准备工作

• 创建Bucket
  • 标准存储
• 在RAM访问控制中创建用户
  • 保存AccessKey ID 和 AccessKey Secret （重要，bucket创建完成后才能显示且仅此一次）
  • 设置权限 AliyunOSSFullAccess

java实现用户头像的上传

• 依赖引入

   <!-- OSS-->
   <dependency>
       <groupId>com.aliyun.oss</groupId>
       <artifactId>aliyun-sdk-oss</artifactId>
       <version>3.10.2</version>
   </dependency>
  

• application.yml配置

  #----------阿里云OSS配置--------------
  aliyun:
    oss:
      endpoint: [Endpoint（地域节点）——外网访问]
      access-key-id: [AccessKey ID]
      access-key-secret: [AccessKey Secret]
      bucketname: [bucketName]
  

• OSSConfig配置类

  @ConfigurationProperties(prefix = "aliyun.oss")
  @Configuration
  @Data
  public class OSSConfig {
  
      private String endpoint;
      private String accessKeyId;
      private String accessKeySecret;
      private String bucketname;
  }
  

• 上传接口Controller

  @RestController
  @RequestMapping("/api/user_img")
  public class AccountController {
      @Autowired
      private FileService fileService;
      /**
       * 文件上传 最大1M
       * @param file
       * @return
       */
      @PostMapping("upload")
      public JsonData uploadUserImg(@RequestPart("file")MultipartFile file){
          String result = fileService.uploadUserImg(file);
  
          return result!=null ? JsonData.buildSuccess(result):JsonData.buildResult("用户头像文件上传失败");
      }
  }
  

• 上传方法实现

  public interface FileService {
      String uploadUserImg(MultipartFile file);
  }
  
  
  
  
  @Service
  @Slf4j
  public class FileServiceImpl implements FileService {
      @Autowired
      private OSSConfig ossConfig;
      
      @Override
      public String uploadUserImg(MultipartFile file) {
          String bucketname = ossConfig.getBucketname();
          String endpoint = ossConfig.getEndpoint();
          String accessKeyId = ossConfig.getAccessKeyId();
          String accessKeySecret = ossConfig.getAccessKeySecret();
  
          //oss客户端
          OSS ossClient = new OSSClientBuilder().build(endpoint,accessKeyId,accessKeySecret);
  
          //获取文件原始名称 xxx.jpg
          String originalFilename = file.getOriginalFilename();
  
          //jdk8语法日期格式
          LocalDateTime ldt = LocalDateTime.now();
          DateTimeFormatter pattern = DateTimeFormatter.ofPattern("yyyy/MM/dd");
  
          // user/2023/07/18/asdwad
          String folder = pattern.format(ldt);
          String fileName = CommonUtil.generateUUID();
          String extendsion = originalFilename.substring(originalFilename.lastIndexOf("."));
  
          //在oss上的bucket 创建文件夹
          String newFileName = "user/"+folder+"/"+fileName+extendsion;
  
          try {
              PutObjectResult putObjectResult = ossClient.putObject(bucketname, newFileName, file.getInputStream());
              //拼装返回路径
              if(putObjectResult!=null){
                  String imgUrl = "https://"+bucketname+"."+endpoint+"/"+newFileName;
                  return imgUrl;
              }
  
          } catch (IOException e) {
              log.info("文件上传失败");
          }finally {
              ossClient.shutdown();
          }
  
          return null;
      }
  }