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Chapter 1 Welcome to JRun
Web services
JRun lets you publish and consume web services. Web services provide platform- and
location-independent computing using XML and standard Internet protocols such as
HTTP. By allowing previously incompatible applications to interoperate over the web,
regardless of language, platform, or operating system, web services create new business
opportunities and help companies adapt to changing business relationships. For example,
a Microsoft .NET component can communicate with a J2EE component, such as an
Enterprise JavaBean (EJB).
Using JRun, you can reuse existing Java code as a web service, or write new code
specifically to publish as a web service. You also can create object- and tag-based clients
that can invoke methods on remote web services, even when those services reside on
non-Java platforms.
The JRun web services implementation is built on Apache Axis, the third generation of
the Apache Software Foundation’s Simple Object Access Protocol (SOAP) engine. For
more information, see JRun Programmer’s Guide.
For more information on JRun 4 features, see the Release Notes in jrun_root/
relnotes.htm.
World music
An e-commerce application that sells music. This application also
contains an admin module. The world music application illustrates
many common design patterns using JSP, servlet, and JavaBean
programming. The world music sample application uses the
worldmusic database, accessing it directly through JDBC.
Web services
Programming techniques used in JRun web services
programming.
Programming
techniques
Programming techniques described in this book. The techniques
application uses the samples database, accessing it through the
samples data source, which you can view through the JMC.
Flash gateway
Flash movies and Flash Gateway adapters, which illustrate how to
write Flash applications that communicate with JRun.
SmarTicket
A Java Blueprints J2ME application. The SmarTicket application
illustrates how the J2EE platform interoperates with the Java 2
Micro Edition (J2ME) platform to create enterprise applications
that serve mobile client devices, such as cell phones, two-way
pagers, and palmtops.
The SmarTicket application uses the smarticket database,
accessing it through the smarticket data source, which you can
view through the JMC.
Java PetStore
A Java Blueprints J2EE application that shows how to use the
capabilities of the J2EE 1.3 platform to develop a typical
e-commerce application, which can take and process orders and
credit card information, manage user logins, shipping information,
and shopping cart sessions.
Application
Description
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