知识点：

       springBoot后端项目，接收前端框架传到的图片，把图片上传到ftp图片服务器上

 

1. pom.xml中引入依赖的包

     
     
     
     
      commons-net
      
     
      commons-net
      
     
      3.3
      
     2.ftp上传工具类FtpFileUtil.java

package com.hand.hand.util; import org.apache.commons.net.ftp.FTPClient; import org.apache.commons.net.ftp.FTPReply; import java.io.IOException; import java.io.InputStream; /** * Created by nishuai on 2018/1/12. */ public class FtpFileUtil { //ftp服务器ip地址 private static final String FTP_ADDRESS = "101.132.1.113"; //端口号 private static final int FTP_PORT = 21; //用户名 private static final String FTP_USERNAME = "ftp"; //密码 private static final String FTP_PASSWORD = "123456"; //图片路径 private static final String FTP_BASEPATH = "/home/ftpadmin/health/images"; public static boolean uploadFile(String originFileName,InputStream input){ boolean success = false; FTPClient ftp = new FTPClient(); ftp.setControlEncoding("GBK"); try { int reply; ftp.connect(FTP_ADDRESS, FTP_PORT);// 连接FTP服务器 ftp.login(FTP_USERNAME, FTP_PASSWORD);// 登录 reply = ftp.getReplyCode(); if (!FTPReply.isPositiveCompletion(reply)) { ftp.disconnect(); return success; } ftp.setFileType(FTPClient.BINARY_FILE_TYPE); ftp.makeDirectory(FTP_BASEPATH ); ftp.changeWorkingDirectory(FTP_BASEPATH ); ftp.storeFile(originFileName,input); input.close(); ftp.logout(); success = true; } catch (IOException e) { e.printStackTrace(); } finally { if (ftp.isConnected()) { try { ftp.disconnect(); } catch (IOException ioe) { } } } return success; } }

3.controller层接口 FtpFileUploadController.java

package com.hand.hand.controller; import com.hand.hand.util.FtpFileUtil; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.*; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpServletRequest; import java.io.IOException; import java.io.InputStream; /** * Created by nishuai on 2017/12/26. */ @CrossOrigin @Controller public class FtpFileUploadController { //ftp处理文件上传 @RequestMapping(value="/ftpuploadimg", method = RequestMethod.POST) public @ResponseBody String uploadImg(@RequestParam("file") MultipartFile file, HttpServletRequest request) throws IOException { String fileName = file.getOriginalFilename(); InputStream inputStream=file.getInputStream(); String filePath=null; Boolean flag=FtpFileUtil.uploadFile(fileName,inputStream); if(flag==true){ System.out.println("ftp上传成功！"); filePath=fileName; } return filePath; //该路径图片名称，前端框架可用ngnix指定的路径+filePath,即可访问到ngnix图片服务器中的图片 } }