87 lines
2.7 KiB
C#
87 lines
2.7 KiB
C#
using Newtonsoft.Json;
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using Newtonsoft.Json.Serialization;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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namespace YBDevice.NApi
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{
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///<summary>
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/// long类型处理
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/// </summary>
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//public class CustomContractResolver : CamelCasePropertyNamesContractResolver //默认为驼峰样式
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public class CustomContractResolver : DefaultContractResolver //保持默认值
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{
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protected override string ResolvePropertyName(string propertyName)
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{
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//所有字母小写
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return propertyName.ToLower();
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// return base.ResolvePropertyName(propertyName);
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}
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/// <summary>
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/// 对长整型做处理
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/// </summary>
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/// <param name="objectType"></param>
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/// <returns></returns>
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protected override JsonConverter ResolveContractConverter(Type objectType)
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{
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if (objectType == typeof(long))
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{
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return new JsonConverterLong();
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}
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return base.ResolveContractConverter(objectType);
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}
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}
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/// <summary>
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/// 对于LONG类型的转换
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/// </summary>
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public class JsonConverterLong : JsonConverter
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{
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/// <summary>
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/// 判断是否为Long类型
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/// </summary>
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/// <param name="objectType">类型</param>
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/// <returns>为long类型则可以进行转换</returns>
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public override bool CanConvert(Type objectType)
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{
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if (objectType == typeof(long))
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return true;
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return false;
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}
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public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
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{
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if (value == null)
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return;
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string lvalue = value.ToString();
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writer.WriteValue(lvalue);
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}
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public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
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{
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//bool isNullable = IsNullableType(objectType);
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//Type t = isNullable ? Nullable.GetUnderlyingType(objectType) : objectType;
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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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//if (reader.TokenType == JsonToken.Integer)
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//{
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// return reader.Value.ToString();
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//}
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//return null;
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if ((reader.ValueType == null || reader.ValueType == typeof(long?)) && reader.Value == null)
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{
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return null;
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}
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else
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{
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long.TryParse(reader.Value != null ? reader.Value.ToString() : "", out long value);
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return value;
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}
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}
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}
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}
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