Question

我是iOS开发的新手，我必须使用数组格式的POST数据

我的服务器端代码是

$auth_query = array
(
     'User'      =>     array
     ( 
      'username'  =>    'example@example.com',
      'password'  =>    'example'            
    )
);

我在Xcode中的api调用是

NSString *urlGetuser =[NSString stringWithFormat:@"http://example.com/login_api.json"];

NSURL *urlProducts=[NSURL URLWithString:urlGetuser];

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];

[request setURL:urlProducts];

[request setHTTPMethod:@"POST"];

NSMutableString *postData = [NSMutableString string];

NSMutableDictionary *user_details = [[NSMutableDictionary alloc]init];

[user_details setObject:@"example@example.com" forKey:@"username"];

[user_details setObject:@"example" forKey:@"password”];

NSMutableDictionary *dict = [[NSMutableDictionary alloc]init];

[dict setObject:user_details forKey:@"User”];

NSString *usr_details = [NSString stringWithFormat:@"%@",dict];

[postData appendFormat:@"%@",usr_details];

NSData *body = [postData dataUsingEncoding:NSJSONReadingAllowFragments];

[request setHTTPBody: body];

NSURLResponse *response;

NSError *error;

NSData *aData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];

NSMutableArray *jsonDATA=(NSMutableArray*)[NSJSONSerialization JSONObjectWithData:aData options:kNilOptions error:&error];

我无法事先发现问题

Answer 1

实际上，对于发布方法，我们有不同的方法和最简单的方法之一，下面的代码有助于加载URL请求的数据，并在请求完成或失败时在操作队列上执行处理程序块。

 if( [self setParams]){

        NSOperationQueue *queue = [[NSOperationQueue alloc]init];
        [NSURLConnection sendAsynchronousRequest:request
                                           queue:queue
                               completionHandler:^(NSURLResponse *urlResponse, NSData *data, NSError *error){
                                   NSLog(@"image post Completed");

                                   response.text = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

                                   [indicator stopAnimating];
                                   [UIApplication sharedApplication].networkActivityIndicatorVisible = FALSE;

                                   if (error) {
                                       NSLog(@"error:%@", error.localizedDescription);
                                   }

                               }];
     }

Answer 2

NSString *username = @“username";
NSString *password = @“password";
NSError *error;
NSHTTPURLResponse *response = nil;
NSDictionary *firstJsonDictionary = [NSDictionary dictionaryWithObjectsAndKeys: username,@"email",password,@"password", nil];                                     
NSDictionary *secondJsonDictionary = [NSDictionary dictionaryWithObjectsAndKeys:                                             firstJsonDictionary,@"user",                                           nil];
NSMutableArray * arr = [[NSMutableArray alloc] init];
[arr addObject:secondJsonDictionary];
NSLog(@"Post contents %@",secondJsonDictionary);
NSData *jsonData2 = [NSJSONSerialization dataWithJSONObject:[arr objectAtIndex:0] options:NSASCIIStringEncoding error:&error];
NSString *urlGetuser =[NSString stringWithFormat:@“www.example.com"];
NSURL *urlProducts=[NSURL URLWithString:urlGetuser];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
        [request setURL:urlProducts];
        [request setHTTPMethod:@"POST"];
        [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
        [request setHTTPBody:jsonData2];
        [request setHTTPShouldHandleCookies:NO];


        NSData *aData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];

        NSLog(@"Error = %@",error);
        if (aData)
        {
            NSMutableDictionary *json_DATA = (NSMutableDictionary *)[NSJSONSerialization JSONObjectWithData:aData options:NSASCIIStringEncoding error:&error];
            NSLog(@"OUT Json %@",json_DATA);
        }
     [_activityindicator stopAnimating]; 
     _overlayView.hidden = YES;

Answer 3

由于您正在进行iOS开发，因此您开始处理一些不好的事情：1）您应该避免使用同步网络连接，因为它们可以冻结您的应用程序等待响应，2）您应该避免使用NSURLConnection新项目，因为NSURLSession方法将为您提供更大的灵活性，并能够进行后台传输甚至Apple Watch连接。要解决所有这些问题，请在AFNetworking获取并使用优秀的AFNetworking代码。无需重写其他更有经验的编码人员已编写的代码。

发送POST数据包括数组iOS

3 个答案: