Flutter：在应用程序崩溃之前捕获ClientException（在收到完整标头之前连接关闭）

Posted 2021-05-16 dingwen_blog

前言

发生网络请求错误的时候捕获到异常并做提示。

import 'dart:async';
import 'dart:convert';
import 'package:daily_score_mobile/model/student_info_model.dart';
import 'package:daily_score_mobile/model/student_model.dart';
import 'package:daily_score_mobile/util/params_util.dart';
import 'package:http/http.dart' as http;
import 'package:daily_score_mobile/constant/api_constant.dart';
import 'package:fluttertoast/fluttertoast.dart';

/// student 数据访问接口
/// @author: dingwen
/// @date: 2021/5/1
class StudentDao {
  /// 登录
  static Future<StudentModel> login({Map data}) async {
    final response = await http.post(Uri.parse(login_uri),
        headers: {"content-type": "application/json"},
         body: jsonEncode(data))
         .catchError((onError){
	      Fluttertoast.showToast(
	        msg: "服务器异常，请联系管理员",
	      );
    });
      return null;
    }
}