Beginning Spring Framework 2

The Spring Framework is designed from the ground up to make it easier than ever to develop server-side applications with Java Enterprise Edition. With this book as your guide, you’ll quickly learn how to use the latest features of Spring 2 and other open-source tools that can be downloaded for free on the web. With each subsequent chapter, you’ll explore an area of Spring application design and development as you walk through the steps involved in building a larg production-scale example.

Table of Contents:
Acknowledgments x Introduction xix Chapter 1: Jump Start Spring 2 1 All About Spring 2 Focus on Simplicity 2 Applying Spring 2 Creating a Modularized Application 3 Using Spring to Configure a Modularized Application 8 Wiring Beans Automatically by Type 14 Understanding Spring’s Inversion of Control (IoC) Container 16 Adding Aspect-Oriented Programming to the Mix 20 Adding a Logging Aspect 21 Beyond Plumbing — Spring API Libraries 25 Using Spring APIs To Facilitate Application Creation 26 Summary 27 Chapter 2: Designing Spring Applications 29 Overview of the PIX Album-Management System 30 The PIX System Requirements 31 Discovering the Domain Model 33 The PixUser POJO 33 The Affiliate POJO 35 The Picture Object 36 The Album POJO 37 The Comment POJO 38 The POJO Relationships 39 The Importance of Unit Testing 45 POJO-Based Design and Containerless Unit Testing 46 Regression Testing 46 Working with a Unit-Testing Framework 47 Summary 52 Chapter 3: Spring Persistence Using JPA 53 Java Persistence 54 JDBC Architecture 54 Traditional JDBC Approach 56 DAO — Unifying Data Access 64 Spring DAO Support 64 Spring Exception Translation 73 Spring and JPA 74 Entities 74 Spring as a JPA Container 81 About JPA APIs 81 JPA the Easy Way — Using Annotations 81 SPRING JPA Exception Translation 82 SPRING JPA DAOs 83 Spring JPA Configuration 84 Persistence and the PIX Domain Model 87 Persisting The PixUser POJO 87 Implementing PixUser Repository DAO 89 Implementing the Album Repository DAO 90 Testing the Persistence Layer 91 Spring Test Support 92 Executing the Persistence Test Suite 92 Testing the PIX Repositories 92 Summary 93 Chapter 4: Using Spring MVC to Build Web Pages 95 The MVC Architectural Pattern 95 The Sample Application’s Architecture 96 Spring MVC Development 99 Processing Web Requests with Controllers 99 Presenting the Model with a View 105 Getting Data from the User with Forms 109 A Basic Form-Submission Workflow 109 Using the Form View 112 When Things Go Wrong 123 Summary 124 Chapter 5: Advanced Spring MVC 125 Submitting a Form Across Multiple Pages 126 Adding Pictures to an Album 126 Developing Wizard Form Pages 127 Implementing Wizard Form Actions 131 Validating Data Submitted Through a Wizard 132 Uploading Files 133 Getting More Stuff Done with the Same Controller 134 Creating a Different View 137 Your First View 138 Saving an Album to PDF 139 Generating an RSS Feed 142 Personalization 146 Retrieving Text Labels from a Message Source 146 Displaying Application Labels in a Different Language 148 Changing the Application’s Language Settings 150 Allowing the User to Personalize the Application 151 Summary 154 Chapter 6: Spring Web Flow 155 Examining a Sample Work Flow for Loan Applications 156 Introducing Spring Web Flow 157 How SWF Works with Spring MVC 158 Launching Flows 159 Implementing SWF in the PixWeb Application 161 The Login Flow 161 The Album Creation Flow 176 Implementing Actions 178 Implementing Views 181 Testing Flows 183 Architectural Overview 185 Advanced Topics 186 REST-Style URLs 187 Flow Execution Repositories 188 Flow Execution Repository Implementations 189 Subflows and Attribute Mappers 189 Flow Execution Listeners 189 Exception Handlers 190 Summary 190 Chapter 7: Ajax and Spring: Direct Web Remoting Integration 191 Web 2.0: The World of Ajax 192 Ajax Basics 192 Client-Side Ajax Development with JavaScript 194 The XMLHttpRequest Object 194 Introducing Direct Web Remoting 2 199 Downloading DWR 2 201 Working with DWR 2 202 Integrating Spring and DWR 2 210 Summary 229 Chapter 8: Spring and JMS — Message-Driven POJOs 231 JMS Concepts 232 JMS Messaging Domains 232 Point-To-Point Messaging 232 Publish/Subscribe Messaging 233 Persistence versus Durability 234 The JMS Message 234 Message Header 234 Message Properties 235 Message Selectors 235 Message Body 235 Producing JMS Messages 236 Consuming JMS Messages 236 Synchronous Message Consumption 236 Asynchronous Message Consumption 237 The Spring JMS Framework 238 The Spring JMS Packages 238 The JmsTemplate Class 239 Message Listener Containers 240 Destinations 241 Transactions 241 Configuring Message-Driven POJOS 241 Realizing the JMS Use Case 242 Modeling Message-Driven POJOs 242 The PIX Web POJOS 242 Changing the PIX Web POJOs Into Message-Driven POJOs 245 A JMS Provider — Apache ActiveMQ 247 The JMS Template in the PIX Web Application 253 Summary 256 Chapter 9: Spring Web Services and Remoting 259 Web Service Benefits 260 Introducing Web Services 260 Web Services Architecture 261 The