Google App Engine Developer - Day1

GAE Developer - Day1Simon @ MiCloud2014Q1

● https://developers.google.com/eclipse/docs/getting_started?hl=zh-tw

Install GAE Eclipse Plugin

Install GAE Eclipse Plugin ● Eclipse 4.3 (Kepler)

○ https://dl.google.com/eclipse/plugin/4.3● Eclipse 3.8/4.2 (Juno)

○ https://dl.google.com/eclipse/plugin/4.2● Eclipse 3.7 (Indigo)

○ https://dl.google.com/eclipse/plugin/3.7

Install GAE Eclipse Plugin

First GAE App

● Create GAE web project● Review project & Edit Servlet● Deploy to GAE

Create GAE Web Project

Going to Project Detail

Java source code

Web source code

GAE setting

Servlet setting

Local Develop Server

Local Server Supports● Jetty Servlet container● Admin page● Datastore - HDR● MySQL connect

Local Admin Console

Deploy GAE to Cloud

Getting Start….

GAE預設值...

● Stateless - no session enabled● Without app stat page● Have JSP standard UserPrinciple object for

authentication● Cannot DB connection● JSTL support

建立簡單的UI - https://jetstrap.com

整合到專案

Enable Session...

基本設定 - Enable Session

Enable App State...

App Stats Servlet<!-- direct /appstats requests to built-in appstats tool --><servlet> <servlet-name>appstats</servlet-name> <servlet-class>com.google.appengine.tools.appstats.AppstatsServlet</servlet-class></servlet><servlet-mapping> <servlet-name>appstats</servlet-name> <url-pattern>/appstats/*</url-pattern></servlet-mapping><!-- appstats to record statistics/metrics for each request --><filter> <filter-name>appstats</filter-name> <filter-class>com.google.appengine.tools.appstats.AppstatsFilter</filter-class> </filter><filter-mapping> <filter-name>appstats</filter-name> <url-pattern>/*</url-pattern></filter-mapping>

http://localhost:8888/appstats/stats

Use User Service….

User Service

CallbackPage

ResultPage

extends: AbstractAppEngineAuthorizationCodeServlet

extends: AbstractAppEngineAuthorizationCodeCallbackServlet

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<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<%@ page import="java.util.List" %>

<%@ page import="com.google.appengine.api.users.User" %>

<%@ page import="com.google.appengine.api.users.UserService" %>

<%@ page import="com.google.appengine.api.users.UserServiceFactory" %>

<%

UserService userService = UserServiceFactory.getUserService();

User user = userService.getCurrentUser();

if (user != null) {

pageContext.setAttribute("user", user);

%>

<a href="<%= userService.createLogoutURL(request.getRequestURI()) %>">sign out</a>.)</p>

<a href="<%= userService.createLoginURL(request.getRequestURI()) %>">Sign in</a>

整合User Service

Others...

● 預設Datastore: com.google.api.client.extensions.appengine.auth.oauth2.AppEngineCredentialStore

User service default store

取得App Engine Id

import com.google.apphosting.api.ApiProxy;ApiProxy.getCurrentEnvironment().getAppId();

Team Work - Invite Cooperate User

Q&AEND