Configuration Guide of the Core Module of LOGBACK
LOGBACK is a powerful Java log framework, which consists of three core modules: logback-core, LOGBACK-ACCESS and LogBack-Classic.This article will introduce you to the configuration guide for the core module of the logback and provide some Java code examples.
1. First, you need to introduce logback dependencies in the project.You can add the following dependencies in Maven or Gradle constructing files:
Maven:
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>1.2.3</version>
</dependency>
Gradle:
groovy
dependencies {
implementation 'ch.qos.logback:logback-core:1.2.3'
}
2. Configure logback log output format.You can define the log format in a XML configuration file, such as `logback.xml`.The following is a simple configuration example:
<configuration>
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%date %level [%thread] %logger{10} [%file:%line] %msg%n</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="CONSOLE"/>
</root>
</configuration>
In this example, we created a novel output of the console called `Console` and defined a simple log format mode.The log level of the root recorder is set to `Info`, and associate the` Console` outputer to the root recorder.
3. Use LOGBACK in your Java code.You can use the `LoggerFactory` class to obtain an instance of` Logger`, and then print the log with this instance.The following is a simple example:
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MyClass {
private static final Logger LOGGER = LoggerFactory.getLogger(MyClass.class);
public void myMethod() {
LOGGER.debug("Debug message");
LOGGER.info("Info message");
LOGGER.warn("Warning message");
LOGGER.error("Error message");
}
}
In this example, we use `loggerFactory.getLogger ()` method to obtain a recorder instance named `MyClass`.Then we can print different levels of log messages with methods such as `logger.debug ()`, `logger.info ()`.
By configured and used according to the above steps, you will be able to better use the logback core module to record and manage the logs of the application.
I hope this article will help you understand the configuration guide of the core module of the logback.
