Asp.net Objective-C将JSON发布到WebApi控制器

我有以下javascript函数，用于将数据发回ASP.NET Web Api控制器：

var d = {
    NorthEastPoint: {
        Latitude: boundingBox.ne.lat,
        Londitude: boundingBox.ne.lng
    },
    SouthWestPoint: {
        Latitude: boundingBox.sw.lat,
        Londitude: boundingBox.sw.lng
    },
    CurrentLocation: {
        Latitude: 0,
        Londitude: 0
    },
    IncludeFullImage: false
};
console.log(JSON.stringify(d));

var endPoint = 'http://127.0.0.1/api/Search/';

$.ajax({
    url: endPoint,
    type: 'POST',
    data: d,
    dataType: 'json',
    crossDomain: true,
    success: function (data) {

    },
    statusCode: {
        404: function (content) {
            return 'cannot find resource';
        },
        505: function (content) {
            return 'internal server error';
        }
    },
    error: function (req, status, errorObj) {
        // handle status === "timeout"
        // handle other errors

    }
});

这个帖子很好用。我试图使用NSURLConnection在Objective-C中复制ajax文章

下面是我创建json的Objective-C代码：

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

NSDictionary *NorthEastPoint = [[NSDictionary alloc] initWithObjectsAndKeys:[[NSNumber alloc] initWithFloat:_pointOneLat],@"Latitude",
                                [[NSNumber alloc] initWithFloat:_pointOneLon],@"Londitude",nil];

NSDictionary *SouthWestPoint = [[NSDictionary alloc] initWithObjectsAndKeys:[[NSNumber alloc] initWithFloat:_pointTwoLat],@"Latitude",
                                [[NSNumber alloc] initWithFloat:_pointTwoLon],@"Londitude",nil];
NSDictionary *CurrentLocation = [[NSDictionary alloc] initWithObjectsAndKeys:[[NSNumber alloc] initWithFloat:_currentLat],@"Latitude",
                                [[NSNumber alloc] initWithFloat:_currentLon],@"Londitude",nil];

[dict setObject:NorthEastPoint forKey:@"NorthEastPoint"];
[dict setObject:SouthWestPoint forKey:@"SouthWestPoint"];
[dict setObject:CurrentLocation forKey:@"CurrentLocation"];
[dict setObject:@"false" forKey:@"IncludeFullImage"];


NSError *writeError = nil;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&writeError];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSLog(@"JSON Output: %@", jsonString);

上面的输出是：

JSON Output: {
  "NorthEastPoint" : {
    "Londitude" : 1.388894,
    "Latitude" : 57.49198
  },
  "CurrentLocation" : {
    "Londitude" : -6.12792,
    "Latitude" : 53.24554
  },
  "SouthWestPoint" : {
    "Londitude" : -5.642355,
    "Latitude" : 52.30821
  },
  "IncludeFullImage" : "false"
}

然后，我尝试使用以下代码将json发布到我的WebApi控制器：

NSURL * url = [NSURL URLWithString:@"http://172.20.10.5/apisite/api/Search"];

    NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:url];

    [request setHTTPMethod:@"POST"];
    [request setHTTPBody:jsonData];
    theConnection=[[NSURLConnection alloc] initWithRequest:request delegate:self];
    if (theConnection) {
        [self.delegate searchDidStart];
        // Create the NSMutableData to hold the received data.
        // receivedData is an instance variable declared elsewhere.
        self.receivedData = [[NSMutableData alloc]init];
    } else {

    }

在控制器上发布模型后，我可以看到我的发布成功，因为达到了断点，但是没有填充模型数据。 我的控制器方法如下所示：

public async Task<IEnumerable<PlaceDTO>> Post(BoxSearchParam model) {
    // Do stuff
}

公共异步任务Post（BoxSearchParam模型）{
//做事
}

BoxSearchParam的定义如下：

public class BoxSearchParam
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="BoxSearchParam"/> class.
        /// </summary>
        public BoxSearchParam()
        {
            this.NorthEastPoint = new MapPoint();
            SouthWestPoint = new MapPoint();
            CurrentLocation = new MapPoint();
            MaximumSearchRadius = int.Parse(ConfigurationManager.AppSettings["MaxDistanceBetweenPoints"]);
        }

        /// <summary>
        /// Gets or sets the north west point.
        /// </summary>
        public MapPoint NorthEastPoint { get; set; }

