Springboot logback-spring.xml無法加載問題

更新時間：2024年05月14日 16:04:02 作者：zhangnero

這篇文章主要介紹了Springboot logback-spring.xml無法加載問題,具有很好的參考價值,希望對大家有所幫助,如有錯誤或未考慮完全的地方,望不吝賜教

Springboot logback-spring.xml無法加載

現(xiàn)象

SpringBoot項目，啟動后，日志文件沒有出現(xiàn)在logback-spring.xml指定的目錄下

且啟動日志開頭如下：

"C:\Program Files\Java\jdk1.8.0_144\bin\java"...
Connected to the target VM, address: '127.0.0.1:52494', transport: 'socket'
18:34:58,011 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback-test.xml]
18:34:58,011 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.groovy]
18:34:58,011 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found resource [logback.xml] at [jar:file:/D:/mvn_repo/xxx-1.0.2.jar!/logback.xml]
18:34:58,014 |-INFO in ch.qos.logback.core.joran.spi.ConfigurationWatchList@707194ba - URL [jar:file:/D:/mvn_repo/yyy-1.0.2.jar!/logback.xml] is not of type file
18:34:58,112 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - Will scan for changes in [jar:file:/D:/mvn_repo/zzz-1.0.2.jar!/logback.xml]

logback-spring.xml文件一直未改動過，如下：

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

    <springProperty scope="context" name="logPath" source="log.path"/>
    <springProperty scope="context" name="logLevel" source="log.level"/>


    <appender name="consoleLog" class="ch.qos.logback.core.ConsoleAppender">
        <layout class="ch.qos.logback.classic.PatternLayout">
            <pattern> %d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%thread] %logger{36} %line - %msg%n</pattern>
        </layout>
    </appender>

    <appender name="fileLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <!--滾動策略-->
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!--輸出路徑-->
            <fileNamePattern>${logPath}/server.%d.log</fileNamePattern>
        </rollingPolicy>
        <encoder>
            <pattern> %d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%thread] %logger{36} %line - %msg%n</pattern>
            <charset>UTF-8</charset>
        </encoder>
    </appender>

    <appender name="fileErrorLog" 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>
        <!--滾動策略-->
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!--輸出路徑-->
            <fileNamePattern>${logPath}/server.%d.error</fileNamePattern>
        </rollingPolicy>
        <encoder>
            <pattern> %d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%thread] %logger{36} %line - %msg%n</pattern>
            <charset>UTF-8</charset>
        </encoder>
    </appender>

    <root level="${logLevel}">
        <appender-ref ref="consoleLog"/>
        <appender-ref ref="fileLog"/>
        <appender-ref ref="fileErrorLog"/>
    </root>
</Configuration>

原因分析

1.配置文件位置正確

classes/
├── application.properties
├── com
│   └── nero
│       └── test
│           ├── api
│           │   ├── Api.class

2.分析啟動日志，分析可能是依賴的jar中有l(wèi)ogback.xml配置，沖突導(dǎo)致的問題

解決方案

在application.properties中加入配置：

logging.config=classpath:logback-spring.xml

通過該配置，強制指定日志的配置文件，問題得以解決

springboot logback-spring.xml 配置, 使用不同配置文件中的配置

application.yml

spring:
  profiles:
    active: prod  # active 哪一個配置文件

application-dev.yml

logging:
  file:
    path: d:/var/log

application-prod.yml

logging:
  file:
    path: /var/log/question

logback-spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" scanPeriod="60 seconds" debug="false">
    <contextName>wechat-service</contextName>
    <!-- !!!!!!!!!獲取 application-{xxx}.yml 的配置 !!!!!-->
    <springProperty scope="context" name="log.path" source="logging.file.path"/>
    <!--<property name="log.path" value="log" />-->
    <property name="log.maxHistory" value="15" />
    <property name="log.colorPattern" value="%d{yyyy-MM-dd HH:mm:ss} | %highlight(%-5level) | %boldYellow(%thread) | %boldGreen(%logger) | %msg%n"/>
    <property name="log.pattern" value="%d{yyyy-MM-dd HH:mm:ss.SSS} %contextName [%thread] %-5level %logger{36} - %msg%n" />
    <!--輸出到控制臺-->
    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>${log.colorPattern}</pattern>
        </encoder>
    </appender>
    <!--輸出到文件 info 級別的 log-->
    <appender name="file_info" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${log.path}/info/info.%d{yyyy-MM-dd}.log</fileNamePattern>
            <MaxHistory>${log.maxHistory}</MaxHistory>
        </rollingPolicy>
        <encoder>
            <pattern>${log.pattern}</pattern>
        </encoder>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>INFO</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
    </appender>
    <!--輸出到文件 error 級別的 log-->
    <appender name="file_error" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${log.path}/error/error.%d{yyyy-MM-dd}.log</fileNamePattern>
        </rollingPolicy>
        <encoder>
            <pattern>${log.pattern}</pattern>
        </encoder>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>ERROR</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
    </appender>
    <root level="debug">
        <appender-ref ref="console" />
    </root>
    <root level="info">
        <appender-ref ref="file_info" />
        <appender-ref ref="file_error" />
    </root>

</configuration>

從application-xxx.yml 中拿配置

<springProperty scope="context" name="log.path" source="logging.file.path"/>

總結(jié)

以上為個人經(jīng)驗，希望能給大家一個參考，也希望大家多多支持腳本之家。

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