该 HTTP 服务器发送一个
Content-Type = application/x-javascript; charset=GBK
响应中的标头字段,因此您可以从textEncodingName
的财产NSURLResponse
。这可以是
转换为NSStringEncoding
.
这只是对中提出的解决方案的翻译https://stackoverflow.com/a/19885463/1187415到 Swift,加上一些
简单的错误检查:
let session = NSURLSession.sharedSession()
let request = NSURLRequest(URL: NSURL(string: "http://hq.sinajs.cn/list=sz000609")!)
let task = session.dataTaskWithRequest(request, completionHandler: {
(data, response, error) -> Void in
var usedEncoding = NSUTF8StringEncoding // Some fallback value
if let encodingName = response.textEncodingName {
let encoding = CFStringConvertEncodingToNSStringEncoding(CFStringConvertIANACharSetNameToEncoding(encodingName))
if encoding != UInt(kCFStringEncodingInvalidId) {
usedEncoding = encoding
}
}
if let myString = NSString(data: data, encoding: usedEncoding) {
println("this is my string: \(myString)")
} else {
println("failed to decode data")
}
})
task.resume()
Output:
this is my string: var hq_str_sz000609="绵世股份, ....
需要进行一些小的改变Swift 2:
let session = NSURLSession.sharedSession()
let request = NSURLRequest(URL: NSURL(string: "http://hq.sinajs.cn/list=sz000609")!)
let task = session.dataTaskWithRequest(request, completionHandler: {
(data, response, error) -> Void in
var usedEncoding = NSUTF8StringEncoding // Some fallback value
if let encodingName = response?.textEncodingName {
let encoding = CFStringConvertEncodingToNSStringEncoding(CFStringConvertIANACharSetNameToEncoding(encodingName))
if encoding != UInt(kCFStringEncodingInvalidId) {
usedEncoding = encoding
}
}
if let myString = String(data: data!, encoding: usedEncoding) {
print("this is my string: \(myString)")
} else {
print("failed to decode data")
}
})
task.resume()
更新为Swift 3:
let session = URLSession.shared
let request = URLRequest(url: URL(string: "http://hq.sinajs.cn/list=sz000609")!)
let task = session.dataTask(with: request, completionHandler: {
(data, response, error) -> Void in
guard let data = data else { return }
var usedEncoding = String.Encoding.utf8 // Some fallback value
if let encodingName = response?.textEncodingName {
let encoding = CFStringConvertEncodingToNSStringEncoding(CFStringConvertIANACharSetNameToEncoding(encodingName as CFString))
if encoding != UInt(kCFStringEncodingInvalidId) {
usedEncoding = String.Encoding(rawValue: encoding)
}
}
if let myString = String(data: data, encoding: usedEncoding) {
print("this is my string: \(myString)")
} else {
print("failed to decode data")
}
})
task.resume()