spring boot2 使用log4j2

時間 2019-12-12

標籤 spring boot2 boot 使用 log4j2 log 欄目 Spring 简体版

原文原文鏈接

spring boot默認使用的是logback,看到好多地方說logback比log4j耗性能，具體麼我也沒試過，不過我的仍是log4j用得更多。html

先看pom依賴java

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j2</artifactId>
        </dependency>

spring boot日誌提供了三種日誌的實現， Java Util Logging，Log4J2和 Logback
web

而選擇這其中的一個須要設置系統屬性org.springframework.boot.logging.LoggingSystem，一開始我是直接在啓動類裏面這樣設置的spring

 System.setProperty("org.springframework.boot.logging.LoggingSystem","Log4J2");

然而發現並非，後來看看代碼發現這麼幾行sql

試了試，真實設置是這樣的apache

 System.setProperty("org.springframework.boot.logging.LoggingSystem","org.springframework.boot.logging.log4j2.Log4J2LoggingSystem");

而使用不一樣的日誌實現，系統會去默認加載如下文件api

Logbacktomcat	`logback-spring.xml`, `logback-spring.groovy`, `logback.xml`, or `logback.groovy`oracle
Log4j2app	`log4j2-spring.xml` or `log4j2.xml`
JDK (Java Util Logging)	`logging.properties`

因此這時候須要定製log配置的話能夠在resource下建立 log4j2.xml就能夠了

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
    <Properties>
        <Property name="PID">????</Property>
        <Property name="LOG_EXCEPTION_CONVERSION_WORD">%xwEx</Property>
        <Property name="LOG_LEVEL_PATTERN">%5p</Property>
        <Property name="LOG_DATEFORMAT_PATTERN">yyyy-MM-dd HH:mm:ss.SSS</Property>
        <Property name="CONSOLE_LOG_PATTERN">%clr{%d{${LOG_DATEFORMAT_PATTERN}}}{faint} %clr{${LOG_LEVEL_PATTERN}} %clr{${sys:PID}}{magenta} %clr{---}{faint} %clr{[%15.15t]}{faint} %clr{%-40.40c{1.}}{cyan} %clr{:}{faint} %m%n${sys:LOG_EXCEPTION_CONVERSION_WORD}</Property>
        <Property name="FILE_LOG_PATTERN">%d{${LOG_DATEFORMAT_PATTERN}} ${LOG_LEVEL_PATTERN} ${sys:PID} --- [%t] %-40.40c{1.} : %m%n${sys:LOG_EXCEPTION_CONVERSION_WORD}</Property>
    </Properties>
    <Appenders>
        <Console name="Console" target="SYSTEM_OUT" follow="true">
            <PatternLayout pattern="${sys:CONSOLE_LOG_PATTERN}" />
        </Console>
    </Appenders>
    <Loggers>
        <Logger name="org.apache.catalina.startup.DigesterFactory" level="error" />
        <Logger name="org.apache.catalina.util.LifecycleBase" level="error" />
        <Logger name="org.apache.coyote.http11.Http11NioProtocol" level="warn" />
        <logger name="org.apache.sshd.common.util.SecurityUtils" level="warn"/>
        <Logger name="org.apache.tomcat.util.net.NioSelectorPool" level="warn" />
        <Logger name="org.eclipse.jetty.util.component.AbstractLifeCycle" level="error" />
        <Logger name="org.hibernate.validator.internal.util.Version" level="warn" />
        <logger name="org.springframework.boot.actuate.endpoint.jmx" level="warn"/>
        <Root level="info">
            <AppenderRef ref="Console" />
        </Root>
    </Loggers>
</Configuration>

這是官方默認的配置，下面是我本身改了後的

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

<!--日誌級別以及優先級排序: OFF > FATAL > ERROR > WARN > INFO > DEBUG > TRACE > ALL -->

<!--Configuration後面的status，這個用於設置log4j2自身內部的信息輸出，能夠不設置，當設置成trace時，你會看到log4j2內部各類詳細輸出-->

<!--monitorInterval：Log4j可以自動檢測修改配置 文件和從新配置自己，設置間隔秒數-->

<Configuration status="WARN" monitorInterval="30">

    <Properties>
        <Property name="PID">????</Property>
        <Property name="LOG_EXCEPTION_CONVERSION_WORD">%xwEx</Property>
        <Property name="LOG_LEVEL_PATTERN">%5p</Property>
        <Property name="LOG_DATEFORMAT_PATTERN">yyyy-MM-dd HH:mm:ss.SSS</Property>
        <Property name="CONSOLE_LOG_PATTERN">%clr{%d{${LOG_DATEFORMAT_PATTERN}}}{faint} %clr{${LOG_LEVEL_PATTERN}} %clr{${sys:PID}}{magenta} %clr{---}{faint} %clr{[%15.15t]}{faint} %clr{%-40.40c{1.}}{cyan} %clr{:}{faint} %m%n${sys:LOG_EXCEPTION_CONVERSION_WORD}</Property>
        <Property name="FILE_LOG_PATTERN">%d{${LOG_DATEFORMAT_PATTERN}} ${LOG_LEVEL_PATTERN} ${sys:PID} --- [%t] %-40.40c{1.} : %m%n${sys:LOG_EXCEPTION_CONVERSION_WORD}</Property>
    </Properties>
    <!--先定義全部的appender-->

