Question

我正在尝试使用JSON.Net为.Net 3.5将JSON有效负载反序列化为数据表。我的JSON字符串格式为：

{"d":[{"__metadata":{"id":"http://testingurl.mydomain.net/Mysvc.svc/AccountingDate(datetime'2013-08-02T00%3A00%3A00')","uri":"http://testingurl.mydomain.net/Mysvc/AccountingDate(datetime'2013-08-02T00%3A00%3A00')","type":"AccountingDate"},"ACCOUNTING_DT":"\/Date(1375401600000)\/","DTTM_STAMP":"\/Date(1374278400000)\/","PRE_ACCOUNTING_DT":"\/Date(1374883200000)\/","FISCAL_YEAR":"2014","ACCOUNTING_PERIOD":"6","FYR_BEGIN_DT":"\/Date(1372464000000)\/","FYR_END_DT":"\/Date(1403827200000)\/","FMN_BEGIN_DT":"\/Date(1375488000000)\/","FMN_END_DT":"\/Date(1377820800000)\/","FISCAL_MONTH":"2","FISCAL_WEEK":"F","WK_BEGIN_DT":"\/Date(1374969600000)\/","WK_END_DT":"\/Date(1375488000000)\/","CALENDAR_ID":"WE","SETID":"EYLLP","COMPANY_DESCR":"Ernst & Young LLP","PRIOR_FYR_END_DT":"\/Date(1372377600000)\/","PRIOR_FYR_TODATE":"\/Date(1343347200000)\/","CAL_MONTH":"8","IW_CREATE_DT":"\/Date(1121385600000)\/","IW_UPDATE_DT":"\/Date(1374883200000)\/","INSTANCE_ID":"PA01","PMTD_BEGIN_DT":"\/Date(1372464000000)\/","PMTD_END_DT":"\/Date(1375401600000)\/","MTD12_BEGIN_DT":"\/Date(1343433600000)\/","MTD12_END_DT":"\/Date(1374796800000)\/","PRIOR_FYR_BEGIN_DT":"\/Date(1341014400000)\/","CALENDAR_MONTH_NAME":"August","CALENDAR_YEAR":"2013","PRY_FMN_BEGIN_DT":"\/Date(1341014400000)\/","PRY_FMN_END_DT":"\/Date(1343952000000)\/"}]}

我已经使用多个在线解析器验证了这个字符串，他们说它是有效的。我尝试使用以下方法进行反序列化。

方法1：jsonResponse等于上面的字符串

JSONNet.JsonSerializer json = new JSONNet.JsonSerializer();
json.NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore;
json.ObjectCreationHandling = Newtonsoft.Json.ObjectCreationHandling.Replace;
json.MissingMemberHandling = Newtonsoft.Json.MissingMemberHandling.Ignore;
json.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore;
StringReader sr = new StringReader(jsonResponse);
JSONNet.JsonTextReader treader = new JSONNet.JsonTextReader(sr);
DataTable dt = json.Deserialize(treader, (typeof(DataTable))) as DataTable;

方法2：jsonResponse等于上面的字符串

DataSet ds = JSONNet.JsonConvert.DeserializeObject<DataSet>(jsonResponse);

这两种方法都存在问题。

方法1返回没有列或行的数据表
方法2抛出错误：


指定的参数超出了有效值的范围。

堆栈跟踪如下：


at Newtonsoft.Json.Converters.DataTableConverter.GetColumnDataType（JsonToken tokenType）
  at Newtonsoft.Json.Converters.DataTableConverter.ReadJson（JsonReader reader，Type objectType，Object existingValue，JsonSerializer serializer）
  在Newtonsoft.Json.Converters.DataSetConverter.ReadJson（JsonReader reader，Type objectType，Object existingValue，JsonSerializer serializer）
  at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.DeserializeConvertable（JsonConverter converter，JsonReader reader，Type objectType，Object existingValue）
  at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize（JsonReader reader，Type objectType，Boolean checkAdditionalContent）
  at Newtonsoft.Json.JsonSerializer.DeserializeInternal（JsonReader reader，Type objectType）
  在Newtonsoft.Json.JsonSerializer.Deserialize（JsonReader reader，Type objectType）
  at Newtonsoft.Json.JsonConvert.DeserializeObject（String value，Type type，JsonSerializerSettings settings）
  在Newtonsoft.Json.JsonConvert.DeserializeObject [T]（字符串值，JsonSerializerSettings设置）
  at Newtonsoft.Json.JsonConvert.DeserializeObject [T]（String value）

我认为传递到跟踪顶部的JsonToken来电的GetColumnDataType是StartObject。

使用JSON.Net将JSON反序列化为DataTable

0 个答案: