Question

我正在尝试将post请求中的JSON数据发送到抛出错误的服务器。我正在以下列格式创建数据

      NSDictionary *o1 = [[NSMutableDictionary alloc] init];
        [o1 setValue:@"51" forKey:@"merchantProductId"];
        [o1 setValue:@"Big Paulie" forKey:@"name"];
        [o1 setValue:@"1" forKey:@"quantity"];
        NSDictionary *o2 = [[NSMutableDictionary alloc] init];
        [o2 setValue:@"52" forKey:@"merchantProductId"];
        [o2 setValue:@"Paulie" forKey:@"name"];
        [o2 setValue:@"10" forKey:@"quantity"];

        NSMutableArray *pizzas = [NSMutableArray arrayWithObjects:o1, o2, nil];
        NSDictionary *o3 = [[NSMutableDictionary alloc] init];
        [o3 setValue:@"3" forKey:@"merchantId"];
        [o3 setValue:pizzas forKey:@"pizzas"];
        NSMutableArray *orderArray = [NSMutableArray arrayWithObjects:o3, nil];
        NSData *jsData = [NSJSONSerialization dataWithJSONObject:orderArray options:NSJSONWritingPrettyPrinted error:nil];
 NSString *data = [NSString stringWithFormat:@"data=%@",[[NSString alloc] initWithData:jsData                                                                                 encoding:NSUTF8StringEncoding]];

       NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
    [request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
    [request setURL:[NSURL URLWithString:[NSString stringWithFormat:@"http:61.12.124.234:60/upload_image/phoneTesting.php"]]];
    [request setHTTPMethod:@"POST"];
   // [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
    [request setValue:[NSString stringWithFormat:@"%d", [requestData length]] forHTTPHeaderField:@"Content-Length"];
    [request setHTTPBody:postData];

    NSHTTPURLResponse* urlResponse = nil;
    error = [[NSError alloc] init];
    NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];
    NSString *result = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];

    NSLog(@"Response: %@", result);

在服务器中，我需要的数据应该像

一样

      {
    "pizzas" : [
      {
        "quantity" : "1",
        "merchantProductId" : "51",
        "name" : "Big Paulie"
      },
      {
        "quantity" : "10",
        "merchantProductId" : "52",
        "name" : "Paulie"
      }
    ],
    "merchantId" : "3"
  }

但我正在

(
    [data] => [
  {
    "pizzas" : [
      {
        "quantity" : "1",
        "merchantProductId" : "51",
        "name" : "Big Paulie"
      },
      {
        "quantity" : "10",
        "merchantProductId" : "52",
        "name" : "Paulie"
      }
    ],
    "merchantId" : "3"
  }
]
)

当我试图只发送jsData时，它不会发送任何带有requset的东西。

请建议我如何在帖子请求中发送唯一的json数据。

我正在使用xcode4.5

Answer 1

在我看来，你在这一行中序列化了错误的对象：

NSData *jsData = [NSJSONSerialization dataWithJSONObject:orderArray
  options:NSJSONWritingPrettyPrinted error:nil];

为什么要序列化包含字典的数组？当然你应该只是序列化字典本身。

NSData *jsData = [NSJSONSerialization dataWithJSONObject:o3
  options:NSJSONWritingPrettyPrinted error:nil];

Answer 2

我想知道你为什么要这样做：

NSString *data = [NSString stringWithFormat:@"data=%@", 
    [[NSString alloc] initWithData:jsData encoding:NSUTF8StringEncoding]];

如果是GET请求，那么您需要一个键值配对，但您只需要发送不需要密钥的POST数据。

我认为这就是为什么你会得到那种傲慢的[data] = entry。如果你做到了：

NSString *data = [NSString stringWithFormat:@"%@",
    [[NSString alloc] initWithData:jsData encoding:NSUTF8StringEncoding]];

有效吗？

在iphone中发送请求中的json数据

2 个答案: