using Newtonsoft.Json;
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using Newtonsoft.Json.Linq;
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using System;
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namespace CommonUtil.Json
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{
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/// <summary>
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/// Long强后转
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/// </summary>
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public class LongConvert : JsonConverter
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{
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/// <summary>
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///
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/// </summary>
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public LongConvert()
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{
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}
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/// <summary>
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/// 转成string类型
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/// </summary>
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/// <param name="writer"></param>
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/// <param name="value"></param>
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/// <param name="serializer"></param>
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public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
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{
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serializer.Serialize(writer, value.ToString());
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}
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/// <summary>
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/// 转换
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/// </summary>
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/// <param name="reader"></param>
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/// <param name="objectType"></param>
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/// <param name="existingValue"></param>
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/// <param name="serializer"></param>
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/// <returns></returns>
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public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
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{
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if (reader.TokenType == JsonToken.Null)
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{
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return null;
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}
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JToken jt = JToken.ReadFrom(reader);
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return jt.Value<long>();
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}
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/// <summary>
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/// 判断类型是否long
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/// </summary>
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/// <param name="objectType"></param>
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/// <returns></returns>
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public override bool CanConvert(Type objectType)
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{
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if (typeof(long).Equals(objectType) || typeof(long?).Equals(objectType))
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{
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return true;
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}
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return false;
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}
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}
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}
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