Enterprise Java(TM) Servlets

by Genender, Jeff M.

• ISBN13: 9780201709216
• ISBN10: 020170921X
• Edition: CD
• Format: Paperback w/CD
• Copyright: 2002-01-01
• Publisher: Addison-Wesley Professional

Summary

This is not a beginner's guide: it's an enterprise developer's guide to building industrial-strength servlets. Jeff Genender shows exactly how to dramatically improve servlet performance, reliability, and scalability, while simplifying coding and maintenance in large-scale development environments. This book brings together in-depth tutorials, case studies, and reference materials for advanced real-world servlet development. It draws heavily on the author's own experience in developing servlet architectures from scratch and transforming inferior servlet applications into stable, reliable software. Among the topics covered: creating a reusable base servlet architecture that accelerates development and streamlines maintenance; improving error handling; establishing processes that allow multiple developers to work on the same server projects; and using servlets in sophisticated load balancing and fault tolerance applications. For all enterprise developers working with servlets and related technologies, and for Web developers who need to replace their current server-side technologies with a more powerful solution.

Table of Contents

Preface	xiii
Introduction to Enterprise Servlets	1	(38)
Developing Servlets and Servlet Containers	2	(5)
Setting Up and Running Servlets	3	(1)
Registering Servlets with the Servlet Container	4	(2)
What You Need	6	(1)
The Base Enterprise Servlet	7	(11)
The Single-Servlet Approach	14	(1)
Base Enterprise Servlet Basics	14	(4)
Implementation of a Base Servlet	18	(17)
The Class. for Name () Method	24	(7)
The Http Method Class	31	(1)
The ConfFile Class	32	(2)
The Method List Class	34	(1)
Sample Application	35	(2)
Summary	37	(2)
AppContext: Managing Applications	39	(32)
The Configuration File Revisited	41	(1)
The AppContext Object	42	(7)
Restructuring BaseEnterpriseServlet	49	(7)
A Two-Application Example	56	(7)
Forcing Uniqueness across Applications: AppManager	63	(6)
Summary	69	(2)
Forms, State, and Session Management	71	(46)
HTTP Forms: A Review	72	(14)
The <FORM> Tag	72	(3)
Packaging the Query with GET and POST	75	(2)
HTTP Forms and Enterprise Servlets	77	(2)
Form and HTML Development in the Enterprise	79	(7)
Maintaining State with Sessions in the Enterprise	86	(7)
Standard Servlet Architecture and Sessions	90	(3)
The Enterprise Session	93	(10)
Session and Form Example with Multiple Applications	103	(11)
Summary	114	(3)
HTML with Templates	117	(52)
Using Templates	118	(2)
JSP as a Template Engine	119	(1)
Developing a Template Engine	120	(23)
The HTML Template Object	126	(8)
Templates with Enterprise Servlets	134	(2)
Nesting Templates	136	(7)
Making the Template Engine Scream: Caching Templates	143	(23)
Building the Template Cache	146	(11)
Integrating the Template Objects and Cache into Enterprise Servlets	157	(6)
Using the Template Cache in Enterprise Servlets	163	(3)
Summary	166	(3)
Logging and Error Handling	169	(44)
Logging in a Servlet Engine	169	(6)
Anomalies of a Servlet Engine Log File	171	(1)
Components of a Standardized Log File	172	(3)
The EnterpriseLog Object	175	(13)
Logging in Enterprise Servlets	188	(7)
A Logging Example	195	(6)
Error Handling	201	(9)
The DefaultError Handler Object	204	(4)
The Logger Application with Error Handling	208	(2)
Summary	210	(3)
Security	213	(26)
Types of Security	213	(3)
Web Authentication	216	(12)
Under the Hood	218	(2)
Customizing Web Authentication	220	(3)
An Example Using Pluggable Security Components	223	(5)
Form-Based Authentication	228	(8)
Integrating Form-Based Authentication into Enterprise Servlets	230	(6)
Summary	236	(3)
Pools	239	(34)
What Is a Pool?	240	(2)
Using Pools in Web Development	242	(17)
The Base Pool Object	244	(9)
Using the Pool Object	253	(2)
Using the Pool: An Example	255	(4)
The Pool Anomaly	259	(11)
PoolList and PoolObject Manager	262	(7)
Using PoolList and PoolObjectManager: An Example	269	(1)
Summary	270	(3)
Database Connectivity	273	(44)
JDBC: A Quick Review	273	(5)
Loading the Driver and Connecting to the Database	274	(1)
The JDBC Statement and ResultSet Objects	275	(1)
The PreparedStatement and CallableStatement Objects	276	(1)
Transactions	277	(1)
Closing the Connection	278	(1)
Managing the Connection in a Server Environment	278	(3)
Understanding Connection Management	281	(3)
Building Connection Management	284	(10)
The JDBCManager Object	284	(3)
The SQL Cursor Object	287	(6)
The DBConnection Object	293	(1)
Using the Connection Management Objects	294	(3)
Database Pooling with the Connection Management Objects	297	(7)
Using the DBConnectionPool Object	300	(4)
Making the DBConnectionPool Object Easier to Create	304	(9)
The Name ValuePair Object	306	(1)
The DBPoolParser Object	307	(6)
Using DBPoolParser in Enterprise Servlets	313	(1)
Summary	314	(3)
LDAP Connectivity	317	(34)
A Little History of LDAP	318	(1)
How LDAP Works	318	(3)
Distinguished Names	320	(1)
Advantages and Disadvantages of LDAP	320	(1)
LDAP with Java: The JNDI	321	(6)
Connecting to LDAP	321	(1)
Searching LDAP for Values	322	(3)
Sorting Results	325	(1)
Adding and Removing an Entry	325	(2)
Modifying Attributes within an Entry	327	(1)
Closing the LdapContext Object	327	(1)
LDAP Considerations in a Server Application	327	(2)
Building the LDAP Connection Management Objects	329	(11)
The LDAPManager Object	330	(7)
The LDAPConnection Object	337	(1)
Using the LDAP Connection Management Objects	338	(2)
The LDAPConnectionPool Object	340	(3)
Putting the Connection Management Objects to Use	343	(6)
Summary	349	(2)
Dynamic Graphics	351	(24)
How a Browser Requests Images	352	(2)
Handling Image Types	354	(1)
Dynamic Images	355	(5)
Memory Management	360	(4)
Creating Objects Is Your Worst Enemy	361	(1)
Pooling Memory Buffers	361	(3)
Random Pie Chart Example	364	(9)
Summary	373	(2)
Using JSP with Enterprise Servlets	375	(44)
Is There a Preference?	375	(1)
JSPs with Servlets	376	(32)
JSPs and Enterprise Servlets	384	(1)
Releasing BaseEnterpriseServlet's Grip on AppContext	385	(3)
Tapping into Enterprise Servlets	388	(1)
A Quick Look at the Java Tag Library	389	(6)
Bridging JSPs to Enterprise Servlets	395	(9)
Using the ESBridge Tag Library	404	(4)
Accessing the EnterpriseSession Object	408	(9)
Using the <ESSession> Tag	413	(2)
Handling Errors	415	(2)
Summary	417	(2)
Taking Enterprise Servlets Further	419	(12)
Web Server Startup in a Multiapplication Environment	419	(9)
Enhancements for the Reader	428	(3)
The Template Engine	428	(1)
Database and LDAP Pools	428	(1)
An Administrative Tool	429	(1)
A Pager or E-Mail Monitor	429	(1)
Anything You Want	429	(2)
Bibliography	431	(2)
Index	433