44 lines
1.5 KiB
Dart
44 lines
1.5 KiB
Dart
import 'package:shelf/shelf.dart';
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import 'dart:io';
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/// 全局异常处理中间件
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/// 捕获所有未处理的异常并返回适当的 HTTP 响应
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Middleware exceptionHandler() {
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return (Handler innerHandler) {
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return (Request request) async {
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try {
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return await innerHandler(request);
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} on FormatException catch (e) {
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// 处理参数格式错误，如无效的 ID
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return Response.badRequest(
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body: 'Invalid parameter format: ${e.message}',
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headers: {'content-type': 'text/plain'},
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);
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} on PathNotFoundException catch (e) {
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// 处理路径未找到
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return Response.notFound('Resource not found: ${e.message}');
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} on FileSystemException catch (e) {
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// 处理文件系统错误
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return Response.internalServerError(
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body: 'File system error: ${e.message}',
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headers: {'content-type': 'text/plain'},
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);
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} on Exception catch (e) {
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// 处理其他已知异常
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return Response.internalServerError(
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body: 'Internal server error: ${e.toString()}',
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headers: {'content-type': 'text/plain'},
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);
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} catch (e, stackTrace) {
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// 处理未知异常
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print('Unhandled exception: $e');
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print('Stack trace: $stackTrace');
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return Response.internalServerError(
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body: 'An unexpected error occurred',
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headers: {'content-type': 'text/plain'},
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);
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}
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};
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};
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}
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