        /// <summary>
        /// Gets or sets the south east point.
        /// </summary>
        public MapPoint SouthWestPoint { get; set; }

        /// <summary>
        /// Gets or sets the current location.
        /// </summary>
        public MapPoint CurrentLocation { get; set; }

        /// <summary>
        /// Gets or sets the maximum search radius.
        /// </summary>
        public int MaximumSearchRadius { get; internal set; }

        /// <summary>
        /// Gets or sets a value indicating whether include full image.
        /// </summary>
        public bool IncludeFullImage { get; set; }
    }

public class MapPoint
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="MapPoint"/> class.
        /// </summary>
        public MapPoint()
        {
            Londitude = 0;
            Latitude = 0;
        }

        /// <summary>
        /// Gets or sets the londitude.
        /// </summary>
        public decimal Londitude { get; set; }

        /// <summary>
        /// Gets or sets the latitude.
        /// </summary>
        public decimal Latitude { get; set; }
    }

公共类BoxSearchParam
{
/// 
///初始化类的新实例。
/// 
public BoxSearchParam（）
{
this.NorthEastPoint=新映射点（）；
西南点=新地图点（）；
CurrentLocation=新映射点（）；
MaximumSearchRadius=int.Parse（ConfigurationManager.AppSettings[“MaxDistanceBetweenPoints”]）；
}
/// 
///获取或设置西北点。
/// 
公共地图点东北点{get；set；}
/// 
///获取或设置东南点。
/// 
公共地图点西南点{get；set；}
/// 
///获取或设置当前位置。
/// 
公共映射点当前位置{get；set；}
/// 
///获取或设置最大搜索半径。
/// 
公共int最大搜索半径{get；内部集；}
/// 
///获取或设置一个值，该值指示是否包含完整图像。
/// 
公共bool IncludeFullImage{get；set；}
}

MapPoint定义为：

public class BoxSearchParam
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="BoxSearchParam"/> class.
        /// </summary>
        public BoxSearchParam()
        {
            this.NorthEastPoint = new MapPoint();
            SouthWestPoint = new MapPoint();
            CurrentLocation = new MapPoint();
            MaximumSearchRadius = int.Parse(ConfigurationManager.AppSettings["MaxDistanceBetweenPoints"]);
        }

        /// <summary>
        /// Gets or sets the north west point.
        /// </summary>
        public MapPoint NorthEastPoint { get; set; }

        /// <summary>
        /// Gets or sets the south east point.
        /// </summary>
        public MapPoint SouthWestPoint { get; set; }

        /// <summary>
        /// Gets or sets the current location.
        /// </summary>
        public MapPoint CurrentLocation { get; set; }

        /// <summary>
        /// Gets or sets the maximum search radius.
        /// </summary>
        public int MaximumSearchRadius { get; internal set; }

        /// <summary>
        /// Gets or sets a value indicating whether include full image.
        /// </summary>
        public bool IncludeFullImage { get; set; }
    }

public class MapPoint
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="MapPoint"/> class.
        /// </summary>
        public MapPoint()
        {
            Londitude = 0;
            Latitude = 0;
        }

        /// <summary>
        /// Gets or sets the londitude.
        /// </summary>
        public decimal Londitude { get; set; }

        /// <summary>
        /// Gets or sets the latitude.
        /// </summary>
        public decimal Latitude { get; set; }
    }

公共类映射点
{
/// 
///初始化类的新实例。
/// 
公共地图点（）
{
Londitude=0；
纬度=0；
}
/// 
///获取或设置londitude。
/// 
公共十进制Londitude{get；set；}
/// 
///获取或设置纬度。
/// 
公共十进制纬度{get；set；}
}

---

我在发布数据时哪里出了问题，从我所看到的情况来看，我已经复制了javascript帖子中的功能，因此我不知道它为什么不起作用。

更改行

[dict setObject:@“false”forKey:@“IncludeFullImage”]

到
[dict[NSNumber number Withbool:NO]forKey:@“IncludeFullImage”]

然后再试一次。希望对您有所帮助。
在mac电脑上试用charles proxy，看看到底是什么通过了网络。谢谢，我将标记您的答案为正确，因为它使我走上了正确的道路。我需要的是：[dict setObject:[NSNumber numberWithBool:NO]forKey:@“IncludeFullImage”]；然而，即使这样，我仍然会经历同样的行为，最终解决的办法是将请求setValue:@“application/json”forHTTPHeaderField:@“Content Type”]添加到实际请求中。