將slf4j添加到Akka時的ClassNotFoundException

Question

以下是我將slf4j添加到Akka項目時的錯誤跟蹤。

.....
[DEBUG] [05/07/2019 10:12:00.959] [main] [EventStream] StandardOutLogger started
error while starting up loggers
akka.ConfigurationException: Logger specified in config can't be loaded [akka.event.slf4j.Slf4jLogger] due to [java.lang.ClassNotFoundException: akka.event.slf4j.Slf4jLogger]
.....
Caused by: java.lang.ClassNotFoundException: akka.event.slf4j.Slf4jLogger
.....
Exception in thread "main" akka.ConfigurationException: Could not start logger due to [akka.ConfigurationException: Logger specified in config can't be loaded [akka.event.slf4j.Slf4jLogger] due to [java.lang.ClassNotFoundException: akka.event.slf4j.Slf4jLogger]]
.....

有關如何解決此問題的任何想法？

Answer 1

可以通過將akka-slf4j依賴項添加到Akka項目來解決此問題。

    <dependency>
        <groupId>com.typesafe.akka</groupId>
        <artifactId>akka-actor_2.12</artifactId>
        <version>2.5.22</version>
    </dependency>
    <dependency>
        <groupId>com.typesafe.akka</groupId>
        <artifactId>akka-slf4j_2.12</artifactId>
        <version>2.5.22</version>
    </dependency>

注意：確保您的akka-actor和akka-slf4j具有相同的版本。