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();}}