feat(core): 重构Dio客户端并添加模型解析功能

lib/core/dio_client.dart → lib/core/dio/dio_client.dart

@@ -1,19 +1,24 @@
 import 'dart:convert';
 import 'package:dio/dio.dart';
+import 'package:flutter_application/models/user_model.dart';
 import 'package:flutter_easyloading/flutter_easyloading.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'dio_exception.dart'; // 后续创建自定义异常
 import 'package:flutter_dotenv/flutter_dotenv.dart';
 
-// Dio网络请求封装类 - 全局单例
-class HttpManager {
-  // 全局单例实例
-  static final HttpManager _instance = HttpManager._internal();
-  factory HttpManager() => _instance;
+/// Dio 网络请求封装类 - 全局单例
+class DioClient {
+  /// 全局单例实例
+  static final DioClient _instance = DioClient._internal();
+  factory DioClient() => _instance;
   late Dio _dio;
+  // 统一Token存储键名
+  static const String _tokenKey = 'auth_token';
+  static const String _userInfoKey = 'userInfo';
   static String baseUrl = dotenv.env['API_BASE_URL'] ?? 'http://nest-api.weibin.xyz';
+
   // 私有构造方法 - 初始化Dio
-  HttpManager._internal() {
+  DioClient._internal() {
     // 1. 初始化Dio基础配置
     BaseOptions options = BaseOptions(
       // 从环境工具类获取基础地址（多环境自动切换）
@@ -42,7 +47,7 @@ class HttpManager {
   void _addInterceptors() {
     _dio.interceptors.add(InterceptorsWrapper(
         // 请求拦截：发送请求前执行（加Token、打印日志、修改请求头等）
-        onRequest: (RequestOptions options, RequestInterceptorHandler handler) {
+        onRequest: (RequestOptions options, RequestInterceptorHandler handler) async {
       // 开发环境打印请求日志
       // if (EnvUtils.isDev) {
       print('【请求】[${options.method}] ${options.uri}');
@@ -51,7 +56,7 @@ class HttpManager {
       // }
 
       // 自动添加Token（从本地存储获取，登录后才有）
-      _addTokenToHeader(options);
+      await _addTokenToHeader(options);
 
       handler.next(options); // 继续执行请求
     },
@@ -151,6 +156,75 @@ class HttpManager {
     }
   }
 
+  /// 解析单个对象模型
+  Future<T> getModel<T>(
+    String url, {
+    // 解析函数：接收Map，返回模型实例（json_serializable自动生成）
+    required T Function(Map<String, dynamic>) fromJson,
+    Map<String, dynamic>? params,
+    bool showLoading = true,
+    CancelToken? cancelToken,
+  }) async {
+    try {
+      if (showLoading) EasyLoading.show(status: 'Loading...');
+      final response = await _dio.get(
+        url,
+        queryParameters: params,
+        cancelToken: cancelToken,
+      );
+      // 核心：将响应数据转为模型对象
+      return fromJson(response.data as Map<String, dynamic>);
+    } finally {
+      if (showLoading) EasyLoading.dismiss();
+    }
+  }
+
+  /// 解析数组列表模型
+  Future<List<T>> getList<T>(
+    String url, {
+    required T Function(Map<String, dynamic>) fromJson,
+    Map<String, dynamic>? params,
+    bool showLoading = true,
+    CancelToken? cancelToken,
+  }) async {
+    try {
+      if (showLoading) EasyLoading.show(status: 'Loading...');
+      final response = await _dio.get(
+        url,
+        queryParameters: params,
+        cancelToken: cancelToken,
+      );
+      // 遍历数组，逐个解析为模型
+      final dataList = response.data as List;
+      return dataList.map((item) => fromJson(item as Map<String, dynamic>)).toList();
+    } finally {
+      if (showLoading) EasyLoading.dismiss();
+    }
+  }
+
+  /// POST请求（支持模型解析）
+  Future<T> postModel<T>(
+    String url, {
+    required T Function(Map<String, dynamic>) fromJson,
+    Map<String, dynamic>? data,
+    Map<String, dynamic>? params,
+    bool showLoading = true,
+    CancelToken? cancelToken,
+  }) async {
+    try {
+      if (showLoading) EasyLoading.show(status: 'Loading...');
+      final response = await _dio.post(
+        url,
+        data: data,
+        queryParameters: params,
+        cancelToken: cancelToken,
+      );
+      return fromJson(response.data as Map<String, dynamic>);
+    } finally {
+      if (showLoading) EasyLoading.dismiss();
+    }
+  }
+
   /// 封装GET请求
   /// [url]：接口路径（无需加baseUrl）
   /// [params]：请求参数（queryParameters）
@@ -170,8 +244,6 @@ class HttpManager {
         cancelToken: cancelToken,
       );
       return response.data as T;
-    } catch (e) {
-      rethrow; // 抛出自定义异常，让上层处理
     } finally {
       if (showLoading) EasyLoading.dismiss();
     }
@@ -206,21 +278,29 @@ class HttpManager {
     }
   }
 
