【已解决】OSS配置问题

阿里官方的 SDK 使用方法还得配置环境变量 access Key、access Secret ，我没有配置，仅把 access Key 和 access Secret 写到了 yml 文件读取，结果上传图片时还是出现下面的问题。

[ ERROR ] [ com.serein.exception.GlobalExceptionHandler : 31 ] - RuntimeException
com.aliyun.oss.common.auth.InvalidCredentialsException: Access key id should not be null or empty.
	at com.aliyun.oss.common.auth.DefaultCredentialProvider.checkCredentials(DefaultCredentialProvider.java:63)
	at com.aliyun.oss.common.auth.DefaultCredentialProvider.<init>(DefaultCredentialProvider.java:38)
	at com.aliyun.oss.common.auth.DefaultCredentialProvider.<init>(DefaultCredentialProvider.java:34)
	at com.aliyun.oss.OSSClientBuilder.getDefaultCredentialProvider(OSSClientBuilder.java:83)
	at com.aliyun.oss.OSSClientBuilder.build(OSSClientBuilder.java:38

解决方法是把 BUCKET_NAME、END_POINT 、ACCESS_KEY_ID 、ACCESS_KEY_SECRET 直接写死到代码中，如下：

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  public static String uploadImageOSS(MultipartFile img) {
    OSS ossClient= new OSSClientBuilder().build(END_POINT, ACCESS_KEY_ID, ACCESS_KEY_SECRET);
    if (!ossClient.doesBucketExist(BUCKET_NAME)) {
      ossClient.createBucket(BUCKET_NAME);
      CreateBucketRequest createBucketRequest = new CreateBucketRequest(BUCKET_NAME);
      createBucketRequest.setCannedACL(CannedAccessControlList.PublicRead);
      ossClient.createBucket(createBucketRequest);
    }
    //filePath是存到oss的文件名，fileUrl是访问的路径
    String filePath = createOSSFileName(img.getOriginalFilename());
    PutObjectRequest putObjectRequest = null;
    try {
      putObjectRequest = new PutObjectRequest(BUCKET_NAME, filePath, img.getInputStream());
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
    PutObjectResult result = ossClient.putObject(putObjectRequest);
    return  "https://" + BUCKET_NAME + "." + END_POINT + "/" + filePath;
  }

然后再次上传图片就出现了下面的问题，因为前面填的是 OSS 内网 oss-cn-beijing-internal.aliyuncs.com ，换成 oss-cn-beijing.aliyuncs.com 外网就 ok 了

[ WARN  ] [ com.aliyun.oss : 70 ] - [Client]Unable to execute HTTP request:
Connect to xxxx.oss-cn-beijing-internal.aliyuncs.com:80
failed: Connection timed out: connect
[ErrorCode]: SocketException
[RequestId]: Unknown

然后图片成功上传到 OSS 了，但是外部并不能访问，如果拿着 url 在浏览器查看，会这样

<Error>
<Code>AccessDenied</Code>
<Message>You have no right to access this object because of bucket acl.</Message>
<RequestId>679391585E3414373911E999</RequestId>
<HostId>blog-backend.oss-cn-beijing.aliyuncs.com</HostId>
<EC>0003-00000001</EC>
<RecommendDoc>https://api.aliyun.com/troubleshoot?q=0003-00000001</RecommendDoc>
</Error>

解决方法就是关闭公共访问，并且设置读写权限为公共读，这样编辑器就可以根据 url 显示出图片了

成功渲染出图片！