What is play
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The document discusses the Play web framework and how it compares to traditional Java web development using servlets and XML configuration. Play allows building web applications in Java without servlets and XML by embedding the web framework directly into the code using a convention over configuration approach. It also supports features like asynchronous programming and websockets. Several companies that have used Play in production are mentioned.
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What is play
- 1. Play! @ikeike443 2011/10/08 Playframework In Tokyo 11 10 8
- 2. 11 10 8
- 3. @ikeike443 Jenkins Playframework 11 10 8
- 4. Play! @ikeike443 2011/10/08 Playframework In Tokyo 11 10 8
- 5. Play Play Play2.0 http://www.flickr.com/photos/paulwhaleyphotography/133897626/ 11 10 8
- 6. Play ... Java LL Web Servlet API FW XML FW FW FW 11 10 8
- 7. 11 10 8
- 8. Play! 11 10 8
- 9. Play Java (Java EE) W3C World Wide Web 11 10 8
- 10. public class HelloServlet extends HttpServlet { public void doGet (HttpServletRequest req, HttpServletResponse res) { PrintWriter out = res.getWriter(); out.println("Hello, world!"); out.close(); } } <web-app xmlns="http://java.sun.com/xml/ns/j2ee" version="2.4" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http:/java.sun.com/dtd/web-app_2_3.dtd"> <servlet> <servlet-name>hello</servlet-name> <servlet-class>test.HelloServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>hello</servlet-name> <url-pattern>/hello</url-pattern> </servlet-mapping> </web-app> 11 10 8
- 11. public class HelloServlet extends HttpServlet { public void doGet (HttpServletRequest req, HttpServletResponse res) { PrintWriter out = res.getWriter(); out.println("Hello, world!"); out.close(); } } <web-app xmlns="http://java.sun.com/xml/ns/j2ee" version="2.4" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http:/java.sun.com/dtd/web-app_2_3.dtd"> <servlet> <servlet-name>hello</servlet-name> <servlet-class>test.HelloServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>hello</servlet-name> <url-pattern>/hello</url-pattern> </servlet-mapping> </web-app> 11 10 8
- 12. public class Hello extends Controller { public static void index() { render(“"Hello, world!"”); } } 11 10 8
- 13. public class Hello extends Controller { public static void index() { render(“"Hello, world!"”); } } 11 10 8
- 14. Java web Java Play! 11 10 8
- 15. 11 10 8
- 16. 11 10 8
- 17. 11 10 8
- 18. DB REST API 10 11 10 8
- 19. 11 10 8
- 20. 11 10 8
- 21. Servlet XML 11 10 8
- 22. Play! 11 10 8
- 23. Play Play Play2.0 http://www.flickr.com/photos/flotaz/2471940678/ 11 10 8
- 24. HTTP I/O 11 10 8
- 25. Servlet HTTP JPA 11 10 8
- 26. HTTP XML URL FW Javassist Byte code enhance 11 10 8
- 27. HTTP Servlet API Strtus Java Web HTTP Java API Web HTTP Play Java web 11 10 8
- 28. HTTP Servlet API Strtus Java Web HTTP Java API Web HTTP Play Java web 11 10 8
- 29. Play FW Play HttpSession Controller#session Cookie Memcached 11 10 8
- 30. Java Web : ? Share Nothing PHP Ruby on Rails Django Web Ajax Web HTTP 11 10 8
- 31. Java Web : ? Share Nothing PHP Ruby on Rails Django Web Ajax Web HTTP 11 10 8
- 32. I/O 11 10 8
- 33. 11 10 8
- 34. Netty I/O commons-javaflow Java WebSocket 11 10 8
- 35. public static void generatePDF(Long reportId) { Promise<InputStream> pdf = new ReportAsPDFJob(report).now(); InputStream pdfStream = await(pdf); renderBinary(pdfStream); } public static void generateLargeCSV() { CSVGenerator generator = new CSVGenerator(); response.contentType = "text/csv"; while(generator.hasMoreData()) { String someCsvData = await(generator.nextDataChunk()); response.writeChunk(someCsvData); } } 11 10 8
- 36. I/O node.js ... Groovy... http://www.subbu.org/blog/2011/03/nodejs-vs-play-for-front-end-apps 11 10 8
