JCABI LOG framework profile and entry guide
JCABI LOG framework profile and entry guide
JCABI LOG is a Java -based open source log framework, which aims to make the log records of the application easier and flexible.It provides a simple API that allows developers to easily add a logging function to the application.
The following is an entry guide to use the JCABI LOG framework:
1. Add jcabi log dependency
First, you need to add JCABI LOG to your project.You can build tools through Maven or Gradle and other constructive tools to add the following dependencies in the project's pom.xml or Build.gradle file:
Maven:
<dependency>
<groupId>com.jcabi</groupId>
<artifactId>jcabi-log</artifactId>
<version>0.14.1</version>
</dependency>
Gradle:
groovy
implementation 'com.jcabi:jcabi-log:0.14.1'
2. Configure log recorder
Create a class and configure the log recorder.You can choose different implementations, such as ConsoleLogger (output the log to the console) or SLF4Jlogger
import com.jcabi.log.Logger;
import com.jcabi.log.LoggerOptions;
import com.jcabi.log.slf4j.Slf4jLogger;
public class MyApp {
private static final Logger LOGGER = new Logger.Default(
new Slf4jLogger()
);
public static void main(String[] args) {
// Configure the option of the log recorder
LoggerOptions options = new LoggerOptions.Default()
.date()
.threads(true)
.level(Logger.LEVEL_DEBUG)
.prefix("MyApp");
// Set the option of the log recorder
LOGGER.setOptions(options);
// Start Log Record
Logger.info ("Application has started");
}
}
3. Add log records
Once a log recorder is configured, you can add a log record statement to the application.JCABI LOG provides different logs, such as Debug, Info, Warn, ERROR, etc.
public class MyApp {
private static final Logger LOGGER = new Logger.Default(
new Slf4jLogger()
);
public static void main(String[] args) {
// ...
// Add log records
Logger.debug ("This is a log record of Debug level");
Logger.info ("This is an info -level log record");
Logger.warn ("This is a narn -level log record");
Logger.error ("This is a log record of ERROR level");
}
}
4. Advanced usage
In addition to the basic log record function, the JCABI LOG also provides some other advanced functions, such as format logo messages, capture abnormalities and records.
import com.jcabi.log.Logger;
import com.jcabi.log.VerboseRunnable;
public class MyApp {
private static final Logger LOGGER = new Logger.Default(
new Slf4jLogger()
);
public static void main(String[] args) {
// ...
// Format log message
Logger.debug ("User {} Login success", "John.doe");
// Capture abnormal and record
try {
// Execute some operations that may cause abnormalities
} catch (Exception e) {
Logger.error ("Failure of operation", e);
}
// Record method execution time
Logger.info ("Method execution time: {} milliseconds", logger.timing (() -> {
// Add code to time here
Thread.sleep(1000);
return null;
}));
}
}
Through the above -mentioned entry guide, you should be able to start using the JCABI LOG framework to add a logging function to your Java application.It provides a simple and flexible API that allows you to easily record and manage log messages.
