aplicações html5 com java ee 7 e netbeans
DESCRIPTION
Códigos usados na demonstração aqui: https://github.com/glassfish/javaee7-examplesTRANSCRIPT
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Aplicações HTML5 com Java EE 7 e NetBeans
Bruno BorgesOracle Product ManagerJava Evangelist@brunoborges
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Bruno Borges
Oracle Product Manager / Evangelist
Desenvolvedor, Gamer
Entusiasta em Java Embedded e JavaFX
Twitter: @brunoborges
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Agenda
Do Java EE 6 ao Java EE 7
Construindo aplicações HTML5– WebSockets 1.0
– JAX-RS 2.0
– JavaServer Faces 2.2
– JSON API 1.0
NetBeans e o suporte ao HTML5
Comunidade, Participação, Futuro
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Plataforma Java EE 610 Dezembro, 2009
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Java EE 6 – Estatísticas
● 50+ Milhões de Downloads de Componentes Java EE 6● #1 Escolha para Desenvolvedores Enterprise● #1 Plataforma de Desenvolvimento de Aplicações● Implementação mais Rápida de uma versão do Java EE
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Top Ten Features no Java EE 6
1. Empacotar EJB dentro de um WAR2. Injeção de Dependência Type-safe3. Deployment descriptors opcionais (web.xml, faces-config.xml)
4. JSF padronizado com Facelets5. Uma única classe por EJB6. Extensões de Servlet e CDI7. CDI Events8. EJBContainer API9. Agendamento estilo Cron com @Schedule10. Web Profile
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Java EE 7está pronto!
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IntroducingJava EE 7 Live Webcast
http://bit.ly/javaee7launch
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Java EE 7 Escopo
● Produtividade de Desenvolvimento– Menos código Boilerplate
– Funcionalidades mais ricas
– Mais convenções e defaults● Suporte a HTML5
– WebSocket
– JSON
– HTML5 Forms
JSR 342
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Java EE 7
EJB 3.2
Servlet 3.1
CDIExtensio
ns
Batch 1.0
Web Fragment
s
JCA 1.7JMS 2.0JPA 2.1
Managed Beans 1.0
Concurrency 1.0Common
Annotations 1.1Interceptors1.2, JTA 1.2✔
CDI 1.1
JSF 2.2,JSP 2.3,EL 3.0
JAX-RS 2.0,JAX-WS 2.2 JSON 1.0
WebSocket 1.0
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Java EE 7 Web Profile
Web Profile updated to include– JAX-RS
– WebSocket
– JSON-P
– EJB 3.2 Lite
Outras APIs
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Construindo aplicações HTML5
WebSocket 1.0 JAX-RS 2.0 JavaServer Faces 2.2 JSON-P API
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HTTP vs WebSockets
Protocolo HTTP é half-duplex Gambiarras
– Polling
– Long polling
– Streaming
WebSocket resolve o problemade uma vez por todas
– Full-duplex
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WebSockets Handshake
Cliente solicita um UPGRADE Server confirma (Servlet 3.1) Cliente recebe o OK Inicia a sessão WebSocket
http://farata.github.io/slidedecks/state_of_websocket/slides.html#13.4
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Java API for WebSockets 1.0
API para definir WebSockets, tanto Client como Server– Annotation-driven (@ServerEndpoint)
– Interface-driven (Endpoint)
– Client (@ClientEndpoint)
SPI para data frames– Negociação handshake na abertura do WebSocket
Integração com o Java EE Web container
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Java API for WebSockets 1.0
import javax.websocket.*;import javax.websocket.server.*;
@ServerEndpoint(“/hello”)public class HelloBean {
@OnMessage public String sayHello(String name) { return “Hello “ + name; }}
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Java API for WebSockets 1.0
@ServerEndpoint(“/chat”)public class ChatBean {
@OnOpen public void onOpen(Session peer) { peers.add(peer); }
@OnClose public void onClose(Session peer) { peers.remove(peer); }
@OnMessage public void message(String msg, Session client) { peers.forEach(p > p.getRemote().sendMessage(msg)); }}
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Maven Archetype para o Java EE 7
Maven Archetypes para Java EE 7– http://mojo.codehaus.org
Maven Archetype com o Embedded GlassFish configurado– http://github.com/glassfish/javaee7-archetype
