无法通过 Json 将复杂对象发布到 Web API - HTTP 错误 500

Question

我正在使用 REST 客户端，我已使用该客户端在数据库中发布其他复杂对象。

我无法发布太多代码，因为它与工作相关，但这是我尝试从我的其余客户端发送到 Web API 的内容：

{"BinID":"PBN0012","BinType":"Wash","IsDeleted":false,"ModifiedDateTime":"2014-07-11T17:51:49.670028+00:00","ModifiedByUID":"00000000-0000-0000-0000-000000000000","BatchBins":[],"BinsInUses":[]}

这就是JsonConvert序列化后的对象。

我正在使用 HttpWebResponse（并在 Xamarin“路径中存在非法字符”上收到 HTTP 500 内部服务器错误 - 和 System.ArgumentException。

即使当我尝试直接通过 SOAP UI 发布时，我也会收到以下消息：

{
   "$id": "1",
   "Message": "An error has occurred."
}

这就是我在浏览器中输入“(IP 地址...)/Api/Bins/GetBins 时得到的结果：

[{"$id":"1","BatchBins":[],"BinsInUses":[{"$id":"2","Bin":{"$ref":"1"},"BinID":"PBN0001","EntrySequence":1}],"BinID":"PBN0001","BinType":"Wash","IsDeleted":false,"ModifiedDateTime":"2014-06-02T00:00:00","ModifiedByUID":"b6c1b64f-874b-4180-949a-97c77cc4194c"},{"$id":"3","BatchBins":[],"BinsInUses":[{"$id":"4","Bin":{"$ref":"3"},"BinID":"PBN0002","EntrySequence":2}],"BinID":"PBN0002","BinType":"Wash","IsDeleted":false,"ModifiedDateTime":"2014-06-02T00:00:00","ModifiedByUID":"b6c1b64f-874b-4180-949a-97c77cc4194c"},{"$id":"5","BatchBins":[],"BinsInUses":[{"$id":"6","Bin":{"$ref":"5"},"BinID":"PBN0003","EntrySequence":3}],"BinID":"PBN0003","BinType":"Wash","IsDeleted":false,"ModifiedDateTime":"2014-06-02T00:00:00","ModifiedByUID":"b6c1b64f-874b-4180-949a-97c77cc4194c"},{"$id":"7","BatchBins":[],"BinsInUses":[{"$id":"8","Bin":{"$ref":"7"},"BinID":"PBN0004","EntrySequence":4}],"BinID":"PBN0004","BinType":"Wash","IsDeleted":false,"ModifiedDateTime":"2014-06-02T00:00:00","ModifiedByUID":"b6c1b64f-874b-4180-949a-97c77cc4194c"},{"$id":"9","BatchBins":[],"BinsInUses":[],"BinID":"PBN0005","BinType":"Wash","IsDeleted":false,"ModifiedDateTime":"2014-06-02T00:00:00","ModifiedByUID":"b6c1b64f-874b-4180-949a-97c77cc4194c"},{"$id":"10","BatchBins":[],"BinsInUses":[],"BinID":"PBN0006","BinType":"Dryer","IsDeleted":false,"ModifiedDateTime":"2014-06-02T00:00:00","ModifiedByUID":"b6c1b64f-874b-4180-949a-97c77cc4194c"},{"$id":"11","BatchBins":[],"BinsInUses":[],"BinID":"PBN0007","BinType":"Dryer","IsDeleted":false,"ModifiedDateTime":"2014-06-02T00:00:00","ModifiedByUID":"b6c1b64f-874b-4180-949a-97c77cc4194c"},{"$id":"12","BatchBins":[],"BinsInUses":[],"BinID":"PBN0008","BinType":"Dryer","IsDeleted":false,"ModifiedDateTime":"2014-06-02T00:00:00","ModifiedByUID":"b6c1b64f-874b-4180-949a-97c77cc4194c"},{"$id":"13","BatchBins":[],"BinsInUses":[],"BinID":"PBN0009","BinType":"Dryer","IsDeleted":false,"ModifiedDateTime":"2014-06-02T00:00:00","ModifiedByUID":"b6c1b64f-874b-4180-949a-97c77cc4194c"},{"$id":"14","BatchBins":[],"BinsInUses":[],"BinID":"PBN0010","BinType":"Dryer","IsDeleted":false,"ModifiedDateTime":"2014-06-02T00:00:00","ModifiedByUID":"b6c1b64f-874b-4180-949a-97c77cc4194c"},{"$id":"15","BatchBins":[],"BinsInUses":[],"BinID":"PBN0011","BinType":"Wash","IsDeleted":false,"ModifiedDateTime":"2014-07-03T15:34:11.67","ModifiedByUID":"9f05ab31-2521-4a7e-9258-b7092aae5058"}]

Bin 类包括：

public partial class Bin
{
    public Bin()
    {
        this.BatchBins = new HashSet<BatchBin>();
        this.BinsInUses = new HashSet<BinsInUse>();
    }

    public string BinID { get; set; }
    public string BinType { get; set; }
    public bool IsDeleted { get; set; }
    public System.DateTime ModifiedDateTime { get; set; }
    public System.Guid ModifiedByUID { get; set; }

    public virtual ICollection<BatchBin> BatchBins { get; set; }
    public virtual ICollection<BinsInUse> BinsInUses { get; set; }
}

数据库中“Bin”的表有以下列：

BinID (PK, nvarchar(100),not null)
BinType (nvarchar(5), not null)
IsDeleted (bit, not null)
ModifiedDateTime (datetime,not null)
ModifiedByUID (uniqueidentifier, not null)

考虑到我的其他对象通过得很好，我知道我为每个对象使用了正确的类型。关于如何获取要发布的 json 字符串有任何建议吗？

Answer 1

大家都知道，如果他们遇到这种错误并且找不到解决方案，您可能会遇到与我相同的问题。

我在 API 中复制并粘贴了方法以节省时间（因为许多方法/类具有相似的名称），最终我得到了两个具有相同名称的方法；我忘记更改方法名称。仅供以后参考。