JEE Programming - 04 Java Servlets
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The document provides an outline and instructions for a hands-on lab on Java servlets. The lab covers creating basic servlets, connecting servlets to a database via JDBC, handling HTTP sessions in servlets, invalidating HTTP sessions, and deploying servlets in a WAR file on WebLogic server. The lab instructions include screenshots and steps for setting up servlet classes, making code changes, running servlets, and testing the servlets.
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JEE Programming - 04 Java Servlets
- 1. Module 04 – Java Servlets Danairat T. Line ID: Danairat FB: Danairat Thanabodithammachari +668-1559-1446
- 2. JEE and Web Application Development The Course Outline Module 01 - Introduction to JEE Module 02 - The JEE Containers Module 03 - The Model-View-Controller Design Pattern Module 04 - Java Servlets Module 05 - Java Server Pages in MVC Module 06 - JEE Web Application Deployment Module 07 - Enterprise Java Bean Module 08 - JEE Enterprise Application Deployment
- 3. Java Servlets Java programming language class that is used the capabilities of servers that host applications accessed by means of a request- response programming model. The javax.servlet and javax.servlet.http packages provide interfaces and classes for writing servlets. The HttpServlet class provides methods, such as doGet and doPost, for handling HTTP-specific services.
- 4. Java Servlets Architecture Java Servlets
- 5. Java Servlets Life Cycle
- 6. Variable Scopes Application Scope Session Scope Request Scope Create in Servlet or JSP and retrieve the attributes by only next target Servlet or JSP Create in Servlet or JSP and retrieve the attributes by Servlet or JSP until • Servlet/JSP activate session invalidation • User close Web Browser Initial attributes by the Application Server and retrieve the attributes by Servlet or JSP until Servlet shutdown
- 7. Java Servlets in Deployment File Structure
- 8. Hands-on Lab: Basic Servlets
- 9. Hands-on Lab: Basic Servlets 1. Select “New Application ” 2. Select “Java EE Web Application”
- 10. Hands-on Lab: Basic Servlets 3. Enter Application Name 4. Click “Next”
- 11. Hands-on Lab: Basic Servlets 5. Click “Next” 6. Click “Next”
- 12. Hands-on Lab: Basic Servlets 5. Click “Next” 6. Click “Finish”
- 13. Hands-on Lab: Basic Servlets 7. Click “New” from “ViewController” project 8. Select “HTTP Servlet”
- 14. Hands-on Lab: Basic Servlets 9. Click “Next” 10. Enter Class name”, Click “Next”
- 15. Hands-on Lab: Basic Servlets 11. Click “Next” 12. Click “Finish”
- 16. Hands-on Lab: Basic Servlets 13. Make Some change in the code
- 17. Hands-on Lab: Basic Servlets 14. Click “Save” and Click “Run” the Servlet
- 18. Hands-on Lab: Basic Servlets 15. Result Servlet Web
- 19. Hands-on Lab: Servlet Data Source Connection
- 20. Hands-on Lab: Servlet Data Source Connection 1. Click “New Application ” 2. Select “Java EE Web Application”, Click “OK”
- 21. Hands-on Lab: Servlet Data Source Connection 3. Enter “Servlet_JDBC_DS” for Application Name 4. Click “Next”
- 22. Hands-on Lab: Servlet Data Source Connection 5. Click “Next” 6. Click “Next”
- 23. Hands-on Lab: Servlet Data Source Connection 7. Click “Next” 8. Click “Finish”
- 24. Hands-on Lab: Servlet Data Source Connection 9. Click “New” from “ViewController” project 10. Select “HTTP Servlet”, Click “OK”
- 25. Hands-on Lab: Servlet Data Source Connection 11. Enter “Servlet_JDBC_DS” for Class 12. Click “Next”
- 26. Hands-on Lab: Servlet Data Source Connection 13. Click “Finish”
- 27. Hands-on Lab: Servlet Data Source Connection 14. Make change to the code
- 28. Hands-on Lab: Servlet Data Source Connection 15. Make change to the code
- 29. Hands-on Lab: Servlet Data Source Connection 16. Make change to the code, Click “Run”
- 30. Hands-on Lab: Servlet Data Source Connection 17. See the Result from Database
- 31. Hands-on Lab: Servlets and HTTP Session Handling
