修改或新增AppSetting节点

/// <summary>/// 修改AppSettings中配置/// </summary>/// <param name="key">key值</param>/// <param name="value">相应值</param>public static bool SetConfigValue(string key, string value){try{Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);if (config.AppSettings.Settings[key] != null)config.AppSettings.Settings[key].Value = value;elseconfig.AppSettings.Settings.Add(key, value);config.Save(ConfigurationSaveMode.Modified);ConfigurationManager.RefreshSection("appSettings");return true;}catch{return false;}}

/// <summary>/// 获取AppSettings中某一节点值/// </summary>/// <param name="key"></param>public static string GetConfigValue(string key){Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);if (config.AppSettings.Settings[key] != null)return  config.AppSettings.Settings[key].Value;elsereturn string.Empty;}    获取AppSetting节点值

<log4net><!--定义输出到文件中--><appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender"><!--定义文件存放位置--><file value="log\\" /><appendToFile value="true" /><rollingStyle value="Date" /><datePattern value="yyyyMMdd'.txt'" /><staticLogFileName value="false" /><param name="MaxSizeRollBackups" value="100" /><layout type="log4net.Layout.PatternLayout"><!--每条日志末尾的文字说明--><!--输出格式--><!--样例：2008-03-26 13:42:32,111 [10] INFO  Log4NetDemo.MainClass [(null)] - info--><!--<conversionPattern value="%newline %n记录时间：%date %n线程ID:[%thread] %n日志级别：  %-5level %n出错类：%logger property: [%property{NDC}] - %n错误描述：%message%newline %n"/>--><conversionPattern value="%n记录时间：%date   %n错误描述：%message %n" /></layout></appender><root><level value="ALL" /><!--文件形式记录日志--><appender-ref ref="RollingLogFileAppender" /></root></log4net>

  public static void WriteLog(Type t, Exception ex){ILog log = LogManager.GetLogger(t);log.Error("Error", ex);}public static void WriteLog(Type t, string msg){ILog log = LogManager.GetLogger(t);log.Error(msg);}