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图解 Java EE 6

图解 Java EE 6. 蒋健. GlassFish V3 OnePager 阅读心得分享. Java 企业应用进入 Java EE 时代. 2007.9. Java 企业应用 GlassFish 是 前沿阵地上的排头兵. GlassFish v1/v2 -> Java EE 5 GlassFish v3(V3 Prelude) -> Java EE 6. Java EE6. Java EE5. v3. V3 Prelu d e. v1. v2. UR1. UR2. v2.1. GlassFish 启动. Tomcat. 2009 .6.

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图解 Java EE 6

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  1. 图解 Java EE 6 蒋健 GlassFish V3 OnePager阅读心得分享

  2. Java企业应用进入Java EE时代

  3. 2007.9 Java企业应用GlassFish是前沿阵地上的排头兵 • GlassFish v1/v2 -> Java EE 5 • GlassFish v3(V3 Prelude) -> Java EE 6 Java EE6 Java EE5 v3 V3 Prelude v1 v2 UR1 UR2 v2.1 GlassFish启动 Tomcat 2009.6 2005.6 2008.11 2006.5 2008.12

  4. Java EE规范和GlassFish

  5. GlassFish V3 One Pager • Overview and Infrastructure • HK2, OSGi, Grizzly, Admin infrastructure, Logging, File Layout, Extensibility, Embedded Server, L10n • Containers and Core Services • Naming and Injection Manager, Resource, Security, Transaction Service ，Scripting, Web, EJB , Metro, Web Service Integration, Jersey Integration, Java EE Service Engine • Management and Monitoring • Command Line, Admin Console, Monitoring, AMX, MBean Annotation Library… • http://wiki.glassfish.java.net/Wiki.jsp?page=V3FunctionalSpecs 开源所开放的不只是源代码。。。

  6. Servlet 3.0 • Ease of development • Pluggability • <web-fragment> • asynchronous support • Server push @WebServlet(name="mytest",  urlPatterns={"/myurl"}, initParams={ @InitParam(name="n1", value="v1") }) public class TestServlet extends HttpServlet { .... }

  7. NIO Server • Why NIO Server? • 解决了Java-based Server的性能问题 • Thread, Request, Connection的新玩法 • Grizzly的新进展 • 主外也主内的灰熊 • 前置于Web Container • Atmosphere：Comet Framework • GrizzlyAdapter • ServletAdapter,CometAdapter,OSGiMainAdapter

  8. Servlet 3.0 老树发新芽

  9. J2EE without EJB … • Complexity • Entity bean • Less portable • Scalability • No Singleton • 类Java Bean的轻量级开发 • JPA • 所有主流厂家基于标准的一致支持 • 集群，走向成熟 • 3.1支持Singleton

  10. Java EE without EJB 3? • 轻量级的开发 • Annotation，支持DI • 没有部署描述符 • 让EJB容器来遮风避雨 • 可移植性，事务，安全，性能优化 • 管理和监控 • EJB 3.1 • EJB with Restful • War的形式部署 • No interface 将iphone仅仅用作mp3?

  11. JSF • JSF in JEE 6 • Ajax • composite components • JSF in GlassFish • Mojarra - JSF 2.0 RI • JSFTemplate • FaceTester <h:outputScript name="ajax.js" library="javax.faces" target="head"/> … <h:commandButton id="button1" value="Count" onclick="javax.faces.Ajax.ajaxRequest(this, event, {execute: this.id, render: 'out1'}); return false;"/>

  12. JSF-封装服务器端和客户端的风景

  13. Restful - JSR311 • Restful in JEE 6 • 更轻量的Web Service • URI表示可对其执行确定操作的资源 • 和EJB 3.1的结合 • Restful in GlassFish • Jersey是Rest风格的T恤衫 • Restful + JMX用于monitoring @Stateless @Path("ssb") public class HelloWorldEJB {     @GET     public String hello() {          return “Hello World!" ;     } } Client client = Client.create(); WebResource webResource = client.resource("http://localhost:8080/helloapp/resources/ssb"); String result = webResource.get(String.class); 通过Jersey在客户端访问URI 将Session Bean发布成RestFul的资源

  14. OSGi • OSGi in JEE6 • 为多数App Server所采用 • 模块化(design time)，物理层面上定义依赖 • 动态化(runtime)，热插拔，多版本… • OSGi in GlassFish • 不一样的HK2 • 所有模块都以OSGi Bundle的形式提供，update center • 直接部署OSGi bundle asadmin deploy --type osgi simple-service-api.jar telnet localhost 6666 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Felix Remote Shell Console:

  15. OSGi的效果图(未必适合每个人的口味)

  16. JMX • JMX in JEE 6 • 为应用贴上条码 • 轻量级的标准统一的管理接口 • @MBean, @MXBean • JMX in GlassFish • AMX (Appserver Management eXtensions) • GMBAL(GlassFish MBean Annotation Library) • @ManagedObject • JMX+Rest

  17. GlassFish V3的管理界面

  18. JEE 6的主题和“秘技” • Annotation • Restful • NIO Server • OSGi Rightsizing = Flexibility, Focus, Simplification

  19. 社区因人而生动

  20. 谢谢大家! 家常咖啡 http://blogs.sun.com/jiangjian 21

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