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