Ever wondered why all software project books are complex and tedious to understand! In fact, they should be fast and fun to comprehend. One book that stands out for following this thought consistently is the J2EE 1.7 Projects book. The projects in this book abide by two concepts—first, to help engineer the best software product that follows all phases of Software Development Life Cycle, including analysis, software design, testing and implementation; and second, to efficiently use the features, tools, and technologies provided by the platform for the project

Contents

INTRODUCTION ................................................................................................................ xiii
CHAPTER 1: INTRODUCING JAVA EE ...................................................................................... 1
Need for Enterprise Programming ................................................................................................................ 4
Enterprise Architecture Layers ...................................................................................................................... 5
Exploring Enterprise Architecture Types ....................................................................................................... 6
The Single-Tier Architecture ............................................................................................................................... 6
The 2-Tier Architecture ...................................................................................................................................... 6
The 3-Tier Architecture ...................................................................................................................................... 8
The n-Tier Architecture ...................................................................................................................................... 9
Objectives of Enterprise Applications ......................................................................................................... 11
Introducing the Java EE 7 Platform ............................................................................................................. 13
Features of the Java EE Platform ................................................................................................................. 14
Platform Independence .................................................................................................................................... 14
Managed Objects ............................................................................................................................................. 14
Reusability ........................................................................................................................................................ 14
Modularity ........................................................................................................................................................ 15
Easier Development .......................................................................................................................................... 15
Simplified EJB ................................................................................................................................................... 15
Enhanced Web Services ................................................................................................................................... 15
Support for Web 2.0 ......................................................................................................................................... 15
New Features of Java EE 7 Platform ............................................................................................................ 15
Exploring the Java EE 7 Platform ................................................................................................................ 16
The Runtime Infrastructure ............................................................................................................................... 16
The Java EE 7 APIs ............................................................................................................................................ 17
Exploring the Architecture of Java EE 7 ....................................................................................................... 21
Describing Java EE 7 Containers ................................................................................................................ 22
Container Types ............................................................................................................................................... 23
Java EE 7 Container Architecture ....................................................................................................................... 23
Developing Java EE 7 Applications............................................................................................................. 26
Probable Java EE Application Architectures ....................................................................................................... 27
Application Development and Deployment Roles ............................................................................................. 29
Application Development Process ..................................................................................................................... 30
Listing the Compatible Products for the Java EE Platform ........................................................................... 32
Introducing the Servers for Java EE Applications ......................................................................................... 33
Introducing Web Servers .................................................................................................................................. 34
Introducing Application Servers ......................................................................................................................... 34
Technologies used in Projects Development .............................................................................................. 35
Servlets ............................................................................................................................................................. 35
iv J2EE 1.7 PROJECTS
JSP .................................................................................................................................................................... 37
Struts Framework .............................................................................................................................................. 38
Java Server Faces .............................................................................................................................................. 41
The Spring Framework ..................................................................................................................................... 42
PROJECT I: CHAT APPLICATION
CHAPTER 1: CASE STUDY: CHAT APPLICATION ...................................................................... 47
SDLC of the Project .................................................................................................................................. 50
Requirement Analysis ....................................................................................................................................... 50
Software Design ............................................................................................................................................... 50
Development.................................................................................................................................................... 51
Testing .............................................................................................................................................................. 52
Implementation and Maintenance ..................................................................................................................... 52
CHAPTER 2: CREATING HOME PAGE ..................................................................................... 53
Creating MainChatServlet Servlet ........................................................................................................ 56
MainChatServlet.java .............................................................................................................................. 56
Mapping of Servlet in web.xml ........................................................................................................................ 59
Designing Home Page ............................................................................................................................... 60
Running the Application ............................................................................................................................ 62
CHAPTER 3: LOGIN MODULE............................................................................................... 65
Creating Login User Interfaces ................................................................................................................... 67
Creating login.jsp ....................................................................................................................................... 67
Creating loginhandler.jsp ......................................................................................................................... 70
