UI主程序增加异常捕获
1、适用客户端程序,如winform,WPF程序;
目的:当有的功能模块代码,没有漏掉异常捕获,会导致整个程序自动异常关掉(UI线程),为了确保整个程序正常运行,即使别人写的模块有问题我也能正常运行,并能捕获异常,保证UI线程健壮;
增加整个UI线程异常捕获
/// <summary> /// 应用程序的主入口点。 /// </summary> [STAThread] static void Main() { BindExceptionHandler(); Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new Form1()); } /// <summary> /// 绑定程序中的异常处理 /// </summary> private static void BindExceptionHandler() { //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); //处理未捕获的异常 AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException); } /// <summary> /// 处理UI线程异常 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private 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); } /// <summary> /// 处理未捕获的异常 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private 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); } /// <summary>h /// 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> private 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); 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(); }