using Microsoft.Extensions.Configuration.Json;
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using Microsoft.Extensions.Configuration;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace WIDESEA_Core.Helper
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{
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/// <summary>
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/// appsettings.json操作类
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/// </summary>
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public class AppSettings
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{
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// 定义一个静态的 IConfiguration 对象
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public static IConfiguration Configuration { get; set; }
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// 定义一个静态的 string 对象
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static string contentPath { get; set; }
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// 构造函数，传入 contentPath 参数
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public AppSettings(string contentPath)
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{
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string Path = "appsettings.json";
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//如果你把配置文件 是 根据环境变量来分开了，可以这样写
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//Path = $"appsettings.{Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT")}.json";
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Configuration = new ConfigurationBuilder()
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.SetBasePath(contentPath)
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.Add(new JsonConfigurationSource { Path = Path, Optional = false, ReloadOnChange = true })//这样的话，可以直接读目录里的json文件，而不是 bin 文件夹下的，所以不用修改复制属性
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.Build();
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}
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// 构造函数，传入 IConfiguration 参数
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public AppSettings(IConfiguration configuration)
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{
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Configuration = configuration;
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}
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/// <summary>
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/// 封装要操作的字符
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/// </summary>
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/// <param name="sections">节点配置</param>
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/// <returns></returns>
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public static string Get(params string[] sections)
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{
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try
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{
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if (sections.Any())
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{
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return Configuration[string.Join(":", sections)];
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}
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}
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catch (Exception) { }
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return "";
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}
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/// <summary>
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/// 从配置中获取指定节点下的列表数据
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/// </summary>
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/// <typeparam name="T">列表元素类型</typeparam>
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/// <param name="sections">配置节点路径参数</param>
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/// <returns>绑定后的列表对象</returns>
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/// <remarks>需要引用 Microsoft.Extensions.Configuration.Binder 包</remarks>
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public static List<T> Get<T>(params string[] sections)
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{
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List<T> list = new List<T>();
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// 引用 Microsoft.Extensions.Configuration.Binder 包
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Configuration.Bind(string.Join(":", sections), list);
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return list;
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}
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/// <summary>
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/// 从配置中获取指定路径的值
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/// </summary>
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/// <param name="sectionsPath">配置项的路径</param>
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/// <returns>返回配置值，若获取失败则返回空字符串</returns>
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public static string GetValue(string sectionsPath)
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{
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try
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{
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return Configuration[sectionsPath];
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}
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catch (Exception) { }
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return "";
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}
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}
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}
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