    <appenders>

        <!--這個輸出控制檯的配置-->
        <Console name="Console" target="SYSTEM_OUT" follow="true">
            <PatternLayout pattern="${sys:CONSOLE_LOG_PATTERN}" />
        </Console>

        <!--文件會打印出全部信息，這個log每次運行程序會自動清空，由append屬性決定，這個也挺有用的，適合臨時測試用-->

        <!--<File name="log" fileName="log/test.log" append="false">-->

            <!--<PatternLayout pattern="%d{HH:mm:ss.SSS} %-5level %class{36} %L %M - %msg%xEx%n"/>-->

        <!--</File>-->

        <!-- 這個會打印出全部的info及如下級別的信息，每次大小超過size，則這size大小的日誌會自動存入按年份-月份創建的文件夾下面並進行壓縮，做爲存檔-->

        <RollingFile name="RollingFileInfo" fileName="./logs/info.log"

                     filePattern="./logs/$${date:yyyy-MM}/info-%d{yyyy-MM-dd}-%i.log">

            <!--控制檯只輸出level及以上級別的信息（onMatch），其餘的直接拒絕（onMismatch）-->

            <ThresholdFilter level="info" onMatch="ACCEPT" onMismatch="DENY"/>

            <PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>

            <Policies>

                <TimeBasedTriggeringPolicy/>

                <SizeBasedTriggeringPolicy size="100 MB"/>

            </Policies>

        </RollingFile>

        <RollingFile name="RollingFileWarn" fileName="./logs/warn.log"

                     filePattern="./logs/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.log">

            <ThresholdFilter level="warn" onMatch="ACCEPT" onMismatch="DENY"/>

            <PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>

            <Policies>

                <TimeBasedTriggeringPolicy/>

                <SizeBasedTriggeringPolicy size="100 MB"/>

            </Policies>

            <!-- DefaultRolloverStrategy屬性如不設置，則默認爲最多同一文件夾下7個文件，這裏設置了20 -->

            <DefaultRolloverStrategy max="20"/>

        </RollingFile>

        <RollingFile name="RollingFileError" fileName="./logs/error.log"

                     filePattern="./logs/$${date:yyyy-MM}/error-%d{yyyy-MM-dd}-%i.log">

            <ThresholdFilter level="error" onMatch="ACCEPT" onMismatch="DENY"/>

            <PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>

            <Policies>

                <TimeBasedTriggeringPolicy/>

                <SizeBasedTriggeringPolicy size="100 MB"/>

            </Policies>

        </RollingFile>
        <!-- sql輸出文件 -->
        <RollingFile name="SQL" fileName="./logs/sql.log"
                     filePattern="./logs/$${date:yyyy-MM}/sql-%d{yyyy-MM-dd}-%i.log">
            <ThresholdFilter level="debug" onMatch="ACCEPT" onMismatch="DENY"/>

            <PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>

            <Policies>

                <TimeBasedTriggeringPolicy/>

                <SizeBasedTriggeringPolicy size="100 MB"/>

            </Policies>

        </RollingFile>

    </appenders>

    <!--而後定義logger，只有定義了logger並引入的appender，appender纔會生效-->

    <loggers>


        <Logger name="org.apache.catalina.startup.DigesterFactory" level="error" />
        <Logger name="org.apache.catalina.util.LifecycleBase" level="error" />
        <Logger name="org.apache.coyote.http11.Http11NioProtocol" level="warn" />
        <logger name="org.apache.sshd.common.util.SecurityUtils" level="warn"/>
        <Logger name="org.apache.tomcat.util.net.NioSelectorPool" level="warn" />
        <Logger name="org.eclipse.jetty.util.component.AbstractLifeCycle" level="error" />
        <Logger name="org.hibernate.validator.internal.util.Version" level="warn" />
        <logger name="org.springframework.boot.actuate.endpoint.jmx" level="warn"/>

        <!--輸出sql-->
        <logger name="com.qthl.wf.dao" level="debug" additivity="false">
            <appender-ref ref="Console"/>
            <appender-ref ref="SQL"/>
        </logger>
        <root level="info">
            <appender-ref ref="Console"/>
            <appender-ref ref="RollingFileInfo"/>
            <appender-ref ref="RollingFileWarn"/>
            <appender-ref ref="RollingFileError"/>
        </root>
    </loggers>

</Configuration>