C# winfrm程序的主入口捕获项目的全部异常

C# winfrm程序的主入口捕获项目的全部异常

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace com.xxx
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {

            try {
                //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);

                #region ----应用程序的主入口点----
                bool isAppRunning = false;
                Mutex mutex = new Mutex(true, Process.GetCurrentProcess().ProcessName, out isAppRunning);
                if (!isAppRunning) {
                    MessageBox.Show("程序已运行，不能再次打开。");
                    Environment.Exit(1);
                }
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                //Application.Run(new MainFrm());
                Application.Run(new LoginFrm());
                #endregion ----应用程序的主入口点----

            } catch (Exception ex) {
                string str = GetExceptionMsg(ex, string.Empty);
                Common.LogHelper.WriteLog("程序异常", str); //写入日志
                MessageBox.Show(str, "系统错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

        }



        static void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e)
        {
            string str = GetExceptionMsg(e.Exception, e.ToString());
            MessageBox.Show(str, "系统错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            //LogManager.WriteLog(str);//日志
        }

        static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            string str = GetExceptionMsg(e.ExceptionObject as Exception, e.ToString());
            MessageBox.Show(str, "系统错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            //LogManager.WriteLog(str);//日志
        }

        /// <summary>
        /// 生成自定义异常消息
        /// </summary>
        /// <param name="ex">异常对象</param>
        /// <param name="backStr">备用异常消息：当ex为null时有效</param>
        /// <returns>异常字符串文本</returns>
        static string GetExceptionMsg(Exception ex, string backStr)
        {
            StringBuilder sb = new StringBuilder();
            sb.AppendLine("****************************异常文本****************************");
            sb.AppendLine("【出现时间】：" + DateTime.Now.ToString());
            if (ex != null) {
                sb.AppendLine("【异常类型】：" + ex.GetType().Name);
                sb.AppendLine("【异常信息】：" + ex.Message);
                sb.AppendLine("【堆栈调用】：" + ex.StackTrace);
                sb.AppendLine("【异常方法】：" + ex.TargetSite);
            } else {
                sb.AppendLine("【未处理异常】：" + backStr);
            }
            sb.AppendLine("***************************************************************");
            return sb.ToString();
        }


    }
}

转自 网上大佬.