WLST

This document describes the WebLogic Scripting Tool (WLST). It explains how you use the WLST command-line scripting interface to configure, manage, and persist changes to WebLogic Server instances and domains, and monitor and manage server runtime events.

The WebLogic Scripting Tool (WLST) is a command-line scripting environment that you can use to create, manage, and monitor WebLogic Server domains. It is based on the Java scripting interpreter, Jython. In addition to supporting standard Jython features such as local variables, conditional variables, and flow control statements, WLST provides a set of scripting functions (commands) that are specific to WebLogic Server. You can extend the WebLogic scripting language to suit your needs by following the Jython language syntax. See http://www.jython.org.

Using WLST Online or Offline
You can use WLST as the command-line equivalent to the WebLogic Server Administration Console (WLST online) or as the command-line equivalent to the Configuration Wizard (WLST offline). For information about the WebLogic

WLST Online Scripts

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

The WLST online scripts helps to perform administrative tasks and initiate WebLogic Server configuration changes while connected to a running server. WLST online scripts are located in the following directory: SAMPLES_HOME\server\examples\src\examples\wlst\online, where SAMPLES_HOME refers to the main examples directory of your WebLogic Server installation, such as c:\beahome\wlserver_10.3\samples.

WLST Offline Scripts
The WLST offline scripts helps to create domains using the domain templates that are installed with the software. The WLST offline scripts are located in the following directory: WL_HOME\common\templates\scripts\wlst, where WL_HOME refers to the top-level installation directory for WebLogic Server

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


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

■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.
■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