using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SLH.SSDMS.Common
{
    public class ConfigHelper
    {
        /// <summary>
        /// 获取配置
        /// </summary>
        /// <param name="sections">节点配置</param>
        /// <returns></returns>
        public static string GetConfig(string sections)
        {
            try
            {
                return ConfigurationManager.AppSettings[sections].ToString();
            }
            catch (Exception) { }

            return "";
        }

        /// <summary>
        /// 更新Config文件，若Key已存在，替换当前Val值；不存在则添加新的键值对
        /// </summary>
        /// <param name="str_newKey"></param>
        /// <param name="str_newVal"></param>
        public static void UpdateAppConfig(string key, string value)
        {
            //增加的内容写在appSettings段下 <add key="RegCode" value="0"/>  
            System.Configuration.Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
            if (config.AppSettings.Settings[key] == null)
            {
                config.AppSettings.Settings.Add(key, value);
            }
            else
            {
                config.AppSettings.Settings[key].Value = value;
            }
            config.Save(ConfigurationSaveMode.Modified);
            ConfigurationManager.RefreshSection("appSettings");//重新加载新的配置文件   


        }
    }
}