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package ftpdownload;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.SocketException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;
public class FtpUtil {
private final static Log logger=LogFactory.getLog(FtpUtil.class);
/**
* 获取FTPClient对象
*
* @param ftpHost
* FTP主机服务器
* @param ftpPassword
* FTP 登录密码
* @param ftpUserName
* FTP登录用户名
* @return
*/
public static FTPClient getFTPClient(String ftpHost,String ftpUsername,String ftpPassword){
FTPClient ftpClient=new FTPClient();
try {
ftpClient=new FTPClient();
ftpClient.connect(ftpHost);// 连接FTP服务器
ftpClient.login(ftpUsername, ftpPassword);// 登陆FTP服务器
if(!FTPReply.isPositiveCompletion(ftpClient.getReplyCode())){
logger.info("未连接到FTP,用户名或密码错误。");
ftpClient.disconnect();
}else{
logger.info("FTP连接成功。");
}
} catch (SocketException e) {
e.printStackTrace();
logger.info("FTP的IP地址可能错误,请正确配置。");
} catch (IOException e) {
e.printStackTrace();
logger.info("FTP的端口错误,请正确配置。");
}
return ftpClient;
}
/*
* 从FTP服务器下载文件
*
* @param ftpHost FTP IP地址
*
* @param ftpUserName FTP 用户名
*
* @param ftpPassword FTP用户名密码
*
* @param ftpPath FTP服务器中文件所在路径
*
* @param localPath 下载到本地的位置
*
* @param fileName 文件名称
*/
public static void downloadFtpFile(String ftpHost,String ftpUsername,String ftpPassword,String ftpPath,String localPath,String fileName){
FTPClient ftpClient=null;
try {
ftpClient=getFTPClient(ftpHost, ftpUsername, ftpPassword);
ftpClient.setControlEncoding("UTF-8");
ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
ftpClient.enterLocalPassiveMode();
ftpClient.changeWorkingDirectory(ftpPath);
File localFile=new File(localPath+File.separatorChar+fileName);
OutputStream os=new FileOutputStream(localFile);
ftpClient.retrieveFile(fileName, os);
os.close();
ftpClient.logout();
} catch (FileNotFoundException e) {
logger.error("没有找到" + ftpPath + "文件");
e.printStackTrace();
} catch (SocketException e) {
logger.error("连接FTP失败");
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
logger.error("文件读取错误");
e.printStackTrace();
}
}
}
package ftpdownload;
import org.testng.annotations.Test;
public class FtpDownloadTestScript {
public static void main(String[] args) {
String ftpHost="132.225.132.73";
String ftpUsername="ftpuser";
String ftpPassword="ftp2016";
String ftpPath="esbdata/JS/ShengWangGuan/";
String localPath="D:/csv";
String fileName="*.csv";
FtpUtil.downloadFtpFile(ftpHost, ftpUsername, ftpPassword, ftpPath, localPath, fileName);
}
}