用 slf4j.Logger 打印日志

在pom.xml加入依赖

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>${slf4j.version}</version>
</dependency>

Demo.java

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class Demo{
	private static final Logger logger = LoggerFactory.getLogger(Demo.class);
	
	public void loggerDemo(Integer code) {
        try {
            logger.info("accept:=========命令为：{}", code);
        } catch (Exception var2) {
            logger.error("error:============0x:" + code);
            var2.printStackTrace();
        }
    }
}