SpringBoot集成阿里云OSS图片上传

简述

最近做的公司项目，图片比较多，不想给其存储到自己服务器上，就买了阿里云的OSS服务器来哦进行存储，其实集成第三方平台，一般没什么难度，当然，你要仔细看对方的API文档，这篇主要说一下个人集成OSS的过程

步骤

1、pom.xml中添加OSS的SDK

 com.aliyun.oss
 aliyun-sdk-oss
 2.8.3

2、必备参数

在application.yml中配置参数

bucketName: "空间名称" 
accessKeyId: "你的accessKeyId" 
accessKeySecret: "你的accessKeySecret" 
#OSS对应的区域 
endpoint: http://oss-cn-beijing.aliyuncs.com

这四个参数在你的阿里云控制台中都能找到

①bucketName

②③accessKeyId和accessKeySecret

配置文件格式如图：

3、创建OSS工具类

package com.prereadweb.utils;
 
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.Objectmetadata;
import com.aliyun.oss.model.PutObjectResult;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;
 
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Date;
import java.util.List;
import java.util.Random;
 

@Component
public class OssUtil {
 
  protected static final Logger log = LoggerFactory.getLogger(OssUtil.class);
 
  @Value("${aliyun.endpoint}")
  private String endpoint;
  @Value("${aliyun.accessKeyId}")
  private String accessKeyId;
  @Value("${aliyun.accessKeySecret}")
  private String accessKeySecret;
  @Value("${aliyun.bucketName}")
  private String bucketName;
 
  //文件存储目录
  private String filedir = "userImg/";
 
  
  public String uploadImg2Oss(MultipartFile file) {
    if (file.getSize() > 1024 * 1024 *20) {
      return "图片太大";//RestResultGenerator.createErrorResult(ResponseEnum.PHOTO_TOO_MAX);
    }
    String originalFilename = file.getOriginalFilename();
    String substring = originalFilename.substring(originalFilename.lastIndexOf(".")).toLowerCase();
    Random random = new Random();
    String name = random.nextInt(10000) + System.currentTimeMillis() + substring;
    try {
      InputStream inputStream = file.getInputStream();
      this.uploadFile2OSS(inputStream, name);
      return name;//RestResultGenerator.createSuccessResult(name);
    } catch (Exception e) {
      return "上传失败";//RestResultGenerator.createErrorResult(ResponseEnum.PHOTO_UPLOAD);
    }
  }
 
  
  private String uploadFile2OSS(InputStream instream, String fileName) {
    String ret = "";
    try {
      //创建上传Object的metadata
      Objectmetadata objectmetadata = new Objectmetadata();
      objectmetadata.setContentLength(instream.available());
      objectmetadata.setCacheControl("no-cache");
      objectmetadata.setHeader("Pragma", "no-cache");
      objectmetadata.setContentType(getcontentType(fileName.substring(fileName.lastIndexOf("."))));
      objectmetadata.setContentDisposition("inline;filename=" + fileName);
      //上传文件
 
      OSSClient ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
      PutObjectResult putResult = ossClient.putObject(bucketName, filedir + fileName, instream, objectmetadata);
      ret = putResult.getETag();
    } catch (IOException e) {
      log.error(e.getMessage(), e);
    } finally {
      try {
 if (instream != null) {
   instream.close();
 }
      } catch (IOException e) {
 e.printStackTrace();
      }
    }
    return ret;
  }
 
  public static String getcontentType(String FilenameExtension) {
    if (FilenameExtension.equalsIgnoreCase(".bmp")) {
      return "image/bmp";
    }
    if (FilenameExtension.equalsIgnoreCase(".gif")) {
      return "image/gif";
    }
    if (FilenameExtension.equalsIgnoreCase(".jpeg") ||
 FilenameExtension.equalsIgnoreCase(".jpg") ||
 FilenameExtension.equalsIgnoreCase(".png")) {
      return "image/jpeg";
    }
    if (FilenameExtension.equalsIgnoreCase(".html")) {
      return "text/html";
    }
    if (FilenameExtension.equalsIgnoreCase(".txt")) {
      return "text/plain";
    }
    if (FilenameExtension.equalsIgnoreCase(".vsd")) {
      return "application/vnd.visio";
    }
    if (FilenameExtension.equalsIgnoreCase(".pptx") ||
 FilenameExtension.equalsIgnoreCase(".ppt")) {
      return "application/vnd.ms-powerpoint";
    }
    if (FilenameExtension.equalsIgnoreCase(".docx") ||
 FilenameExtension.equalsIgnoreCase(".doc")) {
      return "application/msword";
    }
    if (FilenameExtension.equalsIgnoreCase(".xml")) {
      return "text/xml";
    }
    return "image/jpeg";
  }
 
  
  public String getImgUrl(String fileUrl) {
    if (!StringUtils.isEmpty(fileUrl)) {
      String[] split = fileUrl.split("/");
      String url = this.getUrl(this.filedir + split[split.length - 1]);
      return url;
    }
    return null;
  }
 
  
  public String getUrl(String key) {
    // 设置URL过期时间为10年 3600l* 1000*24*365*10
    Date expiration = new Date(new Date().getTime() + 3600l * 1000 * 24 * 365 * 10);
    // 生成URL
    OSSClient ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
    URL url = ossClient.generatePresignedUrl(bucketName, key, expiration);
    if (url != null) {
      return url.toString();
    }
    return null;
  }
 
 
  
  public String checkList(List fileList) {
    String fileUrl = "";
    String str = "";
    String photoUrl = "";
    for(int i = 0;i< fileList.size();i++){
      fileUrl = uploadImg2Oss(fileList.get(i));
      str = getImgUrl(fileUrl);
      if(i == 0){
 photoUrl = str;
      }else {
 photoUrl += "," + str;
      }
    }
    return photoUrl.trim();
  }
 
  
  public String checkImage(MultipartFile file){
    String fileUrl = uploadImg2Oss(file);
    String str = getImgUrl(fileUrl);
    return str.trim();
  }
}

 4、controller层代码

  @PostMapping("/postfile")
  public Object fileUpload(@RequestParam(value = "userImg", required = false) MultipartFile file, @RequestParam(value = "userId", required = false) Long userId) {
    return personalService.fileUpload(file, userId);
  }

 5、service层代码

  @Override
  public Map fileUpload(MultipartFile file, Long userId) {
    Map map = new HashMap<>();
    if (Util.isEmpty(file)) {
      System.out.println("文件为空空");
      return checkNull(map);
    }
    UserEntity user = userMapper.fetchUser(userId);
    if(Util.isEmpty(user)){
      map.put("code", UserStatusEnum.USER_NOT_EXISTENCE.intKey());
      map.put("msg", UserStatusEnum.USER_NOT_EXISTENCE.value());
      return map;
    }
    String url = ossUtil.checkImage(file);
    String[] imgUrls = url.split("\?");
    updateUrl(userId, imgUrls[0]);
    Map returnMap = new HashMap<>();
    returnMap.put("imageUrl", imgUrls[0]);
    map.put("data", returnMap);
    returnSuccess(map);
    return map;
  }

总结

对于第三对接来说，一般对方的API文档都会详细说明使用步骤的，所以，只要仔细看对方提供的API文档了，都没什么难的。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。