Question

我正在使用Three20框架编写iPhone应用程序，现在我使用预先签名的URL将图像上传到S3，但还没有成功。

以下是代码

- (void)uploadImage {
    TTURLRequest *request = [TTURLRequest requestWithURL:_presignedUrl delegate:self];

    request.httpMethod = @"POST";
    request.cachePolicy = TTURLRequestCachePolicyNoCache; 
    request.cacheExpirationAge = TT_CACHE_EXPIRATION_AGE_NEVER;

    // add the image file
    [request addFile:UIImageJPEGRepresentation(_image, 1.0)
            mimeType:@"image/jpeg" 
            fileName:_key];

    [request setValue:@"MyApp/1.0" forHTTPHeaderField:@"User-Agent"];
    [request setValue:@"image/jpeg" forHTTPHeaderField:@"Content-type"];

    TTURLXMLResponse *response = [[TTURLXMLResponse alloc] init];
    request.response = response;
    [response release];

    [request send];
}

_key是文件名，例如test.jpg放在

_presignedUrl类似于以下

https://s3.amazonaws.com/<bucket name>/test.jpg?Expires=(expires)&AWSAccessKeyId= (AWSAccessKeyId)&Signature=(Signature)

使用AWS Java SDK在服务器端生成预签名URL，使用GeneratePresignedUrlRequest，test.jpg作为密钥，POST也作为http方法

有什么遗漏或错误吗？

使用预先签名的URL获取403将图像上传到S3

0 个答案: