更新到iOS 11.1后，.sqlite下载失败。我已经确认我有最新的Alamofire库（4.5.1），我已经卸载并重新安装使用pod。我已经清理了项目并试图调试它但我找不到问题，只是我注意到temporaryURL是零。
我的代码：
let parameters: Parameters = [:]
var filePath: URL?
let destination: (URL, HTTPURLResponse) -> (URL, DownloadRequest.DownloadOptions) = {
(temporaryURL, response) in
if let directoryURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first, let suggestedFilename = response.suggestedFilename {
filePath = directoryURL.appendingPathComponent("\(suggestedFilename)")
return (filePath!, [.removePreviousFile, .createIntermediateDirectories])
}
return (temporaryURL, [.removePreviousFile, .createIntermediateDirectories])
}
Alamofire.download("https://s3-eu-west-1.amazonaws.com/xxx/xxx/xxx.sqlite3", method: .get, parameters: parameters, encoding: JSONEncoding.default, to: destination)
.downloadProgress { progress in
DispatchQueue.main.async
{
/.../
}
}
.validate { request, response, temporaryURL, destinationURL in
/.../
return .success
}
.response { response in
debugPrint(response)
print("Descarga finalizada");
/.../
}
.downloadProgress工作正常。但当它达到100％时，该过程不会继续，并且由于等待时间耗尽而等待它结束（-1001）
控制台输出与调试：
2017-11-07 12:04:28.422333+0100 Target[673:215766] Task <26F62B6A-FEB4-4908-92C9-D3F9C9886C81>.<4> finished with error - code: -1001
Alamofire.DefaultDownloadResponse(request: Optional(https://s3-eu-west-1.amazonaws.com/xxx/xxx/xxx.sqlite3), response: Optional(<NSHTTPURLResponse: 0x1c0235220> { URL: https://s3-eu-west-1.amazonaws.com/xxx/xxx/xxx.sqlite3 } { Status Code: 200, Headers {
"Accept-Ranges" = (
bytes
);
"Content-Length" = (
28086272
);
"Content-Type" = (
"application/octet-stream"
);
Date = (
"Tue, 07 Nov 2017 11:02:52 GMT"
);
Etag = (
"\"xxxxxxxxxxxxxxxxx\""
);
"Last-Modified" = (
"Tue, 07 Nov 2017 01:44:00 GMT"
);
Server = (
AmazonS3
);
"x-amz-id-12" = (
"LiCdsdasdasfsdfdsffgsfdsw3o+npOhfUVLdZ/KlTWgLXdPNPU8iYnZIkeGoRvBkLbKwFFY="
);
"x-amz-request-id" = (
9CD8D133234DB
);
} }), temporaryURL: nil, destinationURL: nil, resumeData: Optional(7043 bytes), error: Optional(Error Domain=NSURLErrorDomain Code=-1001 "Se ha agotado el tiempo de espera." UserInfo={_kCFStreamErrorCodeKey=-2102, NSURLSessionDownloadTaskResumeData=<CFData 0x1c0649390 [0x1b1491310]>{length = 7043, capacity = 16384, bytes = 0x3c3f786d6c2076657273696f6e3d2231 ... 