用FileZillaServer搭建FTP服务服务端、客户端

1. ## 下载地址

[https://www.filezilla.cn/download/client] (客户端下载)
[https://www.filezilla.cn/download/server] (服务端下载)

2. ## 搭建服务端
安装完服务端后,连接本地服务器

有可能会连接失败，需要生成证书，点击编辑–>设置–>SSL/TLS设置


生成证书之后就可以正常连接了。连接之后，点击编辑–>用户 创建客户端连接用户

3. ## 搭建客户端
上述操作完成后，可以搭建客户端环境了。
安装完客户端环境，直接输入服务端ip以及创建用户就可以连接(FTP默认端口是21)。

4. ## 客户端用代码进行文件上传和下载

import org.apache.commons.net.ftp.FTPClient;import org.apache.commons.net.ftp.FTPFile;import org.apache.commons.net.ftp.FTPReply;import java.io.*;import java.net.MalformedURLException;public class FtpUtils {//ftp服务器地址public String hostname = "127.0.0.1";//ftp服务器端口号默认为21public Integer port = 21 ;//ftp登录账号public String username = "FileZillaUser";//ftp登录密码public String password = "FileZillaUser";public FTPClient ftpClient = null;/*** 初始化ftp服务器*/public void initFtpClient() {ftpClient = new FTPClient();ftpClient.setControlEncoding("utf-8");try {System.out.println("connecting...ftp服务器:"+this.hostname+":"+this.port);ftpClient.connect(hostname, port); //连接ftp服务器ftpClient.login(username, password); //登录ftp服务器int replyCode = ftpClient.getReplyCode(); //是否成功登录服务器if(!FTPReply.isPositiveCompletion(replyCode)){System.out.println("connect failed...ftp服务器:"+this.hostname+":"+this.port);}System.out.println("connect successfu...ftp服务器:"+this.hostname+":"+this.port);}catch (MalformedURLException e) {e.printStackTrace();}catch (IOException e) {e.printStackTrace();}}/*** 上传文件* @param pathname ftp服务保存地址* @param fileName 上传到ftp的文件名* @param originfilename 待上传文件的名称（绝对地址） ** @return*/public boolean uploadFile( String pathname, String fileName,String originfilename){boolean flag = false;InputStream inputStream = null;try{System.out.println("开始上传文件");inputStream = new FileInputStream(new File(originfilename));initFtpClient();ftpClient.setFileType(ftpClient.BINARY_FILE_TYPE);//CreateDirecroty(pathname); ftpClient.enterLocalPassiveMode(); ftpClient.setControlEncoding("utf-8");ftpClient.makeDirectory(pathname);//创建文件夹ftpClient.changeWorkingDirectory(pathname);//更换文件夹System.out.println("fileName1:"+fileName);flag=ftpClient.storeFile("123.docx", inputStream);inputStream.close();ftpClient.logout();System.out.println("是否上传成功："+flag);flag = true;System.out.println("上传文件成功");}catch (Exception e) {System.out.println("上传文件失败");e.printStackTrace();}finally{if(ftpClient.isConnected()){try{ftpClient.disconnect();}catch(IOException e){e.printStackTrace();}}if(null != inputStream){try {inputStream.close();} catch (IOException e) {e.printStackTrace();}}}return true;}/*** 上传文件* @param pathname ftp服务保存地址* @param fileName 上传到ftp的文件名* @param inputStream 输入文件流* @return*/public boolean uploadFile( String pathname, String fileName,InputStream inputStream){boolean flag = false;try{System.out.println("开始上传文件");initFtpClient();ftpClient.setFileType(ftpClient.BINARY_FILE_TYPE);System.out.println("开始上传文件:"+fileName+" 到:"+pathname);//CreateDirecroty(pathname);ftpClient.makeDirectory(pathname);ftpClient.changeWorkingDirectory(pathname);ftpClient.storeFile(fileName, inputStream);inputStream.close();ftpClient.logout();flag = true;System.out.println("上传文件成功");}catch (Exception e) {System.out.println("上传文件失败");e.printStackTrace();}finally{if(ftpClient.isConnected()){try{ftpClient.disconnect();}catch(IOException e){e.printStackTrace();}}if(null != inputStream){try {inputStream.close();} catch (IOException e) {e.printStackTrace();}}}return true;}//改变目录路径public boolean changeWorkingDirectory(String directory) {boolean flag = true;try {flag = ftpClient.changeWorkingDirectory(directory);if (flag) {System.out.println("进入文件夹" + directory + " 成功！");} else {System.out.println("进入文件夹" + directory + " 失败！