- 32. Hands-on Lab: Servlets and HTTP Session Handling Creating HTTP Session 1. Click “New Application ” 2. Select “Java EE Web Application”, Click “OK”
- 33. Hands-on Lab: Servlets and HTTP Session Handling Creating HTTP Session 3. Enter Servlet Name 4. Click “Next”
- 34. Hands-on Lab: Servlets and HTTP Session Handling Creating HTTP Session 5. Click “Next” 6. Click “Next”
- 35. Hands-on Lab: Servlets and HTTP Session Handling Creating HTTP Session 7. Click “Next” 8. Click “Finish”
- 36. Hands-on Lab: Servlets and HTTP Session Handling Creating HTTP Session 9. Click “New” from “ViewController” project 10. Select “HTTP Servlet”, Click “OK”
- 37. Hands-on Lab: Servlets and HTTP Session Handling Creating HTTP Session 11. Enter Servlet Class Name 12. Click “Next”
- 38. Hands-on Lab: Servlets and HTTP Session Handling Creating HTTP Session 13. Click “Finish”
- 39. Hands-on Lab: Servlets and HTTP Session Handling Creating HTTP Session 14. Make change to the code by set HTTP session attribute
- 40. Hands-on Lab: Servlets and HTTP Session Handling Getting HTTP Session 15. Click “New” from “ViewController” project 16. Select “HTTP Servlet”
- 41. Hands-on Lab: Servlets and HTTP Session Handling Getting HTTP Session 17. Enter Servlet Name 18. Click “next”
- 42. Hands-on Lab: Servlets and HTTP Session Handling Getting HTTP Session 19. Click “Finish”
- 43. Hands-on Lab: Servlets and HTTP Session Handling Getting HTTP Session 20. Make change to the code by adding the HTTP session retrieval
- 44. Hands-on Lab: Servlets and HTTP Session Handling Getting HTTP Session 21.Click “Run” from the “Servlet_SetHTTPSession”
- 45. Hands-on Lab: Servlets and HTTP Session Handling Getting HTTP Session 22. Done execute adding properties to HTTP Session
- 46. Hands-on Lab: Servlets and HTTP Session Handling Getting HTTP Session 23. Retrieve the session from other servlet “servlet_gethttpsession”
- 47. Hands-on Lab: Servlets and HTTP Session Handling Getting HTTP Session 23. (Optional) Test access the Servlet_GetHTTPSession before the set HTTP Session
- 48. Hands-on Lab: Servlets invalidate the HTTP Session
- 49. Hands-on Lab: Servlets invalidate the HTTP Session 1. Click “New” from “ViewController” project by using the previous Application workspace 2. Select “HTTPServlet”
- 50. Hands-on Lab: Servlets invalidate the HTTP Session 3. Enter Servlet Name 4. Click “Finish”
- 51. Hands-on Lab: Servlets invalidate the HTTP Session 5. Make change to the code
- 52. Hands-on Lab: Servlets invalidate the HTTP Session 6. Click “Run” from “Servlet_Set_HTTPSession”
- 53. Hands-on Lab: Servlets invalidate the HTTP Session 7. The result from set session servlet
- 54. Hands-on Lab: Servlets invalidate the HTTP Session 8. Type the URL to access “Servlet_GetHTTPSession”, The session attribute displayed
- 55. Hands-on Lab: Servlets invalidate the HTTP Session 9. Access the invalidate HTTP Session
- 56. Hands-on Lab: Servlets invalidate the HTTP Session 10. Access the “Servlet_GetHTTPSession
- 57. Hands-on Lab: Servlets Package and Deployment
- 58. Hands-on Lab: Servlets Package and Deployment 1. Open “Servlet_JDBC_DataSource”, Click “Deploy” from “ViewController” project
- 59. Hands-on Lab: Servlets Package and Deployment 2. Select “Deploy to WAR”, Click “Next” 3. Click “Finish”
- 60. Hands-on Lab: Servlets Package and Deployment 4. You will see the output WAR file 5. Select “Launch Administrative Console”
- 61. Hands-on Lab: Servlets Package and Deployment 6. Login as WebLogic administrator 7. Click “Deployment”
- 62. Hands-on Lab: Servlets Package and Deployment 8. Click “Install”
- 63. Hands-on Lab: Servlets Package and Deployment 9. Select the target WAR file
- 64. Hands-on Lab: Servlets Package and Deployment 10. Click “Next”
- 65. Hands-on Lab: Servlets Package and Deployment 11. Application monitoring
- 66. Hands-on Lab: Servlets Package and Deployment 12. Test Servlet access JDBC Data Source
- 67. Danairat T. Line ID: Danairat FB: Danairat Thanabodithammachari +668-1559-1446 Thank you