如何在 Alamofire 4.0 中仅使用参数和正文在 swift 中使用 POST 方法发送请求？答案

【问题标题】：How to send request in Alamofire 4.0 only with parameters and Body using POST method in swift?如何在 Alamofire 4.0 中仅使用参数和正文在 swift 中使用 POST 方法发送请求？
【发布时间】：2018-03-28 04:18:55
【问题描述】：

我是这样使用的，但是在这种情况下，我需要调用带有参数和 Body 的 API。请帮我。提前致谢。

Alamofire.request(postUrl, method: .post, parameters: params, encoding: CustomPostEncoding(), headers: nil).validate().responseJSON{ response in

            switch response.result
            {
            case .success:
                MBProgressHUD.hide(for: self.view, animated: true)
                if let val = response.result.value
                {
                    let json = JSON(val)
                    print(json)
                }

            case .failure(let error):
                print(error)
            }
        }

【问题讨论】：

标签： ios swift alamofire

【解决方案1】：

  var url = "http://..."
    let _headers : HTTPHeaders = ["Content-Type":"application/x-www-form-urlencoded"]
    let params : Parameters = ["grant_type":"password","username":"mail","password":"pass"]

    let url =  NSURL(string:"url" as String)

    request(url, method: .post, parameters: params, encoding: URLEncoding.httpBody , headers: _headers).responseJSON(completionHandler: {
        response in response

        let jsonResponse = response.result.value as! NSDictionary

        if jsonResponse["access_token"] != nil
        {
            access_token = String(describing: jsonResponse["accesstoken"]!)

        }

    })

参考：- POST request with a simple string in body with Alamofire

【讨论】：

实际上我需要将一个字典作为正文传递，并且一次我要发送这样的参数 ["user name" : "Tester", "password" : "123456"]
--> 看看这个帖子stackoverflow.com/questions/31982513/…

【解决方案2】：

使用您的参数而不是 class_id 和时间。

func listOfClassesData(url: String,class_id: String,time: String,redClassesData : [String: Any] ,completionHandler:@escaping (Bool) -> ()){

            let Auth_header    = ["Authorization" : "Bearer "+getBearerToken()]

            let paameters:Parameters = [
                "class_id" : class_id,
                "time" :time,
            ]

            print(url,Auth_header)
            Alamofire.request(url, method: .post, parameters: paameters, encoding: JSONEncoding.default, headers: Auth_header)
                .responseJSON { response in
                    print(response)
                    switch response.result{
                    case .success:
                        let statusCode: Int = (response.response?.statusCode)!
                        switch statusCode{
                        case 200:
                            if let json = response.result.value{
                                completionHandler(true)
                            }
                            break
                        default:
                            completionHandler(false)
                            break
                        }
                        break
                    case .failure:
                        completionHandler(false)
                        break
                    }
            }
        }

【讨论】：

【解决方案3】：

let url = "your api url"
let param = ["user":"user@test.com","pass":"12345"]

Alamofire.request(url, method: .post , parameters: param)
.validate()
.responseJSON {
    response in
    switch response.result{
    case .success:
        var jsonResult = [String:AnyObject]()
        do
        {
            //Get response successfully of api
            jsonResult = try JSONSerialization.jsonObject(with: response.data!, options: []) as! [String:AnyObject]
            print(jsonResult)
        }

        catch let error as NSError {
        //get error if there is any problem in response of api.
            print("--->",error)
        }
    case .failure(let error):
        //get error if there is any problem while calling api.
        print("---->",error)
    }
}

【讨论】：