FTPUtils.java
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package com.topdraw.sohu.utils;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPReply;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
public class FTPUtils {
private static final Logger logger = LoggerFactory
.getLogger(FTPUtils.class);
private final String PROJECT_PATH = this.getClass().getClassLoader().getResource("../../") == null ?
(System.getProperty("user.dir").endsWith("/") ? System.getProperty("user.dir")
: System.getProperty("user.dir") + "/")
: this.getClass().getClassLoader().getResource("../../").getPath();
/**
* Description: 向FTP服务器上传文件
* @param url FTP服务器hostname
* @param port FTP服务器端口
* @param username FTP登录账号
* @param password FTP登录密码
* @param path FTP服务器保存目录
* @param filename 上传到FTP服务器上的文件名
* @param input 输入流
* @return 成功返回true，否则返回false
*/
public boolean uploadFile(String url, int port, String username, String password, String path, String filename, InputStream input) {
boolean success = false;
FTPClient ftp = new FTPClient();
try {
int reply;
ftp.connect(url, port);//连接FTP服务器
//如果采用默认端口，可以使用ftp.connect(url)的方式直接连接FTP服务器
ftp.login(username, password);//登录
reply = ftp.getReplyCode();
System.out.println("ReplyCode: " + reply);
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
return success;
}
ftp.changeWorkingDirectory(path);
ftp.storeFile(filename, input);
input.close();
ftp.logout();
success = true;
} catch (IOException e) {
e.printStackTrace();
} finally {
if (ftp.isConnected()) {
try {
ftp.disconnect();
} catch (IOException ioe) {
}
}
}
return success;
}
/**
* Description: 从FTP服务器下载文件
* @param url FTP服务器hostname
* @param port FTP服务器端口
* @param username FTP登录账号
* @param password FTP登录密码
* @param remotePath FTP服务器上的相对路径
* @param fileName 要下载的文件名
* @param localPath 下载后保存到本地的路径
* @return
*/
public static boolean downFile(
String url, int port, String username, String password, String remotePath, String fileName,
String localPath) {
boolean success = false;
FTPClient ftp = new FTPClient();
try {
int reply;
ftp.setConnectTimeout(10 * 1000);
ftp.connect(url, port);
//如果采用默认端口，可以使用ftp.connect(url)的方式直接连接FTP服务器
ftp.login(username, password);//登录
ftp.setBufferSize(102400);
ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
reply = ftp.getReplyCode();
System.out.println("ReplyCode: " + reply);
if (!FTPReply.isPositiveCompletion(reply)) {
logger.info("isPositiveCompletion");
ftp.disconnect();
return success;
}
logger.info("remotePath: " + remotePath);
ftp.changeWorkingDirectory(remotePath);//转移到FTP服务器目录
ftp.enterLocalPassiveMode();
FTPFile[] fs = ftp.listFiles();
for (FTPFile ff:fs) {
if (ff.getName().equals(fileName)) {
File localFile = new File(localPath + "/" + ff.getName());
logger.info("file size: " + ff.getSize());
OutputStream is = new FileOutputStream(localFile);
ftp.retrieveFile(ff.getName(), is);
is.close();
logger.info("download file size: " + localFile.length());
if (ff.getSize() == localFile.length()) {
success = true;
} else {
logger.info("file size mismatch: " + ff.getSize() + " -> " + localPath.length());
}
break;
}
}
ftp.logout();
} catch (IOException e) {
e.printStackTrace();
success = false;
} finally {
if (ftp.isConnected()) {
try {
ftp.disconnect();
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
}
return success;
}
public String downFile(String strFtpPath, String strRelativePath) {
String strUrl = "", strUserName = "", strPassWord = "", strRemotePath = "", strFileName = "", strLocalPath = "";
int iPort = 21;
// 截取FTP地址
final String strFtpFlag = "ftp://";
if (strFtpPath != null && strFtpPath.length() > 0 && strFtpPath.toLowerCase().contains(strFtpFlag)) {
// 首先去掉FTP
final String cutedFtp = strFtpPath.substring(strFtpPath.indexOf(strFtpFlag) + strFtpFlag.length());
// 首先截取用户名、密码、ip、端口
String str4 = "";
if (cutedFtp.indexOf("/") != -1) {
str4 = cutedFtp.substring(0, cutedFtp.indexOf("/"));
} else {
str4 = cutedFtp;
}
// 截取用户名、密码
String strUsernameAndPwd = str4.substring(0, str4.indexOf("@"));
// 截取ip、端口
String strIpAndPort = str4.substring(str4.indexOf("@") + 1);
// 开始获取ip和端口
if (!"".equals(strIpAndPort)) {
if (strIpAndPort.indexOf(":") != -1) {
strUrl = strIpAndPort.substring(0, strIpAndPort.indexOf(":"));
String strPort = strIpAndPort.substring(strIpAndPort.indexOf(":") + 1, strIpAndPort.length());
if (strPort != null) {
iPort = Integer.parseInt(strPort);
}
} else {
// 如果没有端口只获取IP
strUrl = strIpAndPort;
}
}
// 开始获取用户名和密码
if (!"".equals(strUsernameAndPwd)) {
strUserName = strUsernameAndPwd.substring(0, strUsernameAndPwd.indexOf(":"));
strPassWord = strUsernameAndPwd.substring(strUsernameAndPwd.indexOf(":") + 1);
}
// 截取ftp文件路径和文件名
String strFileNameAndPath = "";
if (cutedFtp.indexOf("/") != -1) {
strFileNameAndPath = cutedFtp.substring(cutedFtp.indexOf("/") + 1, cutedFtp.length());
} else {
strFileNameAndPath = "";
}
// 开始获取ftp文件路径和文件名
if (!"".equals(strIpAndPort)) {
if (strFileNameAndPath.indexOf("/") != -1) {
strRemotePath = strFileNameAndPath.substring(0, strFileNameAndPath.lastIndexOf("/"));
strFileName = strFileNameAndPath.substring(strFileNameAndPath.lastIndexOf("/") + 1,
strFileNameAndPath.length());
} else {
strFileName = strFileNameAndPath;
}
}
}
strLocalPath = PROJECT_PATH + strRelativePath + strFileName;
logger.info("file download target path: " + strLocalPath);
File file = new File(strLocalPath);
if (!file.isDirectory()) { // 目录不存在
String[] aPathSegments = strLocalPath.split("/");
String strWalkThroughPath = "/";
for (int i = 0; i < aPathSegments.length - 1; i++) {
strWalkThroughPath = strWalkThroughPath + "/" + aPathSegments[i];
file = new File(strWalkThroughPath);
if (!file.isDirectory()) {
file.mkdir();
}
}
}
boolean b = FTPUtils.downFile(strUrl, iPort, strUserName, strPassWord, strRemotePath, strFileName,
PROJECT_PATH + strRelativePath);
if (!b) {
// 下载失败
logger.info("file download error: " + strLocalPath);
return "";
} else {
logger.info("file saved: " + strLocalPath);
}
return strLocalPath;
}
public static void main(String[] args) {
try {
//FileInputStream in = new FileInputStream(new File("D:/adv.txt"));
//boolean flag = uploadFile("10.50.127.181", 21, "root", "bestvwin", "/tmp", "adv.txt", in);
//boolean flag = downFile("172.25.44.26", 21, "wacos", "wacos", "/opt/wacos/CTMSData/picture/2018/02/07",
// "20180207112330_320029.jpg", "");
//System.out.println(flag);
} catch (Exception e) {
e.printStackTrace();
}
}
}