C# Net 通用json转Object(对象)

C# Net  通用 json 转 Object  对象

C# Net 提取 json 字符串 对象 数组

C# Net json 对象 中有字符串 转为 对象

例如输入:{"1":1,"a":"aa","aa":"{\"2\":2,\"bb\":\"{\\\"3\\\":3,\\\"cc\\\":\\\"ccc\\\"}\"}"}
例如输出:{"1":1,"a":"aa","aa":{"2":2,"bb":{"3":3,"cc":"ccc"}}}

他们2者的差异为在json对象中包含于json对象的字符串,处理为json对象中都是json对象

 

-----------------------------------------------------------------------------------

----------------如需看实现的效果,请翻到文章最后-------------------

-----------------------------------------------------------------------------------

 

引用包【Json.NET】 加入 名称空间

using System;
using Newtonsoft.Json.Linq;

 

创建一个【JsonHelper.cs】文件:

在【JsonHelper】类替换成如下代码:

 

    public class JsonHelper
    {
        #region 提取json对象
        /// <summary>
        /// 提取json字符串对象
        /// 例如输入:{"1":1,"a":"aa","aa":"{\"2\":2,\"bb\":\"{\\\"3\\\":3,\\\"cc\\\":\\\"ccc\\\"}\"}"}
        /// 例如输出:{"1":1,"a":"aa","aa":{"2":2,"bb":{"3":3,"cc":"ccc"}}}
        /// </summary>
        public static JObject ExtractObj(string jsonObject)
        {
            return ExtractObj(JObject.Parse(jsonObject));
        }
        /// <summary>
        /// 提取json对象
        /// 例如输入:{"1":1,"a":"aa","aa":"{\"2\":2,\"bb\":\"{\\\"3\\\":3,\\\"cc\\\":\\\"ccc\\\"}\"}"}
        /// 例如输出:{"1":1,"a":"aa","aa":{"2":2,"bb":{"3":3,"cc":"ccc"}}}
        /// </summary>
        public static JObject ExtractObj(JObject job)
        {
            //方法一:慢(3700个字符耗时2.2-2.4秒)
            //foreach (var item in job)
            //{
            //    try
            //    {
            //        string itemStr = item.Value.ToString();
            //        JObject itemJObj = JObject.Parse(itemStr);
            //        JObject robj = ExtractObj(itemJObj);
            //        job[item.Key] = robj;
            //    }
            //    catch
            //    {
            //        try
            //        {
            //            string itemStr = item.Value.ToString();
            //            JArray itemJArr = JArray.Parse(itemStr);
            //            JArray rArr = ExtractArr(itemJArr);
            //            job[item.Key] = rArr;
            //        }
            //        catch
            //        {
            //        }
            //    }
            //}
            //return job;

            //方法二:快(3700个字符耗时40-60毫秒)
            foreach (var item in job)
            {
                var itemV = item.Value;
                if (itemV.Type == JTokenType.String)
                {
                    var jtStr = itemV.ToString();
                    if (!IsJson(jtStr))
                        continue;

                    JToken jToken = JToken.Parse(jtStr);
                    if (jToken.Type == JTokenType.Object)
                        job[item.Key] = ExtractObj((JObject)jToken);
                    else if (jToken.Type == JTokenType.Array)
                        job[item.Key] = ExtractArr((JArray)jToken);

                }
                else if (itemV.Type == JTokenType.Object)
                {
                    job[item.Key] = ExtractObj((JObject)itemV);
                }
                else if (itemV.Type == JTokenType.Array)
                {
                    job[item.Key] = ExtractArr((JArray)itemV);
                }
            }
            return job;
        }
        #endregion

        #region 提取json数组
        /// <summary>
        /// 提取json字符串数组
        /// 例如输入:["5","6","[\"3\",\"4\",\"[\\\"1\\\",\\\"2\\\"]\"]"]
        /// 例如输出:["5","6",["3","4",["1","2"]]]
        /// </summary>
        public static JArray ExtractArr(string jsonArr)
        {
            return ExtractArr(JArray.Parse(jsonArr));
        }
        /// <summary>
        /// 提取json数组
        /// 例如输入:["5","6","[\"3\",\"4\",\"[\\\"1\\\",\\\"2\\\"]\"]"]
        /// 例如输出:["5","6",["3","4",["1","2"]]]
        /// </summary>
        /// <param name="jArr"></param>
        /// <returns></returns>
        public static JArray ExtractArr(JArray jArr)
        {
            //方法一:慢(3700个字符耗时2.2-2.4秒)
            //for (int i = 0; i < jArr.Count; i++)
            //{
            //    try
            //    {
            //        string itemStr = jArr[i].ToString();
            //        JArray itemJArr = JArray.Parse(itemStr);
            //        JArray rArr = ExtractArr(itemJArr);
            //        jArr[i] = rArr;
            //    }
            //    catch
            //    {
            //        try
            //        {
            //            string itemStr = jArr[i].ToString();
            //            JObject itemJObj = JObject.Parse(itemStr);
            //            JObject robj = ExtractObj(itemJObj);
            //            jArr[i] = robj;
            //        }
            //        catch
            //        {
            //        }
            //    }
            //}
            //return jArr;

