二次开发源码提交

lib/core/exceptions/app_exception.dart

@@ -0,0 +1,61 @@
+/// 应用异常基类
+class AppException implements Exception {
+  final String message;
+  final int? code;
+  final dynamic data;
+
+  AppException(this.message, {this.code, this.data});
+
+  @override
+  String toString() => 'AppException: $message (code: $code)';
+}
+
+/// 网络异常
+class NetworkException extends AppException {
+  NetworkException(super.message, {super.code, super.data});
+}
+
+/// 认证异常
+class AuthException extends AppException {
+  AuthException(super.message, {super.code, super.data});
+}
+
+/// 服务器异常
+class ServerException extends AppException {
+  ServerException(super.message, {super.code, super.data});
+}
+
+/// Token过期异常
+class TokenExpiredException extends AuthException {
+  TokenExpiredException()
+      : super('Token已过期，请重新登录', code: 401);
+}
+
+/// RefreshToken过期异常
+class RefreshTokenExpiredException extends AuthException {
+  RefreshTokenExpiredException()
+      : super('登录已过期，请重新登录', code: 40020);
+}
+
+/// 未授权异常
+class UnauthorizedException extends AuthException {
+  UnauthorizedException() : super('未授权，请先登录', code: 403);
+}
+
+/// 文件不存在异常
+class FileNotFoundException extends AppException {
+  FileNotFoundException() : super('文件不存在', code: 404);
+}
+
+/// 存储空间不足异常
+class StorageSpaceException extends AppException {
+  StorageSpaceException() : super('存储空间不足', code: 507);
+}
+
+/// 两步验证需要异常
+class TwoFactorRequiredException extends AuthException {
+  final String sessionId;
+
+  TwoFactorRequiredException(this.sessionId)
+      : super('需要两步验证', code: 203);
+}