Creating loginfail.jsp ............................................................................................................................... 73
Creating logout.jsp ..................................................................................................................................... 74
CHAPTER 4: ADMIN MODULE .............................................................................................. 75
Adding New Users ................................................................................................................................... 77
Creating adduser.jsp ................................................................................................................................... 78
Creating adduserhandler.jsp .................................................................................................................... 79
Viewing Users .......................................................................................................................................... 80
Deleting Users .......................................................................................................................................... 83
Configuring ChatRooms .............................................................................................................................. 84
CHAPTER 5: USER MODULE ................................................................................................. 89
Selecting Chat Room ............................................................................................................................... 91
Implementing Chatting Process .................................................................................................................. 95
doGet() Method ............................................................................................................................................ 99
doPost() Method ........................................................................................................................................ 100
getProfileName() Method ........................................................................................................................ 101
getRoom() Method ...................................................................................................................................... 101
TABLE OF CONTENTS v
messageFrame() Method ............................................................................................................................ 102
writeMessage() Method ............................................................................................................................ 103
Creating ChatRoomEntry Class .................................................................................................................. 104
PROJECT II: PEOPLE MANAGEMENT
CHAPTER 1: CASE STUDY: PEOPLE MANAGEMENT ............................................................... 109
Software Requirements .............................................................................................................................111
SDLC of the Project .................................................................................................................................111
Requirement Analysis ..................................................................................................................................... 112
Software Design ............................................................................................................................................. 112
Database Design ............................................................................................................................................ 113
Development.................................................................................................................................................. 117
Testing ............................................................................................................................................................ 118
Implementation and Maintenance ................................................................................................................... 118
Summary .................................................................................................................................................118
CHAPTER 2: CASE STUDY: CREATING LOGIN MODULE ........................................................ 119
Designing Login User Interface .................................................................................................................121
Creating the people_user_login Servlet ................................................................................................... 123
Creating the UserLoginDBObj Class ............................................................................................................ 126
Creating the UserLoginDBMethods Class .................................................................................................... 127
Creating the people_default.jsp File ...................................................................................................... 129
Directory Structure of the Project ..............................................................................................................133
Login and Navigating to Home Page .........................................................................................................134
Changing Password .................................................................................................................................136
CHAPTER 3: CASE STUDY: CREATING PROFILE MANAGEMENT MODULE ................................ 139
Implementing Logic with Servlet ...............................................................................................................141
Creating the people_employee Servlet ........................................................................................................ 142
Creating the EmployeeDBObj Class .............................................................................................................. 146
Creating the EmployeeDBMethods Class ...................................................................................................... 147
Creating the GenerateId Class ..................................................................................................................... 150
Creating Views ........................................................................................................................................151
Creating the employee_insert JSP Page ..................................................................................................... 151
Creating the employee_search JSP Page ..................................................................................................... 156
Creating the employee_edit JSP Page ......................................................................................................... 158
Creating the employee_list JSP Page ......................................................................................................... 162
Creating the employee_profile JSP Page................................................................................................... 164
CHAPTER 4: CASE STUDY: CREATING RECRUITMENT MODULE .............................................. 169
Creating the people_applicant Servlet ..................................................................................................... 172
Creating the ApplicantDBObj Class ............................................................................................................ 176
Creating the ApplicantDBMethods Class .................................................................................................... 176
Creating the GenerateId Class ..................................................................................................................... 183
vi J2EE 1.7 PROJECTS
Creating an Interface for Applicant Registration ............................................................................................... 184
Creating the applicant_test_dtl Servlet ................................................................................................. 196
Designing JSP Views ....................................................................................................................................... 202
Working of the Recruitment Module ............................................................................................................... 214
CHAPTER 5: CASE STUDY: CREATING ATTENDANCE MANAGEMENT MODULE ......................... 217
Creating the time_management Servlet .................................................................................................219
Creating JSP Views ...................................................................................................................................230
Creating the employee_daily_attendance JSP Page ............................................................................... 230
Creating the employee_daily_attendance_summary JSP Page .............................................................. 233
CHAPTER 6: CASE STUDY: CREATING LEAVE MANAGEMENT MODULE ................................... 237
Creating the leave_management Servlet ..............................................................................................239
