springboot项目将日志输出保存至本地

首先需要在你的yml文件中配置一下日志：
我是将日志文件配置在一个文件里，所以我在yml中引入我配置的文件：

logging:
  config: classpath:logback-core.xml

然后在logback-core.xml文件中配置，日志的输出

<?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="../lzj_qj_logs" />
    <!-- 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{50} - %msg%n</pattern>
            <charset>utf-8</charset>
        </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>${LOG_HOME}/lzjService.log.%d{yyyy-MM-dd}.log</FileNamePattern>
            <!--日志文件保留天数-->
            <MaxHistory>90</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{50} - %msg%n</pattern>
        </encoder>
        <!--日志文件最大的大小-->
        <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
            <MaxFileSize>30MB</MaxFileSize>
        </triggeringPolicy>
    </appender>

    <!-- 生成html格式日志开始 -->
    <appender name="HTML" class="ch.qos.logback.core.FileAppender">
        <!-- 过滤器，只记录WARN级别的日志 -->
        <!-- <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>info</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>   -->

        <encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
            <layout class="ch.qos.logback.classic.html.HTMLLayout">
                <pattern>%p%d%msg%M%F{32}%L</pattern>
            </layout>
        </encoder>
        <file>../lzj_qj_logs/Bim-activiti-service/activitiService-error-log.html</file>
    </appender>

    <!-- 生成html格式日志结束 -->

    <!-- 每天生成一个html格式的日志开始 -->
    <appender name="FILE_HTML"  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>${LOG_HOME}/activitiService.log.%d{yyyy-MM-dd}.html</FileNamePattern>
            <!--日志文件保留天数-->
            <MaxHistory>90</MaxHistory>
        </rollingPolicy>
        <encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
            <layout class="ch.qos.logback.classic.html.HTMLLayout">
                <pattern>%p%d%msg%M%F{32}%L</pattern>
            </layout>
        </encoder>
        <!--日志文件最大的大小-->
        <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
            <MaxFileSize>30MB</MaxFileSize>
        </triggeringPolicy>
    </appender>

    <!-- 每天生成一个html格式的日志结束 -->

    <!-- 生成独立文件 -->
    <!-- <appender name="ERROR_ORDER_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>error</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
        <file>E:/sql/log_info.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>E:/sql/log_info-%d{yyyyMMdd}.log.%i</fileNamePattern>
            <timeBasedFileNamingAndTriggeringPolicy
                    class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>50MB</maxFileSize>
            </timeBasedFileNamingAndTriggeringPolicy>
            <maxHistory>2</maxHistory>
        </rollingPolicy>
        <layout class="ch.qos.logback.classic.PatternLayout">
            <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} -%msg%n
            </Pattern>
        </layout>
    </appender> -->



    <!-- show parameters for hibernate sql 专为 Hibernate 定制 -->
    <!-- <logger name="org.hibernate.type.descriptor.sql.BasicBinder"  level="TRACE" />
    <logger name="org.hibernate.type.descriptor.sql.BasicExtractor"  level="DEBUG" />
    <logger name="org.hibernate.SQL" level="DEBUG" />
    <logger name="org.hibernate.engine.QueryParameters" level="DEBUG" />
    <logger name="org.hibernate.engine.query.HQLQueryPlan" level="DEBUG" /> -->

    <!--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"/>
    <logger name="java.sql.ResultSet" level="INFO"/>

    <!-- 日志输出级别 -->
    <root level="INFO">
        <!-- <appender-ref ref="ERROR_ORDER_FILE" />-->
        <appender-ref ref="STDOUT" />
        <appender-ref ref="FILE" />
        <appender-ref ref="HTML" />
        <appender-ref ref="FILE_HTML" />
    </root>

    <!--日志异步到数据库 -->
    <!--<appender name="DB" class="ch.qos.logback.classic.db.DBAppender">-->
    <!--<!–日志异步到数据库 –>-->
    <!--<connectionSource class="ch.qos.logback.core.db.DriverManagerConnectionSource">-->
    <!--<!–连接池 –>-->
    <!--<dataSource class="com.mchange.v2.c3p0.ComboPooledDataSource">-->
    <!--<driverClass>com.mysql.jdbc.Driver</driverClass>-->
    <!--<url>jdbc:mysql://127.0.0.1:3306/databaseName</url>-->
    <!--<user>root</user>-->
    <!--<password>root</password>-->
    <!--</dataSource>-->
    <!--</connectionSource>-->
    <!--</appender>-->
</configuration>