Preface

This document describes how to use WebLogic Server logging services to monitor application events. It describes WebLogic support for internationalization and localization of log messages, and shows you how to use the templates and tools provided with WebLogic Server to create or edit message catalogs that are locale-specific.

Audience

This document is a resource for Java Platform, Enterprise Edition (Java EE) application developers who want to use WebLogic message catalogs and logging services as a way for their applications to produce log messages and want to integrate their application logs with WebLogic Server logs. This document is relevant to all phases of a software project, from development through test and production phases.

This document does not address how you configure logging, subscribe to and filter log messages. For links to information on these topics, see Related Documentation.

It is assumed that the reader is familiar with Java EE and Web technologies, object-oriented programming techniques, and the Java programming language.

Documentation Accessibility

For information about Oracle's commitment to accessibility, visit the Oracle Accessibility Program website at http://www.oracle.com/pls/topic/lookup?ctx=acc&id=docacc.

Access to Oracle Support

Oracle customers that have purchased support have access to electronic support through My Oracle Support. For information, visit http://www.oracle.com/pls/topic/lookup?ctx=acc&id=info or visit http://www.oracle.com/pls/topic/lookup?ctx=acc&id=trs if you are hearing impaired.

Diversity and Inclusion

Oracle is fully committed to diversity and inclusion. Oracle respects and values having a diverse workforce that increases thought leadership and innovation. As part of our initiative to build a more inclusive culture that positively impacts our employees, customers, and partners, we are working to remove insensitive terms from our products and documentation. We are also mindful of the necessity to maintain compatibility with our customers' existing technologies and the need to ensure continuity of service as Oracle's offerings and industry standards evolve. Because of these technical constraints, our effort to remove insensitive terms is ongoing and will take time and external cooperation.

Related Documentation

The corporate Web site provides all documentation for WebLogic Server. Specifically, View and configure logs in the Oracle WebLogic Server Administration Console Online Help describes configuring log files and log messages that a WebLogic Server instance generates, and Configuring WebLogic Logging Services in Configuring Log Files and Filtering Log Messages for Oracle WebLogic Server describes configuring WebLogic Server to write messages to log files, filtering message output, and listening for the log messages that WebLogic Server broadcasts.

For general information about internationalization and localization, refer to the following sources:

The Java Developer Connection at http://www.oracle.com/technetwork/java/index.html
The Internationalization section of the World Wide Web Consortium (W3C) Web Site at http://www.w3.org

Logging Samples and Tutorials

In addition to this document, we provide a variety of logging code samples and tutorials that show logging configuration and API use.

Avitek Medical Records Application (MedRec) and Tutorials

MedRec is an end-to-end sample Java EE application shipped with WebLogic Server that simulates an independent, centralized medical record management system. The MedRec application provides a framework for patients, doctors, and administrators to manage patient data using a variety of different clients.

MedRec demonstrates WebLogic Server and Java EE features, and highlights recommended best practices. MedRec is optionally installed with the WebLogic Server installation. You can start MedRec from the ORACLE_HOME\user_projects\domains\medrec directory, where ORACLE_HOME is the directory you specified as the Oracle Home when you installed Oracle WebLogic Server. For more information, see Sample Applications and Code Examples in Understanding Oracle WebLogic Server.

Logging Examples in the WebLogic Server Distribution

WebLogic Server optionally installs API code examples in ORACLE_HOME\wlserver\samples\server, where ORACLE_HOME represents the directory in which you installed WebLogic Server. For more information, see Sample Applications and Code Examples in Understanding Oracle WebLogic Server.

Internationalizing Applications Using Simple Message Catalogs Example

This example shows various methods for displaying localized text using simple message catalogs. Using any of the languages supported by the example requires the appropriate operating system localization software and character encoding. The package that contains this example is:

java
                examples.i18n.simple.HelloWorld [lang [country]]

where lang is a two-character ISO language code (for example, en for English) and country is a two-character ISO country code (for example, US for the United States).

The files are located in ORACLE_HOME\wlserver\samples\server\examples\src\examples\i18n\simple, where ORACLE_HOME represents the directory in which you installed WebLogic Server. For more information, see Sample Applications and Code Examples in Understanding Oracle WebLogic Server.

New and Changed WebLogic Server Features

For a comprehensive listing of the new WebLogic Server features introduced in this release, see What's New in Oracle WebLogic Server.

Conventions

The following text conventions are used in this document:

Convention	Meaning
boldface	Boldface type indicates graphical user interface elements associated with an action, or terms defined in text or the glossary.
italic	Italic type indicates book titles, emphasis, or placeholder variables for which you supply particular values.
`monospace`	Monospace type indicates commands within a paragraph, URLs, code in examples, text that appears on the screen, or text that you enter.