Question

我正在尝试使用以下逻辑将图像上传到Amazon S3：

- (void)uploadImageToS3: (UIImage *)image {
  imageData = UIImageJPEGRepresentation(image, 0.7);

  AWSS3GetPreSignedURLRequest *getPreSignedURLRequest = [AWSS3GetPreSignedURLRequest new];
  getPreSignedURLRequest.bucket = @"dummyimages";
  getPreSignedURLRequest.key = @"test.jpg";

  getPreSignedURLRequest.HTTPMethod = AWSHTTPMethodPOST;
  getPreSignedURLRequest.expires = [NSDate dateWithTimeIntervalSinceNow:3600];

  NSString *fileContentTypeString = @"text/plain";
  getPreSignedURLRequest.contentType = fileContentTypeString;

  [[[AWSS3PreSignedURLBuilder defaultS3PreSignedURLBuilder] getPreSignedURL:getPreSignedURLRequest] continueWithBlock:^id(AWSTask *task) {

    if (task.error) {
        NSLog(@"Error: %@", task.error);
    } else {

        NSURL *presignedURL = task.result;
        NSLog(@"upload presignedURL is \n%@", presignedURL);

        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:presignedURL];
        request.cachePolicy = NSURLRequestReloadIgnoringLocalCacheData;
        [request setHTTPMethod:@"PUT"];
        [request setValue:fileContentTypeString forHTTPHeaderField:@"Content-Type"];

        NSURLSessionUploadTask *uploadTask = [[NSURLSession sharedSession] uploadTaskWithRequest:request fromData:imageData completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {

            if (error) {
                NSLog(@"Upload errer: %@", error);
            }
            NSLog(@"Done");
        }];

        [uploadTask resume];
    }

    return nil;

 }];
}

我收到这样的错误：
＆＃39; NSInternalInconsistencyException＆＃39;，原因：＆＃39;服务配置为nil。在使用此方法之前，您需要配置Info.plist或设置defaultServiceConfiguration 。

可以帮助解决这个问题感谢

Answer 1

在准备iOS 9应用部分中查看http://docs.aws.amazon.com/mobile/sdkforios/developerguide/setup.html。

Answer 2

您需要在负责管理Amazon身份的类中configure your service configuration。

如果您使用较新版本的MobileHub，那么AWS常量在info.plist中配置，你需要检查这个

如果您使用的是较早版本的MobileHub，则常量文件为AWSConfiguration。

负责管理身份的类是AWSIdentityManager，其中配置服务的功能是

- (AWSTask *)initializeClients:(NSDictionary *)logins

如果您不使用MobileHub，则需要在自己的身份管理器中实现类似的功能。

Answer 3

为info.Plist文件添加以下代码行

<key>NSExceptionDomains</key>
    <dict>
        <key>amazonaws.com</key>
        <dict>
            <key>NSIncludesSubdomains</key>
            <true/>
            <key>NSThirdPartyExceptionMinimumTLSVersion</key>
            <string>TLSv1.0</string>
            <key>NSThirdPartyExceptionRequiresForwardSecrecy</key>
            <false/>
        </dict>
        <key>amazonaws.com.cn</key>
        <dict>
            <key>NSIncludesSubdomains</key>
            <true/>
            <key>NSThirdPartyExceptionMinimumTLSVersion</key>
            <string>TLSv1.0</string>
            <key>NSThirdPartyExceptionRequiresForwardSecrecy</key>
            <false/>
        </dict>
    </dict>

如何发送多个图像Amazon S3 Server ios objective-c

3 个答案: