example/lib/sample.dart

 import 'package:flutter/material.dart';
 import 'package:flutter_clx_base/flutter_clx_base.dart';
 import 'package:flutter_clx_base_example/sample/base_list_widget_test.dart';
+import 'package:flutter_clx_base_example/sample/dio_widget_test.dart';
 
 class Sample extends StatelessWidget {
   const Sample({super.key});
@@ -14,6 +15,10 @@ class Sample extends StatelessWidget {
             fullWidthButton: true,
             onPressed: () => Get.to(const BaseListWidgetTest()),
             text: '列表'),
+        GFButton(
+            fullWidthButton: true,
+            onPressed: () => Get.to(const DioWidgetTest()),
+            text: 'dio'),
       ],
     );
   }

example/lib/sample/dio_widget_test.dart

+import 'package:flutter/material.dart';
+import 'package:flutter_clx_base/api/dio_utils.dart';
+import 'package:flutter_clx_base/flutter_clx_base.dart';
+
+class DioWidgetTest extends StatefulWidget {
+  const DioWidgetTest({super.key});
+
+  @override
+  State<DioWidgetTest> createState() => _DioWidgetTestState();
+}
+
+class _DioWidgetTestState extends State<DioWidgetTest> {
+  static const String getSystemVersionByNumber =
+      '/user-service/system/version/getSystemVersionByNumber';
+  String _result = '';
+
+  @override
+  Widget build(BuildContext context) {
+    return MyScaffold(
+      title: 'DioWidget',
+      children: [
+        Text(_result),
+        TextButton(
+            onPressed: () {
+              DioUtils.instance.request(
+                requestUrl: getSystemVersionByNumber,
+                method: Method.get,
+                queryParameters: {
+                  'versionNumber': 20,
+                  'productNo': 1,
+                },
+                successCallback: (res) {
+                  setState(() {
+                    _result = res.toString();
+                  });
+                },
+                errorCallback: (code, msg) {
+                  setState(() {
+                    _result = msg!;
+                  });
+                },
+              );
+            },
+            child: const Text('dio请求')),
+      ],
+    );
+  }
+}

