Flutter远程请求插件remote_request的使用

Flutter远程请求插件remote_request的使用

特性

远程网络请求插件可以响应API的任何操作，例如：

  1. 创建
  2. 读取
  3. 更新
  4. 删除
  5. Put
  6. Patch

未来可能会添加更多操作，包括调用API以及fromMap或toMap的转换。

开始使用

仅需调用Request类即可进行CRUD操作。

使用方法

在使用Request类之前，请确保初始化基础URL和身份验证令牌（拦截器）。

var response = await Request.get(
      "ENDPOINT/get/");
try{
if (response != null && response.statusCode == 200) {
      if (jsonData["status"] == 200) {
        for (var temp in jsonData["data"]) {
          log("Case : $temp");
          cases.add(CaseModel.fromMap(temp));
        }
      } else {
        throw await Request.throwExceptionFromStatusCode(jsonData["status"]);
      }
    }
} on DioException catch (e) {
      log(e.toString());
      throw await Request.throwException(e);
    }

完整示例代码

以下是一个完整的示例代码，展示了如何使用remote_request插件从远程服务器获取数据并解析。

import 'dart:convert';
import 'dart:developer';

import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:remote_request/remote_request.dart';

void main() async {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  [@override](/user/override)
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () {
        RemoteCallsController.getDataFromRemoteNetworkCall();
      },
      child: const Center(
        child: Text("Get Add "),
      ),
    );
  }
}

class RemoteCallsController {
  static Future<void> getDataFromRemoteNetworkCall() async {
    var response = await Request.get("ENDPOINT/get/");
    List<CaseModel>? cases;
    try {
      if (response != null && response.statusCode == 200) {
        var jsonData = response.data;
        if (jsonData["status"] == 200) {
          cases = [];
          for (var temp in jsonData["data"]) {
            log("Case : $temp");
            cases.add(CaseModel.fromMap(temp));
          }
        } else {
          throw await Request.throwExceptionFromStatusCode(jsonData["status"]);
        }
      }
    } on DioException catch (e) {
      log(e.toString());
      throw await Request.throwException(e);
    }
  }
}

// 定义Case模型
class Case {
  final String ticketid;
  final String docket;
  final String meName;
  final String cpName;
  final String cpNumber;
  final String bank;
  final String activityType;
  final DateTime? docketDate;
  final DateTime? assignedDate;
  final DateTime? targetDate;
  final String model;
  final String sla;
  final String priority;
  final String? tl;
  final String remarks;
  final DateTime? planDate;
  final String? previousStatus;
  final String? previousAttendedDate;
  final String? previousFse;
  final String previousNstpCategory;
  final String previousRevisitCategory;
  final DateTime? rejectedDate;
  final String? rejectReason;
  final String address;
  final String mobile;
  final String description;
  final String city;
  final String pincode;
  final String tid;
  final String assignedtime;
  final DateTime? accepteddate;
  final String acceptedtime;

  Case({
    required this.ticketid,
    required this.docket,
    required this.meName,
    required this.cpName,
    required this.cpNumber,
    required this.bank,
    required this.activityType,
    required this.docketDate,
    required this.assignedDate,
    required this.targetDate,
    required this.model,
    required this.sla,
    required this.priority,
    required this.tl,
    required this.remarks,
    required this.planDate,
    required this.previousStatus,
    required this.previousAttendedDate,
    required this.previousFse,
    required this.previousNstpCategory,
    required this.previousRevisitCategory,
    required this.rejectedDate,
    required this.rejectReason,
    required this.mobile,
    required this.address,
    required this.description,
    required this.city,
    required this.pincode,
    required this.tid,
    required this.assignedtime,
    required this.accepteddate,
    required this.acceptedtime,
  });
}

// 将CaseModel转换为Map
String caseModelToMap(CaseModel data) => json.encode(data.toMap());

// 定义CaseModel模型
class CaseModel extends Case {
  CaseModel({
    required super.ticketid,
    required super.docket,
    required super.meName,
    required super.cpName,
    required super.cpNumber,
    required super.bank,
    required super.activityType,
    required super.docketDate,
    required super.assignedDate,
    required super.targetDate,
    required super.model,
    required super.sla,
    required super.priority,
    required super.tl,
    required super.remarks,
    required super.planDate,
    required super.previousStatus,
    required super.previousAttendedDate,
    required super.previousFse,
    required super.previousNstpCategory,
    required super.previousRevisitCategory,
    required super.rejectedDate,
    required super.rejectReason,
    required super.mobile,
    required super.address,
    required super.description,
    required super.city,
    required super.pincode,
    required super.tid,
    required super.assignedtime,
    required super.accepteddate,
    required super.acceptedtime,
  });

