package xxxx.service;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;
import java.io.File;
import java.io.FileOutputStream;
public class Ftp {
private String user;
private String password;
private String host;
private String inputPath;
private String outputPath;
public Ftp(
String user,
String password,
String host
){
this.user = user;
this.password = password;
this.host = host;
}
public void FileGet(String inputPath, String outputPath) throws Exception{
this.inputPath = inputPath;
this.outputPath = outputPath;
FileOutputStream ostream = null;
FTPClient ftpclient = new FTPClient();
try {
ftpclient.connect(this.host);
int reply = ftpclient.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)){
System.err.println("connect fail");
}
if (ftpclient.login(this.user, this.password) == false) {
System.err.println("login fail");
}
ostream = new FileOutputStream(this.outputPath);
ftpclient.retrieveFile(this.inputPath, ostream);
}
catch(Exception e){
e.printStackTrace();
}
finally{
if (ftpclient.isConnected()) ftpclient.disconnect();
if (ostream != null) {
try{
ostream.close();
} catch(Exception e){
e.printStackTrace();
}
}
}
}
}