2f706c6973743e0a}, NSUnderlyingError=0x1c0649e10 {Error Domain=kCFErrorDomainCFNetwork Code=-1001 "(null)" UserInfo={_kCFStreamErrorCodeKey=-2102, _kCFStreamErrorDomainKey=4}}, NSLocalizedDescription=Se ha agotado el tiempo de espera., NSErrorFailingURLStringKey=https://s3-eu-west-1.amazonaws.com/xxx/xxx/xxx.sqlite3, NSErrorFailingURLKey=https://s3-eu-west-1.amazonaws.com/xxx/xxx/xxx.sqlite3, _kCFStreamErrorDomainKey=4}), timeline: Timeline: { "Request Start Time": 531745370.759, "Initial Response Time": 531745371.441, "Request Completed Time": 531745468.447, "Serialization Completed Time": 531745468.450, "Latency": 0.682 secs, "Request Duration": 97.688 secs, "Serialization Duration": 0.003 secs, "Total Duration": 97.691 secs }, _metrics: Optional((Task Interval) <_NSConcreteDateInterval: 0x1c003f5c0> (Start Date) 2017-11-07 11:02:50 +0000 + (Duration) 97.667806 seconds = (End Date) 2017-11-07 11:04:28 +0000
(Redirect Count) 0
(Transaction Metrics) (Request) <NSURLRequest: 0x1c00019d0> { URL: https://s3-eu-west-1.amazonaws.com/xxx/xxx/xxx.sqlite3, Method GET, Headers {
Accept = (
"*/*"
);
"Accept-Encoding" = (
"gzip;q=1.0, compress;q=0.5"
);
"Accept-Language" = (
"es-ES;q=1.0, fr-ES;q=0.9, en-ES;q=0.8"
);
Connection = (
"keep-alive"
);
"Content-Type" = (
"application/json"
);
Host = (
"s3-eu-west-1.amazonaws.com"
);
"User-Agent" = (
"Targer/1.7 (com.xxxxx.xxxxx; build:156; iOS 11.1.0) Alamofire/4.5.1"
);
} }
(Response) <NSHTTPURLResponse: 0x1c0030ae0> { URL: https://s3-eu-west-1.amazonaws.com/xxx/xxx/xxx.sqlite3 } { Status Code: 200, Headers {
"Accept-Ranges" = (
bytes
);
"Content-Length" = (
28086272
);
"Content-Type" = (
"application/octet-stream"
);
Date = (
"Tue, 07 Nov 2017 11:02:52 GMT"
);
Etag = (
"\"6c9de7be53a1cdfser61ca7fa1a4\""
);
"Last-Modified" = (
"Tue, 07 Nov 2017 01:44:00 GMT"
);
Server = (
AmazonS3
);
"x-amz-id-2" = (
"LiCk24ajVvge+qcds5hgfbgdfxgnhFOhfUVLdZ/KlTWgLXdPNPU8iYnZIkeGoRvBkLbKwFFY="
);
"x-amz-request-id" = (
9CD8SDHD7B81DB
);
} }
(Fetch Start) 2017-11-07 11:02:50 +0000
(Domain Lookup Start) 2017-11-07 11:02:50 +0000
(Domain Lookup End) 2017-11-07 11:02:50 +0000
(Connect Start) 2017-11-07 11:02:50 +0000
(Secure Connection Start) 2017-11-07 11:02:50 +0000
(Secure Connection End) 2017-11-07 11:02:51 +0000
(Connect End) 2017-11-07 11:02:51 +0000
(Request Start) 2017-11-07 11:02:51 +0000
(Request End) 2017-11-07 11:02:51 +0000
(Response Start) 2017-11-07 11:02:51 +0000
(Response End) 2017-11-07 11:03:27 +0000
(Protocol Name) http/1.1
(Proxy Connection) NO
(Reused Connection) NO
(Fetch Type) Network Load
))
Descarga finalizada
但是，该文件已下载到路径：
我使用更简单的版本更改了文件的目标：
let destination = DownloadRequest.suggestedDownloadDestination(for: .documentDirectory)
但问题是一样的。
iOS 10.3完美运行。
感谢任何帮助，谢谢。
我通过从以下位置删除其他参数来解决它：
Alamofire.download("https://s3-eu-west-1.amazonaws.com/xxx/xxx/xxx.sqlite3", method: .get, parameters: parameters, encoding: JSONEncoding.default, to: destination)
至：
Alamofire.download("https://s3-eu-west-1.amazonaws.com/xxx/xxx/xxx.sqlite3", to: destination)
我不确定什么是错的，但这就是它的工作原理