FTP上传，下载，删除 - ☀️Terry

公告

话不多说，直接上代码

pom依赖

<!-- FTP支持 -->
        <dependency>
            <groupId>commons-net</groupId>
            <artifactId>commons-net</artifactId>
            <version>3.6</version>
        </dependency>

配置类config

package cn.lsr.core.ftp.config;

/**
 * @Description: ftp 配置类
 * @Package: lsr-microservice
 * @author: Hacker_lsr@126.com
 **/
public class FtpConfig {
    /**
     * ftp服务器地址
     */
    public String hostname;
    /**
     * ftp服务器端口号默认为21
     */
    public Integer port = 21 ;
    /**
     * ftp登录账号
     */
    public String username ;
    /**
     * ftp登录密码
     */
    public String password ;

    //get set
}

注入bean基于springboot

package cn.lsr.core.config.bean;

import cn.lsr.core.ftp.config.FtpConfig;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @Description: bean配置
 * @Package: lsr-microservice
 * @author: Hacker_lsr@126.com
 **/
@Configuration
public class BeanConfigManager {
    @Bean
    @ConfigurationProperties(prefix = "lsr.ftp",ignoreInvalidFields = true)
    @ConditionalOnProperty(prefix = "lsr.ftp",name = "enabled",havingValue = "true")
    public FtpConfig initFtpConfig(){
        return new FtpConfig();
    }
}

对应的application.properties

lsr.ftp.enabled=true
lsr.ftp.hostname=xxx
lsr.ftp.port=21
lsr.ftp.username=xxx
lsr.ftp.password=xxx

工具类 FtpUtils

package cn.lsr.core.ftp;

import cn.lsr.core.ftp.config.FtpConfig;
import cn.lsr.core.util.SpringUtil;
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.*;
import java.net.MalformedURLException;

/**
 * @Description: ftp上传下载工具类
 * @Package: lsr-microservice
 * @author: Hacker_lsr@126.com
 **/
public class FtpUtils {
    private static final Logger LOGGER = LoggerFactory.getLogger(FtpUtils.class);
    /**
     * ftp 配置
     */
    private FtpConfig ftpConfig = SpringUtil.getBean(FtpConfig.class);
    public FTPClient ftpClient = null;
    /**
     * 初始化ftp服务器
     */
    public void initFtpClient() {
        ftpClient = new FTPClient();
        ftpClient.setControlEncoding("utf-8");
        try {
            LOGGER.info("初始化ftp服务器:"+ftpConfig.hostname+":"+ftpConfig.port);
            ftpClient.connect(ftpConfig.hostname, ftpConfig.port); //连接ftp服务器
            ftpClient.login(ftpConfig.username, ftpConfig.password); //登录ftp服务器
            ftpClient.enterLocalPassiveMode();
            int replyCode = ftpClient.getReplyCode(); //是否成功登录服务器
            if(!FTPReply.isPositiveCompletion(replyCode)){
                LOGGER.info("登录ftp服务器:error -->:"+ftpConfig.hostname+":"+ftpConfig.port);
            }
            LOGGER.info("登录ftp服务器:success -->:"+ftpConfig.hostname+":"+ftpConfig.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){
        InputStream inputStream = null;
        try{
            LOGGER.info("================开始上传文件================");
            inputStream = new FileInputStream(new File(originfilename));
            initFtpClient();
            ftpClient.setFileType(ftpClient.BINARY_FILE_TYPE);
            CreateDirecroty(pathname);
            ftpClient.makeDirectory(pathname);
            ftpClient.changeWorkingDirectory(pathname);
            ftpClient.storeFile(fileName, inputStream);
            inputStream.close();
            ftpClient.logout();
            LOGGER.info("================上传文件成功================");
        }catch (Exception e) {
            LOGGER.info("================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){
        try{
            LOGGER.info("================开始上传文件================");
            initFtpClient();
            ftpClient.setFileType(ftpClient.BINARY_FILE_TYPE);
            CreateDirecroty(pathname);
            ftpClient.makeDirectory(pathname);
            ftpClient.changeWorkingDirectory(pathname);
            ftpClient.storeFile(fileName, inputStream);
            inputStream.close();
            ftpClient.logout();
            LOGGER.info("================上传文件成功================");
        }catch (Exception e) {
            LOGGER.info("================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) {
                LOGGER.info("进入文件夹" + directory + " 成功！");
            } else {
                LOGGER.info("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){
        FTPClient ftpClient = null;
        boolean flag = false;
        try {
            LOGGER.info("开始删除文件{}",filename);
            //切换FTP目录
            ftpClient.changeWorkingDirectory(pathname);
            ftpClient.dele(filename);
            ftpClient.logout();
            flag = true;
            LOGGER.info("删除文件{}成功。",filename);
        } catch (Exception e) {
            flag=false;
            LOGGER.info("删除文件{}失败！！。",filename);
            e.printStackTrace();
        } finally {
            if(ftpClient.isConnected()){
                try{
                    ftpClient.disconnect();
                }catch(IOException e){
                    e.printStackTrace();
                }
            }
        }
        return flag;
    }

    public static void main(String[] args) {
        FtpUtils ftp =new FtpUtils();
        ftp.uploadFile("/opt/ftp", "txc.sql", "/Users/lsr/Desktop/txc.sql");
        //ftp.downloadFile("/opt/ftp", "txc.sql", "/Users/lsr/");
        //ftp.deleteFile("/opt/ftp", "txc.sql");
        System.out.println("ok");
    }
}

end

posted on 2020-03-27 17:28 ☀️Terry 阅读(337) 评论(0) 编辑收藏举报

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