我正在使用 Flutter DIO 库。 它在我的 Android 应用程序上运行良好,但在 Web 上出现错误。
Error: DioError [DioErrorType.response]: XMLHttpRequest error.
如果我尝试使用 http 相同的 url,它在 Web 上工作正常。 我的 Dio 库代码
Dio dio = Dio();
dio.options.method = "POST";
dio.options.headers["Access-Control-Allow-Origin"] = "*";
dio.options.headers["Access-Control-Allow-Credentials"] = true;
dio.options.headers["Access-Control-Allow-Headers"] =
"Origin,Content-Type,X-Amz-Date,Authorization,X-Api-Key,X-Amz-Security-Token,locale";
dio.options.headers["Access-Control-Allow-Methods"] =
"GET, HEAD, POST, OPTIONS";
var response = await dio
.post('http://45.79.124.182/app_php/PagarGuru_test/requestAdd.php');
错误日志
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/patch/core_patch.dart 908:28 get current
packages/dio/src/dio_mixin.dart 819:20 assureDioError
packages/dio/src/dio_mixin.dart 678:13 _dispatchRequest
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 60:31 <fn>
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1692:54 runBinary
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 175:22 handleError
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 779:46 handleError
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 800:13 _propagateToListeners
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 610:5 [_completeError]
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 666:7 callback
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/schedule_microtask.dart 40:11 _microtaskLoop
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/schedule_microtask.dart 49:5 _startMicrotaskLoop
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 166:15 <fn>
at Object.throw_ [as throw] (http://localhost:58438/dart_sdk.js:5374:11)
at http://localhost:58438/packages/dio/src/interceptors/log.dart.lib.js:1390:21
at _RootZone.runBinary (http://localhost:58438/dart_sdk.js:40508:58)
at _FutureListener.catchError.handleError (http://localhost:58438/dart_sdk.js:35445:33)
at handleError (http://localhost:58438/dart_sdk.js:36033:51)
at Function._propagateToListeners (http://localhost:58438/dart_sdk.js:36059:17)
at _Future.new.[_completeError] (http://localhost:58438/dart_sdk.js:35905:23)
at _SyncCompleter.new.[_completeError] (http://localhost:58438/dart_sdk.js:35363:36)
at _SyncCompleter.new.completeError (http://localhost:58438/dart_sdk.js:35286:29)
at onError (http://localhost:58438/dart_sdk.js:35131:60)
at _RootZone.runBinary (http://localhost:58438/dart_sdk.js:40508:58)
at _FutureListener.then.handleError (http://localhost:58438/dart_sdk.js:35445:33)
at handleError (http://localhost:58438/dart_sdk.js:36033:51)
at Function._propagateToListeners (http://localhost:58438/dart_sdk.js:36059:17)
at _Future.new.[_completeError] (http://localhost:58438/dart_sdk.js:35905:23)
at async._AsyncCallbackEntry.new.callback (http://localhost:58438/dart_sdk.js:35944:31)
at Object._microtaskLoop (http://localhost:58438/dart_sdk.js:40808:13)
at _startMicrotaskLoop (http://localhost:58438/dart_sdk.js:40814:13)
at http://localhost:58438/dart_sdk.js:36279:9
我尝试了其他论坛的答案,但没有帮助。
我的整个项目都是基于 Dio Library 的。
我该怎么办?
我也遇到了同样的问题。但经过一番研究后,我找到了一个可行的解决方案:
flutter\bin\cache
flutter_tools.stamp
的文件,将其压缩为 zip 文件或任何保留副本的文件,然后删除原始文件。flutter\packages\flutter_tools\lib\src\web
并在编辑器中打开 chrome.dart
文件。'--disable-extension'
--disable-web-security
。快乐编码
如果您看到此内容 '您正在使用不受支持的注释行标志:--disable-web-security。假设您的浏览器上的稳定性和安全性将受到影响'。它只在你的本地环境上起作用,无需担心
对于那些仍然遇到此问题的人,我认为最简单的方法是在基本 URL 之前添加以下 URL:
const String proxyUrl = 'https://cors-anywhere.herokuapp.com/';
const String baseUrl = proxyUrl + "BASE_URL.com";
它适用于任何编程语言,并且适用于调试和发布模式。