Flutter网络请求插件dio_request_plus的使用

Flutter网络请求插件dio_request_plus的使用

在本教程中，我们将详细介绍如何使用 dio_request_plus 插件来处理网络请求。该插件提供了丰富的功能来简化网络请求的过程。

目录结构

|— client # 基础Http总线封装 |— handle # 处理场景值的处理者 |— interceptor # 通用拦截器 |— model # 通用数据模型

### 完整示例Demo

以下是一个完整的示例，展示了如何使用 `dio_request_plus` 插件进行网络请求。

#### 示例代码

```dart
import 'package:dio_request_plus/dio_request_plus.dart';
import 'package:flutter/material.dart';
import 'package:logger/logger.dart';

// 绑定网络请求的混入类
mixin HttpBinding on State<MyHomePage> {
  // 初始化网络请求配置
  void init() {
    HttpManager.instance.init(
      options: BaseOptions(
        receiveTimeout: 20 * 1000,
        connectTimeout: 20 * 1000,
        sendTimeout: 20 * 1000,
        contentType: Headers.formUrlEncodedContentType,
        responseType: ResponseType.json,
      ),
      enableCache: true,
      logger: Logger(),
      isDebug: true,
    );

    // 创建一个Dio实例
    final dio = HttpImplBuildTool().initDio(
      BaseOptions(
        receiveTimeout: 20 * 1000,
        connectTimeout: 20 * 1000,
        sendTimeout: 20 * 1000,
        contentType: Headers.formUrlEncodedContentType,
        responseType: ResponseType.json,
      ),
    );
  }
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  [@override](/user/override)
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> with HttpBinding {
  int _counter = 0;

  [@override](/user/override)
  void initState() {
    super.initState();
    init(); // 初始化网络请求
  }

  // 网络请求方法
  void fetchData() async {
    // 发起GET请求
    final response = await HttpManager.instance.request(
      '/your-api-endpoint',
      method: Method.GET,
    );

    if (response.isSuccess) {
      // 请求成功，处理响应数据
      print('Response data: ${response.data}');
    } else {
      // 请求失败，处理错误信息
      print('Error: ${response.error}');
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            const Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headline4,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: fetchData, // 调用网络请求方法
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ),
    );
  }
}