C#上位机软件监控属性修改

上位机软件需要监控属性值被修改的情况，简单方法实例：

准备工作：引用log4net，编辑App.config的setting节点，填入key-value，当对应的key的value被修改时，log记录修改前的值和修改后的值。

实例：appSettings填入属性user和password

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
  </configSections>
  <log4net configSource="log4net.config" />
  <appSettings>
    <!--user-->
    <add key="name" value="xu"/>
    <!--password-->
    <add key="password" value="pw123456"/>
  </appSettings>
</configuration>

 

2. 在类SystemConfig.cs中创建name和password的变量并重写get和set（记录变更日志）

namespace Demo_ConfigurationManager
{
    public static class SystemConfig
    {
        private static readonly ILog log = LogManager.GetLogger("Demo_ConfigurationManager");
        public static bool LoadSystemConfig()
        {
            Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
            m_strName = config.AppSettings.Settings["name"].Value;
            m_strPassword = config.AppSettings.Settings["password"].Value;
            log.Info("LoadSystemConfig success");
            return true;
        }

        public static bool SaveSystemConfig()
        {
            Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
            config.AppSettings.Settings["name"].Value = m_strName;
            config.AppSettings.Settings["password"].Value = m_strPassword;
            config.Save(ConfigurationSaveMode.Modified);
            ConfigurationManager.RefreshSection("appSettings");
            log.Info("SaveSystemConfig success");
            return true;
        }

        private static string _name = "";
        public static string m_strName
        {
            get
            {
                return _name;
            }
            set
            {
                if(_name != "" && _name != value)
                {
                    log.Info(string.Format("user property changed from {0}->{1}", _name, value));
                }
                _name = value;
            }
        }

        private static string _password = "";
        public static string m_strPassword
        {
            get
            {
                return _password;
            }
            set
            {
                if(_password != "" && _password != value)
                {
                    log.Info(string.Format("passwrod property changed from {0}->{1}", _password, value));
                }
                _password = value;
            }
        }

    }
}