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swiftnsurlrequest

Why my return is nil but if i press the url in chrome/safari, i can get data?

@IBAction func mainButtonnBeTapped(sender: AnyObject) {
        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            
            let myString = NSString(data: data, encoding: NSUTF8StringEncoding)
            println("this is my string: \(myString)")
        })
        task.resume()
    }

I am using above url to try to get some data, but the return is nil, but i enter the url in chrome/safari, i can get some data. I really don't why, can anyone help to explain?

Solution

  • The text you try to get is probably not UTF-8, try with another encoding, like this for example:

    let myString = NSString(data: data, encoding: NSASCIIStringEncoding)

    Update: read Martin R's answer for how to find the right encoding.