Swift（或objective-c）相当于curl请求

我想将下面的卷曲请求模板化为swift（或objective-c）

以下是我写的

func authentication(){
    var loginID = "mylogin_id"
    var apiKey = "myapi_key"
    var post:NSString = "login_id=\(loginID)&api_key=\(apiKey)"

    NSLog("PostData: %@",post);

    var url:NSURL = NSURL(string:"https://~~~~~/v2/authenticate/api")!

    var postData:NSData = post.dataUsingEncoding(NSASCIIStringEncoding)!

    var postLength:NSString = String( postData.length )

    var request:NSMutableURLRequest = NSMutableURLRequest(URL: url)
    request.HTTPMethod = "POST"
    request.HTTPBody = postData
    request.setValue(postLength, forHTTPHeaderField: "Content-Length")
    request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
    request.setValue("application/json", forHTTPHeaderField: "Accept")


    var reponseError: NSError?
    var response: NSURLResponse?

    var urlData: NSData? = NSURLConnection.sendSynchronousRequest(request, returningResponse:&response, error:&reponseError)
}

如果登录成功，将返回一个令牌，但是，我无法获取它

{"auth_token": "ea6d13c7bc50feb46cf978d137bc01a2"}

我提到过。 谢谢你的好意

////// ※更新1月4日下午2:30

我将“var request~~”中的代码重写如下，然后得到“Error”，因此这段代码似乎将urlData返回为nil

若你们能找到解决问题的方法，请帮助我

var request:NSMutableURLRequest = NSMutableURLRequest(URL: url)
    request.HTTPMethod = "POST"
    request.HTTPBody = postData
    //request.setValue(postLength, forHTTPHeaderField: "Content-Length")
    request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
    //request.setValue("application/json", forHTTPHeaderField: "Accept")

    var reponseError: NSError?
    var response: NSURLResponse?
    var urlData: NSData? = NSURLConnection.sendSynchronousRequest(request, returningResponse:&response, error:&reponseError)
    if (urlData != nil){
        var responseData:NSString  = NSString(data:urlData!, encoding:NSUTF8StringEncoding)!
        let res = response as NSHTTPURLResponse!;

        NSLog("Response code: %ld", res.statusCode);

        if (res.statusCode >= 200 && res.statusCode < 300){
            var responseData:NSString  = NSString(data:urlData!, encoding:NSUTF8StringEncoding)!

            NSLog("Response ==> %@", responseData);
        }
    }else{
        NSLog("Error");
    }

var请求：NSMutableURLRequest=NSMutableURLRequest（URL:URL）
request.HTTPMethod=“POST”
request.HTTPBody=postData
//request.setValue（postLength，forHTTPHeaderField:“内容长度”）
request.setValue（“application/x-www-form-urlencoded”，forHTTPHeaderField:“内容类型”）
//request.setValue（“application/json”，forHTTPHeaderField:“Accept”）
var REPORNSERROR:NSError？
var响应：nsurresponse？
变量urlData:NSData？=NSURLConnection.sendSynchronousRequest（请求、返回响应：&response、错误：&ResponseError）
if（urlData！=nil）{
var responseData:NSString=NSString（数据：urlData！，编码：NSUTF8StringEncoding）！
让res=响应为NSHTTPURLResponse！；
NSLog（“响应代码：%ld”，res.statusCode）；
如果（res.statusCode>=200&&res.statusCode<300）{
var responseData:NSString=NSString（数据：urlData！，编码：NSUTF8StringEncoding）！
NSLog（“响应==>%@”，响应数据）；
}
}否则{
NSLog（“错误”）；
}

我通过代表NSURLConnection使用NSURLSession获得了身份验证令牌，但是我仍然不确定为什么可以使用NSURLSession而不能使用NSURLConnection。 如果你有什么想法，请告诉我。谢谢你的好意

func authentication2(){
    let request = NSMutableURLRequest(URL: NSURL(string: "https://~~~/v2/authenticate/api")!)
    request.HTTPMethod = "POST"

    var loginID = "mylogin_id"
    var apiKey = "myapi_key"
    var postString:NSString = "login_id=\(loginID)&api_key=\(apiKey)"

    request.HTTPBody = postString.dataUsingEncoding(NSUTF8StringEncoding)
    let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
        data, response, error in

        if error != nil {
            println("error=\(error)")
            return
        }

        println("response = \(response)")

        let responseString = NSString(data: data, encoding: NSUTF8StringEncoding)
        println("responseString = \(responseString)")
    }
    task.resume()
}

---

您是否已尝试删除请求中的“接受”和“内容长度”标题？尚未尝试。我现在将尝试。您的

responseError

变量的内容是什么<代码>响应变量？>Mundi响应为零，responseError为错误。

func authentication2(){
    let request = NSMutableURLRequest(URL: NSURL(string: "https://~~~/v2/authenticate/api")!)
    request.HTTPMethod = "POST"

    var loginID = "mylogin_id"
    var apiKey = "myapi_key"
    var postString:NSString = "login_id=\(loginID)&api_key=\(apiKey)"

    request.HTTPBody = postString.dataUsingEncoding(NSUTF8StringEncoding)
    let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
        data, response, error in

        if error != nil {
            println("error=\(error)")
            return
        }

        println("response = \(response)")

        let responseString = NSString(data: data, encoding: NSUTF8StringEncoding)
        println("responseString = \(responseString)")
    }
    task.resume()
}