java - Elasticsearch "StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath."

Question

我将 elasticsearch java 客户端从 2.3 升级到 5.1。

并且此错误日志继续出现。

ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console...

我正在使用 log4j2

<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-api</artifactId>
    <version>2.7</version>
</dependency>
<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-core</artifactId>
    <version>2.7</version>
</dependency>

Answer 1

很晚的回答，但是 :) 如果你不想升级 ES，只需将以下依赖项添加到 pom 中:

<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-to-slf4j</artifactId>
    <version>2.8.2</version>
</dependency>

应该可以解决