Question

我在amazon s3 bucket中上传我的图片。我在一个单独的类Amazons3中编写我的代码，我在类method.how中获取了一个错误实例变量s3来解决这个错误。我正在为变量初始化创建一个构造函数。你们可以帮助我。

-(id) init
   {
    self = [super init];
    if(self)
    {

        if(self.s3 == nil)
        {
            // Initial the S3 Client.
            self.s3 = [[AmazonS3Client alloc] initWithAccessKey:ACCESS_KEY_ID withSecretKey:SECRET_KEY];
        }
    }
    return self;
}

 +(void)uploadImage:(Products *)product
 {

    NSData *uploadData = [NSData dataWithContentsOfFile:[Util getFilePathForFileName:[NSString stringWithFormat:@"%@ios.mp4",product.productImageUrl]]];
    S3PutObjectRequest *por = [[S3PutObjectRequest alloc] initWithKey:[NSString stringWithFormat:@"%@.mp4",product.productImageUrl] inBucket:BUCKET_NAME];
    por.contentType = @"application/octet-stream";
    por.cannedACL   = [S3CannedACL publicRead];
    por.data = uploadData;
    S3PutObjectResponse *putObjectResponse = [s3 putObject:por];
    if(putObjectResponse.error !=nil)
    [self performSelectorOnMainThread:@selector(showCheckErrorMessage:) withObject:putObjectResponse.error  waitUntilDone:NO];
 }

Answer 1

您的uploadImage:可能必须是实例方法。将其签名更改为-(void)uploadImage:(Products *)product。

您的错误非常自我解释：无法在类方法（每个类）中访问实例属性（每个对象）。您需要一个instanced对象来访问对象属性;）

在类方法中访问的实例变量s3

1 个答案: