About This Document

Intended Audience

This guide describes the components of JEUS web engines, and how to use and monitor them. It is intended for system administrators and developers who deploy and manage Java EE web modules.

Required Knowledge

Users should have the following knowledge to fully understand this guide.

Java EE, servlets, JSPs, and the WebSocket standard

Web application packaging and deployment

JEUS architecture

Note

For more information about JEUS web technologies, refer to "JEUS Server Guide", and if necessary, refer to "JEUS Web Service Guide".

Document Scope

This guide does not contain information about Java EE. It only covers information about JEUS.

Note

Refer to http://www.oracle.com/technetwork/java/index.html for detailed information.

Document Organization

This guide consists of nine chapters.

"Chapter 1. JEUS Web Engines"

Describes the components and major functions of JEUS web engines and how to configure them.

"Chapter 2. Web Connection Management"

Describes how to manage and set listeners and connectors provided by the web engine.

"Chapter 3. Web Contexts"

Describes how to package, deploy, and monitor JEUS web applications.

"Chapter 4. JSP Engine"

Describes the concepts, functions, and configurations of the JSP engine.
"Chapter 5. Virtual Hosts"

Describes the basic concepts, rules, and configurations of virtual hosts.
"Chapter 6. WebSocket Container"

Describes the concepts, functions, and configurations of the WebSocket container.

"Chapter 7. JEUS WebCache"

Describes how to use JEUS WebCache to improve the web application performance.
"Chapter 8. Reverse Proxy"

Describes the basic concepts of a reverse proxy and how to use a reverse proxy to improve the web application performance.
"Chapter 9. Reloading Classes at Runtime"

Describes servlet auto reloading that helps reduce the web application development time.
"Chapter 10. Practice"

Describes the steps that allow the user to easily become familiar with JEUS.

Conventions

Convention	Meaning
<<AaBbCc123>>	Filename of a program
<Ctrl>+C	Hold the Control key and press C
[Button]	Button or Menu name
Boldface	Emphasis
" "(double quotes)	Reference to chapters or sections in the manual, or to other related documentation
'Input Item'	Description for an input item on the screen
`Hyperlink`	E-mail account, website, link to other chapters or sections
>	Progress order of menus
+----	Files or directories exist below
\|----	Files or directories do not exist below
Note	Reference or note
Caution	Caution
[Figure 1.1]	Figure name
[Table 1.1]	Table name
AaBbCc123	Java codes and XML documents
`[ command argument ]`	Optional parameter
< xyz >	The contents between '<' and '>' will be changed to an actual value.
\|	Selective argument. e.g. A\|B: either A or B
…	Repetitive parameters, etc.

System Requirements

This guide follows the UNIX style for all examples and screen configurations.

Users of other environments, such as Windows, can use this with a few considerations. For example, use the Windows style "\" as the directory delimiter instead of the UNIX style "/". Environment variables should also be changed to Windows style variables.

This guide primarily discusses Java, so most of the content should apply to all systems.

Guide	Description
JEUS Server Guide	Describes overview of the JEUS system and server, and system management.
JEUS Web Service Guide	Describes Web services used within JEUS.
JEUS WebAdmin Guide	Describes how to use WebAdmin (JEUS's Web management tool) for configuring, controlling, monitoring, and clustering JEUS, and for resource configuration and management.
JEUS Session Management Guide	Describes how to configure and manage Session Manager and Session Server in JEUS.
JEUS Reference Book	Describes references for using JEUS.

References

Java EE 6 specification
Servlet 3.0 specification
JSP 2.2 specification (JSR 245 Maintenance Release)
EL 2.2 specification (JSR 245 Maintenance Release)

XML Reference in JEUS_HOME/docs/reference/schema/index.html

Describes web engine settings.

Web/servlet engines of domain.xml

Encodings in web engines of domain.xml

JSP engines in web engines of domain.xml

Web connections in web engines of domain.xml (Web listener and server connections)

Sessions in web engines of domain.xml

Virtual hosts in web engines of domain.xml

The jeus-web-dd.xml chapter in JEUS_HOME/docs/reference/schema/index.html

Describes JEUS context (web application) deployment descriptors.