/worker.js'); worker.onmessage = function (messageEvent) { console.log(messageEvent) } onmessageerror.../worker.js'); worker.onmessageerror = function (messageEvent) { console.log(messageEvent) } postMessage...示例: // Worker.js importScripts('constant.js'); // 下面就可以获取到 constant.js 中的所有变量了 // constant.js // 可以在.../shareWorker.js'); sharedWorker.port.onmessage = function (messageEvent) { console.log(messageEvent...let count = 666; port.onmessage = (messageEvent) => { const { type, payload } = messageEvent.data
跨文档通信(cross-document messaging)、worker通信(cross-worker messaging)、通道通信(channel messaging) MessageEvent...消息事件 MessageEvent() 用于: Cross-document messaging (参见 Window.postMessage() 和 Window.onmessage)....otherWindow.postMessage(message, targetOrigin, [transfer]) window.addEventListener("message", (messageEvent...① worker.addEventListener('message', (msgEvent) => {}) // ② 主页面 const worker = new Worker('worker.js...参考链接 https://developer.mozilla.org/zh-CN/docs/Web/API/MessageEvent https://www.zhangxinxu.com/wordpress
实现了一个精简版的Web聊天系统,前端采用 HTML+JS,后端用Go实现。...} switch (event.type) { case "new_message": // Format payload const messageEvent...= Object.assign(new NewMessageEvent, event.payload); appendChatMessage(messageEvent);...function appendChatMessage(messageEvent) { var date = new Date(messageEvent.sent); // format...message const formattedMsg = `${date.toLocaleString()}: ${messageEvent.message}`; // Append Message
在js后台部分可以使用event.setParam('attributeName',attributeValue)方式对预装载的参数赋值。...触发事件(Fire Event):触发事件需要写在controller.js中,这里是MessageEventComponentController.js 当controller/helper js ...handlerInit : function(component, event, helper) { console.log('execute init'); var messageEvent...= component.getEvent('componentEvent'); messageEvent.setParam('message','testAfterUpdate');...messageEvent.fire(); }, handlerMessageChange : function(component,event,helper) {
所以,当一些低优先级但是耗时的任务 (日志处理) 正在执行时,一些高优先级的任务 (业务相关) 就只能等着,可能导致 UI 交互不流畅,浏览器出现卡顿的情况,对于 CPU 来说,JS 单线程的带来的不便就更加明显了...(ps:这里并不是说 JS 本身支持了多线程的能力,只是浏览器作为宿主环境提供了 JS 一个多线程运行的环境) W3C 定义:A web worker is a JavaScript that runs...WorkerReportType.ReadEventTblStart, data: count }); // 主线程监听来自 Worker 的消息 worker.onmessage = (event: MessageEvent...break; case ... } } Worker 线程 // Worker 监听来自主线程的消息 self.onmessage = (event: MessageEvent) => {...也就是说,如果我们传输的是 JS 对象,需先将其转换为 ArrayBuffer,否则会报错。
com.facebook.nifty.core.NiftyDispatcher的messageReceived方法实现代码: public void messageReceived(ChannelHandlerContext ctx, MessageEvent...ThriftXHRDecoder实现如下: import org.jboss.netty.channel.ChannelHandlerContext; import org.jboss.netty.channel.MessageEvent...public ThriftXHRDecoder() { } @Override public void messageReceived(ChannelHandlerContext ctx, MessageEvent...SimpleChannelDownstreamHandler { @Override public void writeRequested(ChannelHandlerContext ctx, MessageEvent...) { Throwables.throwIfUnchecked(e); throw new RuntimeException(e); } } } 修改完毕后再执行test_js.html
messageEvent){ showContentTv.setText(messageEvent.getMessage()); } 上面代码,订阅的这个方法将在主线程中执行。...下面仍以上一篇博客的例子介绍,当把订阅方法改为如下时: @Subscribe() public void showContent(MessageEvent messageEvent){...messageEvent = new MessageEvent(); messageEvent.setMessage("Hello World From Network");...messageEvent=new MessageEvent(); messageEvent.setMessage("Hello World From Network")...messageEvent=new MessageEvent(); messageEvent.setMessage("Hello World From Network")
@Subscribe(threadMode = ThreadMode.PostThread) public void XXX(MessageEvent messageEvent) { ... }...类 public class MessageEvent { private String message; public MessageEvent(String message) {...messageEvent) { ...... } (3)发送粘性事件 EventBus.getDefault().postSticky(new MessageEvent("message"...messageEvent){ Log.d("POSTING",messageEvent.getMessage()); } @Subscribe(threadMode...public void showMessageASYNCEvent(MessageEvent messageEvent){ Log.d("ASYNC",messageEvent.getMessage
(params object[] args); private static readonly Dictionary msgDic = new...">订阅事件 public static void Subscribe(string msgKey, MessageEvent messageEvent)...{ if (msgDic.ContainsKey(msgKey)) { msgDic[msgKey] += messageEvent...; } else { msgDic[msgKey] = messageEvent;...">订阅事件 public static void Unsubscribe(string msgKey, MessageEvent messageEvent)
worker的定义: interface Worker extends EventTarget, AbstractWorker { onmessage: ((this: Worker, ev: MessageEvent...) => any) | null; onmessageerror: ((this: Worker, ev: MessageEvent) => any) | null; postMessage...= document.querySelector('.result'); if (window.Worker) { const myWorker = new Worker("worker.js...'); /* imports just "foo.js" */ importScripts('foo.js', 'bar.js'); /* imports two...scripts */ importScripts('//example.com/hello.js'); /* You can import scripts from other origins */
unregister(MainActivity.this); } @Subscribe(threadMode = ThreadMode.MAIN) public void onMoonEvent(MessageEvent...tv_a.setText(message.getMessage()); } @Subscribe(sticky = true) public void onMoonEvents(MessageEvent...@Override public void onClick(View view) { EventBus.getDefault().postSticky(new MessageEvent...; finish(); } }); } } MessageEvent(事件类) public class MessageEvent { private String...message; public MessageEvent(String message) { this.message = message; } public MessageEvent
start(); } 使用EventBus的情况 EventBus的基本使用包含三个步骤: 定义事件 例子中下载内容就是一个String类型的字符串,可以简单定义: public class MessageEvent...Activity A是事件的消费者,在其中声明一个方法如下: @Subscribe(threadMode = ThreadMode.MAIN) public void showContent(MessageEvent...messageEvent){ showContentTv.setText(messageEvent.getMessage()); } 另外,还需要将Subscriber注册到EventBus...messageEvent=new MessageEvent(); messageEvent.setMessage("Hello World From Network")...; EventBus.getDefault().post(messageEvent); finish(); }
注册/取消订阅 发送事件 添加依赖 compile 'org.greenrobot:eventbus:3.0.0' 定义事件 这里的事件是一个任意的POJO 没有任何要求 public class MessageEvent...{ public final String message; public MessageEvent(String message) { this.message...订阅 准备订阅者 使用注解 @Subscribe ,在3.0中对方法名称没有任何要求 当发送事件时EventBus会调用方法 // This method will be called when a MessageEvent...// Called in the same thread (default) @Subscribe public void onEvent(MessageEvent event){ // Process...stickyEvent = EventBus.getDefault().getStickyEvent(MessageEvent.class); // Better check that an event
本篇文章将详细介绍如何在 Nest.js 应用中使用 Server-Sent Events (SSE)。什么是 Server-Sent Events?...装饰器在需要消息推送的 Controller 方法中使用 @Sse 装饰器import { Sse } from '@nestjs/common';@Sse('sse/event')sse(): Observable<MessageEvent...heartbeatTimeout: 60 * 60 * 1000, // 这是自定义配置请求超时时间 默认是45000ms});// 接收消息eventSource.onmessage = ({ data }:MessageEvent...组件卸载前关闭连接 eventSource.close();});效果演示同时登陆两个用户,其中一个发布消息时,服务器会向所有客户端推送消息:浏览器查看接口接收消息:总结关注我,我们一起领略 Nest.js
测试一下"); } } public class EventBusExample { public static void main(String[] args) { MessageEvent...messageEvent =new MessageEvent(1,"测试发布消息"); EventBus eventBus = new EventBus(); eventBus.register...(new EventListener()); // 注册 eventBus.post(messageEvent); //发送消息 } } /** * 其实这个类就是一个Bean...类,里面定义用来传输的数据的类型 */ @Data public class MessageEvent { private int type; private String message...; public MessageEvent(int type, String message) { this.type = type; this.message
示例:作为 EventEmitter 事件订阅发布使用,实现脚本间通信 /* one.js */ export default function (port) { port.onmessage/port.postMessage...} /* two.js */ export default function (port) { port.onmessage/port.postMessage } /* index.js */ import...one from 'one.js' import two from 'two.js' const { port1, port2 } = new MessageChannel() one(port1)... { return new Promise((resolve) => { ep.addEventListener("message", function l(ev: MessageEvent...obj: any, ep: Endpoint = self as any) { // ① ep.addEventListener("message", function callback(ev: MessageEvent
基本用法 引入Otto dependencies { compile 'com.squareup:otto:1.3.8' } 定义事件: public class MessageEvent { /*...Additional fields if needed */ } 订阅和取消订阅 bus.register(this); bus.unregister(this); 发布: bus.post(new MessageEvent...,并且方法的用 public 修饰的.方法名可以随意取,重点是参数,它是根据你的参数进行判断来自于哪个发送的事件 @Subscribe public void showEvent(MessageEvent...("非著名程序员")); finish(); } }); } @Produce public MessageEvent...produceMessageEvent() { return new MessageEvent("非著名程序员"); } // @Override // protected
delegate void MessageEventHandler(object sender, MyEventArgs e); public event MessageEventHandler MessageEvent...; public void OnMessage(MyEventArgs e) { if (this.MessageEvent !...= null) MessageEvent(this, e); } //要锁的变量,通过它可以看出2种锁在不同情况下的效果 private int num...button1_Click(object sender, EventArgs e) { LockTest test = new LockTest("LockTest 1"); test.MessageEvent...button2_Click(object sender, EventArgs e) { LockTest test = new LockTest("LockTest 1"); test.MessageEvent
订阅者 发布者就是 发送事件 订阅者 就是接收事件 gradle compile ‘org.greenrobot:eventbus:3.0.0’ 1.定义事件 public static class MessageEvent...// 定义事件 这个就是你要传送的数据实体类 2.准备订阅者 @Subscribe(threadMode = ThreadMode.MAIN) public void onMessageEvent(MessageEvent...) { super.onStop(); EventBus.getDefault().unregister(this); } 3.发送事件 EventBus.getDefault().post(new MessageEvent
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