Creating the LeaveRequest Class ............................................................................................................... 245
Creating the LeaveMgmtBeanMethods Class ............................................................................................... 246
Creating the GenerateId Class ..................................................................................................................... 251
Designing JSP Views ................................................................................................................................251
Creating the leave_request JSP Page ......................................................................................................... 252
Creating the leave_request_edit JSP Page ............................................................................................. 256
Creating the leave_request_reject JSP Page .......................................................................................... 260
Creating the leave_request_list JSP Page ........................................................................................ 263
CHAPTER 7: CASE STUDY: CREATING PAYROLL MODULE ..................................................... 267
Updating Salary Statement ........................................................................................................................269
Creating people_payroll Servlet .........................................................................................................270
Creating the EmpSal Class .............................................................................................................................. 277
Creating the EmployeeAgreement Class ...................................................................................................... 278
Creating the PayrollBeanMethods Class .................................................................................................... 278
Designing JSP Views ................................................................................................................................286
Creating the employee_agreement JSP Page .............................................................................................. 286
Creating the employee_agreement_edit JSP Page ................................................................................... 291
Creating the salary_search.jsp File ........................................................................................................ 293
Creating the salary_slip JSP Page .............................................................................................................. 294
PROJECT III: ONLINE SHOPPING SITE
CHAPTER 1: CASE STUDY: MYSHOPPINGSITE ....................................................................... 301
SDLC of the Project .................................................................................................................................304
Requirement Analysis ..................................................................................................................................... 304
Client-Side Requirements ............................................................................................................................... 304
Customer-Side Requirements.......................................................................................................................... 304
Software Design ............................................................................................................................................. 304
Database Design ............................................................................................................................................ 307
Development.................................................................................................................................................. 308
TABLE OF CONTENTS vii
Testing ............................................................................................................................................................ 308
Implementation and Maintenance ................................................................................................................... 308
CHAPTER 2: CREATING HOME PAGE ................................................................................... 309
The Directory Structure .............................................................................................................................311
web.xml ........................................................................................................................................................ 312
The struts-config.xml File ..................................................................................................................... 314
Creation of Home Page .............................................................................................................................316
CHAPTER 3: CREATING LOGIN INTERFACE ........................................................................... 321
Creating the LoginForm Class .................................................................................................................323
The reset() Method .................................................................................................................................... 325
The validate() Method .............................................................................................................................. 325
Creating the LoginAction Class ............................................................................................................325
The getUser() Method ............................................................................................................................... 325
The execute() Method ............................................................................................................................... 326
Creating the login.jsp File ...................................................................................................................329
MessageResources and ApplicationResources.properties ................................................................................ 330
Updating the struts-config.xml File ................................................................................................331
Creating the CategoryListAction Class .............................................................................................333
Creating the categoryList.jsp File ....................................................................................................335
Working of Module .................................................................................................................................337
CHAPTER 4: MANIPULATING CATEGORY ............................................................................. 339
Adding Category ......................................................................................................................................341
Creating the addCategory.jsp File ............................................................................................................ 341
Creating CategoryForm ............................................................................................................................... 343
Creating AddCategoryAction ..................................................................................................................... 344
insertCategory() Method ........................................................................................................................ 344
Execute() Method ...................................................................................................................................... 344
Adding New Action and Form Bean Mapping ................................................................................................. 346
Updating Category ...................................................................................................................................347
GetCategoryAction Class .......................................................................................................................... 347
editCategory.jsp .................................................................................................................................... 350
EditCategoryAction Class........................................................................................................................ 351
Deleting Category ....................................................................................................................................353
DeleteCategoryAction Class ................................................................................................................... 354
CHAPTER 5: HANDLING OF PRODUCT DETAILS ................................................................... 357
Showing Product List ...............................................................................................................................359
ProductListAction Class .......................................................................................................................... 360
productList.jsp ...................................................................................................................................... 364
Adding Product .......................................................................................................................................366
