POST请求没有在Swift中发送
问题描述:
我只想问一下。为什么我的POST请求不被发送?代码看起来很完美,Xcode显示没有错误。我正在使用Swift 3.你能帮我吗?谢谢!我的代码如下,我的帖子URL是here。再次感谢!POST请求没有在Swift中发送
@IBAction func onClick(_ sender: Any) {
let username = Username.text
let password = Password.text
let request = NSMutableURLRequest(url: url)
request.httpMethod = "POST"
let params = ["username": username, "password": password] as Dictionary<String, AnyObject>
do {
try request.httpBody = JSONSerialization.data(withJSONObject: params, options: .prettyPrinted)
} catch {
print("Error")
}
request.addValue("application/JSON", forHTTPHeaderField: "Content-Type")
URLSession.shared.getAllTasks { (openTasks: [URLSessionTask]) in
NSLog("open tasks: \(openTasks)")
}
}
答
你必须使用URLSession.shared.dataTask(with:completionHandler:)
。另外,请勿使用NSMutableRequest
,但请使用本机Swift版本URLRequest
。
@IBAction func onClick(_ sender: Any) {
let username = Username.text
let password = Password.text
var request = URLRequest(url: url)
request.httpMethod = "POST"
let params = ["username": username, "password": password] as Dictionary<String, AnyObject>
do {
try request.httpBody = JSONSerialization.data(withJSONObject: params, options: .prettyPrinted)
} catch {
print("Error")
}
request.addValue("application/JSON", forHTTPHeaderField: "Content-Type")
URLSession.shared.dataTask(with: request, completionHandler: { data,response, error in
if let existingError = error {
//handle error
}
//handle response and/or data
}).resume()
}
答
您需要使用:
let task = session.dataTaskWithRequest(urlRequest, completionHandler: { (data, response, error) in
// do stuff with response, data & error here
print(error)
print(response)
})
task.resume()