如何使用外部属性文件在 Springboot 中使用 log4j2？

Question

我不想log4j2.properties在我的弹簧靴中使用文件。我想使用外部属性文件，但它显示了一个错误。

Exception in thread "main" java.lang.AbstractMethodError: org.apache.logging.log4j.core.config.ConfigurationFactory.getConfiguration(Lorg/apache/logging/log4j/core/config/ConfigurationSource;)Lorg/apache/logging/log4j/core/config/Configuration;
at org.apache.logging.log4j.core.config.ConfigurationFactory$Factory.getConfiguration(ConfigurationFactory.java:510)
at org.apache.logging.log4j.core.config.ConfigurationFactory$Factory.getConfiguration(ConfigurationFactory.java:450)
at org.apache.logging.log4j.core.config.ConfigurationFactory.getConfiguration(ConfigurationFactory.java:257)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:560)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:577)
at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:212)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:152)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:551)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:537)
at com.flight.testcode.App.<clinit>(App.java:11)

Pom 文件依赖

<dependencies>
<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
    </dependency>
   <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-api</artifactId>
        <version>2.6.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-core</artifactId>
        <version>2.6.1</version>
    </dependency>

那么我如何使用外部属性文件。

它也不支持 log4j2 版本 2.11.1 吗？

Answer 1

添加以下依赖

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>

然后在启动时指定您的日志记录配置：

-Dlogging.config=/path/to/log4j2.yaml (or .json or .xml)