【发布时间】：2016-02-04 04:25:51
【问题描述】：
自从更新到 9.1 后 URL 请求的 Swift 语法发生变化以来，我一直在向我的 API 发出请求时出错。例如，这个 POST 请求只是尝试登录。我可以直接在 API (Strongloop Loopback) Explorer 界面中登录，但不能从 Swift 登录。我收到此错误：
The operation couldn’t be completed. No such file or directory
我的代码如下所示：
func performLoginRequestWithURL(url: NSURL, email: String, password: String) {
let bodyData = "email=\(email)&password=\(password)"
let request: NSMutableURLRequest = NSMutableURLRequest(URL: url)
let session = NSURLSession.sharedSession()
request.HTTPMethod = "POST"
request.HTTPBody = bodyData.dataUsingEncoding(NSUTF8StringEncoding)
let task = session.dataTaskWithRequest(request, completionHandler: {
data, response, error -> Void in
if let error = error {
let errString = error.localizedDescription
NSNotificationCenter.defaultCenter().postNotificationName(self.lh, object: nil, userInfo: ["Result": errString])
print(error.localizedDescription)
} else if data != nil {
let json = NSString(data: data!, encoding: NSUTF8StringEncoding) as! String
if let dictionary = JSON().parseJSON(json) as [String: AnyObject]? {
let accesstoken = dictionary["id"] as! String
let id = dictionary["userId"] as! Int
// MARK: - Store UID & AccessToken
NSUserDefaults.standardUserDefaults().setBool(true, forKey: "userLoggedIn")
NSUserDefaults.standardUserDefaults().setInteger(id, forKey: "userId")
NSUserDefaults.standardUserDefaults().setObject(accesstoken, forKey: "accessToken")
NSUserDefaults.standardUserDefaults().synchronize()
NSNotificationCenter.defaultCenter().postNotificationName(self.lh, object: nil, userInfo: ["Result": "Success"])
}
}
})
task.resume()
}
这是它过去工作时的样子，但他们贬低了 sendAsynchronousRequest 方法：
func performLoginRequestWithURL(url: NSURL, email: String, password: String) {
let bodyData = "email=\(email)&password=\(password)"
var request: NSMutableURLRequest = NSMutableURLRequest(URL: url)
request.HTTPMethod = "POST"
request.HTTPBody = bodyData.dataUsingEncoding(NSUTF8StringEncoding)
NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()){
response, data, error in
if let error = error {
let errString = error.localizedDescription
NSNotificationCenter.defaultCenter().postNotificationName(self.lh, object: nil, userInfo: ["Result": errString])
} else if data != nil {
let json = NSString(data: data, encoding: NSUTF8StringEncoding) as! String
if let dictionary = JSON().parseJSON(json) as [String: AnyObject]? {
let accesstoken = dictionary["id"] as! String
let id = dictionary["userId"] as! Int
var results = [String: AnyObject]()
results = ["at": accesstoken, "id": id]
// MARK: - Store UID & AccessToken
NSUserDefaults.standardUserDefaults().setBool(true, forKey: "userLoggedIn")
NSUserDefaults.standardUserDefaults().setInteger(id, forKey: "userId")
NSUserDefaults.standardUserDefaults().setObject(accesstoken, forKey: "accessToken")
NSUserDefaults.standardUserDefaults().synchronize()
NSNotificationCenter.defaultCenter().postNotificationName(self.lh, object: nil, userInfo: ["Result": "Success"])
}
}
}
}
【问题讨论】：
标签： swift api http-post strongloop loopback