This document provides an overview of using Google App Engine as a platform for personal information services and applications. It discusses the programming languages supported by App Engine, including Python, Java, Go, and others. It also outlines some of App Engine's key features like URL fetching, task scheduling, and image processing. The document notes that App Engine's free usage tier is sufficient for most personal uses. It also discusses some libraries and frameworks that can be used with App Engine like Django and Tornado. Finally, it shares some examples of applications that have been built on App Engine.

1. 使用GoogleAppEngine做个人信
息中心
weibo.com/sagasw
twitter.com/sagasw

2. 个人信息服务聚合
● Twitter 客户端
● RSS 聚合
● 获取网页 (urlfetch)
● Cron Jobs
● 个人笔记
● 好玩的玩具
● 了解云计算 (自己订制用的越多，花钱越多)

7. Google AppEngine
编程语言 Go language, Python, Java (JRuby,
Lua, Rails etc.)
免费限额对于个人日常使用，已经足够
常用及有用的特点
○ UrlFetch, Memcache, XMPP, Mail, TaskSchedule, Cron
○ OAuth, Google 账号绑定
○ Image 处理
○ MapReduce, Channel, High Replication Datastore
○ Custom domain
○ 容易使用，容易管理，数据 统计信息强大
○ 容易扩展，可以抵抗
缺点: 没有全文搜索, 新的价格调整, 需要熟悉新的
SQL方式, Python2.5, 不能使用C扩展

8. 使用Django
The App Engine Python environment includes these
versions of Django: 1.2, 1.1, 1.0, and 0.96
Tornado
https://github.com/facebook/tornado/tree/master/demos/appengine
http://www.tornadoweb.org/documentation/wsgi.html?highlight=appengine

9. 用于AppEngine的Python库
BeautifulSoup
Python-Twitter
Python-Readability
... ...
什么样的Python扩展可以用于AppEngine?
● 没有用到 C-Extensions的,
● 没有用到关系型数据库,
● 不需要访问本地资源的,
Search http://pypi.python.org/pypi

10. Lua in Appengine
With Java's help
http://code.google.com/p/aelua/
http://code.google.com/p/jillcode/
http://code.google.com/p/kahlua/
https://github.com/krka/kahlua2
http://sourceforge.net/projects/luaj/

11. from google.appengine.ext import webapp
from google.appengine.ext.webapp.util import run_wsgi_app
application = webapp.WSGIApplication([('/', MainPage),
('/newentry', NewEntry),
('/editentry', EditEntry),
('/deleteentry', DeleteEntry),
],
debug=True)
def main():
run_wsgi_app(application)
if __name__ == '__main__':
main()

12. def administrator(method):
class HomeHandler(BaseHandler):
def get(self):
entries = db.Query(Entry).order('-published').fetch(limit=5)
if not entries:
if not self.current_user:
self.redirect("/compose")
return
self.render("home.html", entries=entries)
... ... ... ...
application = tornado.wsgi.WSGIApplication([
(r"/", HomeHandler),
(r"/archive", ArchiveHandler),
import re
(r"/feed", FeedHandler),
import tornado.web
], **settings)
import tornado.wsgi
import wsgiref.handlers
def main():
from google.appengine.api import users
wsgiref.handlers.CGIHandler().run(application)
from google.appengine.ext import db
if __name__ == "__main__":
class Entry(db.Model):
main()
author = db.UserProperty()
title = db.StringProperty(required=True)
html = db.TextProperty(required=True)
published = db.DateTimeProperty(auto_now_add=True)
updated = db.DateTimeProperty(auto_now=True)
https://raw.github.com/facebook/tornado/master/demos/appengine/blog.
py

13. Using AppEngine in Enterprise Dev?
● 现在还不合适，推荐Amazon EC2
● 作为前端，可以很容易扩展
● 作为练习平台
● 使用于特定的部分的任务
http://code.google.com/appengine/business/
App Engine for Business is no more, but don't worry. Almost all the features you
wanted in App Engine for Business will now be available to all App Engine
developers in an upcoming release. This includes:
● SSL for custom domains
● Support
● Hosted SQL
● Service-level Agreement

14. http://www.google.com/events/io/2011/sandbox.html
Wiki, CMS, MicroBlogging, GameServer, AppServer,
Wedding, Ask-Answer, EBook, SNS Server, Online
Shop, Workflow
can NOT
Video, Audio, big files hosting, High computing, High CPU usage,
image hosting

16. Google AppEngine 价格和用量继续微调
http://www.guao.hk/posts/google-app-
engine-price-changes.html

17. 延后调价时间到11月1日，让开发者有更多时间针对新价格体
系调整自己应用; 增加免费实例时间，从24小时增加到28
小时，即便应用有一些突发请求，也有可能在免费区间里
Livid: 可以有更多时间优化或是为搬走写新代码。个人对
Python 的喜欢和深入研究的决心没有动摇。动摇的是对GAE
的信心，这次决定是完全违背常识的。如打算学 Python web
development，可从Flask，webapp2或Tornado上手。
keakon: 如果只是学习，GAE免费配额还能维持一个1000PV以
下站点。等超过1000时，该学的也都学会了。

18.
● 尽量多使用memcache
● Appengine（免费）+ VPS（每月5美金左右）
● 数据库访问通过webservice访问VPS上DB，对数据进行cache
● 搜索功能使用google或者VPS自建
● 使用VPS上的Nginx建立AppEngine反向代理，访问Appengine
find VPS seller, coupon
http://www.lowendbox.com/
how to install Nginx in VPS
http://www.howtoforge.com/

21. Useful links
http://code.google.com/appengine/
http://googleappengine.blogspot.com/
http://www.v2ex.com/go/gae
http://www.neopythonic.blogspot.com/
http://blog.notdot.net/
http://www.billkatz.com/
http://www.franciscosouza.com/tag/google-app-engine/
http://code.google.com/hosting/search?q=appengine&btn=Search+projects
https://github.com/search?q=AppEngine
http://en.wikipedia.org/wiki/Google_App_Engine
http://highscalability.com/google-architecture
https://groups.google.com/forum/#!forum/google-appengine
http://www.reddit.com/r/AppEngine/

22. Interesting projects
http://code.google.com/p/googleappengine/
http://code.google.com/p/appscale/ (Setup your private GAE)
http://code.google.com/p/app-engine-site-creator/
http://code.google.com/p/google-app-engine-samples/
http://code.google.com/p/fantasm/
https://github.com/metachris/feedmailer
https://github.com/crabasa/Twitter2Mail
http://code.google.com/p/jaikuengine/
http://code.google.com/p/appengine-mapreduce/
http://code.google.com/p/gae-bbs/
http://code.google.com/p/rietveld/
http://code.google.com/p/tipfy/
http://code.google.com/p/kay-framework/
https://github.com/xuming/micolog
https://github.com/livid/picky
https://github.com/livid/v2ex
https://github.com/seven1m/sinatra-appengine-example
mirrorrr-plus

23. Cloud Computing Joke

24. Q & A ??