快速的 Alamofire POST 请求

Question

我在我的 swift 2.0 项目中使用以下代码。尽管我添加了“import Alamofire”，但我无法添加 Alamofire.request。我必须创建 Alamofire 的对象，然后通过它访问。

这就是我创建对象的方式：

let manager = Alamofire.Manager.sharedInstance
manager.request(NSURLRequest(URL: NSURL(string: "http://httpbin.org/get")!))

let parameters = ["foo": "bar"]

manager.request(.POST, "url", parameters: parameters)
.responseJSON { request, response, json, error in
print("request: \(request)")
}

我对 Alamofire 和 swift 都是新手。谁能告诉我如何在完成处理程序中从上述代码中获得响应，以及为什么我不能使用 Alamofire.request 而不是 manager.request。

Answer 1

请查看我的 Post 方法，希望对您有所帮助

发布方式：

/**
    ** POST Method for calling API
    *  Services gateway
    *  Method  get response from server
    *  @parameter              -> requestObject: request josn object ,apiName: api endpoint
    *  @returm                 -> void
    *  @compilationHandler     -> success: status of api, response: respose from server, error: error handling
    **/
    static func getDataWithObject( requestObject: NSDictionary, apiName : NSString,
        completionHandler:
        (success : Bool, response : NSDictionary, error : ErrorType?) -> Void) {

            // Make Url
            let url = NSURL(string: apiName as String)
            let request = NSMutableURLRequest(URL: url!)
            request.HTTPMethod = "POST"
            //request.setValue("application/json", forHTTPHeaderField: "Content-Type")

            // Call the method to request and wait for the response
            // @param  ->
            // @return ->
            Alamofire.request(.POST, url!, parameters:requestObject as? [String : AnyObject], encoding: .JSON)
                .responseJSON {responseRequest, responseResponse, responseResult in

                    // Switch for Success or Error
                    switch responseResult {

                        // If the API return succesfull response
                    case .Success(let data):

                        let data_ar = data as! NSDictionary
                        print(data_ar)
                        // Get the Status if 0 then error if 1 then succes
                        // From our server side
                        if let str = data_ar.valueForKey("OK") as? Bool {

                            // Check if the status is OK and no error from
                            // our server side
                            if ( str ) {

                                print("Response from Server %@", data_ar)

                                // Cast the response and pss to handler
                                // To notify
                                completionHandler(success: true, response:data_ar
                                    , error:responseResult.error )
                            } else {
                                print("Error from Our Server %@", data_ar)
                                let str = data_ar.valueForKey("message") as! NSString
                                self.showAlertView(str, title: "Error From Server")
                            }

                        }

                    case .Failure(let data, let error):
                        print("Request failed with error: \(error)")
                        print(data)
                        print((error as! NSError).localizedDescription)
                        self.showAlertView((error as! NSError).localizedDescription, title: "Error From Server")

                    }
            }
    }

Answer 2

请求并非总是在 JSON 中，请检查您的请求：

以下是在 Swift 2 中使用 Alamofire 的示例：

GET - JSON

Alamofire.request(.GET, "http://api.androidhive.info/contacts/", parameters: nil, encoding: .JSON, headers: nil).responseJSON { (req, res, json) -> Void in
    print("\(res?.allHeaderFields)")
    print("\(json.value!)")
}

POST - 没有 JSON

Alamofire.request(.POST, "http://httpbin.org/get", parameters: ["foo": "bar"], encoding: .URL, headers: nil).response { (req, res, data, error) -> Void in
    print(res)
    print(data)

    let dataString = NSString(data: data!, encoding:NSUTF8StringEncoding)
    print(dataString)
}