C# WinForm捕获全局异常

根据网上的资料稍微修改了一下,原理很简单,代码如下:

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

namespace WindowsFormsApplication2
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            GlobalExceptionCapture(() => 
            {
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                Application.Run(new Form1());
            });            
        }

        static void GlobalExceptionCapture(Action mainContent) 
        {
            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Main()内容包装的委托
                mainContent();
                #endregion
            }
            catch (Exception ex)
            {
                string str = GetExceptionMsg(ex, string.Empty);
                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);
            //Log.Write(str);
        }

        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);
            //Log.Write(str);
        }

        /// <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 sbr = new StringBuilder();
            sbr.AppendLine("****************************异常文本****************************");
            sbr.AppendLine("【出现时间】:" + DateTime.Now.ToString());
            if (ex != null)
            {
                sbr.AppendLine("【异常类型】:" + ex.GetType().Name);
                sbr.AppendLine("【异常信息】:" + ex.Message);
                sbr.AppendLine("【堆栈调用】:" + ex.StackTrace);
                sbr.AppendLine("【异常对象】:" + ex.Source);
                sbr.AppendLine("【触发方法】:" + ex.TargetSite);
            }
            else
            {
                sbr.AppendLine("【未处理异常】:" + backStr);
            }
            sbr.AppendLine("***************************************************************");
            return sbr.ToString();
        }
    }  
}

posted @ 2020-08-17 10:03  time-flies  阅读(223)  评论(0编辑  收藏
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