Spring Boot笔记-logback-spring.xml获取application.properties中的变量

分手后的思念是犯贱 2022-11-20 09:32 217阅读 0赞

logback.xml的加载顺序早于springboot的application.yml (或application.properties) 配置文件当然读不到application.yml（或application.properties）文件中的值了。

需要通过springProperty标签来引用：<springProperty scope="context" name="log.path" source="path.log"/>这里的name和上面property标签。

如下：

![20201028064445912.png][]

其中application.properties：

springBoot.log=D:/logs

logback-spring.xml

<?xml version="1.0" encoding="UTF-8" ?>
    <configuration>
        <springProperty scope="context" name="LOG_HOME" source="springBoot.log" />
        
        <appender name="consoleLog" class="ch.qos.logback.core.ConsoleAppender">
            <layout class="ch.qos.logback.classic.PatternLayout">
                <pattern>
                    %d - %msg%n
                </pattern>
            </layout>
        </appender>
        
        <appender name="fileInfoLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>INFO</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            <encoder>
                <pattern>
                    %d - %msg%n
                </pattern>
            </encoder>
            
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                
    
                <fileNamePattern>${LOG_HOME}/info/info.%d.log</fileNamePattern>
            </rollingPolicy>
        </appender>
    
        
        <appender name="fileWarnLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>WARN</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            <encoder>
                <pattern>
                    %d - %msg%n
                </pattern>
            </encoder>
            
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                
    
                <fileNamePattern>${LOG_HOME}/warn/warn.%d.log</fileNamePattern>
            </rollingPolicy>
        </appender>
    
        
        <appender name="fileErrorLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
                <level>ERROR</level>
            </filter>
            <encoder>
                <pattern>
                    %d - %msg%n
                </pattern>
            </encoder>
            
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                
    
                <fileNamePattern>${LOG_HOME}/error/error.%d.log</fileNamePattern>
            </rollingPolicy>
        </appender>
    
        <root level="info">
            <appender-ref ref="consoleLog"/>
            <appender-ref ref="fileInfoLog"/>
            <appender-ref ref="fileWarnLog"/>
            <appender-ref ref="fileErrorLog"/>
        </root>
    
    </configuration>

[20201028064445912.png]: /images/20221120/9edb08da220346ea811e0b98f32a646f.png