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94 lines
2.6 KiB
94 lines
2.6 KiB
3 years ago
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package com.eco.plugin.xx.jlyhsjtb.utils;
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import com.fr.ftp.client.FTPClient;
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import com.fr.ftp.client.FTPClientConfig;
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import com.fr.ftp.client.FTPFile;
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import com.fr.ftp.client.FTPReply;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.OutputStream;
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public class FtpUtils {
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/**
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* 从linux下载ftp文件
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* @param host
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* @param port
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* @param user
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* @param password
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* @param dir
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* @param filename
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* @return
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*/
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public static File downloadFromLinux(String host,int port,String user,String password,String dir,String filename) {
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File templateFile = null;
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FTPClient ftp=null;
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try
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{
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//设置ftp连接
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ftp=new FTPClient();
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ftp.connect(host,port);
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ftp.login(user, password);
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ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
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//设置linux环境
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FTPClientConfig conf = new FTPClientConfig( FTPClientConfig.SYST_UNIX);
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ftp.configure(conf);
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//判断是否连接成功
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int reply = ftp.getReplyCode();
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if (!FTPReply.isPositiveCompletion(reply))
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{
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ftp.disconnect();
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FRUtils.FRLogError("ftp连接失败replyCode:"+reply);
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return null;
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}
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//设置访问被动模式
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ftp.setRemoteVerificationEnabled(false);
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ftp.enterLocalPassiveMode();
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//检索ftp目录下所有的文件，利用时间字符串进行过滤
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boolean hasdir = ftp.changeWorkingDirectory(dir);
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if(!hasdir){
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return null;
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}
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FTPFile[]fs = ftp.listFiles();
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for(FTPFile f:fs)
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{
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String ftpFilename =f.getName();
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if(ftpFilename.equals(filename))
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{
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templateFile = File.createTempFile("test","txt");
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OutputStream ios = new FileOutputStream(templateFile);
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ftp.retrieveFile(f.getName(), ios);
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ios.close();
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break;
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}
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}
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}
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catch (Exception e)
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{
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FRUtils.FRLogError("ftp下载失败:"+e.getMessage());
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}
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finally
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{
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if(ftp != null){
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try
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{
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ftp.disconnect();
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} catch (Exception ioe)
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{
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FRUtils.FRLogError("释放ftp连接失败");
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}
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}
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}
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return templateFile;
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}
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}
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