package com.whyc.dto;
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import com.enterprisedt.net.ftp.FTPClient;
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import com.enterprisedt.net.ftp.FTPConnectMode;
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import com.enterprisedt.net.ftp.FTPTransferType;
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import org.apache.commons.lang.StringUtils;
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import java.io.ByteArrayInputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.InputStream;
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public class FtpHelper {
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private FTPClient ftp;
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/**
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* 初始化Ftp信息
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*
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* @param ftpServer ftp服务器地址
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* @param ftpPort Ftp端口号
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* @param ftpUsername ftp 用户名
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* @param ftpPassword ftp 密码
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*/
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public FtpHelper(String ftpServer, int ftpPort, String ftpUsername,
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String ftpPassword) {
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connect(ftpServer, ftpPort, ftpUsername, ftpPassword);
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}
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/**
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* 连接到ftp
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*
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* @param ftpServer ftp服务器地址
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* @param ftpPort Ftp端口号
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* @param ftpUsername ftp 用户名
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* @param ftpPassword ftp 密码
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*/
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public void connect(String ftpServer, int ftpPort, String ftpUsername, String ftpPassword) {
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ftp = new FTPClient();
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try {
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ftp.setControlEncoding("UTF-8");
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ftp.setRemoteHost(ftpServer);
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ftp.setRemotePort(ftpPort);
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ftp.setTimeout(6000);
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ftp.setConnectMode(FTPConnectMode.ACTIVE);
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ftp.connect();
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ftp.login(ftpUsername, ftpPassword);
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ftp.setType(FTPTransferType.BINARY);
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} catch (Exception e) {
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e.printStackTrace();
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ftp = null;
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}
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}
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/**
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* 更改ftp路径
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*
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* @param ftp
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* @param dirName
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* @return
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*/
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public boolean checkDirectory(FTPClient ftp, String dirName) {
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boolean flag;
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try {
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ftp.chdir(dirName);
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flag = true;
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} catch (Exception e) {
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e.printStackTrace();
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flag = false;
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}
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return flag;
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}
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/**
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* 断开ftp链接
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*/
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public void disconnect() {
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try {
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if (ftp.connected()) {
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ftp.quit();
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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/**
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* 读取ftp文件流
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*
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* @param filePath ftp文件路径
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* @return s
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* @throws Exception
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*/
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public InputStream downloadFile(String filePath) throws Exception {
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InputStream inputStream = null;
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String fileName = "";
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filePath = StringUtils.removeStart(filePath, "/");
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int len = filePath.lastIndexOf("/");
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if (len == -1) {
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if (filePath.length() > 0) {
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fileName = filePath;
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} else {
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throw new Exception("没有输入文件路径");
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}
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} else {
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fileName = filePath.substring(len + 1);
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String type = filePath.substring(0, len);
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String[] typeArray = type.split("/");
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for (String s : typeArray) {
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ftp.chdir(s);
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}
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}
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byte[] data;
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try {
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data = ftp.get(fileName);
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inputStream = new ByteArrayInputStream(data);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return inputStream;
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}
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/**
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* 上传文件到ftp
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*
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* @param file 文件对象
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* @param filePath 上传的路径
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* @throws Exception
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*/
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public void uploadFile(File file, String filePath) throws Exception {
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InputStream inStream = new FileInputStream(file);
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uploadFile(inStream, filePath);
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}
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/**
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* 上传文件到ftp
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*
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* @param inStream 上传的文件流
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* @param filePath 上传路径
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* @throws Exception
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*/
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public void uploadFile(InputStream inStream, String filePath)
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throws Exception {
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if (inStream == null) {
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return;
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}
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String fileName = "";
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filePath = StringUtils.removeStart(filePath, "/");
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int len = filePath.lastIndexOf("/");
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if (len == -1) {
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if (filePath.length() > 0) {
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fileName = filePath;
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} else {
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throw new Exception("没有输入文件路径");
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}
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} else {
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fileName = filePath.substring(len + 1);
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String type = filePath.substring(0, len);
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String[] typeArray = type.split("/");
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for (String s : typeArray) {
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if (!checkDirectory(ftp, s)) {
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ftp.mkdir(s);
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}
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}
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}
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ftp.put(inStream, fileName);
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}
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/**
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* 删除ftp文件
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*
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* @param filePath 文件路径
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* @throws Exception
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*/
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public void deleteFile(String filePath) throws Exception {
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String fileName = "";
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filePath = StringUtils.removeStart(filePath, "/");
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int len = filePath.lastIndexOf("/");
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if (len == -1) {
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if (filePath.length() > 0) {
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fileName = filePath;
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} else {
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throw new Exception("没有输入文件路径");
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}
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} else {
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fileName = filePath.substring(len + 1);
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String type = filePath.substring(0, len);
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String[] typeArray = type.split("/");
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for (String s : typeArray) {
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if (checkDirectory(ftp, s)) {
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ftp.chdir(s);
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}
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}
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}
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ftp.delete(fileName);
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}
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/*
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切换目录
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public void changeDirectory(String path) {
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if (!ValidateUtils.isEmpty(path)) {
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try {
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ftp.chdir(path);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}*/
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public static void main(String[] args) {
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try { // 从ftp下载文件
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FtpHelper ftp = new FtpHelper("192.168.10.80", 21, "lxw", "lxw810412026");
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File file = new File("D:\\1.doc");
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ftp.uploadFile(file, "test/1.doc");
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ftp.disconnect();
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} catch (Exception e) {
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e.printStackTrace();
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}
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System.out.println(FileDirPath.getFileDirName());
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}
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}
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