package com.java110.utils.util;
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import org.apache.commons.net.ftp.FTP;
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import org.apache.commons.net.ftp.FTPClient;
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import org.apache.commons.net.ftp.FTPFile;
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import org.apache.commons.net.ftp.FTPReply;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.web.multipart.MultipartFile;
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import java.io.*;
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import java.util.UUID;
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public class FtpUpload {
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private static Logger logger = LoggerFactory.getLogger(FtpUpload.class);
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/*
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* private static String server = "www.datasvisser.cn"; //地址 private static
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* int port = 41023;//端口号 private static String userName = "jntechFTP1";//登录名
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* private static String userPassword ="MXUsssMjhssE+*=a3C4\\0";//密码
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*/
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private static String ftpPath = "uploadFiles"; // 文件上传目录
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private static FTPClient ftpClient = new FTPClient();
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private static String LOCAL_CHARSET = "GBK";
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private static String SERVER_CHARSET = "ISO-8859-1";
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private final static String localpath = "F:/";//下载到F盘下
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private final static String fileSeparator = System.getProperty("file.separator");
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/*
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*文件上传工具方法
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*/
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public static String upload(MultipartFile uploadFile, String server, int port,
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String userName, String userPassword, String ftpPath) {
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String fileName = "";
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try {
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// request.setCharacterEncoding("utf-8");
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ftpClient.connect(server, port);
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ftpClient.login(userName, userPassword);
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ftpClient.enterLocalPassiveMode();
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ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
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mkDir(ftpPath);// 创建目录
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// 设置上传目录 must
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ftpClient.changeWorkingDirectory(ftpPath);
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if (FTPReply.isPositiveCompletion(ftpClient.sendCommand("OPTS UTF8", "ON"))) {// 开启服务器对UTF-8的支持，如果服务器支持就用UTF-8编码，否则就使用本地编码（GBK）.
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LOCAL_CHARSET = "UTF-8";
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}
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//fileName = new String(uploadFile.getOriginalFilename().getBytes(LOCAL_CHARSET), SERVER_CHARSET);
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/*fileName = id + "-" + fileName;// 构建上传到服务器上的文件名 20-文件名.后缀*/
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fileName = UUID.randomUUID().toString() + "." + uploadFile.getOriginalFilename().substring(uploadFile.getOriginalFilename().lastIndexOf(".") + 1);
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FTPFile[] fs = ftpClient.listFiles(fileName);
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if (fs.length == 0) {
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System.out.println("this file not exist ftp");
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} else if (fs.length == 1) {
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System.out.println("this file exist ftp");
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ftpClient.deleteFile(fs[0].getName());
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}
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InputStream is = uploadFile.getInputStream();
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boolean saveFlag = ftpClient.storeFile(fileName, is);
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is.close();
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if (!saveFlag) {
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throw new IllegalArgumentException("存储文件失败");
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}
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} catch (Exception e) {
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logger.error("上传文件失败", e);
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throw new IllegalArgumentException("上传文件失败");
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} finally {
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try {
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ftpClient.disconnect();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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return fileName;
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}
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/*
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*文件下载工具方法
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*/
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public static byte[] downFileByte(String remotePath, String fileName, String server, int port, String userName, String userPassword) throws Exception {
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ftpClient.connect(server, port);
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ftpClient.login(userName, userPassword);
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ftpClient.enterLocalPassiveMode();
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if (remotePath != null && !remotePath.equals("")) {
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ftpClient.changeWorkingDirectory(remotePath);
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System.out.println("file success");
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}
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byte[] return_arraybyte = null;
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if (ftpClient != null) {
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try {
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FTPFile[] files = ftpClient.listFiles();
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for (FTPFile file : files) {
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String f = new String(file.getName().getBytes("iso-8859-1"), "utf-8");//防止乱码
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System.out.println(f);
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System.out.println(f.equals(fileName));
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if (f.equals(fileName)) {
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InputStream ins = ftpClient.retrieveFileStream(file.getName());//需使用file.getName获值，若用f会乱码
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ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
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byte[] buf = new byte[204800];
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int bufsize = 0;
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while ((bufsize = ins.read(buf, 0, buf.length)) != -1) {
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byteOut.write(buf, 0, bufsize);
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}
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return_arraybyte = byteOut.toByteArray();
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File localFile = new File(localpath + fileSeparator + f);
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OutputStream is = new FileOutputStream(localFile);
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ftpClient.retrieveFile(f, is);
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is.close();
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byteOut.close();
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ins.close();
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break;
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}
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}
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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closeConnect();
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}
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}
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return return_arraybyte;
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}
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public static void closeConnect() {
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try {
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ftpClient.disconnect();
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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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* 选择上传的目录，没有创建目录
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*
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* @param ftpPath 需要上传、创建的目录
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* @return
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*/
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public static boolean mkDir(String ftpPath) {
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if (!ftpClient.isConnected()) {
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return false;
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}
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try {
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// 将路径中的斜杠统一
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char[] chars = ftpPath.toCharArray();
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StringBuffer sbStr = new StringBuffer(256);
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for (int i = 0; i < chars.length; i++) {
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if ('\\' == chars[i]) {
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sbStr.append('/');
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} else {
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sbStr.append(chars[i]);
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}
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}
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ftpPath = sbStr.toString();
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// System.out.println("ftpPath:" + ftpPath);
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if (ftpPath.indexOf('/') == -1) {
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// 只有一层目录
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ftpClient.makeDirectory(new String(ftpPath.getBytes(), "iso-8859-1"));
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ftpClient.changeWorkingDirectory(new String(ftpPath.getBytes(), "iso-8859-1"));
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} else {
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// 多层目录循环创建
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String[] paths = ftpPath.split("/");
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for (int i = 0; i < paths.length; i++) {
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ftpClient.makeDirectory(new String(paths[i].getBytes(), "iso-8859-1"));
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ftpClient.changeWorkingDirectory(new String(paths[i].getBytes(), "iso-8859-1"));
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}
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}
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return true;
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} catch (Exception e) {
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e.printStackTrace();
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return false;
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}
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}
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}
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