Sanya-ips/ipslib/Ips.Library.DxpLib/Tools/ToolConfig.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Configuration;
using System.IO;
using System.ComponentModel;
using Ips.Library.Basic;

namespace Ips.Library.DxpLib
{
    public class ToolConfig
    {
        public static string GetAppSetting(string key, string defaultVal = "")
        {
            string val = ConfigurationManager.AppSettings[key];
            return val.IfNullOrWhitespace(defaultVal);
        }
        /// <summary>
        /// 获取App.config配置文件中appSettings节点中指定key的value
        /// <para>如果泛型为bool,则{"1","true","True","TRUE"}都会被转换成true,否则转换为false</para>
        /// <para>该方法支持int?、double?等可空类型的转换</para>
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="key"></param>
        /// <param name="defaultVal"></param>
        /// <returns></returns>
        public static T GetAppSetting<T>(string key, T defaultVal = default)
        {
            var str = System.Configuration.ConfigurationManager.AppSettings[key];
            if (string.IsNullOrWhiteSpace(str))
            {
                return defaultVal;
            }
            str = str.Trim();
            bool isNullable = typeof(T).IsGenericType && typeof(T).GetGenericTypeDefinition() == typeof(Nullable<>);
            if (isNullable)
            {
                NullableConverter nullableConverter = new NullableConverter(typeof(T));
                return (T)nullableConverter.ConvertFromString(str);
            }
            else if (typeof(T) == typeof(bool))
            {
                if (str.ToLower().Trim() == "true" || str.ToLower().Trim() == "1")
                {
                    T boolVal = (T)Convert.ChangeType(true, typeof(T));
                    return boolVal;
                }
                else
                {
                    T boolVal = (T)Convert.ChangeType(false, typeof(T));
                    return boolVal;
                }
            }
            else
            {
                T ret = (T)Convert.ChangeType(str, typeof(T));
                return ret;
            }
        }
        public static void SetAppSetting(string key, string value)
        {
            Configuration configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
            if (ConfigurationManager.AppSettings[key] == null)
            {
                configuration.AppSettings.Settings.Add(key, value);
            }
            else
            {
                configuration.AppSettings.Settings[key].Value = value;
            }
            RefreshAndSaveSection(configuration);
        }

        public static T GetAppSetting<T>(string key) where T : struct
        {
            var @string = ConfigurationManager.AppSettings[key];
            var td = TypeDescriptor.GetConverter(typeof(T));
            return (T)td.ConvertFromInvariantString(@string);
        }

        public static void SetAppSetting<T>(string key, T value) where T : struct
        {
            var td = TypeDescriptor.GetConverter(typeof(T));
            var @string = td.ConvertToInvariantString(value);
            SetAppSetting(key, @string);
        }

        public static void SetAppSetting(Dictionary<string, string> settings)
        {
            if (settings == null || settings.Count == 0) return;
            Configuration configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
            foreach (var setting in settings)
            {
                string key = setting.Key;
                string value = setting.Value;
                if (ConfigurationManager.AppSettings[key] == null)
                {
                    configuration.AppSettings.Settings.Add(key, value);
                }
                else
                {
                    configuration.AppSettings.Settings[key].Value = value;
                }
            }
            RefreshAndSaveSection(configuration);
        }

        public static void RefreshAndSaveSection(Configuration config)
        {
            string configPath = config.FilePath;
            FileInfo fileInfo = new FileInfo(configPath);
            fileInfo.Attributes = FileAttributes.Normal;
            config.Save(ConfigurationSaveMode.Modified);
            ConfigurationManager.RefreshSection("appSettings");
        }
    }
}