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69 lines
2.5 KiB
69 lines
2.5 KiB
using SunlightAggregationManager.UserClass;
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using System.Configuration;
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using System.Data;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Threading;
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namespace SunlightAggregationManager
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{
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/// <summary>
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/// Interaction logic for App.xaml
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/// </summary>
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public partial class App : Application
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{
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protected override void OnStartup(StartupEventArgs e)
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{
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base.OnStartup(e);
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RegisterGlobalExceptionHandlers();
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}
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private void RegisterGlobalExceptionHandlers()
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{
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// 1. 捕获 UI 主线程的未处理异常
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this.DispatcherUnhandledException += App_DispatcherUnhandledException;
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// 2. 捕获非 UI 线程(后台线程)的未处理异常
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AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
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// 3. 捕获 Task 异步任务中的未观察到的异常
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TaskScheduler.UnobservedTaskException += TaskScheduler_UnobservedTaskException;
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}
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// UI线程异常处理
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private void App_DispatcherUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs e)
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{
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LogAndShowError("UI线程发生异常", e.Exception);
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// 【关键】将 Handled 设为 true,告诉 WPF 该异常已被处理,阻止程序自动闪退
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e.Handled = true;
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}
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// 非UI线程异常处理
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private void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
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{
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var exception = e.ExceptionObject as Exception;
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bool isTerminating = e.IsTerminating;
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LogAndShowError($"非UI线程异常 (即将终止: {isTerminating})", exception);
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// 注意:此事件不允许设置 Handled=true,默认情况下致命异常仍会导致程序退出
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}
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// Task线程异常处理
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private void TaskScheduler_UnobservedTaskException(object? sender, UnobservedTaskExceptionEventArgs e)
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{
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LogAndShowError("Task异步任务异常", e.Exception);
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// 标记异常已被观察,防止它被重新抛出导致进程终止
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e.SetObserved();
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}
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private void LogAndShowError(string context, Exception ex)
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{
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// 在这里记录日志或弹出友好的自定义错误提示窗口
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MessageBox.Show($"{context}:\n{ex?.Message}", "程序遇到错误", MessageBoxButton.OK, MessageBoxImage.Error);
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}
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}
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}
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