logback.xml日志文件配置

logback.xml日志文件配置

                  在项目当中日志也成为必不可少的一部分，除了再控制台上打印控制台日志以外，在服务器上运行时候日志都是记录到日志文件里面，那么日志文件一般是怎么配置的，放在哪个目录下面呢，这些都是需要我们思考的，首先我们看下日志引进都需要哪些包：

<!--与日志相关的jar -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.2</version>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-core</artifactId>
            <version>1.0.13</version>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.0.13</version>
        </dependency>

下面就是配置文件写法，命名为logback.xml放到src/main/resources根目录下，程序会自动加载日志文件

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <contextName>logback-4001</contextName>
    <jmxConfigurator />
    <!-- 日志路径 -->
    <property name="LOG_HOME" value=" /home/spirits/service/logs/" />

    <!-- console控制台日志 -->
    <appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
        <layout class="ch.qos.logback.classic.PatternLayout">
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
        </layout>
    </appender>

    <!-- 程序运行日志记录-3天-->
    <appender name="INFO_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <FileNamePattern>${LOG_HOME}/info/spirit-info-%d{yyyy-MM-dd}.log</FileNamePattern>
            <MaxHistory>3</MaxHistory>  <!--保存天数  -->
        </rollingPolicy>
        <layout class="ch.qos.logback.classic.PatternLayout">
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n </pattern>
        </layout>
    </appender>

    <!-- 错误日志记录-15天 -->
    <appender name="ERROR_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <FileNamePattern>${LOG_HOME}/error/spirit-error-%d{yyyy-MM-dd}.log</FileNamePattern>
            <MaxHistory>15</MaxHistory>
        </rollingPolicy>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>ERROR</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
        <layout class="ch.qos.logback.classic.PatternLayout">
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n </pattern>
        </layout>
    </appender>

    <root level="info">
        <appender-ref ref="stdout" />
        <appender-ref ref="ERROR_FILE" />
        <appender-ref ref="INFO_FILE" />
    </root>

</configuration>

若不放到src/main/resources根目录下，则需要引入，比如此时放在src/main/resources/META-INF/logback/下，文件名为logback-test.xml,则需要在src/main/resources根目录下面新建logback.xml,配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<include resource="META-INF/logback/logback-test.xml"/>
</configuration>