Logback配置

1.logback.xml

<?xml version="1.0" encoding="UTF-8"?><configuration debug="false">    <!--定义日志文件的存储地址 勿在 LogBack 的配置中使用相对路径 -->    <!-- <property name="LOG_HOME" value="/test/log" /> -->    <!-- 控制台输出 -->    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">            <!-- 格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符 -->            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{150} -                %msg%n</pattern>        </encoder>    </appender>    <!-- 按照每天生成日志文件 -->    <appender name="FILE"        class="ch.qos.logback.core.rolling.RollingFileAppender">        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">            <!--日志文件输出的文件名 -->            <FileNamePattern>/Users/swd/TestWeb.log.%d{yyyy-MM-dd}.log            </FileNamePattern>            <!--日志文件保留天数 -->            <MaxHistory>30</MaxHistory>        </rollingPolicy>        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">            <!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符 -->            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{150} -                %msg%n</pattern>        </encoder>        <!--日志文件最大的大小 -->        <triggeringPolicy            class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">            <MaxFileSize>10MB</MaxFileSize>        </triggeringPolicy>    </appender>    <!--日志异步到数据库 -->    <appender name="DB" class="ch.qos.logback.classic.db.DBAppender">        <connectionSource class="ch.qos.logback.core.db.DataSourceConnectionSource">                <dataSource class="org.apache.tomcat.jdbc.pool.DataSource">         <driverClassName>com.mysql.jdbc.Driver</driverClassName>                <url>jdbc:mysql://127.0.0.1:3306/logtest</url>                <username>root</username>                <password>mysql</password>            </dataSource>        </connectionSource>    </appender>    <!--myibatis log configure -->    <logger name="com.apache.ibatis" level="TRACE" />    <logger name="java.sql.Connection" level="DEBUG" />    <logger name="java.sql.Statement" level="DEBUG" />    <logger name="java.sql.PreparedStatement" level="DEBUG" />    <!-- 日志输出级别 -->    <root level="INFO">        <appender-ref ref="STDOUT" />        <appender-ref ref="FILE" />        <appender-ref ref="DB" />    </root></configuration>

2.如果想把日志异步到数据库(MySQL),需要在数据库中新建三张表

BEGIN;  DROP TABLE IF EXISTS logging_event_property;  DROP TABLE IF EXISTS logging_event_exception;  DROP TABLE IF EXISTS logging_event;  COMMIT;    BEGIN;  CREATE TABLE logging_event     (      timestmp         BIGINT NOT NULL,      formatted_message  TEXT NOT NULL,      logger_name       VARCHAR(254) NOT NULL,      level_string      VARCHAR(254) NOT NULL,      thread_name       VARCHAR(254),      reference_flag    SMALLINT,      arg0              VARCHAR(254),      arg1              VARCHAR(254),      arg2              VARCHAR(254),      arg3              VARCHAR(254),      caller_filename   VARCHAR(254) NOT NULL,      caller_class      VARCHAR(254) NOT NULL,      caller_method     VARCHAR(254) NOT NULL,      caller_line       CHAR(4) NOT NULL,      event_id          BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY    );  COMMIT;  BEGIN;  CREATE TABLE logging_event_property    ( event_id          BIGINT NOT NULL,      mapped_key        VARCHAR(254) NOT NULL,      mapped_value      TEXT,      PRIMARY KEY(event_id, mapped_key),      FOREIGN KEY (event_id) REFERENCES logging_event(event_id)    );  COMMIT;  BEGIN;  CREATE TABLE logging_event_exception    (      event_id         BIGINT NOT NULL,      i                SMALLINT NOT NULL,      trace_line       VARCHAR(254) NOT NULL,      PRIMARY KEY(event_id, i),      FOREIGN KEY (event_id) REFERENCES logging_event(event_id)    );  COMMIT;