diff --git a/lib/service/net.dart b/lib/service/net.dart
index 286e1fdd..57f8ab09 100644
--- a/lib/service/net.dart
+++ b/lib/service/net.dart
@@ -15,6 +15,7 @@ import 'base_model.dart';
 /// 自定义枚举
 enum Method { get, post }
 
+@Deprecated("net need to be cleaned.")
 class Net {
   // 工厂模式
   factory Net() => _getInstance();
@@ -47,7 +48,7 @@ class Net {
   /// 打印拦截器(便于调试)
   static final interceptors = InterceptorsWrapper(
     /// 请求发送前处理处理一些事情
-    onRequest: (RequestOptions options) {
+    onRequest: (options, handler) {
       print("--------------------请求参数---------------------");
       print(json.encode(options.headers));
       print(options.method);
@@ -55,23 +56,23 @@ class Net {
       print(options.baseUrl + options.path);
       print(options.data);
       print("--------------------请求参数---------------------");
-      return options;
+      return handler.next(options);
     },
 
     /// 在数据响应前做一些预处理
-    onResponse: (Response response) {
+    onResponse: (response, handler) {
       // Log.i("--------------------响应结果---------------------");
       // Log.e("response.statusCode", "${response.statusCode}");
       // Log.e("response.data", "${json.encode(response.data)}");
       // Log.e("response.headers", "${response.headers}");
       // Log.i("--------------------响应结果---------------------");
-      return response;
+      return handler.next(response);
     },
 
     /// 错误处理
-    onError: (DioError e) {
+    onError: (DioError e, handler) {
       // Log.e("DioError", "$e");
-      return e;
+      return handler.next(e);
     },
   );
   // 单列模式
diff --git a/lib/utils/network/net_util.dart b/lib/utils/network/net_util.dart
index 7524708a..a983b5d5 100644
--- a/lib/utils/network/net_util.dart
+++ b/lib/utils/network/net_util.dart
@@ -3,7 +3,6 @@ import 'dart:io';
 import 'package:bot_toast/bot_toast.dart';
 import 'package:dio/dio.dart';
 import 'package:get/get.dart' hide Response, FormData, MultipartFile;
-import 'package:logger/logger.dart';
 import 'package:power_logger/power_logger.dart';
 import 'package:provider/provider.dart';
 
@@ -32,14 +31,14 @@ class NetUtil {
     );
     if (_dio == null) _dio = Dio(options);
     dio.interceptors.add(InterceptorsWrapper(
-      onRequest: (RequestOptions options) async => options,
-      onResponse: (Response response) async {
+      onRequest: (options, handler) async => handler.next(options),
+      onResponse: (response, handler) async {
         LoggerData.addData(response);
-        return response;
+        return handler.next(response);
       },
-      onError: (DioError error) async {
+      onError: (error, handler) async {
         _parseErr(error);
-        return error;
+        return handler.next(error);
       },
     ));
   }
@@ -140,17 +139,17 @@ class NetUtil {
     }
 
     switch (err.type) {
-      case DioErrorType.CONNECT_TIMEOUT:
-      case DioErrorType.SEND_TIMEOUT:
-      case DioErrorType.RECEIVE_TIMEOUT:
+      case DioErrorType.connectTimeout:
+      case DioErrorType.sendTimeout:
+      case DioErrorType.receiveTimeout:
         _makeToast('连接超时');
         break;
-      case DioErrorType.RESPONSE:
+      case DioErrorType.response:
         _makeToast('服务器出错');
         break;
-      case DioErrorType.CANCEL:
+      case DioErrorType.cancel:
         break;
-      case DioErrorType.DEFAULT:
+      case DioErrorType.other:
         _makeToast('未知错误');
         break;
     }
diff --git a/pubspec.lock b/pubspec.lock
index cb4f11a2..b90abfde 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -84,7 +84,7 @@ packages:
       name: auto_size_text
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.0"
+    version: "3.0.0-nullsafety.0"
   auto_size_text_pk:
     dependency: transitive
     description:
@@ -252,21 +252,21 @@ packages:
       name: device_info
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.0.0"
+    version: "2.0.0"
   device_info_platform_interface:
     dependency: transitive
     description:
       name: device_info_platform_interface
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.0.1"
+    version: "2.0.0"
   dio:
     dependency: "direct main"
     description:
       name: dio
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "3.0.10"
+    version: "4.0.0-prev3"
   extended_list_library:
     dependency: transitive
     description:
@@ -376,7 +376,7 @@ packages:
       name: flutter_highlight
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.6.0"
+    version: "0.7.0"
   flutter_html:
     dependency: "direct main"
     description:
@@ -423,7 +423,7 @@ packages:
       name: flutter_plugin_android_lifecycle
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.0.11"
+    version: "2.0.0"
   flutter_rating_bar:
     dependency: "direct main"
     description:
@@ -524,7 +524,7 @@ packages:
       name: highlight
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.6.0"
+    version: "0.7.0"
   hive:
     dependency: "direct main"
     description:
@@ -552,14 +552,14 @@ packages:
       name: http
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.12.2"
+    version: "0.13.1"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "3.1.4"
+    version: "4.0.0"
   image:
     dependency: transitive
     description:
@@ -573,14 +573,21 @@ packages:
       name: image_picker
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.6.7+21"
+    version: "0.7.3"
+  image_picker_for_web:
+    dependency: transitive
+    description:
+      name: image_picker_for_web
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.0"
   image_picker_platform_interface:
     dependency: transitive
     description:
       name: image_picker_platform_interface
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.1.1"
+    version: "2.0.0"
   image_stack:
     dependency: "direct main"
     description:
@@ -715,7 +722,7 @@ packages:
       name: package_info
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.4.3+4"
+    version: "2.0.0"
   path:
     dependency: transitive
     description:
@@ -778,7 +785,7 @@ packages:
       name: pedantic
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.9.2"
+    version: "1.11.0"
   permission_handler:
     dependency: "direct main"
     description:
@@ -827,14 +834,7 @@ packages:
       name: power_logger
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.1.3"
-  pretty_json:
-    dependency: transitive
-    description:
-      name: pretty_json
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.1.0"
+    version: "1.0.0-nullsafety.0"
   process:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 294274ac..71c4136e 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -18,7 +18,7 @@ dependencies:
   # 权限组件
   permission_handler: ^5.0.1+1
   # 版本信息
-  package_info: ^0.4.1
+  package_info: ^2.0.0
   #上拉加载
   pull_to_refresh: ^1.6.4
   # 状态管理
@@ -60,7 +60,7 @@ dependencies:
   #滑块
   flutter_slidable: ^0.5.7
   #http
-  dio: ^3.0.10
+  dio: ^4.0.0-prev3
   #骨架
   shimmer: ^1.1.2
   #时间选择
@@ -87,8 +87,8 @@ dependencies:
     git:
       url: http://192.168.2.201:8099/zhangmeng/random_character.git
 
-  image_picker: ^0.6.7+21
-  power_logger: ^0.1.3
+  image_picker: ^0.7.3
+  power_logger: ^1.0.0-nullsafety.0
   flutter_rating_bar: ^3.2.0+1
   jpush_flutter:
     git: