WebLogic Server 10.3 WLST脚本编程学习资源指南

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Oracle WebLogic Server是一款强大的企业级应用服务器，它支持JavaEE规范，被广泛用于构建、部署和管理大型分布式应用程序。在这个资源中，主要关注的是WebLogic Scripting Tool (WLST)，它是Oracle官方提供的一款用于自动化管理WebLogic Server的脚本工具，特别适合于10g Release 3（10.3）版本。 WLST是基于Java的命令行工具，通过Java API与WebLogic Server进行交互，使得管理员能够无需图形用户界面（GUI）即可执行复杂的管理任务。例如，可以使用WLST进行部署应用、配置服务器设置、监控性能、管理和维护集群等操作，极大地提高了运维效率。这个资源的学习资料对于希望深入理解和掌握WebLogic Server管理的IT专业人员来说非常实用。在使用WLST时，需要注意版权问题。所有软件和相关文档都受Oracle及其关联公司的版权保护，并且受限于许可协议中的使用和披露限制。除非在协议中有明确允许或法律允许，否则禁止未经许可的复制、修改、分发、展示等行为。此外，对软件的逆向工程、拆解或反编译也受到限制，除非法律要求为了兼容性目的而进行。资料中提到的信息可能会随时更新，不保证无误，用户在使用过程中如果发现错误，应以书面形式报告给Oracle。如果此软件或文档是通过美国政府或代表其进行授权的，那么用户需要了解相关的美国政府权利条款，即该软件可能受到《联邦政府所有权条款》的约束，意味着政府有权获取软件的衍生作品和改进。学习和掌握WLST是提升WebLogic Server管理能力的重要环节，对于提升工作效率和确保系统的稳定运行有着关键作用。通过这个资源，学习者可以系统地学习如何编写脚本，如何利用WLST进行高效运维，以及如何处理可能遇到的版权和法律问题。

Introduction and Roadmap

1-6 WebLogic Scripting Tool

Using the WebLogic Scripting Tool

2-2 WebLogic Scripting Tool

offline). For information about the WebLogic Server Administration Console, see Administration

Console Online Help. For information about the Configuration Wizard, see Creating WebLogic

Domains Using the Configuration Wizard.

Using WLST Online

You can use WLST to connect to a running Administration Server and manage the configuration

of an active domain, view performance data about resources in the domain, or manage security

data (such as adding or removing users). You can also use WLST to connect to Managed Servers,

but you cannot modify configuration data from Managed Servers.

WLST online is a Java Management Extensions (JMX) client. It interacts with a server’s

in-memory collection of Managed Beans (MBeans), which are Java objects that provide a

management interface for an underlying resource. For information on WebLogic Server MBeans,

see Understanding WebLogic Server MBeans in Developing Custom Management Utilities with

JMX.

Using WLST Offline

Without connecting to a running WebLogic Server instance, you can use WLST to create domain

templates, create a new domain based on existing templates, or extend an existing, inactive

domain. You cannot use WLST offline to view performance data about resources in a domain or

modify security data (such as adding or removing users).

WLST offline provides read and write access to the configuration data that is persisted in the

domain’s

config directory or in a domain template JAR created using Template Builder. The

schemas that define a domain’s configuration document are in the following locations:

z http://www.bea.com/ns/weblogic/920/domain.xsd

z http://www.bea.com/ns/weblogic/90/security.xsd

z http://www.bea.com/ns/weblogic/weblogic-diagnostics/1.1/weblogic-diagnos

tics.xsd

z In JAR files under WL_HOME/server/lib/schema, where WL_HOME is the directory in

which you install WebLogic Server. Within this directory:

– The

domain.xsd document is represented in the weblogic-domain-binding.jar

under the pathname

META-INF/schemas/schema-1.xsd.

– The

security.xsd document is represented in the weblogic-domain-binding.jar

under the pathname

META-INF/schemas/schema-0.xsd.

Interactive Mode, Script Mode, and Embedded Mode

WebLogic Scripting Tool 2-3

– The weblogic-diagnostics.xsd document is represented in the

diagnostics-binding.jar under the pathname

META-INF/schemas/schema-0.xsd.

Note the following restrictions for modifying configuration data with WLST offline:

z Oracle recommends that you do not use WLST offline to manage the configuration of an

active domain. Offline edits are ignored by running servers and can be overwritten by JMX

clients such as WLST online or the WebLogic Server Administration Console.

z As a performance optimization, WebLogic Server does not store most of its default values

in the domain’s configuration files. In some cases, this optimization prevents management

objects from being displayed by WLST offline (because WebLogic Server has never

written the corresponding XML elements to the domain’s configuration files). For example,

if you never modify the default logging severity level for a domain while the domain is

active, WLST offline will not display the domain’s

Log management object.

If you want to change the default value of attributes whose management object is not

displayed by WLST offline, you must first use the

create command to create the

management object. Then you can

cd to the management object and change the attribute

value. See “create” on page B-49.

Interactive Mode, Script Mode, and Embedded Mode

You can use any of the following techniques to invoke WLST commands:

z Interactively, on the command line—“Interactive Mode”

z In batches, supplied in a file—“Script Mode”

z Embedded in Java code—“Embedded Mode”

Interactive Mode

Interactive mode, in which you enter a command and view the response at a command-line

prompt, is useful for learning the tool, prototyping command syntax, and verifying configuration

options before building a script. Using WLST interactively is particularly useful for getting

immediate feedback after making a critical configuration change. The WLST scripting shell

maintains a persistent connection with an instance of WebLogic Server.

WLST can write all of the commands that you enter during a WLST session to a file. You can

edit this file and run it as a WLST script. For more information, see “startRecording” on

page B-89 and “stopRecording” on page B-91.

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