/***********************************************************************
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* Project: baifenBinfa.Net *
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* Web: https://baifenBinfa.com *
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* ProjectName: 百分兵法管理系统 *
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* Author: *
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* Email: *
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* CreateTime: 2020-03-02 23:15:19
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* Description: 暂无
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***********************************************************************/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Configuration.Json;
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using Newtonsoft.Json;
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using Newtonsoft.Json.Linq;
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namespace CoreCms.Net.Utility.Helper
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{
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/// <summary>
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/// Json文件读写
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/// 引用Newtonsoft.Json
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/// </summary>
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public class JsonFileHelper
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{
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//注意：section为根节点
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private readonly string _path;
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private IConfiguration Configuration { get; set; }
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public JsonFileHelper(string jsonName)
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{
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_path = !jsonName.EndsWith(".json") ? $"{jsonName}.json" : jsonName;
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//ReloadOnChange = true 当*.json文件被修改时重新加载
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Configuration = new ConfigurationBuilder()
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.Add(new JsonConfigurationSource { Path = _path, ReloadOnChange = true, Optional = true })
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.Build();
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}
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/// <summary>
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/// 读取Json返回实体对象
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/// </summary>
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/// <returns></returns>
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public T Read<T>() => Read<T>("");
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/// <summary>
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/// 根据节点读取Json返回实体对象
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/// </summary>
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/// <returns></returns>
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public T Read<T>(string section)
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{
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using var file = new StreamReader(_path);
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using var reader = new JsonTextReader(file);
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var jObj = (JObject)JToken.ReadFrom(reader);
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if (!string.IsNullOrWhiteSpace(section))
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{
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var secJt = jObj[section];
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if (secJt != null)
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{
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return JsonConvert.DeserializeObject<T>(secJt.ToString());
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}
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}
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else
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{
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return JsonConvert.DeserializeObject<T>(jObj.ToString());
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}
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return default;
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}
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/// <summary>
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/// 读取Json返回集合
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/// </summary>
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/// <returns></returns>
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public List<T> ReadList<T>() => ReadList<T>("");
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/// <summary>
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/// 根据节点读取Json返回集合
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/// </summary>
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/// <returns></returns>
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public List<T> ReadList<T>(string section)
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{
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using var file = new StreamReader(_path);
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using var reader = new JsonTextReader(file);
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var jObj = (JObject)JToken.ReadFrom(reader);
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if (!string.IsNullOrWhiteSpace(section))
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{
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var secJt = jObj[section];
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if (secJt != null)
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{
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return JsonConvert.DeserializeObject<List<T>>(secJt.ToString());
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}
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}
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else
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{
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return JsonConvert.DeserializeObject<List<T>>(jObj.ToString());
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}
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return default;
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}
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/// <summary>
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/// 写入文件
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/// </summary>
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/// <typeparam name="T">自定义对象</typeparam>
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/// <param name="t"></param>
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public void Write<T>(T t) => Write("", t);
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/// <summary>
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/// 写入指定section文件
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/// </summary>
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/// <typeparam name="T">自定义对象</typeparam>
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/// <param name="t"></param>
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public void Write<T>(string section, T t)
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{
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JObject jObj;
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using (StreamReader file = new StreamReader(_path))
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using (JsonTextReader reader = new JsonTextReader(file))
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{
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jObj = (JObject)JToken.ReadFrom(reader);
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var json = JsonConvert.SerializeObject(t);
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if (string.IsNullOrWhiteSpace(section))
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jObj = JObject.Parse(json);
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else
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jObj[section] = JObject.Parse(json);
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}
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using var writer = new StreamWriter(_path);
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using var jsonWriter = new JsonTextWriter(writer);
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jObj.WriteTo(jsonWriter);
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}
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/// <summary>
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/// 删除指定section节点
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/// </summary>
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/// <param name="section"></param>
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/// <exception cref="Exception"></exception>
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public void Remove(string section)
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{
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JObject jObj;
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using (StreamReader file = new StreamReader(_path))
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using (JsonTextReader reader = new JsonTextReader(file))
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{
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jObj = (JObject)JToken.ReadFrom(reader);
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jObj.Remove(section);
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}
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using (var writer = new StreamWriter(_path))
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using (var jsonWriter = new JsonTextWriter(writer))
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{
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jObj.WriteTo(jsonWriter);
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}
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}
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}
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}
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