C#的多线程及log日志

时间 2019-11-06

标签 c# 多线程 log 日志栏目 C# 繁體版

原文原文链接

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Reflection;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        static CancellationTokenSource cts = new CancellationTokenSource();
        static void Main(string[] args)
        {
            Console.WriteLine("Main threadId is:" +
                                 Thread.CurrentThread.ManagedThreadId);
            //Task.Factory.StartNew(ShowMessage, cts.Token);

            Task my_task = new Task(ShowMessage, cts.Token);
            my_task.Start();
            Thread.Sleep(3000);
            cts.Cancel();

            //Thread thread = new Thread(new ThreadStart(message.ShowMessage));
            //thread.Start();
            Console.WriteLine("Do something ..........!");
            Console.WriteLine("Main thread working is complete!");
            Console.ReadKey();
        }
        static void ShowMessage()
        {
            while (!cts.IsCancellationRequested)
            {
                Console.WriteLine(DateTime.Now);
                Thread.Sleep(1000);
            }
                     
        }
    }

}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace WindowsFormsApplication1
{
    class LogClass
    {
        /**/
        /// <summary>
        /// 写入日志文件
        /// </summary>
        /// <param name="input"></param>
        public static void WriteLogFile(string input)
        {
            /**/
            ///指定日志文件的目录
            string fname = Directory.GetCurrentDirectory() + "\\LogFile.txt";
            /**/
            ///定义文件信息对象

            FileInfo finfo = new FileInfo(fname);

            if (!finfo.Exists)
            {
                FileStream fs;
                fs = File.Create(fname);
                fs.Close();
                finfo = new FileInfo(fname);
            }

            /**/
            ///判断文件是否存在以及是否大于2K
            if (finfo.Length > 1024 * 1024 * 10)
            {
                /**/
                ///文件超过10MB则重命名
                File.Move(Directory.GetCurrentDirectory() + "\\LogFile.txt", Directory.GetCurrentDirectory() + DateTime.Now.TimeOfDay + "\\LogFile.txt");
                /**/
                ///删除该文件
                //finfo.Delete();
            }
            //finfo.AppendText();
            /**/
            ///建立只写文件流

            using (FileStream fs = finfo.OpenWrite())
            {
                /**/
                ///根据上面建立的文件流建立写数据流
                StreamWriter w = new StreamWriter(fs);

                /**/
                ///设置写数据流的起始位置为文件流的末尾
                w.BaseStream.Seek(0, SeekOrigin.End);

                /**/
                ///写入“Log Entry : ”
                //w.Write("\n\rLog Entry : ");

                /**/
                ///写入当前系统时间并换行
                w.Write("\n\r{0} {1} ", DateTime.Now.ToLongTimeString(),
                    DateTime.Now.ToLongDateString());

                /**/
                ///写入日志内容并换行
                w.Write(input + "\n\r");

                /**/
                ///写入------------------------------------“并换行
                w.Write("------------------------------------\n\r");

                /**/
                ///清空缓冲区内容，并把缓冲区内容写入基础流
                w.Flush();

                /**/
                ///关闭写数据流
                w.Close();
            }

        }
    }
}

1: using System;
   2: using System.Collections.Generic;
   3: using System.Text;
   4: using System.Diagnostics;
   5: using System.IO;
   6:  
   7: namespace ProjectLog
   8: {
   9:     public class ProjectTraceListener : TraceListener
  10:     {
  11:         public string FilePath { get; private set; }
  12:  
  13:         public ProjectTraceListener(string filePath)
  14:         {
  15:             FilePath = filePath;
  16:         }
  17:  
  18:         public override void Write(string message)
  19:         {
  20:             File.AppendAllText(FilePath, message);
  21:         }
  22:         public override void WriteLine(string message)
  23:         {
  24:             File.AppendAllText(FilePath, DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss    ") + message + Environment.NewLine);
  25:         }
  26:         public override void Write(object o, string category)
  27:         {
  28:             string message = string.Empty;
  29:             if (!string.IsNullOrEmpty(category))
  30:             {
  31:                 message = category + ":";
  32:             }
  33:             if (o is Exception)//若是参数对象o是与Exception类兼容,输出异常消息+堆栈,不然输出o.ToString()
  34:             {
  35:                 var ex = (Exception)o;
  36:                 message += ex.Message + Environment.NewLine;
  37:                 message += ex.StackTrace;
  38:             }
  39:             else if(null != o)
  40:             {
  41:                 message += o.ToString();
  42:             }
  43:  
  44:             WriteLine(message);
  45:         }
  46:     }
  47: }
  
  
  
  
  
  
  using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Reflection;
using System.Threading.Tasks;
using System.Diagnostics;
using System.IO;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Trace.Listeners.Clear();
            Trace.Listeners.Add(new MyTraceListener());

            Test();
            Console.ReadKey();
        }
        static void Test()
        {
            try
            {
                int i = 0;
                Console.WriteLine(5 / i);
            }
            catch (Exception ex)
            {
                Trace.WriteLine("出现异常:" + ex.Message +"1");//记录日志
                Trace.TraceError("出现异常:" + ex.Message + "2");//记录日志
                Trace.TraceWarning("出现异常:" + ex.Message + "3");//记录日志
                Trace.TraceInformation("出现异常:" + ex.Message + "4");//记录日志
                Trace.Flush();//当即输出
            }
                   
        }
    }

    class MyTraceListener : TraceListener
    {
        public override void Write(string message)
        {
            File.AppendAllText("e:\\1.log", message);
        }
        public override void WriteLine(string message)
        {
            File.AppendAllText("e:\\1.log", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss    ") + message + Environment.NewLine);
        }
    }

}

ConsoleApplication1.vshost.exe Error: 0 : 2016-12-04 22:53:09    出现异常:Attempted to divide by zero.
2016-12-04 23:13:14    出现异常:Attempted to divide by zero.
2016-12-04 23:14:04    出现异常:Attempted to divide by zero.1
2016-12-04 23:14:04    出现异常:Attempted to divide by zero.2
2016-12-04 23:14:04    出现异常:Attempted to divide by zero.3
2016-12-04 23:14:04    出现异常:Attempted to divide by zero.4
2016-12-04 23:17:14    出现异常:Attempted to divide by zero.1
ConsoleApplication1.vshost.exe Error: 0 : 2016-12-04 23:17:14    出现异常:Attempted to divide by zero.2
ConsoleApplication1.vshost.exe Warning: 0 : 2016-12-04 23:17:14    出现异常:Attempted to divide by zero.3
ConsoleApplication1.vshost.exe Information: 0 : 2016-12-04 23:17:14    出现异常:Attempted to divide by zero.4
2016-12-04 23:17:25    出现异常:Attempted to divide by zero.1
ConsoleApplication1.vshost.exe Error: 0 : 2016-12-04 23:17:25    出现异常:Attempted to divide by zero.2
ConsoleApplication1.vshost.exe Warning: 0 : 2016-12-04 23:17:25    出现异常:Attempted to divide by zero.3
ConsoleApplication1.vshost.exe Information: 0 : 2016-12-04 23:17:25    出现异常:Attempted to divide by zero.4

http://blog.csdn.net/qinyuanpei/article/details/53054002ide