viii J2EE 1.7 PROJECTS
Creating addProduct.jsp ........................................................................................................................... 367
Creating ProductForm ................................................................................................................................. 369
Creating AddProductAction Class .............................................................................................................. 371
Editing Product ........................................................................................................................................374
GetProductAction Class ............................................................................................................................ 375
editProduct.jsp ...................................................................................................................................... 378
EditProductAction Class .......................................................................................................................... 380
Deleting Product......................................................................................................................................382
DeleteProductAction Class ..................................................................................................................... 382
CHAPTER 6: SEARCHING AND SHOPPING-CART HANDLING ................................................ 385
Searching Product ....................................................................................................................................387
Search by Category ......................................................................................................................................... 388
Search by Keyword ......................................................................................................................................... 391
SearchForm Class ........................................................................................................................................ 393
ProductSearchByKeywordAction Class .................................................................................................. 393
olns_product_search_result.jsp ...................................................................................................... 396
Shopping Using Shopping-Cart .................................................................................................................399
olns_product_dtl.jsp ............................................................................................................................ 400
AddItem2CartAction Class........................................................................................................................ 402
olns_shopping_cart_dtl.jsp ............................................................................................................... 407
ShoppingItemForm Class ............................................................................................................................ 410
olns_order_delivery_dtl.jsp ............................................................................................................. 412
OrderForm Class .......................................................................................................................................... 414
InsertOrderAction Class .......................................................................................................................... 416
olns_prod_order_dtl.jsp ...................................................................................................................... 422
PROJECT IV: BANKING INFORMATION SYSTEM
CHAPTER 1: CASE STUDY: BANKING INFORMATION SYSTEM ................................................. 427
SDLC of the Project .................................................................................................................................430
Requirement Analysis ..................................................................................................................................... 430
Software Design ............................................................................................................................................. 430
Database Design ............................................................................................................................................ 431
Development of the Project ............................................................................................................................. 433
Testing ............................................................................................................................................................ 434
Implementation and Maintenance ................................................................................................................... 434
CHAPTER 2: HIBERNATE MODULES ..................................................................................... 435
Hibernate—A Brief Discussion .................................................................................................................437
Overview of Hibernate Architecture .........................................................................................................437
Components in Hibernate Module ............................................................................................................439
Persistence Class ............................................................................................................................................ 439
Mapping File .................................................................................................................................................. 439
TABLE OF CONTENTS ix
Login—Our First Hibernate Module ..........................................................................................................439
Creating the Login Class ............................................................................................................................... 440
Creating Mapping File .................................................................................................................................... 441
The AccountHolder Hibernate Module .....................................................................................................441
The AccountHolder.java File ................................................................................................................... 441
Creating AccountHolder.hbm.xml File ..................................................................................................... 445
The Savings Hibernate Module .................................................................................................................446
The Savings.java File ............................................................................................................................... 446
Creating the Savings.hbm.xml File ............................................................................................................ 447
Recurring Hibernate Module ....................................................................................................................448
The Recurring.java File ............................................................................................................................ 448
Creating the Recurring.hbm.xml File ........................................................................................................ 450
The Current Hibernate Module .................................................................................................................450
The Current.java File ............................................................................................................................... 450
Creating the Current.hbm.xml File ............................................................................................................ 451
The Transaction Hibernate Module ...........................................................................................................452
The Transaction.java File ....................................................................................................................... 452
Creating the Transacton.hbm.xml File ...................................................................................................... 454
Configuring Hibernate ..............................................................................................................................454
The Hibernate configuration File ........................................................................................................ 455
Creating a Hibernate Session ....................................................................................................................457
The HibernateUtil Module ....................................................................................................................... 457
CHAPTER 3: JSF AND SPRING MODULES ............................................................................. 459
JSF—A Brief Discussion ............................................................................................................................461
Role of JSF in an Enterprise Application........................................................................................................... 461
