[Mvc]依環境不同自動切換webconfig的appSettings

一、

webconfig:在configSections裡建立sectionGroup與section,並依需要設定各環境所需的值

   <sectionGroup name="MachineA">
      <section name="appSettings" type="System.Configuration.NameValueSectionHandler" />
    </sectionGroup>
 <MachineA>
    <appSettings>
      <add key="TestStringA" value="MachineAStrA" />
      <add key="TestStringB" value="MachineAStrB" />
    </appSettings>
  </MachineA>

二、建立ConfigManager類別庫 方便取值

(一)建立ConfigManager類別庫方便做取值使用

(二)建立Service資料夾,新增類別ConfigManagerService.cs

 public class ConfigManagerService
    {
        /// <summary>
        /// 取得 AppSettings 介面
        /// </summary>
        public static readonly NameValueCollection AppSettings = GetConfigurationUsingAppSettings();
        private static NameValueCollection GetConfigurationUsingAppSettings()
        {
            var configName = GetMachineAppSettings();
            var postSetting = ConfigurationManager.GetSection(configName) as NameValueCollection;
            return postSetting;
        }
        /// <summary>
        /// 取得目前程式運行設備AppSettings
        /// </summary>
        /// <returns></returns>
        private static string GetMachineAppSettings()
        {
            //預設設備為 MachineA
            var defaultMachineName = "MachineA";
            var group = "/appSettings";
            //取得運行主機名稱
            var machineName = Environment.MachineName.Trim().ToUpper();
            string machineAName = "MachineA";//設備A名稱
            string machineBName = "MachineB";//設備B名稱
            if(machineAName.Trim().ToUpper().Contains(machineName))
            {
                machineName = machineAName;
            }
            else if (machineBName.Trim().ToUpper().Contains(machineName))
            {
                machineName = machineBName;
            }
            else
            {
                machineName = defaultMachineName;
            }
            return machineName + group;
        }
    }

三、需要取appSettings值得專案引用ConfigManager類別庫

四、HomeController:測試是否可成功取值

Controller:

 public ActionResult Index()
        {
            ViewData["TestStringA"] =ConfigManagerService.AppSettings["TestStringA"];
            return View();
        }

view:

@{   

    var testStr = ViewData["TestStringA"];

}

<script>

    alert('@testStr');

</script>

ps:可切換ConfigManagerService的defaultMachineName A=>B 看值是否有成功從A切換到B環境

github支援:https://github.com/scottHsuHGIGA/SwitchWebConfig