  // 从Map创建CaseModel实例
  factory CaseModel.fromMap(Map<String, dynamic> json) => CaseModel(
        ticketid: json["ticketid"] ?? "",
        docket: json["docket"] ?? "",
        meName: json["me_name"] ?? "",
        cpName: json["cp_name"] ?? "",
        cpNumber: json["cp_number"] ?? "",
        bank: json["bank"] ?? "",
        activityType: json["activity_type"] ?? "",
        docketDate: (json["docket_date"] != null)
            ? DateTime.parse(json["docket_date"])
            : null,
        assignedDate: (json["assigneddate"] != null)
            ? DateTime.parse(json["assigneddate"])
            : null,
        targetDate: (json["target_date"] != null)
            ? DateTime.parse(json["target_date"])
            : null,
        model: json["model"] ?? "",
        sla: json["sla"] ?? "",
        priority: json["priority"] ?? "",
        tl: json["tl"] ?? "",
        remarks: json["remarks"] ?? "",
        planDate: (json["plandate"] != null)
            ? DateTime.parse(json["plandate"])
            : null,
        previousStatus: json["previous_status"],
        previousAttendedDate: json["previous_attended_date"],
        previousFse: json["previous_fse"],
        previousNstpCategory: json["previous_nstp_category"],
        previousRevisitCategory: json["previous_revisit_category"],
        rejectedDate: (json["rejecteddate"] != null)
            ? DateTime.parse(json["rejecteddate"])
            : null,
        rejectReason: json["rejecreason"],
        address: json["address"] ?? "",
        mobile: json["mobile"] ?? "",
        description: json["description"],
        city: json["city"] ?? "",
        pincode: json["pincode"] ?? "",
        tid: json["tid"],
        assignedtime: json["assignedtime"] ?? "",
        acceptedtime: json["acceptedtime"] ?? "",
        accepteddate: (json["accepteddate"] != null)
            ? DateTime.parse(json["accepteddate"])
            : null,
      );

  // 将CaseModel转换为Map
  Map<String, dynamic> toMap() => {
        "ticketid": ticketid,
        "docket": docket,
        "me_name": meName,
        "cp_name": cpName,
        "cp_number": cpNumber,
        "bank": bank,
        "activity_type": activityType,
        "docket_date":
            "${docketDate?.year.toString().padLeft(4, '0')}-${docketDate?.month.toString().padLeft(2, '0')}-${docketDate?.day.toString().padLeft(2, '0')}",
        "target_date":
            "${targetDate?.year.toString().padLeft(4, '0')}-${targetDate?.month.toString().padLeft(2, '0')}-${targetDate?.day.toString().padLeft(2, '0')}",
        "model": model,
        "sla": sla,
        "priority": priority,
        "tl": tl,
        "remarks": remarks,
        "previous_status": previousStatus,
        "previous_attended_date": previousAttendedDate,
        "previous_fse": previousFse,
        "previous_nstp_category": previousNstpCategory,
        "previous_revisit_category": previousRevisitCategory,
      };
}

更多关于Flutter远程请求插件remote_request的使用的实战教程也可以访问 https://www.itying.com/category-92-b0.html

1 回复

更多关于Flutter远程请求插件remote_request的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html


当然，我可以为你提供一个关于如何在Flutter中使用remote_request插件进行远程请求的示例代码。不过需要注意的是，由于remote_request并不是一个广泛认知的标准Flutter插件，我会假设这是一个自定义的或者第三方插件，并且它提供了基本的HTTP请求功能。

通常，Flutter开发者会使用更广泛支持的插件如http或dio来进行网络请求。但为了满足你的要求，我将假设remote_request插件具有类似的功能，并给出一个基本的示例。

首先，确保你已经在pubspec.yaml文件中添加了remote_request插件的依赖：

dependencies:
  flutter:
    sdk: flutter
  remote_request: ^x.y.z  # 替换为实际的版本号

然后运行flutter pub get来安装依赖。

接下来，是一个简单的使用remote_request插件进行GET请求的示例：

import 'package:flutter/material.dart';
import 'package:remote_request/remote_request.dart'; // 假设这是插件的导入路径

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Remote Request Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  String _responseData = '';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Flutter Remote Request Demo'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'Response Data:',
            ),
            SizedBox(height: 10),
            Text(
              _responseData,
              style: TextStyle(fontSize: 18),
            ),
            SizedBox(height: 20),
            ElevatedButton(
              onPressed: _fetchData,
              child: Text('Fetch Data'),
            ),
          ],
        ),
      ),
    );
  }

  Future<void> _fetchData() async {
    try {
      // 假设remoteRequest是一个RemoteRequest类的实例，它提供了get方法
      RemoteRequest client = RemoteRequest(); // 根据插件的文档，可能需要不同的初始化方式
      var response = await client.get('https://jsonplaceholder.typicode.com/posts/1');

      // 处理响应数据
      setState(() {
        _responseData = response.body; // 假设response有一个body属性包含响应数据
      });
    } catch (e) {
      // 处理错误
      setState(() {
        _responseData = 'Error: ${e.message}';
      });
    }
  }
}

请注意，上述代码中的RemoteRequest类及其get方法、response.body等细节是基于假设的，因为实际的remote_request插件可能有不同的API设计。你需要参考该插件的官方文档来调整代码。

如果remote_request插件确实存在并且有不同的API设计，你可能需要按照以下方式调整代码：

  1. 查看插件的官方文档以了解如何正确初始化客户端。
  2. 查阅文档以了解如何发送HTTP请求以及如何处理响应。
  3. 根据文档调整上述代码中的类名、方法名和属性名。

希望这个示例能够帮助你开始使用remote_request插件进行远程请求。如果有任何进一步的问题或需要关于特定插件功能的帮助，请查阅该插件的官方文档或寻求插件开发者的支持。

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