.NET写日志-log

 /// <summary>
        /// 寫log add by Rain 做测试用
        /// </summary>
        /// <param name="Logmessage"></param>
        public void WriteLog(string Logmessage)
        {
            string logtime = DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss");
            string logfilename = "AutoRejectServicelog" + DateTime.Now.ToString("yyyyMMdd") + ".txt";
            //string savePath =System.Web.HttpContext.Current.Server.MapPath(@"log");
            //string savePath = AppDomain.CurrentDomain.BaseDirectory + @"log\";
            string savePath = "C:\\AutoReject\\log";
            if (!System.IO.Directory.Exists(savePath))
            { //需要注意的是，需要对这个物理路径有足够的权限，否则会报错   
                //另外，这个路径应该是在网站之下，而将网站部署在C盘却把上传文件保存在D盘
                System.IO.Directory.CreateDirectory(savePath);
            }
            Logmessage = "記錄執行步驟信息：進入該事件時間：" + logtime + "\r\n" + "相關信息：\r\n" + Logmessage + "\r\n";
            System.IO.StreamWriter fd = new System.IO.StreamWriter(savePath + "\\" + logfilename, true, System.Text.Encoding.Default);
            fd.WriteLine(Logmessage);
            fd.Flush();
            fd.Close();
        }

        /// <summary>
        /// 寫log add by Rain 做测试用
        /// </summary>
        /// <param name="Logmessage"></param>
        public void WriteErrorLog(string Logmessage)
        {
            string logtime = DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss");
            string logfilename = "AutoRejectServicelog" + DateTime.Now.ToString("yyyyMMdd") + ".txt";
            //string savePath =System.Web.HttpContext.Current.Server.MapPath(@"log");
            //string savePath = AppDomain.CurrentDomain.BaseDirectory + @"log\";
            string savePath = "C:\\AutoReject\\log";
            if (!System.IO.Directory.Exists(savePath))
            { //需要注意的是，需要对这个物理路径有足够的权限，否则会报错   
                //另外，这个路径应该是在网站之下，而将网站部署在C盘却把上传文件保存在D盘
                System.IO.Directory.CreateDirectory(savePath);
            }
            Logmessage = "系統發生錯誤，發生時間：" + logtime + "\r\n" + "錯誤信息：\r\n" + Logmessage + "\r\n";
            System.IO.StreamWriter fd = new System.IO.StreamWriter(savePath + "\\" + logfilename, true, System.Text.Encoding.Default);
            fd.WriteLine(Logmessage);
            fd.Flush();
            fd.Close();
        }