问Code=-1001“请求超时。”

EN

let request = NSMutableURLRequest(URL: url)
request.HTTPMethod = "POST"    
request.HTTPBody = myUrlContents.dataUsingEncoding(NSUTF8StringEncoding)

request.timeoutInterval = 15

request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.setValue("application/json", forHTTPHeaderField: "Accept")
request.setValue("\(myUrlContents.dataUsingEncoding(NSUTF8StringEncoding)!.length)", forHTTPHeaderField: "Content-Length")
request.setValue("en-US", forHTTPHeaderField: "Content-Language")

Alamofire.request(request)
      .validate()
      .responseJSON { [weak self] response in

      if response.result.isSuccess {
            if let result = response.result.value {
                  print("Result: \(result)")

                  completion(result: result as! NSDictionary)
            }
      }
      else {
            print(response.debugDescription)
       }
}

[Request]: <NSMutableURLRequest: 0x18855620> { URL: http://....... (url)}
[Response]: nil
[Data]: 0 bytes
[Result]: FAILURE: Error Domain=NSURLErrorDomain Code=-1001 "The request timed out." UserInfo={NSErrorFailingURLStringKey=http://.....(url) NSErrorFailingURLKey=http://.....(url), NSLocalizedDescription=The request timed out., _kCFStreamErrorDomainKey=4, NSUnderlyingError=0x18a08900 {Error Domain=kCFErrorDomainCFNetwork Code=-1001 "(null)" UserInfo={_kCFStreamErrorDomainKey=4, _kCFStreamErrorCodeKey=-2102}}}
[Timeline]: Timeline: { "Request Start Time": 493582123.103, "Initial Response Time": 493582138.254, "Request Completed Time": 493582138.254, "Serialization Completed Time": 493582138.256, "Latency": 15.151 secs, "Request Duration": 15.151 secs, "Serialization Duration": 0.002 secs, "Total Duration": 15.153 secs }