client-side-rendering 相关问题

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AWS/S3/boto3：无法使用 presigned_url 将文件上传到存储桶

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“client”未定义，client.completions.create

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我的应用程序中有以下 AuthProvider：从 'oidc-react' 导入 { AuthProvider, AuthProviderProps }; const AuthWrapper = ({ 孩子 }: { 孩子: React.ReactNode }) => { 常量调度...

onSuccess 回调是否已从查询（tRPC）中删除？

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我们正在开始使用 Kafka，在阅读本文时 - https://docs.confluence.io/kafka-clients/java/current/overview.html - 它似乎暗示客户端是单线程的。 * 由于这个...

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在nest.js中配置sftp

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为什么我的存储桶名称位于 R2 对象的键中？

我在无服务器函数中使用 Cloudflare R2 和 @aws-sdk/client-s3。在这里，我尝试将一个对象添加到我的存储桶（'my-bucket'）；从“@aws-sdk/

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Dockerfile 无法使用 Prisma 访问 docker-compose postgresql 数据库 url

我真的不知道为什么，但我的 Dockerfile 映像无法访问使用 docker compose 运行的 postgres 数据库 // prisma.schema 生成器客户端{ 提供者=“prisma-client-js” } 数据源...

APN PHP 代码给出警告：stream_socket_client() [function.stream-socket-client]: 无法连接到 ssl://gateway.sandbox.push.apple.com:2195

我正在尝试使用 PHP 代码实现 Apple 推送通知。这是我的代码： $deviceToken = '我的设备令牌'; $密码=''； $message = '我的第一个推送通知！'; //////////////////...

Laravel webhook 客户端在 Whatsapp Webhook url 上出现错误 405

我尝试在whatsapp云中使用laravel进行webhook，但它显示此错误脸书错误并在 ngrok 中显示此错误恩格罗克错误我使用 https://github.com/spatie/laravel-webhook-client

在 Node.js 中使用谷歌地图距离矩阵 api 时出现错误：“o.map 不是函数”

我正在使用 Google Maps API 节点客户端并调用 distancematrix 函数，但收到一条错误消息，提示 o.map 不是函数。 const {Client} = require("@googlemaps/google-maps-

Gradle：如何在多个依赖项中拥有相同传递依赖项的单独版本

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我在使用 Boto3 连接到 STS 假定角色时遇到访问被拒绝错误

我可以使用 AWS 控制台手动担任角色，但在使用 boto3 担任角色时出现访问被拒绝错误 | sts_client = boto3.client('sts') 假定角色 = sts_client.assume_role( 罗尔...

如何使用 JS 延迟加载新的 Google Adsense 代码

谷歌已取代 <question vote="1"> <p>谷歌已取代 <br/></p> <p><pre><code><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js</script></code></pre> <br/></p> <p>与<br/></p> <p><pre><code><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-1234567890123456" crossorigin="anonymous"</script></code></pre> <br/></p> <p><strong>参考</strong>：<a href="https://support.google.com/adsense/answer/10627874" rel="nofollow noreferrer">Google Adsense 公告</a><br/></p> <p><strong>旧的 Adsense 代码就像：</strong></p> <pre><code><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-XXXXXXXXXXXXXXXX" crossorigin="anonymous"></script> <ins class="adsbygoogle" style="display:inline-block;width:350px;height:90px" data-ad-client="ca-pub-XXXXXXXXXXXXXXXX" data-ad-slot="XXXXXXXXXX"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </code></pre> <p><strong>新的 Adsense 代码如下：</strong></p> <pre><code><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-XXXXXXXXXXXXXXXX" crossorigin="anonymous"></script> <ins class="adsbygoogle" style="display:inline-block;width:350px;height:90px" data-ad-client="ca-pub-XXXXXXXXXXXXXXXX" data-ad-slot="XXXXXXXXXX"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </code></pre> <p><strong>页面加载完成后加载广告的旧 JS 代码是：</strong></p> <pre><code> <script type="text/javascript"> function downloadJSAtOnload() { var element = document.createElement("script"); element.src = "https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"; document.body.appendChild(element); } if (window.addEventListener) window.addEventListener("load", downloadJSAtOnload, false); else if (window.attachEvent) window.attachEvent("onload", downloadJSAtOnload); else window.onload = downloadJSAtOnload; </script> </code></pre> <p>由于在新广告代码的脚本标签中添加了<pre><code>?client=ca-pub-xxxxxx" crossorigin="anonymous"</code></pre>，那么现在加载广告的新JS代码是什么？</p> </question> <answer tick="true" vote="1"> <p>嗯，这并不是真正的延迟加载，这是延迟加载，不推荐，但你就可以了</p> <pre><code><script> function downloadJSAtOnload() { var element = document.createElement("script"); element.src = "https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-XXXXXXXXXXXXXXXX"; element.async = true; element.setAttribute('crossorigin', 'anonymous'); document.body.appendChild(element); } if (window.addEventListener) window.addEventListener("load", downloadJSAtOnload, false); else if (window.attachEvent) window.attachEvent("onload", downloadJSAtOnload); else window.onload = downloadJSAtOnload; </script> </code></pre> <p>如果您正在寻找延迟加载 AdSense，请查看 <a href="https://www.guest.blog/post/12068/lazy-loading-adsense-ads/" rel="nofollow noreferrer">延迟加载 Adsense</a></p> </answer> <answer tick="false" vote="0"> <blockquote> <h2>引用的标题##<script async</h2> <p>src="https://pagead2.googlesyndicate.com/pagead/js/adsbygoogle.js?client=ca-pub-1049121221402917" 跨桥=“匿名”></p> </blockquote> </answer> </body></html>

