Question

我已经编写了一个C＃程序来生成＆＃34; Json＆＃34; Eway Bill Uploading文件

我的Json格式是： - （当我在EwayBill上传时它不起作用）

请帮帮我，怎么做

[{"Supply Type":"Outward","Sub Type":"Export","Doc Type":"Tax Invoice","Doc No":"PK/18/0015","Doc Date":"16/02/2018 00:00:00","From_OtherPartyName":"KH Exports  India Private Limited Glove Division","From_GSTIN":"33AAACR1714R1ZA","From_Address1":"142/1,Trunk Road","From_Address2":"Perumugai","From_Place":"Vellore","From_Pin Code":"632009","From_State":"Tamil Nadu","To_OtherPartyName":"K H EXPORTS INDIA PRIVATE LIMITED","To_GSTIN":"33AAACR1714R1ZA","To_Address1":"GLOVE DIVISION, GODOWN","To_Address2":"NEW NO. 24, KUMARAPPA STREET,","To_Place":"Chennai","To_Pin Code":"600003","To_State":"Tamil Nadu","Product":"FINISHED LEATHER GLOVES FOR LADIES","Description":"","HSN":"42032920","Unit":"PAIRS","Qty":"25","Assessable Value":"678","Tax Rate (S+C+I+Cess)":"9+9+0+0","CGST Amount":"6102","SGST Amount":"6102","IGST Amount":"0","CESS Amount":"0","Trans Mode":"Road","Distance (Km)":"115","Trans Name":"","Trans ID":"","Trans DocNo":"","Trans Date":"","Vehicle No":"TN23CB8274","Errors List":""}]

以下json工作正常（我从eway bill网站获得这个json）

{
"version":"1.0.0123",
    "billLists":[{
           "userGstin":"29BQSPA3829E124",
           "supplyType":"O",
           "subSupplyType":1,
           "docType":"INV",
           "docNo":"1234",
           "docDate":"04/03/2017",
           "fromGstin":"29BQSPA3829E124",
           "fromTrdName":"HUKKERI PVT LTD",
           "fromAddr1":"OLD AIRPORT ROAD",
           "fromAddr2":"OLD AIRPORT ROAD",
           "fromPlace":"BANGALORE",
           "fromPincode":560090,
           "fromStateCode":29,
           "toGstin":"29AAACG0569P1Z3",
           "toTrdName":"AMBUJA PVT LTD",
           "toAddr1":"MG ROAD",
           "toAddr2":"MG ROAD",
           "toPlace":"BANGALORE",
           "toPincode":560090,
           "toStateCode":29,
           "totalValue":678,
           "cgstValue":6102,
           "sgstValue":6102,
           "igstValue":0,
           "cessValue":0,
           "transMode":1,
           "transDistance":567,
           "transporterName":"",
           "transporterId":"",
           "transDocNo":"",
           "transDocDate":"",
           "vehicleNo":"KA12KA1234",
                     "itemList":[{
                            "itemNo":1,
                            "productName":"STEEL",
                            "productDesc":"STEEL",
                            "hsnCode":26180000,
                            "quantity":0,
                            "qtyUnit":"KGS",
                            "taxableAmount":678,
                            "sgstRate":9,
                            "cgstRate":9,
                            "igstRate":0,
                            "cessRate":0
                          }

                          ]
           }

      ]
}

我在下面试过但是没有解决......请检查此代码......

public bool WriteJason(DataTable dt, string path)
    {
        try
        {

            System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
            List&lt;Dictionary&lt;string, string>> rows = new List&lt;Dictionary&lt;string, string>>();
            Dictionary&lt;string, string> row = null;

            foreach (DataRow dr in dt.Rows)
            {
                row = new Dictionary&lt;string, string>();
                foreach (DataColumn col in dt.Columns)
                {
                    row.Add(col.ColumnName.Trim().ToString(), Convert.ToString(dr[col]));
                }
                rows.Add(row);
            }
            string jsonstring = serializer.Serialize(rows);

            using (var file = new StreamWriter(path, false))
            {
                file.Write(jsonstring);
                file.Close();
                file.Dispose();
            }
            return true;
        }
        catch { return false; }
    }

Answer 1

正如@mcy在评论中提到的那样，您可以更轻松地使用Json.NET。

为了扩展这个想法，我个人会采取这种方法：

定义与您的Json结构匹配的模型：

private class JsonModel
{
    public string Version { get; set; }
    public IList<JsonBillModel> BillLists { get; set; } = new List<JsonBillModel>();
}

private class JsonBillModel
{
    public string UserGstin { get; set; }
    public string SupplyType { get; set; }
    public int SubSupplyType { get; set; }
    public string DocType { get; set; }
    //...
}

创建模型的实例

var model = new JsonModel
{
    Version = "1.0.0123",
    BillLists =
    {
        new JsonBillModel
        {
            UserGstin = "29BQSPA3829E124",
            SupplyType = "O",
            SubSupplyType = 1,
            DocType = "INV"
            //...
        }
    }
};

使用Json.NET将模型序列化为Json：

var serializerSettings = new JsonSerializerSettings();
serializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
var json = JsonConvert.SerializeObject(model, serializerSettings);
File.WriteAllText(path, json);

我们使用JsonSerializerSettings合约解析程序创建CamelCasePropertyNamesContractResolver实例的原因是我们的模型会在Json中生成PascalCase个键（因为我们的模型是用一个PascalCase格式。如果这听起来很混乱，请尝试省略ContractResolver-line并亲自查看结果。

使用您最喜欢的测试库编写测试以确保您的Json输出与您想要的输出匹配。

旁注：您还可以使用Json.NET将json转换为模型的实例。

var model = JsonConvert.DeserializeObject<JsonModel>(json);

如何创建json文件

1 个答案: