SLF4J快速入门

简介

Java 简易日志界面（SLF4J）作为各种日志框架（e.g. java.util.logging、logback、log4j）的简单表象或抽象，允许终端用户在部署时插入所需的日志框架。

架构图：

使用：

pom.xml:

<dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>2.0.17</version>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-core</artifactId>
            <version>1.5.21</version>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.5.21</version>
        </dependency>

logback.xml:

<configuration>
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>


    <root level="debug">
        <appender-ref ref="STDOUT" />
    </root>

</configuration>

测试：

package com.example.demo;

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

public class Example {

    private static final Logger logger = LoggerFactory.getLogger(Example.class);

    public static void main(String[] args) {
        String message = "This is a String";
        Integer zero = 0;

        try {
            logger.debug("Logging message: {}", message);
            logger.debug("Going to divide {} by {}", 42, zero);
            int result = 42 / zero;
        } catch (Exception e) {
            logger.error("Error dividing {} by {} ", 42, zero, e);
        }




    }
}

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