Objective C - 带有标头和参数的 HTTP POST REQUEST 句柄

Question

我已经使用 POST 方法在我的应用程序中调用带有标头值和参数的 API。 但在我的后端无法让我的标头值进行身份验证。甚至我的回复也有无效用户。我附上了我的sn-p。你能帮我解决这个问题吗？

NSString *post = [NSString stringWithFormat:@"test=Message"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];

[request setURL:[NSURL URLWithString:@"http://myURL.com/FakeURL"]];
[request setHTTPMethod:@"POST"];

NSString *authStr=[NSString stringWithFormat:@"userName:xxx"];
NSData *authData=[authStr dataUsingEncoding:NSUTF8StringEncoding];
NSString *headerValue=[NSString stringWithFormat:@"Basic %@",[authData base64EncodedStringWithOptions:0]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
[request setValue:headerValue forHTTPHeaderField:@"Authorization"];


NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
[[session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
NSString *requestReply = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
NSLog(@"requestReply: %@", requestReply);

我的回复是：

2017-04-10 16:43:35.635 Testing[5155:172935] ST :200
2017-04-10 16:43:35.636 API_Testing_AeroVoyce[5155:172935] Error :(null)
2017-04-10 16:43:35.638 API_Testing_AeroVoyce[5155:172935] requestReply :invalid user

Answer 1

为授权、URL 和内容长度创建单个 URL 请求：

1. 您在请求标头字段中缺少内容长度。

    - (void)postRequest
   
    {
      NSMutableURLRequest *request = [[NSMutableURLRequest alloc]init];
       NSString *post = [NSString stringWithFormat:@"test=Message"];
       NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
       NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
   
       [request setURL:[NSURL URLWithString:@"http://myURL.com/FakeURL"]];
       [request setHTTPMethod:@"POST"];
   
       NSString *authStr=[NSString stringWithFormat:@"userName:xxx"];
       NSData *authData=[authStr dataUsingEncoding:NSUTF8StringEncoding];
       NSString *headerValue=[NSString stringWithFormat:@"Basic %@",[authData base64EncodedStringWithOptions:0]];
   
       [request setValue:headerValue forHTTPHeaderField:@"Authorization"];
   
       [request setValue:postLength forHTTPHeaderField:@"Content-Length"];
   
   
       NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
       NSURLSessionDataTask *task = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
           NSString *requestReply = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
           NSLog(@"requestReply: %@", requestReply);
       }];
       [task resume];
   }
   

2. 确保您已添加 NSURLSessionDataTask 以恢复。

3. 还要检查您是否已在 info.Plist 中启用 App Transport Security。

这将有助于解决您的问题。

编辑：

尝试这样做：

 if(data!= nil)
        {
            id JSON = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil];
            NSLog(@"Response === %@",JSON);
        }

代替：

NSString *requestReply = [[NSString alloc] initWithData:数据编码:NSASCIIStringEncoding];