- 37. 11 10 8
- 38. play.lib.F 11 10 8
- 39. public class AsyncTest extends Controller { public static void gotchas() { params.put("foo", "bar"); renderArgs.put("foo", "bar"); final String foo = "bar"; F.Promise<WS.HttpResponse> remoteCall1 = WS.url("http://some/data/1").getAsync(); F.Promise<WS.HttpResponse> remoteCall2 = WS.url("http://some/data/2").getAsync(); F.Promise<WS.HttpResponse> remoteCall3 = WS.url("http://some/data/3").getAsync(); F.Promise<List<WS.HttpResponse>> promises = F.Promise.waitAll(remoteCall1, remoteCall2, remoteCall3); await(promises, new F.Action<List<WS.HttpResponse>>() // request suspended here { public void invoke(List<WS.HttpResponse> httpResponses) { System.out.println(params.get("foo")); System.out.println(renderArgs.get("foo")); System.out.println(foo); render(httpResponses); } }); System.out.println("End"); // never called } } 11 10 8
- 40. public static void echo() { while(inbound.isOpen()) { WebSocketEvent e = await(inbound.nextEvent()); for(String quit: TextFrame.and(Equals("quit")).match(e)) { outbound.send("Bye!"); disconnect(); } for(String msg: TextFrame.match(e)) { outbound.send("Echo: %s", frame.textData); } for(WebSocketClose closed: SocketClosed.match(e)) { Logger.info("Socket closed!"); } } } 11 10 8
- 41. 11 10 8
- 42. JavaEE … 11 10 8
- 43. War war 11 10 8
- 44. 11 10 8
- 45. HTTP I/O 11 10 8
- 46. Play Play Play2.0 http://www.flickr.com/photos/dbrekke/276119940/ 11 10 8
- 47. 11 10 8
- 48. 11 10 8
- 49. TypeSafe 11 10 8
- 51. 11 10 8
- 52. Digg 11 10 8
- 53. http://about.digg.com/blog/awacs 11 10 8
- 54. 11 10 8
- 55. gurdian.co.uk 11 10 8
- 57. 11 10 8
- 58. Klout 11 10 8
- 59. 11 10 8
- 60. Play+Scala @_feripera 11 10 8
- 61. @_felipera 11 10 8
- 62. @_felipera Accenture (US) Verizon Fannie Mae Freddie Mac Foreclosure.com 11 10 8
- 63. @_felipera Accenture (US) Verizon Fannie Mae Accenture, Verizon, Fannie Mae, Freddie Freddie Mac Mac, Foreclosure.com. Other places I deployed Play at. Foreclosure.com 11 10 8
- 64. @_felipera Play, Scala, RabbitMQ, ElasticSearch, Accenture (US) Hadoop, HBase, Oozie, Flume, etc are all part of Klout's stack. Verizon Fannie Mae Accenture, Verizon, Fannie Mae, Freddie Freddie Mac Mac, Foreclosure.com. Other places I deployed Play at. Foreclosure.com 11 10 8
- 65. Play Play Play2.0 http://www.flickr.com/photos/lwr/168151244/ 11 10 8
- 66. Scala Coffeescript Akka Elastic Search (lucene) MongoDB, Morphia VHost Redis PaaS SASS, SCSS 11 10 8
- 67. Scala, Akka Scala Play! Akka (Akka support 11 10 8
- 68. MongoDB, Redis KVS MongoDB, Redis MongoDB Morphia 11 10 8
- 69. SASS, SCSS CSS SASS, SCSS Play SASS 11 10 8
- 70. CoffeeScript Javascript Javascript Rails3.1 11 10 8
- 71. Elastic Search (lucene) lucene Simple search lucene 11 10 8
- 72. VHost Play Virtual Host SaaS 11 10 8
- 73. Play Play Play2.0 http://www.flickr.com/photos/jim_rafferty_uk/365164119/ 11 10 8
- 74. 2 PaaS 11 10 8
- 75. Unix, Linux, MacOSX, Windows JDK5 + Python2.6 Win JDK OK 11 10 8
- 76. PaaS Heroku PlayApps.net Cloudbees Cloudfoundry Google AppEngine DotCloud Amazon Beanstalk 11 10 8
- 77. PaaS Heroku PlayApps.net Cloudbees Cloudfoundry Google AppEngine DotCloud Amazon Beanstalk 11 10 8
- 78. PaaS Heroku PlayApps.net Cloudbees Cloudfoundry Google AppEngine DotCloud Amazon Beanstalk 11 10 8
- 79. PaaS Heroku PlayApps.net Cloudbees Cloudfoundry Google AppEngine war DotCloud Amazon Beanstalk 11 10 8
- 80. PaaS Heroku PlayApps.net Cloudbees Cloudfoundry Google AppEngine war DotCloud Amazon Beanstalk 11 10 8
- 81. 1.x Play! http://www.flickr.com/photos/funkimag/5397995349/ 11 10 8
- 82. Play Play Play2.0 http://www.flickr.com/photos/alphadesigner/3833696256/ 11 10 8
- 83. 11 10 8
- 84. Scala SBT Python Scala Groovy Akka 11 10 8
- 85. Preview 11 10 8
- 86. … Play! 11 10 8
- 87. 11 10 8