JsonHelper.cs
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using Newtonsoft.Json;
using Newtonsoft.Json.Converters;
using System;
using System.Collections.Generic;
using System.Text;
namespace HHECS.Infrastructure.Json
{
/// <summary>
/// json序列化帮助类
/// </summary>
public class JsonHelper
{
private static JsonHelper _jsonHelper = new JsonHelper();
public static JsonHelper Instance { get { return _jsonHelper; } }
public string Serialize(object obj)
{
var isString = obj is string;
if (isString) return obj.ToString();
return JsonConvert.SerializeObject(obj, new IsoDateTimeConverter { DateTimeFormat = "yyyy-MM-dd HH:mm:ss" });
}
/// <summary>
/// 解析JSON字符串生成对象实体
/// </summary>
public static T JsonConvertObject<T>(string json)
{
return JsonConvert.DeserializeObject<T>(json);
}
}
#region Json 扩展类
public static class Json
{
public static object ToJson(this string Json)
{
return Json == null ? null : JsonConvert.DeserializeObject(Json);
}
public static string ToJson(this object obj)
{
if (obj is string) return obj.ToString();
var timeConverter = new IsoDateTimeConverter { DateTimeFormat = "yyyy-MM-dd HH:mm:ss" };
return JsonConvert.SerializeObject(obj, timeConverter);
}
public static string ToJson(this object obj, string datetimeformats)
{
var timeConverter = new IsoDateTimeConverter { DateTimeFormat = datetimeformats };
return JsonConvert.SerializeObject(obj, timeConverter);
}
}
#endregion
#region json Converter 针对特殊类型重写 JsonConverter
public class GuidConverter : JsonConverter
{
public override bool CanConvert(Type objectType)
{
return objectType.IsAssignableFrom(typeof(Guid));
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
Guid result = Guid.Empty;
if (reader.Value == null) return result;
Guid.TryParse(reader.Value.ToString(), out result);
return result;
}
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
serializer.Serialize(writer, value);
}
}
public class DecimalConverter : JsonConverter
{
public override bool CanConvert(Type objectType)
{
return objectType.IsAssignableFrom(typeof(decimal));
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
decimal result = 0;
if (reader.Value == null) return result;
decimal.TryParse(reader.Value.ToString(), out result);
return result;
}
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
serializer.Serialize(writer, value);
}
/// <summary>
/// 将JSON转字符串(包括数组)
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="json"></param>
/// <returns></returns>
public static T JsonConvertObject<T>(string json)
{
return JsonConvert.DeserializeObject<T>(json);
}
}
#endregion
}