使用 Traefik 对 Google 全球 HTTPS 负载均衡器上的高延迟峰值进行故障排除

使用 JMeter 针对 Google 全球 HTTPS 负载均衡器获取 2.5MB JAR 文件 (/client/signed-jars/lib/bc-prov.jar) 时，我遇到了严重的延迟峰值。 250 个相同的 GET

AWS SageMaker 端点：调用 boto3.client("s3") 时出现超出最大递归深度错误

当我尝试在已部署的 SageMaker 端点（对于 TensorFlow 模型）上调用 .predict() 时，遇到最大递归深度超出错误。我已将日志语句放入推理脚本中，

在React中不显示服务器上的图像

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在安装新版本操作之前无法创建'./usr/bin/ssh'的备份链接

最近我的实验室ubuntu服务器遇到了一个麻烦的问题。我想重新安装 openssh 服务器，所以我运行命令 sudo apt-get 安装 openssh-client sudo apt-get 安装 openssh-server

嵌套 useFetch 导致 Nuxt 3 中的 Hydration 节点不匹配

在 Nuxt 3 页面内，我通过从 pinia 存储调用操作来获取帖子数据： {{ 发布数据 }} {{ 帖子内容... 在 Nuxt 3 页面内，我通过从 pinia 商店调用操作来获取帖子数据： <template> <div v-if="postData && postContent"> {{ postData }} {{ postContent }} </div> </template> <script setup> const config = useRuntimeConfig() const route = useRoute() const slug = route.params.slug const url = config.public.wpApiUrl const contentStore = useContentStore() await contentStore.fetchPostData({ url, slug }) const postData = contentStore.postData const postContent = contentStore.postContent </script> 那是我的商店： import { defineStore } from 'pinia' export const useContentStore = defineStore('content',{ state: () => ({ postData: null, postContent: null }), actions: { async fetchPostData({ url, slug }) { try { const { data: postData, error } = await useFetch(`${url}/wp/v2/posts`, { query: { slug: slug }, transform(data) { return data.map((post) => ({ id: post.id, title: post.title.rendered, content: post.content.rendered, excerpt: post.excerpt.rendered, date: post.date, slug: post.slug, })); } }) this.postData = postData.value; if (postData && postData.value && postData.value.length && postData.value[0].id) { const {data: postContent} = await useFetch(`${url}/rl/v1/get?id=${postData.value[0].id}`, { method: 'POST', }); this.postContent = postContent.value; } } catch (error) { console.error('Error fetching post data:', error) } } } }); 浏览器中的输出正常，但我在浏览器控制台中收到以下错误： entry.js:54 [Vue warn]: Hydration node mismatch: - rendered on server:  - expected on client: div at <[slug] onVnodeUnmounted=fn<onVnodeUnmounted> ref=Ref< undefined > > at <Anonymous key="/news/hello-world()" vnode= {__v_isVNode: true, __v_skip: true, type: {…}, props: {…}, key: null, …} route= {fullPath: '/news/hello-world', hash: '', query: {…}, name: 'news-slug', path: '/news/hello-world', …} ... > at <RouterView name=undefined route=undefined > at <NuxtPage> at <Default ref=Ref< undefined > > at <LayoutLoader key="default" layoutProps= {ref: RefImpl} name="default" > at <NuxtLayoutProvider layoutProps= {ref: RefImpl} key="default" name="default" ... > at <NuxtLayout> at <App key=3 > at <NuxtRoot> 如何解决这个问题？我尝试在 onMounted 中获取帖子数据，但在这种情况下 postData 和 postContent 保持为空 onMounted(async () => { await contentStore.fetchPostData({ url, slug }) }) 您可以使用 ClientOnly 组件来消除该警告。请参阅文档了解更多信息。该组件仅在客户端渲染其插槽。

