1.概要 捕获全部线程的异常 试验，最终结果task的异常没有找到捕获方法
2.代码
2.1.试验1
2.1.1 试验结果
2.2 代码
2.2.1主程序代码
using NLog;
using System;
using System.Threading;
using System.Windows.Forms;
namespace 异常监控
{
static class Program
{
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
try
{
Logger Logger = LogManager.GetCurrentClassLogger();
//设置应用程序处理异常方式：ThreadException处理
Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
//处理UI线程异常
Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(Application_ThreadException);
//处理非UI线程异常
AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
catch(Exception ex)
{
ToolInfo.WriteRecord("SystemLog", "Main", ex.ToString());
}
}
/// <summary>
/// UI异常处理
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
static void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e)
{
ToolInfo.WriteRecord("SystemLog", "Main1", e.Exception.ToString());
}
/// <summary>
/// 非UI异常处理
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
ToolInfo.WriteRecord("SystemLog", "Main2", e.ExceptionObject.ToString());
}
}
}
2.2.2窗口代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace 异常监控
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
throw new Exception("dddd");
}
private void button2_Click(object sender, EventArgs e)
{
Task task = new Task(() =>
{
throw new Exception("dddd");
});
task.Start();
}
private void button3_Click(object sender, EventArgs e)
{
Thread thread = new Thread(() => {
throw new Exception("dddd");
});
thread.Start();
}
}
}
2.2.3日志类
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace 异常监控
{
/// <summary>
/// 通用方法工具类
/// </summary>
public static class ToolInfo
{
/// <summary>
/// 文档记录
/// </summary>
/// <param name="path">文件路径</param>
/// <param name="filename">文件名称</param>
/// <param name="str">内容</param>
public static void WriteRecord(string path, string filename, string str)
{
DateTime nowTime = DateTime.Now;
int nYear = nowTime.Year;
int nMonth = nowTime.Month;
int nDay = nowTime.Day;
int nHour = nowTime.Hour;
//创建记录文件名称
string strDT = "";
string strfilename = "";
strDT = nowTime.Day.ToString() + nowTime.Hour.ToString();
strfilename = string.Format(".\\{0}\\{1}-{2}.txt", path, filename, strDT);
//删除文件名称
for (int i = 1; i < nDay; i++)
{
for (int j = 1; j <= 24; j++)
{
string strLYDT = "";
string strLYfilename = "";
strLYDT = i.ToString() + j.ToString();
strLYfilename = string.Format(".\\{0}\\{1}-{2}.txt", path, filename, strLYDT);
//删除今天之前的文件
if (File.Exists(strLYfilename))
{
File.Delete(strLYfilename);
}
}
}
//记录内容
string strData = "";
strData = nowTime.ToString();
strData += ": ";
strData += str;
strData += "\r\n";
FileStream fs = new FileStream(strfilename, FileMode.Append);
StreamWriter sw = new StreamWriter(fs);
sw.Write(strData);
sw.Flush();
sw.Close();
fs.Close();
}
}
}
2.2 试验2
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApp1
{
class Program
{
static void Main(string[] args)
{
AppDomain currentDomain = AppDomain.CurrentDomain;
currentDomain.UnhandledException += new UnhandledExceptionEventHandler(MyHandler);
try
{
throw new Exception("1");
}
catch (Exception e)
{
Console.WriteLine("Catch clause caught : {0} \n", e.Message);
}
Task t = new Task(() =>
{
throw new Exception("2");
});
t.Start();
Console.ReadKey();
}
static void MyHandler(object sender, UnhandledExceptionEventArgs args)
{
Exception e = (Exception)args.ExceptionObject;
Console.WriteLine("MyHandler caught : " + e.Message);
Console.WriteLine("Runtime terminating: {0}", args.IsTerminating);
}
}
}
2.3 试验3 监控主线程的异常
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace ConsoleApp2
{
class Program
{
static void Main(string[] args)
{
AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
// 创建一个新线程并抛出异常
Thread thread = new Thread(DoSomething);
thread.Start();
// 主线程继续执行其他操作
Console.WriteLine("主线程继续执行其他操作...");
// 防止主线程退出
Console.ReadLine();
}
static void DoSomething()
{
throw new Exception("线程抛出异常");
}
static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
Exception ex = (Exception)e.ExceptionObject;
Console.WriteLine("捕获到异常：" + ex.Message);
}
}
}
