日志记录帮助类

using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Common
{
    public class Log
    {
        public static string logAddress = ConfigurationManager.AppSettings["LogAddress"] + "Log";

        /// <summary>
        /// 将异常打印到LOG文件
        /// </summary>
        /// <param name="ex">异常</param>
        /// <param name="LogAddress">日志文件地址</param>
        public static void WriteLog(Exception ex, string LogAddress = "")
        {
            if (!Directory.Exists(logAddress))
            {
                Directory.CreateDirectory(logAddress);
            }
            //如果日志文件为空，则默认在Debug目录下新建 YYYY-mm-dd_Log.log文件
            if (LogAddress == "")
            {
                LogAddress = logAddress + '\' +
                    DateTime.Now.Year + '-' +
                    DateTime.Now.Month + '-' +
                    DateTime.Now.Day + "_Log.log";
            }
            //把异常信息输出到文件
            StreamWriter sw = new StreamWriter(LogAddress, true);
            sw.WriteLine("当前时间：" + DateTime.Now.ToString());
            sw.WriteLine("异常信息：" + ex.Message);
            sw.WriteLine("异常对象：" + ex.Source);
            sw.WriteLine("调用堆栈：
" + ex.StackTrace.Trim());
            sw.WriteLine("触发方法：" + ex.TargetSite);
            sw.WriteLine();
            sw.Close();
        }
    }
}