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43
ln_jq_app/lib/storage_service.dart
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43
ln_jq_app/lib/storage_service.dart
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import 'package:get/get.dart';
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import 'package:get_storage/get_storage.dart';
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class StorageService extends GetxService {
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late final GetStorage _box;
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// 定义存储时使用的键名(Key)
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static const String _tokenKey = 'user_token';
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static const String _userIdKey = 'user_id';
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// 提供一个静态的 'to' 方法,方便全局访问
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static StorageService get to => Get.find();
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// Service 初始化
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Future<StorageService> init() async {
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_box = GetStorage();
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return this;
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}
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/// 判断是否已登录 (通过检查 token 是否存在且不为空)
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bool get isLoggedIn =>
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_box
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.read<String?>(_tokenKey)
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?.isNotEmpty ?? false;
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/// 获取 Token
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String? get token => _box.read<String?>(_tokenKey);
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/// 获取 UserId
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String? get userId => _box.read<String?>(_userIdKey);
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/// 保存用户信息
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Future<void> saveLoginInfo({required String token, required String userId}) async {
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await _box.write(_tokenKey, token);
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await _box.write(_userIdKey, userId);
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}
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/// 3. 删除用户信息 (用于退出登录)
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Future<void> clearLoginInfo() async {
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await _box.remove(_tokenKey);
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await _box.remove(_userIdKey);
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}
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}
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