<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-web</artifactId>
<version>2.14.1</version>
</dependency>
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
</Console>
</Appenders>
<Loggers>
<Root level="info">
<AppenderRef ref="Console" />
</Root>
</Loggers>
</Configuration>
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.logging.LogLevel;
import org.springframework.boot.logging.LoggingSystem;
import org.springframework.context.annotation.Bean;
@SpringBootApplication
public class MyApp {
@Bean
public LoggingSystem loggingSystem() {
return LoggingSystem.get(getClass().getClassLoader());
}
public static void main(String[] args) {
SpringApplication.run(MyApp.class, args);
}
}
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class MyController {
private static final Logger logger = LogManager.getLogger(MyController.class);
@GetMapping("/")
public String home() {
logger.info("Hello, Log4j!");
return "Hello, Log4j!";
}
}
