根据车籍地获取地区代码(城市)

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篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了根据车籍地获取地区代码(城市)相关的知识,希望对你有一定的参考价值。

json文件CityInfo.json 内容如下

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对象如下(对象的属性名需要和json中的对象名一致):

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Model
{
    public class CityInfo
    {
        /// <summary>
        /// 车牌前两位
        /// </summary>
        public string Hp { get; set; }
        /// <summary>
        /// 城市
        /// </summary>
        public string City { get; set; }
        /// <summary>
        /// 省份
        /// </summary>
        public string Province { get; set; }
        /// <summary>
        /// 拼音缩写
        /// </summary>
        public string Pcode { get; set; }
        /// <summary>
        /// 地区代码
        /// </summary>
        public string AreaCode { get; set; }
    }
}

 

获取方法:

      /// <summary>
        /// 根据号牌获取车籍地所在的地区代码
        /// </summary>
        /// <param name="Num">号牌号码</param>
        /// <returns></returns>
        public string GetAreaCodeByNum(string Num)
        {
            string hp = Num.Substring(0, 2);//号牌前2位,例如陕A
            string areaCode = "";//区域代码
            using (StreamReader file = File.OpenText("CityInfo.json"))
            {
                using (JsonTextReader reader = new JsonTextReader(file))
                {
                    JObject jsonobject = (JObject)JToken.ReadFrom(reader);
                    string jCodeInfoList = jsonobject["CodeInfo"].ToString();
                    var cityList = Newtonsoft.Json.Linq.JArray.Parse(jCodeInfoList);
                    List<CityInfo> codeInfoList = cityList.ToObject<List<CityInfo>>();
                    foreach (var codeInfo in codeInfoList)
                    {
                        if (hp.Contains(codeInfo.Hp))
                        {
                            areaCode = codeInfo.AreaCode;
                            break;
                        }
                    }
                    return areaCode;
                }
            }
        }

 

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