Question

我正在使用mattt的AFAmazonS3Manager library将图像发布到Amazon S3，基本上遵循那里的示例。上传工作正常，但是当我从S3下载文件时，它有那些使文件无效的标题。

--Boundary+37BFEC640AAEA6AB
Content-Disposition: form-data; name="key"

test.png
--Boundary+37BFEC640AAEA6AB
Content-Disposition: form-data; name="file"; filename=".png"
Content-Type: image/png

âPNG


IHDR,êu]{iDOT»(»»-0∫´@IDATx\ΩÂü◊πÆ≠ø‚ÏΩOíùƒ(ã,Àñôb;vÏƒÃ33Ãh4ÃÃÃ‘C›”√åb∂d…≤dvÃ±„Äì≥˜9ÔóÁΩÓUS≤≤?<øµ™jUUwO◊’˜kÕ¨≥Côv~4«Nd⁄©¡,,€NÂÿÒ˛l;÷ómSΩÖnH¥ÜÚ8k≠I¥æñTÌÃ≤Èû

...

当我删除标题时，文件变为有效，我可以使用预览或Photoshop打开它。

创建图像的代码如下：

// Save image to Amazon S3. Save URL for user dictionary.
    NSData *pngImage = UIImagePNGRepresentation(profilePicture);
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *imagePath =[documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.png", chatIdString]];
    if ([pngImage writeToFile:imagePath atomically:NO]) {
        NSLog(@"Successfully cached profile picture to %@.", imagePath);
        AFAmazonS3Manager *s3Manager = [[AFAmazonS3Manager alloc] initWithAccessKeyID:AWSAccessKeyId secret:AWSSecretKey];
        s3Manager.responseSerializer = [AFOnoResponseSerializer XMLResponseSerializer];
        s3Manager.requestSerializer.region = AFAmazonS3USStandardRegion;
        s3Manager.requestSerializer.bucket = @"checkchat";
        [s3Manager.requestSerializer setValue:@"image/png" forHTTPHeaderField:@"Content-Type"];

        [s3Manager putObjectWithFile:imagePath...

我正在使用PUT请求，根据Amazon S3的REST API参考。知道如何在S3上存储有效图像吗？

使用AFAmazonS3Manager上载PNG图像 - 无效的标题

0 个答案: