字幕组成品列表（Beta）
  • 写在前面
  • Android 平台
    • Game On! 游戏开发系列 - 031
      • Pie Noon - 1503060393
      • The Death of Base Game Activity - 1504030543
      • Surviving OpenGL Context Loss - 1504030546
      • WebP for Game Devs - 1504030547
      • Saved Games In-Depth (Part 1) - 1504070556
      • Saved Games In-Depth (Part 2) - 1504030548
      • Smaller Flipbook Textures with CRABBY - 1504030544
      • Google Tag Manager - 1504030545
      • Flatbuffers - 1505050794
      • Achievement Point Pointers - 1505050796
      • Frequency Scaling - 1505050797
      • Meet the Management APIs - 1501140367
      • Y U Ship Broken Games - 1505050795
    • Android 性能优化 - 088
      • Garbage Collection in Android - 1503170425
      • Performance Cost of Memory Leaks - 1503170424
      • Rendering Performance 101 - 1501130351
      • Understanding Overdraw - 1501130352
      • Understanding VSYNC - 1501130353
      • Tool - Profile GPU Rendering - 1501130354
      • Why 60fps? - 1501130355
      • Android UI and the GPU - 1501130356
      • Invalidations, Layouts, and Performance - 1501130357
      • Overdraw, Cliprect, QuickReject - 1501130358
      • Tool - Memory Monitor - 1501130363
      • Battery Performance 101 - 1501130364
      • Understanding Battery Drain on Android - 1501130365
      • Battery Drain and WakeLocks - 1501130366
      • Memory Performance 101 - 1504170661
    • I/O 2014 Android 开发专题 - 089
      • Activity Transitions - 1504020505
      • Building Apps For Android TV - 1504020520
      • Building great Android media experiences - 1504020510
      • Building a quality app from start to finish - 1504020515
      • App Indexing API - 1504020507
      • What's new in WebView - 1504010484
      • Bluetooth Low Energy - 1504010486
      • Building impressive Android media experiences - 1504010493
      • The next Generation of Authentication - 1504020497
      • Don't Alpha That Pixel! - 1504020523
      • NFC + HCE Your phone in an interactive world - 1504020509
      • Demystifying encodes and decodes of WebM - 1504020521
      • Google Cloud Messaging - 1504020524
      • Getting your Game on the Big Screen - 1504020518
      • I hear you like realtime memes - 1504020511
      • Offerize your App - 1504020506
      • Using the Android Job Scheduler - 1504020504
      • From Holo to Material - 1504020526
      • Under the Hood of Android Auto - 1504020501
      • Isolation for Android App Developers - 1504020498
      • Android Work - 1504010496
      • ExoPlayer: Adaptive video streaming on Android - 1504010489
      • Sample rates and resampling: Why can't we all just agree? - 1504010488
      • Drive Android API - 1504010485
    • Android Studio - 004
      • Layout Editor (Ep 3, Android Studio) - 1503290479
      • Introducing Gradle (Ep 2, Android Studio) - 1503170426
    • I/O 2014 Android 分发主题 - 091
      • Introduction to Google Play - 1504030534
      • Google Play: building your user community - 1504030535
      • Optimizing Apps for Education - 1504030536
      • Succeeding in Education Technology - 1504030530
      • Subscriptions Made Easy with Google Play - 1504030531
      • The world is your playground - go global with Google - 1504030533
      • Maximizing discoverability on Google Play - 1504030538
    • Android Auto - 003
      • Introduction to Android Auto - 1504130615
      • Android Auto Messaging - 1504130617
      • Android Auto Audio - 1504130616
    • Android Wear - 006
      • Designing for Android Wear - 1503210448
      • How We Customized Google Apps for Android Wear - 1503210450
      • Fullscreen apps for Android Wear - 1503210445
      • New Notification Features for Android Wear - 1503210446
      • Building Cloud-powered wearable Apps - 1503210449
      • An Introduction to Android Wear - 1503190435
      • Google I/O 2014 - Android Wear: The developer's perspective - 1503210442
      • Devoxx 2014 Interviews: Android Wear - 1503210440
      • DevBytes: Watch Faces for Android Wear - 1503210439
    • Android TV - 005
      • Using the Leanback library - 1504080588
      • Beach Buggy Racing Multiplayer with Nearby Connections (Play Services) - 1503060387
    • Android for Work - 106
      • Android for Work for Developers - 1503060390
      • App Configurations, Testing and Launchers - 1504110590
    • IO Bytes 2014 - Android - 066
      • Chrome Apps on Android and iOS - 1501080014
      • Perf Primer CPU, GPU and your Android game - 1501080017
  • Chrome 平台
    • IO Bytes 2014 - Chrome and Web - 067
      • Using the PageSpeed API - 1505070815
      • Fabulous Forms for the multi-device web - 1505070816
      • Testing multi-screen web pages - 1505070817
      • Responsive images today - 1505070819
      • Web Performance Testing at YouTube - 1505070828
      • Building sites for the multi-device web - 1505070820
      • Deep dive: Google Cloud Messaging for Chrome - 1505070827
  • Google 创业者资源
    • Coffee with a Googler - 012
      • Chat with Allen Huang of AndroidTV - 1503040384
      • Chat with Fred Chung about developer advocacy - 1503070395
      • Google Fit platform with Michelle Haq - 1503210443
      • Android Auto Product Manager Andrew Brenner - 1501120027
      • Chat with Francis Ma about Google Play services - 1501120028
    • Root Access For Startups - 077
      • What we learned building plug-ins for Android, with startup Magnet - 1503230453
      • How to use crowdfunding to your advantage, with startup Hale Devices - 1503280462
      • How to overcome customer objections when selling tech, with startup Guesswork - 1503280458
    • First Things First - 029
      • Getting started with Android: A crash-course in developing for Android - 1504120601
      • How to ask a question: conducting research for your startup - 1504120603
      • MVP Design Hacks: transform your hot idea into a validated prototype - 1504120602
      • Build something people want: Solving real problems - 1504120605
    • How I - 061
      • Use BigQuery to find my most valuable customers - 1504070573
      • Manage beta testing communities using Google Play - 1504070572
      • Use paper wireframing to build native prototypes - 1504070570
      • Used social media and $0 marketing to get 68 million users - 1504070568
      • Prep to fundraise with four questions - 1504070564
      • Validated my idea in 2 days (with no code) - 1504070562
      • Build open platforms on Android - 1504120596
      • Get cheap, automatic analytics for my business using BigQuery - 1504070571
      • Write press releases to get international media coverage - 1504070569
      • Test beta-product features using Google Apps - 1504070563
      • Use URL builder to measure ROI on social media - 1504070561
      • Use events to build DeadSocial's brand - 1504070557
      • Use BigQuery to visualize streaming data - 1503220452
      • Find, screen, and hire developers - 1503120406
      • Drive engagement with social challenges - 1504070558
  • 设计
    • DesignBytes - 017
      • Paper and Ink: The Materials that Matter - 1505050793
  • 云计算
    • DevBytes: Google Cloud Platform - 021
      • Powering the next killer app with the Google Cloud Platform - 1504210672
      • Introduction to Google Cloud Endpoints - 1504210675
      • The Beauty of Scale with Google Cloud Platform - 1504210678
    • Google Cloud Platform - Big Data - 105
      • GDELT & BigQuery: Understand the world - 1502200379
    • Uncategorized - 999
      • Introducing Google Cloud Platform Resources - 1501190370
  • Google 应用开发
    • Launchpad Online - 072
      • The Setup: Creating new apps using Google APIs - 1503190428
      • Listing your files in Google Drive - 1503190429
      • Customizing Google Analytics for your startup - 1503290473
      • The Launchpad Online series - 1503190427
      • Getting started with Google Analytics - 1503290472
      • Accessing Google Maps from a spreadsheet?!? - 1502220381
      • Change the world in 10 lines of code - 1503080398
    • Google Play Services - 054
      • Google Play services 6.1 - 1503290481
      • Google Play Services 7.0 - 1503200437
      • Google Play Services 6.5 - 1501080015
    • 谷歌地图 iOS SDK - 053
      • Maps Live: New Features in the Google Maps Mobile APIs for Android and iOS - 1504300777
    • Google 移动搜索开发 - 055
      • Is your app in the Google index? - 1504120598
      • Get more engaged users with Google Search for Developers - 1503070397
    • DevBytes: Google Cast - 020
      • Google Cast SDK for Android - 1504180666
      • Media Router Framework - Part 1 - Media Router API - 1504180667
      • Overview for Google Cast Receivers - 1504180664
      • Google Cast SDK for iOS - 1504180663
    • Getting Started with the Google Maps SDK for iOS - 035
      • Getting started with the Google Maps SDK for iOS, Part 1 - 1504270757
    • IO Bytes 2014 - Wearables - 070
      • Voice Driven GDK Glassware - 1505280836
    • Route 85 - 078
      • Introducing Route 85 - 1501120022
      • Quick Tip: Don't Default that Switch! - 1501190371
      • OpenInChrome on iOS, Part 1 - 1501120023
      • OpenInChrome on iOS, Part 2 - 1501120024
      • OpenInChrome on iOS, Part 3 - 1501120025
      • OpenInChrome on iOS, Part 4 - 1501120026
    • DevBytes 2014 - 019
      • Web Components - Template - 1505040789
      • Wearable DataLayer API - 1505050792
      • Using srcset for responsive images - 1505050790
      • The picture element for art direction - 1505050791
    • Uncategorized - 999
      • Sun Surveyor brings augmented reality to photographers using Google Maps APIs - 1504200668
      • Snappy travels with the Roads API - 1503060392
      • Easy Maps Apps in Java and Python - 1501140030
  • Google 广告平台
  • Polymer
    • Polycasts - 076
      • The Awesome Power of Auto-Binding Templates -- Polycasts #08 - 1502220382
      • Content Switcheroo with Core-Pages -- Polycasts #09 - 1502200380
      • Core Iconset -- Polycasts #02 - 1505040788
  • Web 平台
    • HTTP 203 - 062
      • Gotchas - 1501140368
      • Font Rendering - 1501080016
    • Web Components - 081
      • DevBytes: Web Components - Overview - 1504250709
  • 宣传视频
    • Uncategorized - 999
      • Google Developers - 1501150369
      • I/O Extended 2014 - Join me - 1502220383
  • Google 各类开发者会议
    • 2014 Chrome 开发者高峰会议 - 009
      • Keynote - Chrome Dev Summit 2014 (Darin Fisher) - 1503120407
      • TLS All the Things! - Security with Performance(Chris Palmer) - 1503140412
      • Let’s build some apps with Polymer!(Rob Dodson) - 1503150415
      • Day One Closing Remarks(Sundar Pichai) - 1503150417
      • Chrome Leadership panel - 1503160422
      • Fundamentals of Mobile Web Development(Matt Gaunt) - 1503150416
    • 2015 游戏开发者大会中 - 039
      • FlatBuffers - 1504150640
      • Games for Google Cast - 1504150637
      • Top 10 Things Android Game Developers Should Know v 3.0 - 1504150643
      • Automate Publishing for Google Play APIs - 1504150639
      • 3 Game Design Mistakes You're Making - 1504150636
      • Android TV - 1504150638
      • How to Go Viral Without Really Trying - 1504150641
    • Devoxx 2014 Interviews - 024
      • What's new in Android 5.0 Lollipop - 1504260740
      • Android Tools - 1504260743
      • BigQuery and user-defined functions - 1504260744
    • IO Bytes 2014 - 065
      • Dart in Google Cloud - 1505070810
      • Big genomic data on Google Cloud Platform - 1505070811
      • Easy International Checkout with Chrome - 1505070802
      • Google developer tools and APIs for iOS - 1503190436
      • Whet your appetite with IO Bytes - 1501080021
    • PlayTime@Shanghai - 095
      • 主题演讲 Chris Yerga - 1504060549
      • 如何成功地开发你的应用 Ellie Powers - 1504060550
      • 在Google上营利 Brahim Elbouchikhi - 1504060551
      • Playtime Shanghai event sizzle reel - 1504070552
    • Project Google I/O 2015 - 098
      • Project Tango Mobile 3D tracking and perception - 1506120857
      • Democratizing Education - 1506120868
      • Improve your Android app’s accessibility - 1506120864
      • Google Cloud Messaging 3.0 - 1506120844
      • Developers connecting the world through Google Play - 1506120862
  • 开源开放技术
    • Compressor Head - 013
      • The Trailer, Season 2 - 1503060385
      • Behind the Scenes - 1503210441
      • Arithmetic Compression (Ep 5, Compressor Head) Google - 1503070394
      • Introducing Compressor Head - 1502120372
      • Episode 1 (Variable Length Codes) - 1502120373
      • Episode 2 (The LZ77 Compression Family) - 1502120374
      • Episode 3 (Markov Chain Compression) - 1502120375
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  1. Google 各类开发者会议
  2. IO Bytes 2014 - 065

Dart in Google Cloud - 1505070810

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视频发布时间

2014年6月25日

视频介绍

Dart's VM is a full featured server, with support for HTTP, SSL, Web sockets, and more. Learn how to build server apps with Dart and deploy (and scale!) to Google's Cloud.

视频推介语

暂无，待补充。

译者信息

翻译

润稿

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原始链接

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1505070810

解说词中文版：

大家好

我是Soren Gjesse 来自Dart团队

通过我的介绍 会让你了解到为什么Dart在构建云应用方面

是一个很棒的语言

Dart是一个崭新的可扩展的web应用开发平台

它可以在浏览器和服务端上运行

有了Dart 在客户端和服务端上

就可以利用同样一种语言进行web应用的搭建

还能更好的利用

Google云计算平台提供的服务

今天 我会展示在Google数据中心

使用GAE（Google App Engine）的代管VM服务

运行一个Dart应用是多么容易

Dart现已加入GAE豪华午餐

GAE可以在你的应用越来越受欢迎的情况下

自动扩展

GAE的代管VM服务综合了GAE的强大

和通用服务器的灵活

你能够同时拥有对计算自由和VM服务的绝对掌控

并还享有GAE的自动管理功能

由于应用运行在虚拟机上

所以可以在上面安装软件

Dart在服务端虚拟机上运行

没有任何限制

甚至是用本地扩展访问一个C语言库

也是可以的

GAE的代管VM服务支持本地开发

你可以在本地测试

当你准备部署的时候

部署过程会确保相同的代码在Google数据中心运行着

开始之前 还需要做一些准备工作

首先得有Google Cloud SDK

其中包括了一个gcloud命令行工具

你还需要最新的Dart SDK和Dart编辑器

在Dart的官网dartlang.org上有很详细的操作教程

Dart上手还是非常简单

创建一个基础的HTTP服务应用只需要几行代码

导入appengine.dart包

启动服务器

然后处理HTTP请求 这和处理Dart的输入输出流的操作非常类似

如果你已经有了一个Dart的服务器应用

把它迁移到GAE上只需要改动几行代码

你可以在本地执行gcloud app run命令运行你的代码

当你满意的时候

执行gcloud app deploy命令可以进行部署

现在这个站点就已经提供了HTTP请求的服务

GAE包里包括调用Google云服务的API

具体有Google云存储 缓存

用户 日志获取相关的API

先看一下Google云存储

Google云存储是一个用来存储无关系型数据的

的无模式数据库

作为一个无模式数据库 可用来存储

拥有已命名属性的实体

为了提供最大的扩展性 我们提供了两种API

调用基础的API

你可以直接以键值对的形式操作数据库

再高级一点 我们增加了一个映射层

这样 实现存储数据更新变的非常简单

只需添加一些简单的描述说明

来指明你的命令是对应

操作数据库中的哪个部分即可

下面我演示一下 存储一个数据更新操作

是多么容易

首先 你需要模拟数据更新的过程

看一下这个Person类

我们想要存储两个属性 name和age

这个类定义了成员变量 继承自Model类

数据在数据库中的映射关系

是在ModelDescription的子类中声明的

请注意 这里定义了在数据库中各数据的数据类型

当然也可以附加其他的属性

比如可以设置非空属性

设置数据有序属性

PersonDesc类编写结束

Person类也就完成了添加描述说明的工作

类的定义也全部完工

现在 向数据库添加数据

就和创建一个实例一样简单了

这里 我们创建了两个实例对象 George和Sarah

然后调用datastore的commit方法

来把这些实例存到数据库里去

这里我们用了Dart的异步编程模型

当提交进行时

已经得到了返回值

如果你熟悉GAE的Python NDB Datastore API的话

就更容易理解了

Dart是开源的

所有的代码在Github上都可以找到

也可以在pub.dartlang.org网站提供的

Dart包中找到

现在我们来体验一下代码共享功能

当你在客户端和服务端都在使用Dart时

你的前后端就可以共享代码

这很有用 因为这些代码只用写一次

比如 你的客户端和服务端

通过基于JSON的接口交换数据

进行关联数据对象 序列化

和反序列化操作的代码在前后端都需要实现

可将相关的操作定义在公共类库里

这样前后端都可调用这些代码

在前后端共享代码有许多好处

比如不需要用不同的语言写

验证逻辑的代码

这一部分在客户端和服务端都会用到

所以写一遍然后共享出去就可以了

如果一个应用在离线时也可以运行

在这种的情况下

原本运行在服务端的大量代码 现在都要运行在客户端上

在前后端使用同一种语言的话

这种情况就可以轻松应对

代码只需要写一遍 就会一直保持同步

这都是些简单的例子

在实际开发过程中会发现更好的解决方案

现在Dart仅仅刚开了一个头

我们会逐步完善GAE对Dart的支持

在API方面

GAE上还有很多有用的API还没有实现

我们会去逐步完善这部分的支持

我们还在做一件重要的事

那就是让更多平台支持通过Dart访问Googl云服务

Google云存储等许多Google其他的服务在大多数平台上都提供支持

Google云计算引擎提供支持

在自己的服务器端

其他云服务提供商 甚至是浏览器上都提供支持

同样的 我们会致力于

让更多的平台都提供对Google云服务的支持

让你的Dart应用实现真正的跨平台

听到这儿

我想你已经迫不及待要在GAE上

开发你的Dart应用了吧

访问dartlang.org可以获取更多信息

快去构建你自己的Dart应用吧

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