            //方法二:快(3700个字符耗时40-60毫秒)
            for (int i = 0; i < jArr.Count; i++)
            {
                JToken jToken = jArr[i];
                if (jToken.Type == JTokenType.String)
                {
                    var jtStr = jToken.ToString();
                    if (!IsJson(jtStr))
                        continue;

                    JToken jToken2 = JToken.Parse(jtStr);
                    if (jToken2.Type == JTokenType.Array)
                    {
                        jArr[i] = ExtractArr((JArray)jToken2);
                    }
                    else if (jToken2.Type == JTokenType.Object)
                    {
                        jArr[i] = ExtractObj((JObject)jToken2);
                    }
                }
                else if (jToken.Type == JTokenType.Array)
                {
                    jArr[i] = ExtractArr((JArray)jToken);
                }
                else if (jToken.Type == JTokenType.Object)
                {
                    jArr[i] = ExtractObj((JObject)jToken);
                }
            }
            return jArr;
        }
        #endregion

        #region 提取json对象或数组
        /// <summary>
        /// 提取json字符串(支持json字符串的对象、数组、字符串)
        /// 例如输入:["5","6","[\"3\",\"4\",\"[\\\"1\\\",\\\"2\\\"]\"]","{\"1\":2,\"a\":\"ab\"}"]
        /// 例如输出:["5","6",["3","4",["1","2"]],{"1":2,"a":"ab"}]
        /// </summary>
        /// <param name="json"></param>
        /// <returns></returns>
        public static JToken ExtractAll(string json)
        {
            try
            {
                return ExtractAll(JToken.Parse(json));
            }
            catch
            {
                throw new Exception("不是有效的JToken对象");
            }
        }
        /// <summary>
        /// 提取json(支持json对象、数组、字符串)
        /// 例如输入:["5","6","[\"3\",\"4\",\"[\\\"1\\\",\\\"2\\\"]\"]","{\"1\":2,\"a\":\"ab\"}"]
        /// 例如输出:["5","6",["3","4",["1","2"]],{"1":2,"a":"ab"}]
        /// </summary>
        /// <param name="json"></param>
        /// <returns></returns>
        public static JToken ExtractAll(JToken jToken)
        {
            if (jToken.Type == JTokenType.String)
            {
                jToken = JToken.Parse(jToken.ToString());
            }

            if (jToken.Type == JTokenType.Object)
            {
                return ExtractObj((JObject)jToken);
            }
            else if (jToken.Type == JTokenType.Array)
            {
                return ExtractArr((JArray)jToken);
            }
            else
            {
                throw new Exception("暂不支持提取[" + jToken.Type.ToString() + "]类型");
            }
        }

        #endregion

        /// <summary>
        /// 是否为json(开头是'{','['的)
        /// </summary>
        public static bool IsJson(string json)
        {
            json = json.Trim();
            if (string.IsNullOrEmpty(json))
                return false;

            var t = json.First();
            if (t == '{' || t == '[')
                return true;

            return false;
        }

    }
View Code

  

  

创建控制台【测试项目】:

加入包【Json.NET】,并加入如下名称空间:

using Newtonsoft.Json;
using System.Collections.Generic;

在控制台中调用:

        static void Main(string[] args)
        {
            Dictionary<string, object> keys = new Dictionary<string, object>
            {
                { "1",2 },
                { "a", "ab" },
                //{ "ab", JsonConvert.SerializeObject(vs3) },
            };

            List<string> vs = new List<string>() { "1", "2" };
            List<string> vs2 = new List<string>() { "3", "4", JsonConvert.SerializeObject(vs) };
            List<string> vs3 = new List<string>() { "5", "6", JsonConvert.SerializeObject(vs2), JsonConvert.SerializeObject(keys) };

            var ss = JsonHelper.ExtractArr(JsonConvert.SerializeObject(vs3));
            //var ss = JsonHelper.ExtractObj(JsonConvert.SerializeObject(keys));
            string sss = ss.ToString();
        }

  

 

测试效果(可视化)

在【www.json.cn】下的可视化结果:

原json效果:

 

处理过后的json效果:

 

 

完成!

posted @ 2019-12-04 14:36  爱恋的红尘  阅读(9817)  评论(0编辑  收藏  举报