using Newtonsoft.Json;using Newtonsoft.Json.Serialization;using System;using System.Collections.Generic;using System.Linq;using System.Web;/// <summary>/// Summary description for LimitPropsContractResolver/// </summary>public class LimitPropsContractResolver : DefaultContractResolver{ ???string[] props = null; ???bool retain; ???/// <summary> ???/// 构造函数 ???/// </summary> ???/// <param name="props">传入的属性数组</param> ???/// <param name="retain">true:表示props是需要保留的字段 ?false：表示props是要排除的字段</param> ???public LimitPropsContractResolver(string[] props, bool retain = true) ???{ ???????//指定要序列化属性的清单 ???????this.props = props; ???????this.retain = retain; ???} ???protected override IList<JsonProperty> CreateProperties(Type type, ???MemberSerialization memberSerialization) ???{ ???????IList<JsonProperty> list = ???????base.CreateProperties(type, memberSerialization); ???????//只保留清单有列出的属性 ???????return list.Where(p => ???????{ ???????????if (retain) ???????????{ ???????????????return props.Contains(p.PropertyName); ???????????} ???????????else ???????????{ ???????????????return !props.Contains(p.PropertyName); ???????????} ???????}).ToList(); ???}}调用代码:
var jSetting = new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore };
???????????????????string[] props = { "operationRemark", "managerCode", "checkRemark" }; //排除掉，不能让前端看到的字段。为true的话就是只保留这些字段
???????????????????jSetting.ContractResolver = new LimitPropsContractResolver(props, false);
???????????????????jsonStr = JsonConvert.SerializeObject(slboe, jSetting);
Newtonsoft.Json 序列化 排除指定字段或只序列化指定字段
原文地址：https://www.cnblogs.com/Jerseyblog/p/10078278.html