如何从 Flutter Web 中的 google url 获取数据

Posted 2023-02-23

【中文标题】如何从 Flutter Web 中的 google url 获取数据

【英文标题】：How can I get data from google url in flutter web

【发布时间】：2021-04-11 04:17:10

【问题描述】：

我使用包 [http]https://pub.dev/packages/http 从这个 url https://trends.google.com.vn/trends/api/stories/VN_lnk_GMomYwEwAAA_GM_vi?hl=en-US&tz=-420 获取数据

import 'package:http/http.dart' as http;

String url = "https://trends.google.com.vn/trends/api/stories/VN_lnk_GMomYwEwAAA_GM_vi?hl=en-US&tz=-420";
http.Response response = await http.get(url);

然后它抛出错误：

Running with unsound null safety
For more information see https://dart.dev/null-safety/unsound-null-safety
Debug service listening on ws://127.0.0.1:54796/m1rEikri7V4=/ws
/
/home
Error: DioError [DioErrorType.RESPONSE]: XMLHttpRequest error.
    C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/patch/core_patch.dart 906:28                get current
packages/dio/src/adapters/browser_adapter.dart 79:20                                                                           <fn>
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1446:54                                              runUnary
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 150:18                                        handleValue
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 703:44                                        handleValueCallback
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 732:32                                        _propagateToListeners
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 526:7                                         [_complete]
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/stream_pipe.dart 61:11                                         _cancelAndValue
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/stream.dart 1302:7                                             <fn>
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 324:14  _checkAndCall
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 329:39  dcall
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/html/dart2js/html_dart2js.dart 37312:58                              <fn>


    at Object.createErrorWithStack (http://localhost:54668/dart_sdk.js:4368:12)
    at Object._rethrow (http://localhost:54668/dart_sdk.js:38289:16)
    at async._AsyncCallbackEntry.new.callback (http://localhost:54668/dart_sdk.js:38283:13)
    at Object._microtaskLoop (http://localhost:54668/dart_sdk.js:38115:13)
    at _startMicrotaskLoop (http://localhost:54668/dart_sdk.js:38121:13)
    at http://localhost:54668/dart_sdk.js:33618:9

我测试了其他工作很好。如何从这个 url 获取数据？

【问题讨论】：

能否粘贴您收到的确切错误消息。

我已经更新了错误信息。

当您说您使用的是 http 包时，您从 dio 包中得到一个错误？

都是一样的，dio包是包裹http

【参考方案1】：

XMLHttpRequest 错误通常意味着您的 Cors 策略配置不正确。

See here

【讨论】：

你尝试用我的网址请求吗？