错误：在此 BlocBuilder<InternetBloc> Widget<InternetBloc, InternetState> 上方找不到正确的提供程序

我在尝试将 flutter_bloc 集成到 flutter 项目中时遇到错误。错误：在此 BlocBuilder 上方找不到正确的 Provider 我在尝试将 flutter_bloc 集成到 flutter 项目中时遇到错误。错误：在此 BlocBuilder Widget 上方找不到正确的提供者这是我正在使用的代码示例。 internet_state.dart abstract class InternetState{} class InitialInternetState extends InternetState{} class LostConnectionInternetState extends InternetState{} class GainConnectionInternetState extends InternetState{} internet_event.dart abstract class InternetEvent{} class LostConnectionEvent extends InternetEvent{} class GainConnectionEvent extends InternetEvent{} internet_bloc.dart class InternetBloc extends Bloc<InternetEvent, InternetState>{ final Connectivity _connectivity = Connectivity(); StreamSubscription? streamSubscription; InternetBloc() : super(InitialInternetState()){ on<GainConnectionEvent>((event, emit) => emit(GainConnectionInternetState())); on<LostConnectionEvent>((event, emit) => emit(LostConnectionInternetState())); _connectivity.onConnectivityChanged.listen((event) { if(event == ConnectivityResult.mobile || event == ConnectivityResult.wifi){ add(GainConnectionEvent()); } else { add(LostConnectionEvent()); } }); } @override Future<void> close() { streamSubscription?.cancel(); return super.close(); } } main.dart class MyApp extends StatelessWidget { const MyApp({super.key}); @override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter Demo', theme: ThemeData( colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple), useMaterial3: true, ), home: const MyHomePage(title: 'Flutter Demo Home Page'), ); } } class MyHomePage extends StatelessWidget { const MyHomePage({super.key, required this.title}); final String title; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar(title: Text(title),), body: SafeArea( child: Center(child: BlocBuilder<InternetBloc, InternetState>( builder: (context, state) { return const Text("hello"); }, )), ),); } } 我明白了。 ======== 小部件库捕获异常====================================== =================== 构建 MediaQuery(MediaQueryData(size: Size(392.7, 783.3), devicePixelRatio: 2.8, textScaler: noscaling, platformBrightness: Brightness.light, padding: EdgeInsets.zero, viewPadding: EdgeInsets.zero, viewInsets: EdgeInsets 时抛出以下 ProviderNotFoundException。零，systemGestureInsets：EdgeInsets（29.8，24.0，29.8，8.0），alwaysUse24HourFormat：假，accessibleNavigation：假，highContrast：假，onOffSwitchLabels：假，disableAnimations：假，invertColors：假，boldText：假，navigationMode：传统，gestureSettings：DeviceGestureSettings （touchSlop：8.0），显示功能：[]））：错误：无法在此 BlocBuilder Widget 之上找到正确的提供程序发生这种情况是因为您使用了不包含提供程序的 BuildContext 你的选择。有以下几种常见场景：您在main.dart中添加了一个新的提供程序并执行了热重载。要修复此问题，请执行热重启。您尝试阅读的提供商处于不同的路线。提供商具有“范围”。因此，如果您在路线中插入提供者，那么其他路线将无法访问该提供商。您使用了 BuildContext，它是您尝试读取的提供程序的祖先。确保 BlocBuilder 位于您的 MultiProvider/Provider 下。当您创建提供程序并尝试立即读取它时，通常会发生这种情况。例如，代替： Widget build(BuildContext context) { return Provider<Example>( create: (_) => Example(), // Will throw a ProviderNotFoundError, because `context` is associated // to the widget that is the parent of `Provider<Example>` child: Text(context.watch<Example>().toString()), ); } 考虑使用builder，如下所示： Widget build(BuildContext context) { return Provider<Example>( create: (_) => Example(), // we use `builder` to obtain a new `BuildContext` that has access to the provider builder: (context, child) { // No longer throws return Text(context.watch<Example>().toString()); } ); } 如果这些解决方案都不起作用，请考虑在 StackOverflow 上寻求帮助： https://stackoverflow.com/questions/tagged/flutter The relevant error-causing widget was: SafeArea SafeArea:file:///Users/../Projects/flutterTest/bloc_test/lib/main.dart:37:13 When the exception was thrown, this was the stack: #0 Provider._inheritedElementOf (package:provider/src/provider.dart:343:7) #1 Provider.of (package:provider/src/provider.dart:293:30) #2 ReadContext.read (package:provider/src/provider.dart:649:21) #3 _BlocBuilderBaseState.initState (package:flutter_bloc/src/bloc_builder.dart:130:36) #4 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:5602:55) #5 ComponentElement.mount (package:flutter/src/widgets/framework.dart:5447:5) ... Normal element mounting (4 frames) #9 Element.inflateWidget (package:flutter/src/widgets/framework.dart:4326:16) #10 Element.updateChild (package:flutter/src/widgets/framework.dart:3831:20) #11 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #12 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #13 ProxyElement.update (package:flutter/src/widgets/framework.dart:5800:5) #14 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #15 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6743:14) #16 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #17 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #18 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #19 StatelessElement.update (package:flutter/src/widgets/framework.dart:5547:5) #20 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #21 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #22 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #23 StatelessElement.update (package:flutter/src/widgets/framework.dart:5547:5) #24 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #25 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #26 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #27 StatelessElement.update (package:flutter/src/widgets/framework.dart:5547:5) #28 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #29 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #30 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #31 ProxyElement.update (package:flutter/src/widgets/framework.dart:5800:5) #32 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #33 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #34 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #35 ProxyElement.update (package:flutter/src/widgets/framework.dart:5800:5) #36 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #37 Element.updateChildren (package:flutter/src/widgets/framework.dart:3964:32) #38 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6896:17) #39 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #40 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #41 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #42 