Network Layer 261 XML 261 SOAP 262 WSDL 262 UDDI 264 Web Services Interactions 265 Web Services Interoperability 266 Java Web Service Technologies 266 Java Web Application Web Services 266 Spring Remoting 268 SOAP Frameworks 268 Java-to-XML Bindings 269 XFire 269 Spring Web Services with XFire 270 Realizing the PIX AffiliateManagement Use Case 270 Invoking Web Services 277 SOAP Handlers 278 Testing SOAP Handlers with XFire 278 Summary 284 Chapter 10: Web Service Consumer and Interoperation with .NET 285 Creating Web Service Consumers — Overview 286 Describing Web Services with WSDL 286 Creating a Web Service Consumer with XFire 287 The XFire Maven Plugin 287 Invoking Web Service Methods via XFire-Generated Stubs 287 Understanding the E-Mail-Validation Web Service Consumer in PIX 288 Examining a WSDL Document 290 WSDL Description of a Web Service Endpoint 291 Generating Web Service Stubs from WSDL Using XFire 292 The XFire WsGen Tool 294 Generated Interface for Invocation of Web Service 295 Creating a Web Service Consumer with XFire-Generated Stubs 295 Add a Web Service Consumer to PIX 300 Web Service Interoperability 304 WS-I and Web Service Interoperability 304 Expose PIX Service for .NET Web Service Consumers 304 Summary 313 Chapter 11: Rapid Spring Development with Spring IDE 315 Brief Feature Overview 316 Installing and Setting Up Your Eclipse Environment 317 Installing Spring IDE 317 Preparing an Eclipse Project 319 Support for Spring Beans Configuration Files 325 Viewing Spring Bean Definitions 325 Validating Spring Bean Definition Files 328 XML Editing 332 Searching for and Navigating to Bean Definitions 335 Visual Support for Spring AOP Configurations 337 Enabling AOP Support for Spring Projects 338 Working with Spring IDE’s AOP Support 339 Integration with the AspectJ Development Tools 343 Web Flow Development with Spring IDE 344 Setting Up Your Spring Web Flow Project 344 Validating Spring Web Flow Definition Files 348 Editing Spring Web Flow Definition Files 350 Graphical Editor for Web Flow Definitions 351 Summary 353 Chapter 12: Spring AOP and AspectJ 355 Comparing Aspect-Oriented Programming to Object-Oriented Programming 355 What Is AOP? 357 Crosscutting Concerns 357 AOP in Spring 361 XML Schema-Based Support 362 The AOP Namespace Explored 362 Advice Parameters 367 AspectJ Support 368 @AspectJ Explored 368 @AspectJ-Style Advice 372 Performance Monitoring with AOP and JETM 376 Summary 379 References 380 Chapter 13: More AOP: Transactions 381 Understanding Transactions 382 Understanding Spring Transaction Management 383 Spring Transaction Abstraction 384 Applying AOP to Transactions 387 Adding Spring Transaction Support to PIX 38 Selecting the Transaction Manager 389 Coding Spring Transactions 397 Global Transactions 405 Summary 406 Appendix A: Maven 2 Basics 407 Appendix B: Spring and Java EE 439 Appendix C: Getting Ready for the Code Examples 451 Index 453

About the Author :
Thomas Van de Velde has extensive experience developing high-traffic public-facing web sites across a wide range of industries. As a consultant and project manager for one of the leading global technology consulting firms, he has worked on delivering the French online tax declaration and one of the United States’ largest sports sites. Thomas is passionate about finding ways to leverage open source in the enterprise, and in his free time tries to catch a wave in southern California where he lives with his wife and daughter. Bruce Snyder is a veteran of enterprise software development and a recognized leader in open-source software. Bruce has experience in a wide range of technologies including Java EE, messaging, and serviceoriented architecture. In addition to his role as a principal engineer for IONA Technologies, Bruce is also a founding member of Apache Geronimo and a developer for Apache ActiveMQ, Apache ServiceMix, and Castor, among other things. Bruce serves as a member of various JCP expert groups and is the co-author of Professional Apache Geronimo from Wrox Press. Bruce is also a frequent speaker at industry conferences, including the Colorado Software Summit, TheServerSide Java Symposium, Java in Action, JavaOne, ApacheCon, JAOO, SOA Web Services Edge, No Fluff Just Stuff, and various Java users groups. Bruce lives in beautiful Boulder, Colorado with his family. Christian Dupuis is working for one of the world’s leading consulting companies and is a member of the Technical Architecture capability group. Christian has been working as a technical architect and implementation lead to design and implement multi-channel, mission-critical financial applications that leverage Spring and other open-source frameworks across all tiers. Christian is co-lead of the Spring IDE open-source project (http://springide.org), providing tool support for the Spring Portfolio. Sing Li (who was bitten by the microcomputer bug in the late 1970s) has grown up in the Microprocessor Age. His first personal computer was a $99 do-it-yourself Netronics COSMIC ELF computer with 256 bytes of memory, mail-ordered