Table of Content
Copyright........................................................................................................................................... 2
Credits............................................................................................................................................................ 2
Table of Content................................................................................................................................ 4
Foreword ........................................................................................................................................... 8
Preface ............................................................................................................................................. 10
Introducing BEA WebLogic Application Servers ......................................................................................... 10
Why We Wrote this Book.............................................................................................................................11
Brief Overview of the Book.......................................................................................................................... 12
Acknowledgments ....................................................................................................................................... 13
Chapter 1. Introduction............................................................................................................ 17
What Is BEA WebLogic Server? .................................................................................................................. 17
WebLogic Server Overview......................................................................................................................... 17
How to Use this Book.................................................................................................................................. 20
System Requirements .................................................................................................................................. 23
Chapter 2. Overview of J2EE Technologies .................................................................................. 26
WebLogic Server and J2EE .......................................................................................................................... 26
Presentation Logic ....................................................................................................................................... 26
Database and Transaction Support................................................................................................................ 28
Object Registry and Remote Method Invocation (RMI) .............................................................................. 29
Enterprise JavaBeans (EJBs) ........................................................................................................................ 30
Java Message Service (JMS) ........................................................................................................................ 32
JavaMail ...................................................................................................................................................... 33
Security........................................................................................................................................................ 33
About WebAuction...................................................................................................................................... 33
Chapter 3. Building Presentation Logic with WebLogic Server Servlets ................................... 35
Introducing WebLogic Server Servlets......................................................................................................... 35
WebLogic Server JavaServer Pages (JSPs) .................................................................................................. 37
Servlets and Web Sessions........................................................................................................................... 65
The Web Application Package...................................................................................................................... 87
Using Servlets with WebLogic Server Clustering....................................................................................... 103
Best Practices for Servlets .......................................................................................................................... 105
Chapter 4. Using WebLogic Server JavaServer Pages............................................................... 107
About WebLogic Server JSPs..................................................................................................................... 107
JSP Basics.................................................................................................................................................. 109
The Lifecycle of a JSP................................................................................................................................112
JSP Page Elements......................................................................................................................................113
Using Java Beans with JSPs ....................................................................................................................... 130
Custom Tag Libraries................................................................................................................................. 146
Error Pages, Comments, and Deployment Descriptors............................................................................... 152
Using Servlets and JSPs Together: Model View Controller........................................................................ 154
Best Practices for Debugging and Developing JSPs................................................................................... 155
Best Practices for JSPs............................................................................................................................... 156
JSPs in the WebAuction Application .......................................................................................................... 156
Browsing the WebAuction Code ................................................................................................................ 161
Chapter 5. Using Databases and Transactions with JDBC and JTA........................................ 162
WebLogic Server JDBC............................................................................................................................. 162
Using the JTA Driver ................................................................................................................................. 194
WebLogic Server and Distributed Transactions.......................................................................................... 203
Error Handling and SQL Warnings............................................................................................................. 208
Metadata .................................................................................................................................................... 210
Advanced Features......................................................................................................................................211
Best Practices for JDBC ......................................................................................................................... 214
Chapter 6. Remote Method Invocation and Distributed Naming............................ 219
Remote Method Invocation ........................................................................................................................ 219
Serialization ............................................................................................................................................... 221
Using RMI in Distributed Applications ...................................................................................................... 224
JNDI: Java's Naming Service ..................................................................................................................... 226
JNDI, Security, and Identity ....................................................................................................................... 229
JNDI and Clustering .................................................................................................................................. 230
JNDI Best Practices ................................................................................................................................... 233
Chapter 7. Enterprise Messaging with the Java Message Service (JMS)............. 236
Benefits of JMS ......................................................................................................................................... 236
JMS Fundamentals .................................................................................................................................... 237
Sample JMS Queue Producer/Consumer.................................................................................................... 239
Sample JMS Topic Producer/Consumer ..................................................................................................... 245
JMS Messages ........................................................................................................................................... 249
Message Types........................................................................................................................................... 251
JMS and Transactions ................................................................................................................................ 258
Clustering JMS .......................................................................................................................................... 261
Exception Listeners ................................................................................................................................... 263
Using Multicast JMS ................................................................................................................................. 263
JMS Best Practices .................................................................................................................................... 266
Conclusion ................................................................................................................................................. 268
Chapter 8. Using Session Enterprise JavaBeans ........................................................................ 269
Enterprise JavaBeans Overview ................................................................................................................. 269
Basics of EJBs ........................................................................................................................................... 269
Stateless Session EJBs............................................................................................................................... 278
Stateful Session EJBs ................................................................................................................................ 283
