Maning in spring

SPRING
IN ACTION
Craig Walls
Ryan Breidenbach

MANNING

Spring in Action
CRAIG WALLS
RYAN BREIDENBACH

MANNING
Greenwich
(74° w. long.)

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Maisy Grace, see you soon
—C.W.

For my brother, Lee
—R.B.brief contents
PART 1 SPRING ESSENTIALS ........................................................ 1
1

■

A Spring jump start

2

■

Wiring beans

3

■

Creating aspects

3

42
91

PART 2 SPRING IN THE BUSINESS LAYER .............................. 131
4

■

Hitting the database

133

5

■

Managing transactions

6

■

Remoting

7

■

Accessingenterprise services

173

207
240

PART 3 SPRING IN THE WEB LAYER ....................................... 267
8

■

Building the web layer

9

■

View layer alternatives 319

10

■

Working with other web frameworks

11

■

Securing Spring applications 367

vii

269
346

contents
preface xvii
acknowledgments xx
about this book xxiii

PART 1 SPRING ESSENTIALS............................................... 1

1

A Spring jump start 3
1.1

Why Spring? 5
A day in the life of a J2EE developer

1.2

5

■

Spring’s pledge 6

What is Spring? 8
Spring modules

9

1.3

Spring jump start 12

1.4

Understanding inversion of control

15

Injecting dependencies 16 IoC in action
IoC in enterprise applications 23
■

1.5

16Applying aspect-oriented programming
Introducing AOP
enterprise 30

25

ix

■

AOP in action

27

25
■

AOP in the

x

CONTENTS

1.6

Spring alternatives 33
Comparing Spring to EJB 33 Considering other lightweight
containers 36 Web frameworks 38 Persistence
frameworks 40
■

■

1.7

2

Summary

■

40

Wiring beans 42
2.1

Containing your beans

44Introducing the BeanFactory 44
context 46 A bean’s life 47

■

Working with an application

■

2.2

Basic wiring 50
Wiring with XML 54 Adding a bean 55 Injecting
dependencies via setter methods 58 Injecting dependencies
via constructor 65
■

■

■

2.3

Autowiring

69

Handling ambiguities of autowiring 71 Mixing auto and
explicit wiring 72 Autowiring by default 72 Toautowire
or not to autowire 72
■

■

2.4

■

Working with Spring’s special beans

73

Postprocessing beans 74 Postprocessing the bean factory 76
Externalizing the configuration 78 Customizing property
editors 80 Resolving text messages 83 Listening for
events 85 Publishing events 86 Making beans aware 87
■

■

■

■

■

2.5

3

Summary

■

90

Creating aspects...