javalogging.pdf

Java Logging

Sang Shin

Java Technology Architect

Sang Shin

Java Technology Architect

Sun Microsystems, Inc.

sang.shin@sun.com

www.javapassion.com

Topics

• What is and Why Java logging?

• Architecture of Java logging framework

• Logging example

• Logging levels

• Loggers

• Handlers

• Formatters

• Configuration

• Logging and performance

What is & Why

Java Logging API?

What is & Why

Java Logging API?

What is a Java Logging API?

• Introduced in package java.util.logging

• The core package includes support for delivering

plain text or XML-formatted log records to memory,

output streams, consoles, files, and sockets. In

addition, the logging APIs are capable of interacting

with logging services that already exist on the host

operating system.

Why Use Java Logging API?

• Facilitate software servicing and maintenance at

customer sites by producing log reports suitable for

analysis by end users, system administrators, field

service engineers, and software development teams

> Capture information such as security failures, configuration

errors, performance bottlenecks, and/or bugs in the

application or platform