使用标头x-www-form-urlencoded的iOS Swift Http请求发布方法？

Posted 2023-02-24

【中文标题】使用标头x-www-form-urlencoded的iOS Swift Http请求发布方法？

【英文标题】：iOS Swift Http request post method using header x-www-form-urlencoded?

【发布时间】：2018-07-11 04:38:08

【问题描述】：

我必须使用作为 JSON 字符串的 application/x-www-form-urlencoded 值的标头进行 API 调用。在邮递员中给出参数值和标题时，它工作正常并返回状态码200 ok。我在这里使用后端 node js 。 Post 方法在前端不起作用。不知道是什么问题。

错误：

Sometimes i am getting request time out, 
NSUrlfailingstring, finished with status code 1001

这是我的后端代码：

  var status = 
SUCCESS : 'success',
FAILURE : 'failure'


var httpStatus = 
OK : HttpStatus.OK,
ISE : HttpStatus.INTERNAL_SERVER_ERROR,
BR : HttpStatus.BAD_REQUEST

exports.likes= function(req, res)

var Username =req.body.username;
var likecount=req.body.count;
var likedby = req.body.likedby;
var postId = req.body.postId;
var tokenId = req.body.tokenId;
var message = 
                     to: tokenId, 
                     collapse_key: '',
                     data: 
                        name:Username,
                        Message:"Content about message",
                        Redirect:"TopostId : "+postId,
                        time: ""
                      ,
                     notification: 
                                    title: "Hey Buddy , Someone have liked your post",
                                    body: likedby +"Likedyourpost",
                                    icon: "notification"
                                    
                ;


fcm.send(message)
    .then(function (response) 
        console.log("Successfully sent with response: ", response);
        res.status(httpStatus.OK).json(
        status: status.SUCCESS,
        code: httpStatus.OK,            
        error:''
    );
            return;
            )
        .catch(function (err) 
             console.log(err);

            );

;


module.exports = function(app) 
app.post('/likesnotification', notification.likes);
app.post('/commentsnotification', notification.comments);
app.post('/othernotification', notification.othernot);
app.post('/followrequset', notification.followreq);
app.post('/followresponse', notification.followres);
app.post('/publicaccountfollow', notification.publicacfollow);

;

这是我在 ios Swift 中的前端代码：

尝试 1：

   func postNotification(postItem: String, post: Post) 

print("Get token from post:::",post.token)
print(postItem)
let token = UserDefaults.standard.string(forKey: "token")




let headers: HTTPHeaders = ["Content-Type" :"application/x-www-form-urlencoded"]

   let parameters : [String:Any] = ["count":post.likeCount!, "likedby":currentName, "postId=":postItem, "token": post.token!]
Alamofire.request("http://highavenue.co:9000/likesnotification/", method: .post, parameters: parameters, encoding: JSONEncoding.default, headers: nil).responseJSON  (response:DataResponse<Any>) in

    switch(response.result) 
    case .success(_):
        if let data = response.result.value
            print(data)
        
        break

    case .failure(_):
        print(response.result.error as Any)
        break

    
   

尝试 2：

 var parameters       = [String:Any]()

parameters["count"]  = post.likeCount!
parameters["likedby"]  = currentName
parameters["postId"] = postItem
parameters["token"] = post.token!

  let Url = String(format: "http://highavenue.co:9000/likesnotification")
guard let serviceUrl = URL(string: Url) else  return 
//        let loginParams = String(format: LOGIN_PARAMETERS1, "test", "Hi World")
let parameterDictionary = parameters
var request = URLRequest(url: serviceUrl)
request.httpMethod = "POST"
request.setValue("Application/json", forHTTPHeaderField: "Content-Type")
guard let httpBody = try? JSONSerialization.data(withJSONObject: parameters, options: []) else 
    return

request.httpBody = httpBody

let session = URLSession.shared
session.dataTask(with: request)  (data, response, error) in
    if let response = response 
        print(response)
    
    if let data = data 
        do 
            let json = try JSONSerialization.jsonObject(with: data, options: 
    [])
            print(json)
        catch 
            print(error)
        
    
    .resume()

任何帮助都非常感谢。

【问题讨论】：

在后端检查，检查您是否正在获取数据？

@PratikPrajapati 我在邮递员中获取数据

我的意思是，当您从设备/模拟器请求时，您是否获取数据

@PratikPrajapati 出现错误并出现错误 - 代码：-1001 可选（错误域=NSURLErrorDomain 代码=-1001“请求超时。” UserInfo=NSUnderlyingError=0x1c0e56920 错误域=kCFErrorDomainCFNetwork 代码= -1001 "(null)" UserInfo=_kCFStreamErrorCodeKey=-2102, _kCFStreamErrorDomainKey=4, NSErrorFailingURLStringKey=highavenue.co:9000/likesnotification, NSErrorFailingURLKey=highavenue.co:9000/likesnotification, _kCFStreamErrorDomainKey=4, _kCFStreamErrorCodeKey=-2102, NSLocalizedDescription=请求超时。 ) 基于 Dipen Chudasama 的回答

@PratikPrajapati 是的，我正在获取数据

【参考方案1】：

我看到了您的代码，您应该调用为它创建的标头参数。您没有在 alamofire 请求方法中传递标头。

如下：

let headers: HTTPHeaders = ["Content-Type" :"application/x-www-form-urlencoded"]

   let parameters : [String:Any] = ["count":post.likeCount!, "likedby":currentName, "postId=":postItem, "token": post.token!]
Alamofire.request("http://highavenue.co:9000/likesnotification/", method: .post, parameters: parameters, encoding: JSONEncoding.default, headers: headers).responseJSON  (response:DataResponse<Any>) in

    switch(response.result) 
    case .success(_):
        if let data = response.result.value
            print(data)
        
        break

    case .failure(_):
        print(response.result.error as Any)
        break

    
   

【讨论】：

得到这样的错误并以错误结束 - 代码：-1001 可选（错误域 = NSURLErrorDomain 代码 = -1001“请求超时。” UserInfo = NSUnderlyingError = 0x1c0e56920 错误域 = kCFErrorDomainCFNetwork 代码 = -1001 "(null)" UserInfo=_kCFStreamErrorCodeKey=-2102, _kCFStreamErrorDomainKey=4, NSErrorFailingURLStringKey=highavenue.co:9000/likesnotification, NSErrorFailingURLKey=highavenue.co:9000/likesnotification, _kCFStreamErrorDomainKey=4, _kCFStreamErrorCodeKey=-2102, NSLocalizedDescription=请求超时。 )

你是否像我上面提到的那样在 alamo fire 方法中传递了该标头变量？

嘿，你能帮我解决这个问题吗

嘿，你能看看邮递员的截图吗....drive.google.com/file/d/1dmXvE2PoSnh9Dj0XVfGtMRu-IDKXETps/…

像这样传递标头：let headers = [ "Content-Type" : "application/x-www-form-urlencoded" ]