2.门面Slf4j+Simple简单实现

1.导入pom文件

<!--slf4j core 使用slf4j必須添加-->
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>1.7.27</version>
</dependency>
<!--slf4j 自带的简单日志实现 -->
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-simple</artifactId>
    <version>1.7.27</version>
</dependency>

2.使用

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

public class Test {
    private final static Logger log = LoggerFactory.getLogger(Test.class);
    public static void main(String[] args) {
        log.info("ddddd");
    }
}