使用application / x-www-form-urlencoded的POST请求 [英] POST request using application/x-www-form-urlencoded

问题描述

后端开发人员在POST请求中给出了这些说明：

The back end developer had given these instructions in POST requests:

1. 路由：{url} / {app_name / {controller} / {action}


2. 控制器和操作应该是小型上限。


3. API测试链接：http： * ** * ** * ** * ** * ***


4. 请求应使用POST方法。


5. 参数应通过请求内容体传递（FormUrlEncodedContent）。


6. 参数应为json格式。


7. 参数是关键敏感的。

1. Route: {url}/{app_name/{controller}/{action}
2. The controller and action should be on small caps.
3. API test link: http:****************
4. Request should be use POST Method.
5. Parameters should be pass via request content body (FormUrlEncodedContent).
6. Parameters should be on json format.
7. Parameters are key sensitive.

在协议中没有5号经验，我搜索并以我的代码结束。

Having no experience with number 5 in the protocol, I searched and ended with my code.

-(id)initWithURLString:(NSString *)URLString withHTTPMEthod:(NSString *)method withHTTPBody:(NSDictionary *)body {

    _URLString = URLString;
    HTTPMethod = method;
    HTTPBody = body;

    //set error message
    errorMessage = @"Can't connect to server at this moment. Try again later";
    errorTitle = @"Connection Error";

    return  self;
}


-(void)fireConnectionRequest {

    NSOperationQueue *mainQueue = [[NSOperationQueue alloc] init];
    [mainQueue setMaxConcurrentOperationCount:5];

    NSError *error = Nil;

    NSURL *url = [NSURL URLWithString:_URLString];
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];

    NSData *sendData = [NSJSONSerialization dataWithJSONObject:HTTPBody options:NSJSONWritingPrettyPrinted error:&error];
    [request setHTTPMethod:@"POST"];

    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    [request setValue:@"application/json" forHTTPHeaderField:@"Accept"];

    [request setHTTPBody: sendData];
    [NSURLConnection connectionWithRequest:request delegate:self];

    NSString *jsonString = [[NSString alloc]initWithData:sendData encoding:NSUTF8StringEncoding];


    //fire URL connectiion request
    [NSURLConnection sendAsynchronousRequest:request queue:mainQueue completionHandler:^(NSURLResponse *response, NSData *responseData, NSError *error) {

        //get the return message and transform to dictionary
        NSString *data = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
        returnMessage = [NSJSONSerialization JSONObjectWithData: [data dataUsingEncoding:NSUTF8StringEncoding]
                                                        options: NSJSONReadingMutableContainers
                                                          error:&error];


        //check return message
        if (!error) {
            [delegate returnMessageForTag:self.tag];

        }
        else {
            [delegate returnErrorMessageForTag:self.tag];
        }

    }];

}

我传递一个格式化为JSON的字典。他同意我能够传递正确的数据。我能够连接到API，但是当我尝试发送数据进行注册时，它总是返回FAILED。连接没有问题，但我没有传输数据。

I pass a dictionary formatted to JSON. he agrees that I was able to pass the right data. And I was able to connect to the API, but it is always returning "FAILED" when I try send data for registration. There are no problems in connection, but I failed to transfer the data.

这里使用相同API的android开发人员没有问题，但是无法帮助我，因为他不熟悉iOS。

The android developer here using the same API has no problem with it, but wasn't able to help me out since he's not familiar with iOS.

我缺少什么？

推荐答案

尝试使用此代码

目标C

 NSString *post =[NSString stringWithFormat:@"AgencyId=1&UserId=1&Type=1&Date=%@&Time=%@&Coords=%@&Image=h32979`7~U@)01123737373773&SeverityLevel=2",strDateLocal,strDateTime,dict];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d",[postData length]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:[NSString stringWithFormat:@"http://google/places"]]];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:postData];
NSError *error;
NSURLResponse *response;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *str=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];

Swift 2.2

var post = "AgencyId=1&UserId=1&Type=1&Date=\(strDateLocal)&Time=\(strDateTime)&Coords=\(dict)&Image=h32979`7~U@)01123737373773&SeverityLevel=2"
var postData = post.dataUsingEncoding(NSASCIIStringEncoding, allowLossyConversion: true)!
var postLength = "\(postData.length)"
var request = NSMutableURLRequest()
request.URL = NSURL(string: "http://google/places")!
request.HTTPMethod = "POST"
request.setValue(postLength, forHTTPHeaderField: "Content-Length")
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.HTTPBody = postData
NSError * error
NSURLResponse * response
var urlData = try! NSURLConnection.sendSynchronousRequest(request, returningResponse: response)!
var str = String(data: urlData, encoding: NSUTF8StringEncoding)

Swift 3.0

let jsonData = try? JSONSerialization.data(withJSONObject: kParameters)
    let url: URL = URL(string: "Add Your API URL HERE")!
    print(url)
    var request: URLRequest = URLRequest(url: url)
    request.httpMethod = "POST"
    request.httpBody = jsonData
    request.setValue(Constant.UserDefaults.object(forKey: "Authorization") as! String?, forHTTPHeaderField: "Authorization")
    request.setValue(Constant.kAppContentType, forHTTPHeaderField: "Content-Type")
    request.setValue(Constant.UserAgentFormat(), forHTTPHeaderField: "User-Agent")

    let task = URLSession.shared.dataTask(with: request, completionHandler: { data, response, error in

        if data != nil {

            do {
                let json = try JSONSerialization.jsonObject(with: data!, options: .allowFragments) as! NSDictionary
                print(json)
            } catch let error as NSError {
                print(error)
            }
        } else {
            let emptyDict = NSDictionary()
        }
    })
    task.resume()

我希望这段代码对你有用。

I hope this code useful for you.

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