spring项目slf4j使用

idea安装lombok

pom新增包

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

配置log ( logback-spring.xml )

<?xml version="1.0" encoding="UTF-8" ?>

<configuration>

    <!--ch.qos.logback.core.ConsoleAppender 是 logback 类的完整路径-->
    <appender name="consoleLog" class="ch.qos.logback.core.ConsoleAppender">
        <layout class="ch.qos.logback.classic.PatternLayout">
            <pattern>
                %d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
            </pattern>
        </layout>
    </appender>

    <!--RollingFileAppender 可以做到每天输出一个日志文件-->
    <appender name="fileInfoLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <!--LevelFilter -->
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>ERROR</level>
            <!--匹配则禁止-->
            <onMatch>DENY</onMatch>
            <!--不匹配则应用-->
            <onMismatch>ACCEPT</onMismatch>
        </filter>
        <encoder>
            <pattern>
                %d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
            </pattern>
        </encoder>
        <!-- 滚动策略 -->
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!--输出路径-->
            <fileNamePattern>${user.dir}\logger\info.%d.log</fileNamePattern>
        </rollingPolicy>
    </appender>

    <appender name="fileErrorLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <!--ThresholdFilter 根据范围过滤，即大于等于 error 的日志都记录-->
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>ERROR</level>
        </filter>
        <encoder>
            <pattern>
                %d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n
            </pattern>
        </encoder>
        <!-- 滚动策略 -->
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${user.dir}\logger\error.%d.log</fileNamePattern>
        </rollingPolicy>
    </appender>

    <root level="info">
        <appender-ref ref="consoleLog"></appender-ref>
        <appender-ref ref="fileInfoLog"></appender-ref>
        <appender-ref ref="fileErrorLog"></appender-ref>
    </root>


</configuration>