Using Transactions with Session Beans ..................................................................................................... 290
EJB Security .............................................................................................................................................. 294
EJB Environment....................................................................................................................................... 297
EJB References.......................................................................................................................................... 298
Resource Manager References.................................................................................................................... 299
Handles...................................................................................................................................................... 301
Cars Example............................................................................................................................................. 303
Best Practices ............................................................................................................................................ 315
Conclusion ................................................................................................................................................. 321
Chapter 9. Entity EJBs ................................................................................................................. 322
Rationale for Entity EJBs ........................................................................................................................... 322
Entity Bean Basics..................................................................................................................................... 322
CMP Entity Bean Example........................................................................................................................ 325
CMP........................................................................................................................................................... 331
Container-Managed Entity Bean Lifecycle ................................................................................................ 333
Introduction to CMRs................................................................................................................................ 334
Writing EJB-QL for CMP Finders.............................................................................................................. 347
BMP Entity Beans ..................................................................................................................................... 350
Advanced Topics for Writing Entity EJBs.................................................................................................. 365
Entity Bean Inheritance and Polymorphism............................................................................................... 367
Entity Beans and Locking .......................................................................................................................... 370
Using Read-Only Entity Beans................................................................................................................... 375
BMP vs. CMP............................................................................................................................................ 378
Conclusion ................................................................................................................................................. 381
Chapter 10. Using Message-Driven EJBs.................................................................................... 382
Message-Driven EJB Basics....................................................................................................................... 382
Message-Driven EJB Example .............................................................................................................. 383
Message-Driven Beans and Concurrency................................................................................................... 388
Using Transactions with Message-Driven Beans ....................................................................................... 389
Message Acknowledgment ......................................................................................................................... 391
New Customer Example ............................................................................................................................. 392
Message-Driven EJB Advantages............................................................................................................... 396
Conclusion ................................................................................................................................................. 398
Chapter 11. Interfacing with Internet Mail Using WebLogic Server JavaMail....................... 399
About Email............................................................................................................................................... 399
About JavaMail.......................................................................................................................................... 400
Using JavaMail to Send Simple Email ....................................................................................................... 403
Adding Email Capability to the WebAuction Application.......................................................................... 410
JavaMail Best Practices..............................................................................................................................411
Chapter 12. Developing Security with WebLogic Server JNDI and JAAS .............................. 412
Security Technology Overview .................................................................................................................. 412
Creating Secure Web Applications ............................................................................................................. 418
Programming to the Caching Realm in Web Applications ......................................................................... 434
NewUser.jsp Example................................................................................................................................ 436
Developing Browser-Based Authentication................................................................................................ 446
Programmatic Security in Web Applications .............................................................................................. 448
Developing Secure Application Clients ...................................................................................................... 450
Using WebLogic Server JNDI for Application Client Security .................................................................. 455
About WebLogic SSL................................................................................................................................ 463
Web Clients: Using SSL Security............................................................................................................... 467
Application Clients: Using SSL Security.................................................................................................... 471
WebLogic Server Security Best Practices .................................................................................................. 472
Putting It All Together ............................................................................................................................... 472
Securing the WebAuction Application........................................................................................................ 474
Chapter 13. Designing the Production Deployment ................................................................... 475
Designing for Deployment ......................................................................................................................... 475
WebLogic Deployment Scenarios: Case Studies ........................................................................................ 476
Types of Client Software ............................................................................................................................ 476
Using a DMZ and Firewalls in a Web Deployment .................................................................................... 479
Integrating Web Deployments with Data Stores ......................................................................................... 480
Using WebLogic Server Clustering in a Web Deployment......................................................................... 481
Web Application Deployment Details......................................................................................................... 487
Application Deployments ........................................................................................................................... 489
Mixed Deployments .................................................................................................................................. 491
Application Deployment Process ............................................................................................................... 493
Best Practices for Deploying WebLogic Server.......................................................................................... 498
Chapter 14. The WebAuction Application .................................................................................. 501
Application Architecture and Design: WebAuction.............................................................................. 501
Business Logic Design ............................................................................................................................... 509
Changes Required for a Production Application......................................................................................... 513
Assembling the Application Components: WebAuction............................................................................. 514
Quick Deployment of the WebAuction Application................................................................................... 519
Deploying the WebAuction Application: In Detail ..................................................................................... 520
Deploying the WebAuction on Another Database ...................................................................................... 541
Testing the WebAuction Application .......................................................................................................... 544
Chapter 15. Capacity Planning for the WebLogic Server.......................................................... 561
Analysis of Capacity Planning.................................................................................................................... 561
Methodology and Metrics for Capacity Planning ....................................................................................... 562
Capacity Planning Best Practices ............................................................................................................... 571
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