Agora só precisa... – $ mvn package embedded-glassfish:run
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JAX-RS 2.0
Client API Message Filters & Entity Interceptors Asynchronous Processing – Server & Client Suporte Hypermedia Common Configuration
– Compartilhar configuração comum entre diversos serviços REST
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JAX-RS 2.0 - Client
// Get instance of ClientClient client = ClientFactory.getClient();
// Get customer name for the shipped productsString name = client.target(“http://.../orders/{orderId}/customer”) .resolveTemplate(“orderId”, “10”) .queryParam(“shipped”, “true)” .request() .get(String.class);
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JAX-RS 2.0 - Server
@Path("/async/longRunning")public class MyResource {
@GET public void longRunningOp(@Suspended AsyncResponse ar) { ar.setTimeoutHandler(new MyTimoutHandler()); ar.setTimeout(15, SECONDS); Executors.newSingleThreadExecutor().submit(new Runnable() { public void run() { ... ar.resume(result); }}); }}
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JavaServer Faces 2.2
Flow Faces HTML5 Friendly Markup Cross-site Request Forgery Protection Carregamento de Facelets via ResourceHandler Componente de File Upload Multi-templating
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JSON API 1.0
JsonParser– Processa JSON em modo “streaming”
– Similar ao XMLStreamReader do StaX
Como criar– Json.createParser(...)
– Json.createParserFactory().createParser(...)
Eventos do processador– START_ARRAY, END_ARRAY, START_OBJECT, END_OBJECT, ...
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JSON API 1.0
"phoneNumber": [ { "type": "home", "number": ”408-123-4567” }, { "type": ”work", "number": ”408-987-6543” }]
JsonGenerator jg = Json.createGenerator(...);jg. .beginArray("phoneNumber") .beginObject() .add("type", "home") .add("number", "408-123-4567") .endObject() .beginObject() .add("type", ”work") .add("number", "408-987-6543") .endObject() .endArray();jg.close();
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NetBeans e o suporte ao HTML5
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NetBeans 7.3
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HTML5 Wizard
Twitter Bootstrap HTML5 Boilerplate Initializr AngularJS Mobile Boilerplate
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Javascript Editor
Code Completion Contexto de Execução Debug com Chrome Browser log
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Instalando o Chrome Extension do NetBeans
Instalação Offline
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Implementação de Referência do Java EE
download.java.net/glassfish/4.0/promoted/
GlassFish 4.0
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Adopt a JSR
JUGs participando ativamente Promovendo as JSRs
– Para a comunidade Java
– Revendo specs
– Testando betas e códigos de exemplo
– Examplos, docs, bugs
– Blogging, palestrando, reuniões de JUG
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Adopt a JSRJUGs Participantes
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E o futuro Java EE 8?
Arquitetura Cloud Multi tenancy para aplicações
SaaS Entrega incremental de JSRs Modularidade baseada no Jigsaw
Java EE 8
PaaSEnablement
Multitenancy
NoSQL
JSON-B
ModularityCloud
Storage
Thin ServerArchitecture
Cloud Programming Model
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Participe hoje mesmo!
GlassFish 4.0 Java EE 7 RI – http://www.glassfish.org Java EE Expert Group – http://javaee-spec.java.net Adopt a JSR – http://glassfish.org/adoptajsr The Aquarium (GF Blog) – http://blogs.oracle.com/theaquarium NetBeans e Java EE 7 – http://wiki.netbeans.org/JavaEE7 Java EE 7 HOL – http://www.glassfish.org/hol
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Perguntas?
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[email protected]/brunoborges
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The preceding is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract.It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.
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