开始创建文件夹");}} catch (IOException ioe) {ioe.printStackTrace();}return flag;}//创建多层目录文件，如果有ftp服务器已存在该文件，则不创建，如果无，则创建public boolean CreateDirecroty(String remote) throws IOException {boolean success = true;String directory = remote + "/";// 如果远程目录不存在，则递归创建远程服务器目录if (!directory.equalsIgnoreCase("/") && !changeWorkingDirectory(new String(directory))) {int start = 0;int end = 0;if (directory.startsWith("/")) {start = 1;} else {start = 0;}end = directory.indexOf("/", start);String path = "";String paths = "";while (true) {String subDirectory = new String(remote.substring(start, end).getBytes("GBK"), "iso-8859-1");path = path + "/" + subDirectory;if (!existFile(path)) {if (makeDirectory(subDirectory)) {changeWorkingDirectory(subDirectory);} else {System.out.println("创建目录[" + subDirectory + "]失败");changeWorkingDirectory(subDirectory);}} else {changeWorkingDirectory(subDirectory);}paths = paths + "/" + subDirectory;start = end + 1;end = directory.indexOf("/", start);// 检查所有目录是否创建完毕if (end <= start) {break;}}}return success;}//判断ftp服务器文件是否存在public boolean existFile(String path) throws IOException {boolean flag = false;FTPFile[] ftpFileArr = ftpClient.listFiles(path);if (ftpFileArr.length > 0) {flag = true;}return flag;}//创建目录public boolean makeDirectory(String dir) {boolean flag = true;try {flag = ftpClient.makeDirectory(dir);if (flag) {System.out.println("创建文件夹" + dir + " 成功！");} else {System.out.println("创建文件夹" + dir + " 失败！");}} catch (Exception e) {e.printStackTrace();}return flag;}/** * 下载文件 ** @param pathname FTP服务器文件目录 ** @param filename 文件名称 ** @param localpath 下载后的文件路径 ** @return */public boolean downloadFile(String pathname, String filename, String localpath){boolean flag = false;OutputStream os=null;try {System.out.println("开始下载文件");initFtpClient();//切换FTP目录ftpClient.changeWorkingDirectory(pathname);FTPFile[] ftpFiles = ftpClient.listFiles();for(FTPFile file : ftpFiles){if(filename.equalsIgnoreCase(file.getName())){File localFile = new File(localpath + "/" + file.getName());os = new FileOutputStream(localFile);ftpClient.retrieveFile(file.getName(), os);os.close();}}ftpClient.logout();flag = true;System.out.println("下载文件成功");} catch (Exception e) {System.out.println("下载文件失败");e.printStackTrace();} finally{if(ftpClient.isConnected()){try{ftpClient.disconnect();}catch(IOException e){e.printStackTrace();}}if(null != os){try {os.close();} catch (IOException e) {e.printStackTrace();}}}return flag;}/** * 删除文件 ** @param pathname FTP服务器保存目录 ** @param filename 要删除的文件名称 ** @return */public boolean deleteFile(String pathname, String filename){boolean flag = false;try {System.out.println("开始删除文件");initFtpClient();//切换FTP目录ftpClient.changeWorkingDirectory(pathname);ftpClient.dele(filename);ftpClient.logout();flag = true;System.out.println("删除文件成功");} catch (Exception e) {System.out.println("删除文件失败");e.printStackTrace();} finally {if(ftpClient.isConnected()){try{ftpClient.disconnect();}catch(IOException e){e.printStackTrace();}}}return flag;}}在这里插入代码片