Overview of JSF Architecture.......................................................................................................................... 462
Lifecycle of JSF Page ....................................................................................................................................... 464
Components of a JSF Application .................................................................................................................... 464
Exploring JSF Tag Libraries ........................................................................................................................465
The HTML Tag Library ................................................................................................................................... 465
Exploring the Core Tag Library ........................................................................................................................ 469
Creating a JSF Page ..................................................................................................................................471
JSP .................................................................................................................................................................. 471
Facelets .......................................................................................................................................................... 471
Creating Master.xhtml ............................................................................................................................... 472
Creating the index.xhtml File ..................................................................................................................... 474
Spring—A Brief Discussion .......................................................................................................................475
Login Process ................................................................................................................................................. 475
JSF Module ..................................................................................................................................................... 475
Spring Module ................................................................................................................................................ 479
x J2EE 1.7 PROJECTS
CHAPTER 4: BANK MASTER MODULES ................................................................................ 483
Managing Customer Account ....................................................................................................................485
Opening a New Account ..........................................................................................................................486
JSF Module for Opening a New Account ......................................................................................................... 486
Spring Module for Opening a New Account ................................................................................................... 494
JSF Module for Savings Account ...................................................................................................................... 498
Spring Module for Savings Account ................................................................................................................. 500
JSF Module for Current Account ...................................................................................................................... 503
Spring Module for Current Account ................................................................................................................. 505
JSF Module for Recurring Account ................................................................................................................... 507
Spring Module for Recurring Account ............................................................................................................. 511
Modifying an Account ..............................................................................................................................513
JSF Module for Modifying an Account ............................................................................................................. 513
Spring Module for Modifying an Account ........................................................................................................ 522
Viewing an Account ................................................................................................................................526
JSF Module for Viewing an Account ................................................................................................................ 526
Spring Module for Viewing an Account ........................................................................................................... 535
CHAPTER 5: TRANSACTION AND REPORT MODULES ............................................................ 537
Transactions ............................................................................................................................................539
Withdrawing Money ................................................................................................................................540
JSF Module for Withdrawing Money................................................................................................................ 540
Spring Module for Withdrawing Money .......................................................................................................... 545
Depositing Money ...................................................................................................................................549
JSF Module for Depositing Money ................................................................................................................... 549
Spring Module for Depositing Money .............................................................................................................. 552
Transferring Money ..................................................................................................................................552
JSF Module for Transferring Money ................................................................................................................. 552
Spring Module for Transferring Money ............................................................................................................ 557
Reports ....................................................................................................................................................557
Daily Report ................................................................................................................................................... 557
Monthly Report .............................................................................................................................................. 563
Spring Module for Monthly Report .................................................................................................................. 565
CHAPTER 6: CONFIGURATION AND DEPLOYMENTS ............................................................. 569
Hibernate Reverse Engineering .................................................................................................................571
The hibernate.reveng.xml File ............................................................................................................... 571
Application Configuration .........................................................................................................................572
The applicationContext.xml File .......................................................................................................... 572
Spring Configuration ................................................................................................................................572
Dispatcher Servlet Configuration...............................................................................................................573
The web.xml Configuration ....................................................................................................................574
Deploying and Running the Application ...................................................................................................576
TABLE OF CONTENTS xi
PROJECT V: BUG TRACKING SYSTEM
CHAPTER 1: CASE STUDY: BUG TRACKING SYSTEM .............................................................. 579
SDLC of the Project .................................................................................................................................582
Requirement Analysis ..................................................................................................................................... 582
Software Design ............................................................................................................................................. 583
Development.................................................................................................................................................. 585
Testing ............................................................................................................................................................ 586
Implementation and Maintenance ................................................................................................................... 587
ONLINE RESOURCE .......................................................................................................... 589