ProxyElement.update (package:flutter/src/widgets/framework.dart:5800:5) #43 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #44 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #45 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5634:11) #46 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #47 StatefulElement.update (package:flutter/src/widgets/framework.dart:5657:5) #48 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #49 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #50 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5634:11) #51 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #52 StatefulElement.update (package:flutter/src/widgets/framework.dart:5657:5) #53 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #54 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #55 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #56 ProxyElement.update (package:flutter/src/widgets/framework.dart:5800:5) #57 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #58 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #59 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5634:11) #60 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #61 StatefulElement.update (package:flutter/src/widgets/framework.dart:5657:5) #62 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #63 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6743:14) #64 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #65 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #66 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #67 ProxyElement.update (package:flutter/src/widgets/framework.dart:5800:5) #68 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #69 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6743:14) #70 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #71 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #72 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5634:11) #73 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #74 StatefulElement.update (package:flutter/src/widgets/framework.dart:5657:5) #75 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #76 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #77 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5634:11) #78 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #79 StatefulElement.update (package:flutter/src/widgets/framework.dart:5657:5) #80 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #81 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #82 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #83 ProxyElement.update (package:flutter/src/widgets/framework.dart:5800:5) #84 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #85 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #86 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #87 ProxyElement.update (package:flutter/src/widgets/framework.dart:5800:5) #88 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #89 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #90 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #91 ProxyElement.update (package:flutter/src/widgets/framework.dart:5800:5) #92 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #93 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #94 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5634:11) #95 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #96 StatefulElement.update (package:flutter/src/widgets/framework.dart:5657:5) #97 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #98 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #99 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #100 ProxyElement.update (package:flutter/src/widgets/framework.dart:5800:5) #101 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #102 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #103 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5634:11) #104 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #105 StatefulElement.update (package:flutter/src/widgets/framework.dart:5657:5) #106 Element.updateChild (package:flutter/src/widgets/framework.dart:3815:15) #107 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5496:16) #108 Element.rebuild (package:flutter/src/widgets/framework.dart:5187:7) #109 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2895:19) #110 WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:984:21) #111 RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:457:5) #112 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1325:15) #113 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1255:9) #114 SchedulerBinding.scheduleWarmUpFrame.<anonymous closure> (package:flutter/src/scheduler/binding.dart:978:7) #118 _RawReceivePort._handleMessage (dart:isolate-patch/isolate_patch.dart:184:12) (elided 3 frames from class _Timer and dart:async-patch) ==================================================================================================== 我不想使用像 MultiProvider 这样的全局提供程序。您应该在某处创建 InternetBloc 并提供它。 MultiProvider 本身并不是全局的，它只是多个。更多信息在这里：https://bloclibrary.dev/#/flutterbloccoreconcepts?id=blocprovider 所以，如果您不想使用全局提供程序，它将看起来像这样： class MyHomePage extends StatelessWidget { const MyHomePage({super.key, required this.title}); final String title; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text(title), ), body: SafeArea( child: Center( child: BlocProvider<InternetBloc>( create: ( context) => InternetBloc(), child: BlocBuilder<InternetBloc, InternetState>( builder: (context, state) { return const Text("hello"); }, ), ), ), ), ); } } 要使用 BlocBuilder，您需要在 Widget 树中放置一个 BlocProvider。最佳实践是将其放置得尽可能深。在您的情况下，只需将 BlocProvider 放在 BlocBuilder 之上。此外 MultiProvider / MultiBlocProvider 不是全局 Provider。它只是一个提供多个 Provider/BlocProvider 的便捷小部件。 class MyHomePage extends StatelessWidget { const MyHomePage({super.key, required this.title}); final String title; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text(title), ), body: SafeArea( child: Center( // Now everything below that can access the InternetBloc child: BlocProvider<InternetBloc>( create: (_) => InternetBloc(), child: BlocBuilder<InternetBloc, InternetState>( builder: (context, state) { return const Text("hello"); }, ), ), ), ), ); } }

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