from the back pages of Popular Electronics magazine. A 25-year industry veteran, Sing is a system developer, open-source software contributor, and freelance writer specializing in Java technology and embedded and distributed systems architecture. He regularly writes for several popular technical journals and e-zines, and is the creator of the Internet Global Phone, one of the very first Internet phones available. He has authored and co-authored a number of books across diverse technical disciplines including Geronimo, Tomcat, JSP, servlets, XML, Jini, media streaming, device drivers, and JXTA. Anne Horton has worked in the software industry for 24 years as a software engineer, textbook technical editor, author, and Java architect. She currently works for Lockheed Martin and spends her weekends working with Sing Li (author) and Sydney Jones (editor) in developing bleeding-edge books such as this one. You can email her at abhorton@comcast.net. Naveen Balani works as an architect with IBM India Software Labs (ISL). He leads the design and development activities for the WebSphere Business Service Fabric product out of ISL. He likes to research upcoming technologies and is a regular contributor to IBM developer works covering such topics as web services, ESB, JMS, SOA, architectures, open-source frameworks, semantic web, J2ME, persuasive computing, the Spring series, AJAX, and various IBM products. You can e-mail him at naveenbalani@rediffmail.com. Thomas Van de Velde has extensive experience developing high-traffic public-facing web sites across a wide range of industries. As a consultant and project manager for one of the leading global technology consulting firms, he has worked on delivering the French online tax declaration and one of the United States’ largest sports sites. Thomas is passionate about finding ways to leverage open source in the enterprise, and in his free time tries to catch a wave in southern California where he lives with his wife and daughter. Bruce Snyder is a veteran of enterprise software development and a recognized leader in open-source software. Bruce has experience in a wide range of technologies including Java EE, messaging, and serviceoriented architecture. In addition to his role as a principal engineer for IONA Technologies, Bruce is also a founding member of Apache Geronimo and a developer for Apache ActiveMQ, Apache ServiceMix, and Castor, among other things. Bruce serves as a member of various JCP expert groups and is the co-author of Professional Apache Geronimo from Wrox Press. Bruce is also a frequent speaker at industry conferences, including the Colorado Software Summit, TheServerSide Java Symposium, Java in Action, JavaOne, ApacheCon, JAOO, SOA Web Services Edge, No Fluff Just Stuff, and various Java users groups. Bruce lives in beautiful Boulder, Colorado with his family. Christian Dupuis is working for one of the world’s leading consulting companies and is a member of the Technical Architecture capability group. Christian has been working as a technical architect and implementation lead to design and implement multi-channel, mission-critical financial applications that leverage Spring and other open-source frameworks across all tiers. Christian is co-lead of the Spring IDE open-source project (http://springide.org), providing tool support for the Spring Portfolio. Sing Li (who was bitten by the microcomputer bug in the late 1970s) has grown up in the Microprocessor Age. His first personal computer was a $99 do-it-yourself Netronics COSMIC ELF computer with 256 bytes of memory, mail-ordered from the back pages of Popular Electronics magazine. A 25-year industry veteran, Sing is a system developer, open-source software contributor, and freelance writer specializing in Java technology and embedded and distributed systems architecture. He regularly writes for several popular technical journals and e-zines, and is the creator of the Internet Global Phone, one of the very first Internet phones available. He has authored and co-authored a number of books across diverse technical disciplines including Geronimo, Tomcat, JSP, servlets, XML, Jini, media streaming, device drivers, and JXTA. Anne Horton has worked in the software industry for 24 years as a software engineer, textbook technical editor, author, and Java architect. She currently works for Lockheed Martin and spends her weekends working with Sing Li (author) and Sydney Jones (editor) in developing bleeding-edge books such as this one. You can email her at abhorton@comcast.net. Naveen Balani works as an architect with IBM India Software Labs (ISL). He leads the design and development activities for the WebSphere Business Service Fabric product out of ISL. He likes to research upcoming technologies and is a regular contributor to IBM developer works covering such topics as web services, ESB, JMS, SOA, architectures, open-source frameworks, semantic web, J2ME, persuasive computing, the Spring series, AJAX, and various IBM products. You can e-mail him at naveenbalani@rediffmail.com.