-  /// 扩展：设置全局Token（登录后调用）
+  /// 设置全局Token（登录后调用）
   Future<void> setToken(String token) async {
     final prefs = await SharedPreferences.getInstance();
-    await prefs.setString('user_token', token);
+    await prefs.setString(_tokenKey, token);
   }
 
-  /// 扩展：移除Token（登出后调用）
+  ///移除Token（登出后调用）
   Future<void> removeToken() async {
     final prefs = await SharedPreferences.getInstance();
-    await prefs.remove('user_token');
+    await prefs.remove(_tokenKey);
+  }
+
+  ///设置 userInfo
+  Future<void> setUserInfo(UserInfo userInfo) async {
+    final prefs = await SharedPreferences.getInstance();
+    // 将对象转为 JSON 字符串
+    final jsonString = jsonEncode(userInfo.toJson());
+    await prefs.setString(_userInfoKey, jsonString);
   }
 
-  /// 扩展：获取Dio原生实例（特殊场景使用）
+  /// 获取Dio原生实例（特殊场景使用）
   Dio get dio => _dio;
 }
 
-// 全局快捷实例（上层调用更简洁）
-final httpManager = HttpManager();
+/// 全局快捷实例（上层调用更简洁）
+final dio = DioClient();

lib/main.dart

@@ -2,11 +2,14 @@ import 'package:flutter/material.dart';
 import 'package:flutter_easyloading/flutter_easyloading.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:flutter_dotenv/flutter_dotenv.dart';
-
 import 'router.dart';
 
+import 'package:flutter_application/utils/log_utils.dart';
+
 void main() async {
-  // 必须添加：初始化Flutter绑定（异步操作前必备）
+  // 初始化日志工具
+  LogUtils.init();
+  // 初始化Flutter绑定（异步操作前必备）
   WidgetsFlutterBinding.ensureInitialized();
 
   // 加载.env文件（指定asset路径，兼容Web）

lib/models/user_model.dart

@@ -0,0 +1,52 @@
+import 'package:json_annotation/json_annotation.dart';
+part 'user_model.g.dart';
+
+@JsonSerializable()
+class LoginData {
+  final String token;
+  final UserInfo userInfo;
+
+  LoginData({required this.token, required this.userInfo});
+
+  // json_serializable 自动生成的解析方法
+  factory LoginData.fromJson(Map<String, dynamic> json) => _$LoginDataFromJson(json);
+  Map<String, dynamic> toJson() => _$LoginDataToJson(this);
+}
+
+@JsonSerializable()
+class UserInfo {
+  final int id;
+  final String username;
+  final String email;
+  final String mobile;
+  final String avatar;
+  final String nickName;
+  final String role;
+  final int roleId;
+  final String roleName;
+  final bool status;
+  final String desc;
+  final bool isDeleted;
+  final DateTime createdTime;
+  final DateTime updatedTime;
+
+  UserInfo({
+    required this.id,
+    required this.username,
+    required this.email,
+    required this.mobile,
+    required this.avatar,
+    required this.nickName,
+    required this.role,
+    required this.roleId,
+    required this.roleName,
+    required this.status,
+    required this.desc,
+    required this.isDeleted,
+    required this.createdTime,
+    required this.updatedTime,
+  });
+
+  factory UserInfo.fromJson(Map<String, dynamic> json) => _$UserInfoFromJson(json);
+  Map<String, dynamic> toJson() => _$UserInfoToJson(this);
+}

lib/pages/category.dart → lib/pages/category/category.dart

@@ -2,7 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:go_router/go_router.dart';
 
-import '../models/category_model.dart';
+import '../../models/category_model.dart';
 
 class CategoryPage extends StatefulWidget {
   const CategoryPage({super.key});