Spring引导和Log4j

Question

是否可以根据我使用的Spring Boot配置文件加载不同的log4j配置。

假设我在application.properties中

log.level=DEBUG
log.path=/opt/tomcat/logs/blabla.log
log.appender=CONSOLE

在application-live.properties中，我为所有3个都有不同的值

log.level=WARN
log.path=/crazy/tomcat/logs/blabla.log
log.appender=FILE

<appender name="FILE" class="org.apache.log4j.RollingFileAppender">
        <param name="File" value="${log.path}" />
        <param name="maxFileSize" value="8MB"/>
        <param name="maxBackupIndex" value="50"/>
        <param name="Append" value="true"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{MM-dd HH:mm:ss} [${project.artifactId}-${project.version}] %p [SearchID - %X{searchID}] %c{1}.%M(%L) %m%n" />
        </layout>
    </appender>
<appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
        <param name="Target" value="System.out" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{MM-dd HH:mm:ss} [${project.artifactId}-${project.version}] %p [SearchID - %X{searchID}] %c{1}.%M(%L) %m%n" />
        </layout>
    </appender>

<logger name="com.mchange" >
        <level value="${log.level}" />
        <appender-ref ref="${log.appender}" />
    </logger>

    <logger name="java.sql" >
        <level value="${log.level}" />
        <appender-ref ref="${log.appender}" />
    </logger>

    <logger name="org.springframework">
        <level value="${log.level}" />
        <appender-ref ref="${log.appender}"/>
    </logger>
<root>
        <level value="${log.level}"/>
        <appender-ref ref="${log.appender}"/>
    </root>

Answer 1

您可以根据环境对不同的配置使用src/main/environment中的单独文件夹。

那么如果您像这样使用gradlebuild,

./gradlew build -Penv=prod

然后,要捕捉环境,在build.gradle中添加以下内容,

 project.ext {
 environment = "dev"
 }

 loadConfiguration()

 def loadConfiguration() {
    project.environment = hasProperty('env') ? env : 'dev'
 }

然后在生成时使用follows复制配置。（将此移动到一个名为copy.gradle的单独文件中，并在生成文件的顶部使用apply from：'copy.gradle'),

task copyConfiguration << {
println "Target environment: $environment"
  copy {
    from "src/main/environment/$project.environment"
    into "src/main/resources"
    include "*/"
  }
}

对于maven来说,它似乎比gradle容易,

<profiles>
<profile>
    <id>dev</id>
    <activation>
        <activeByDefault>true</activeByDefault>
    </activation>
    <build>
        <resources>
            <resource>
                <directory>src/main/resources/dev</directory>
            </resource>
        </resources>
    </build>
</profile>
<profile>
    <id>prod</id>
    <build>
        <resources>
            <resource>
                <directory>src/main/resources/prod</directory>
            </resource>
        </resources>
    </build>
</profile>
</profiles>

和构建类似mvn安装-pdev,我从这里获取了它,阅读这里获得更多信息。