lib/api/base_dio.dart

+import 'package:dio/dio.dart';
+import 'package:flutter_clx_base/api/base_entity.dart';
+import 'package:flutter_clx_base/utils/log_utils.dart';
+export 'package:dio/dio.dart';
+
+abstract class BaseDio {
+  String getbaseUrl();
+  // 设置请求头拦截器
+  Interceptor getHeadersInterceptor();
+
+  Map<String, dynamic>? setHeaders() => _setHeaders();
+
+  void onNetSuccess(Response response, NetSuccessCallback successCallback,
+          NetErrorCallback? errorCallback) =>
+      _onNetSuccess(response, successCallback, errorCallback);
+
+  final dio = Dio(
+    BaseOptions(
+      connectTimeout: const Duration(seconds: 5),
+      receiveTimeout: const Duration(seconds: 10),
+      contentType: Headers.jsonContentType,
+      // Transform the response data to a String encoded with UTF8.
+      // The default value is [ResponseType.JSON].
+    ),
+  );
+
+  //构造方法
+  BaseDio() {
+    configDio();
+  }
+
+  //配置dio实例
+  void configDio() {
+    dio.options.baseUrl = getbaseUrl();
+    dio.options.headers = setHeaders();
+    dio.interceptors.add(getHeadersInterceptor());
+    dio.interceptors.add(LogInterceptor(responseBody: true));
+  }
+
+  //设置请求头
+  Map<String, dynamic>? _setHeaders() {
+    return {
+      'Content-Type': 'application/json;charset=UTF-8',
+    };
+  }
+
+  // 构建网络请求
+  void request({
+    required String requestUrl,
+    required Method method,
+    Options? options,
+    Map<String, dynamic>? queryParameters,
+    Map<String, dynamic>? data,
+    required NetSuccessCallback successCallback,
+    NetErrorCallback? errorCallback,
+  }) async {
+    try {
+      final Response response = await dio.request(
+        requestUrl,
+        queryParameters: queryParameters,
+        data: data,
+        options: _checkOptions(method.value, options),
+      );
+      onNetSuccess(response, successCallback, errorCallback);
+    } on DioError catch (e) {
+      if (e.response != null) {
+        logger.e(
+            "请求错误：${e.response!.statusCode} ${e.response!.requestOptions.path}");
+      } else {
+        // Something happened in setting up or sending the request that triggered an Error
+        logger.e("请求错误：${e.message}");
+      }
+      errorCallback?.call(500, "服务器请求错误");
+    }
+  }
+
+  // 处理网络请求成功逻辑
+  void _onNetSuccess(Response response, NetSuccessCallback successCallback,
+      NetErrorCallback? errorCallback) {
+    BaseEntity baseEntity = BaseEntity.fromJson(response.data);
+    if (baseEntity.code == 100 || baseEntity.code == "100") {
+      logger.e("登录过期：${baseEntity.message}");
+      return;
+    }
+
+    if (baseEntity.code == 0) {
+      successCallback.call(baseEntity.data);
+    } else {
+      logger.e("请求错误：${baseEntity.code} ${baseEntity.message}");
+      errorCallback?.call(baseEntity.code, baseEntity.message);
+    }
+  }
+}
+
+Options _checkOptions(String method, Options? options) {
+  options ??= Options();
+  options.method = method;
+  return options;
+}
+
+typedef NetSuccessCallback = Function(dynamic data);
+typedef NetErrorCallback = Function(dynamic code, String? msg);
+
+enum Method {
+  get,
+  post,
+  put,
+  patch,
+  delete,
+}
+
+extension MethodExtension on Method {
+  String get value => ['GET', 'POST', 'PUT', 'PATCH', 'DELETE'][index];
+}

lib/api/base_entity.dart

+class BaseEntity {
+  BaseEntity(this.code, this.message, this.data, {this.total = 0,this.amount = 0.0,this.pageNum = 0});
+
+  BaseEntity.fromJson(Map<String, dynamic> json) {
+    code = json['code'];
+    message = json['msg'] as String;
+    data = json['data'];
+    total = json['total'];
+    amount = json['amount'];
+    pageNum = json['pageNum'];
+  }
+
+  dynamic code;
+  late String message;
+  dynamic data;
+  dynamic total;
+  dynamic amount;
+  dynamic pageNum;
+}

lib/api/dio_utils.dart

+import 'package:flutter_clx_base/api/header_interceptor.dart';
+
+import 'base_dio.dart';
+export 'base_dio.dart';
+
+class DioUtils extends BaseDio {
+  static final DioUtils _singleton = DioUtils._internal();
+
+  static DioUtils get instance => _singleton;
+
+  DioUtils._internal();
+
+  @override
+  String getbaseUrl() {
+    return "https://api.clxkj.cn:8088";
+  }
+
+  @override
+  Interceptor getHeadersInterceptor() {
+    return HeaderInterceptor();
+  }
+}

lib/api/header_interceptor.dart

+import 'package:dio/dio.dart';
+
+class HeaderInterceptor extends InterceptorsWrapper {
+  @override
+  onRequest(RequestOptions options, handler) async {
+    options.headers["osType"] = "APP";
+
+    return super.onRequest(options, handler);
+  }
+}

pubspec.yaml

@@ -11,7 +11,7 @@ dependencies:
   flutter:
     sdk: flutter
   # dio https://pub.dev/packages/dio
-  dio: ^4.0.6
+  dio: ^5.1.1
   # 时间选择器 https://pub.dev/packages/flutter_cupertino_datetime_picker
   flutter_cupertino_datetime_picker: ^3.0.0
   # 键盘工具类 https://pub.dev/packages/keyboard_actions