FTPProxy { public FTPProxyImpl() { super(); ftpClient = new FTPClient(); } public FTPProxyImpl(FTPBean entity) { this(); this.entity = entity; } private FTPBean entity; private FTPClient ftpClient; public void connection() { try { ftpClient.connect(entity.getServerIP()); ftpClient.login(entity.getUser(), entity.getPassword()); } catch (SocketException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } public void download() { FileOutputStream fos = null; try { String remoteFile = entity.getSrcFile(); String remoteFileName = ""; if (0 == remoteFile.lastIndexOf("/")) { remoteFileName = remoteFile.substring(remoteFile .lastIndexOf("/") + 1); } else if (0 < remoteFile.lastIndexOf("/")) { remoteFileName = remoteFile.substring(remoteFile .lastIndexOf("/") + 1); String path = remoteFile.substring(0, remoteFile .lastIndexOf("/")); ftpClient.changeWorkingDirectory(path); } else { remoteFileName = remoteFile; } fos = new FileOutputStream(entity.getTargetFile()); ftpClient.setBufferSize(1024 * 8); ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE); ftpClient.retrieveFile(remoteFileName, fos); } catch (IOException e) { e.printStackTrace(); } finally { try { fos.close(); ftpClient.disconnect(); } catch (IOException e) { e.printStackTrace(); } } } public void upload() { FileInputStream fis = null; try { File srcFile = new File(entity.getSrcFile()); fis = new FileInputStream(srcFile); ftpClient.setBufferSize(1024 * 8); ftpClient.setControlEncoding("GBK"); String ftpPath = entity.getFtpPath(); if(null!=ftpPath&&!"".equals(ftpPath)) { ftpClient.makeDirectory(ftpPath); ftpClient.changeWorkingDirectory(ftpPath); } ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE); ftpClient.storeFile(entity.getTargetFile(), fis); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { try { fis.close(); ftpClient.disconnect(); } catch (IOException e) { e.printStackTrace(); } } } public void setEntity(FTPBean entity) { this.entity = entity; } }

 

FTPBeanImpl.java:

import com.kt.iptv.common.ftp.FTPBean; public class FTPBeanImpl implements FTPBean { private String serverIP; private String user; private String password; private String srcFile; private String targetFile; private String ftpPath; public String getServerIP() { return serverIP; } public void setServerIP(String serverIP) { this.serverIP = serverIP; } public String getUser() { return user; } public void setUser(String user) { this.user = user; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getSrcFile() { return srcFile; } public void setSrcFile(String srcFile) { this.srcFile = srcFile; } public String getTargetFile() { return targetFile; } public void setTargetFile(String targetFile) { this.targetFile = targetFile; } public String getFtpPath() { return ftpPath; } public void setFtpPath(String ftpPath) { this.ftpPath = ftpPath; } }

 

在建立两个线程，下载线程和上传线程

FTPDownloadThread.java:

import com.kt.iptv.common.ftp.FTPBean; import com.kt.iptv.common.ftp.FTPProxy; public class FTPDownloadThread implements Runnable { public FTPDownloadThread(FTPBean entity) { super(); ftpProxy = new FTPProxyImpl(entity); } private FTPProxy ftpProxy; public void run() { ftpProxy.connection(); ftpProxy.download(); } }

 

FTPUploadThread.java:

public class FTPUploadThread implements Runnable { public FTPUploadThread(FTPBean entity) { super(); ftpProxy = new FTPProxyImpl(entity); } private FTPProxy ftpProxy; public void run() { ftpProxy.connection(); ftpProxy.upload(); } }

 

 

最后建两个实现FTPOperate接口的实现类，用来启动下载和上传线程
FTPDownload.java:

public class FTPDownload implements FTPOperate { public void execute(FTPBean entity) { Runnable ftpDownloadThread = new FTPDownloadThread(entity); Thread thread = new Thread(ftpDownloadThread); thread.start(); } }

 

FTPUpload.java:

public class FTPUpload implements FTPOperate { public void execute(FTPBean entity) { Runnable ftpUploadThread = new FTPUploadThread(entity); Thread thread = new Thread(ftpUploadThread); thread.start(); } }