xiaomiMes/MainForm/ClassFile/FALibraryClass/LogMgr.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Windows.Forms;

namespace StandardLibrary
{
    //报警弹窗+运行Log
    public class LogMgr : SingletonTemplate<LogMgr>
    {
        private bool errShow = false;
        //运行
        public void WriteRunLog(string message)
        {
            string filePath = AppDomain.CurrentDomain.BaseDirectory + "\\RunLog\\";
            string fileName = DateTime.Now.ToString("yyyy-MM-dd") + ".txt";
            string time = DateTime.Now.ToString("HH:mm:ss");
            string writeMsg = time + " " + message + "\r\n";
            WriteLog(filePath + fileName, writeMsg);
        }
        //报警
        public void WriteErrLog(string message)
        {
            if (!errShow)
            {
                errShow = true;
                MessageBox.Show(message);
                errShow = false;
            }

            string filePath = AppDomain.CurrentDomain.BaseDirectory + "\\ErrorLog\\";
            string fileName = DateTime.Now.ToString("yyyy-MM-dd") + ".txt";
            string time = DateTime.Now.ToString("HH:mm:ss");
            string writeMsg = time + " " + message + "\r\n";
            WriteLog(filePath + fileName, writeMsg);
        }

        /// <summary>
        /// 写入Log文件
        /// </summary>
        /// <param name="logFile">文件路径+文件名(包含扩展名)</param>
        /// <param name="log">写入内容</param>
        /// <returns></returns>
        private bool WriteLog(string logFile, string log)
        {
            if (!File.Exists(logFile)) NewTxtFile(logFile); //判断文件是否存在，不存在则新建
            try
            {
                using (FileStream fileStream = new FileStream(logFile, FileMode.Open, FileAccess.Write))    //写入文件
                {
                    StreamWriter streamWriter = new StreamWriter(fileStream);
                    //sw.BaseStream的Position或Seek()可移动文件流指针到的任意位置。
                    streamWriter.BaseStream.Seek(0, SeekOrigin.End);  //在txt末尾写入
                    streamWriter.Write(log);      //写入txt文件内容
                    streamWriter.Flush();
                    streamWriter.Close();
                    fileStream.Close();
                }
                return true;
            }
            catch { return false; }
        }

        /// <summary>
        /// 新建txt文件,
        /// </summary>
        /// <param name="txtFile">文件路径+文件名(包含扩展名)</param>
        private void NewTxtFile(string txtFile)
        {
            string path = txtFile.Substring(0, txtFile.LastIndexOf("\\"));
            if (!Directory.Exists(path))
                Directory.CreateDirectory(path); //判断路径是否存在,不存在则创建文件夹
            if (!File.Exists(txtFile))  //判断文件是否存在,不存在则创建TXT文件
            {
                using (FileStream fileStream = new FileStream(txtFile, FileMode.Create, FileAccess.Write))
                {
                    fileStream.Close();
                }
            }
        }
    }
}