springBoot整合ftp上傳圖片功能

知識點：

       springBoot後端項目，接收前端框架傳到的圖片，把圖片上傳到ftp圖片服務器上

注意：在上傳的過程當中可能回出現，能夠建立文件夾，可是圖片上傳不了的問題；

嘗試了網上的不少方法，最後將filename改成全路徑上傳成功

 

1. pom.xml中引入依賴的包

<!-- 加入上傳文件組件 -->
<!-- https://mvnrepository.com/artifact/commons-net/commons-net -->
<dependency>
   <groupId>commons-net</groupId>
   <artifactId>commons-net</artifactId>
   <version>3.3</version>
</dependency>


2.ftp上傳工具類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服務器ip地址
    private static final String FTP_ADDRESS = "101.132.1.113";
    //端口號
    private static final int FTP_PORT = 21;
    //用戶名
    private static final String FTP_USERNAME = "ftp";
    //密碼
    private static final String FTP_PASSWORD = "123456";
    //圖片路徑
    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);// 鏈接FTP服務器
            ftp.login(FTP_USERNAME, FTP_PASSWORD);// 登陸
            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層接口 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@Controllerpublic class FtpFileUploadController {    //ftp處理文件上傳    @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上傳成功！");            filePath=fileName;        }        return  filePath;  //該路徑圖片名稱，前端框架可用ngnix指定的路徑+filePath,便可訪問到ngnix圖片服務器中的圖片    }}