ios – 未设置NSURLSessionConfiguration HTTPAdditionalHeaders

授权标头在NSURLSessionConfiguration中设置,但它未附加到NSURLSessionDataTask.这是Foundation框架中的错误吗?
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
[configuration setHTTPAdditionalHeaders:@{@"Authorization":@"123"}];

// Initialize session with NSURLSessionConfiguration
NSURLSession *session = [NSURLSession sessionWithConfiguration:configuration];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
NSURLSessionDataTask *sessionTask = [session dataTaskWithRequest:request
                                        completionHandler:^(NSData *data,NSURLResponse *response,NSError *error) {
}];

[sessionTask resume];

解决方法

我在Swift中尝试这个并且它可以工作
var sessionConfig = NSURLSessionConfiguration.defaultSessionConfiguration()
    var xHTTPAdditionalHeaders: [NSObject : AnyObject] = ["X-test":"taly"]
    sessionConfig.HTTPAdditionalHeaders = xHTTPAdditionalHeaders
    let session = NSURLSession(configuration: sessionConfig)

    let task = session.dataTaskWithURL(url,completionHandler: {data,response,error -> Void in

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