java - Akka添加slf4j时出现ClassNotFoundException

Question

以下是我在将 slf4j 添加到我的 Akka 项目时得到的错误跟踪。

.....
[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]]
.....

您知道如何解决此问题吗？

Answer 1

可以通过向 Akka 项目添加 akka-slf4j 依赖项来解决此问题。

    <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>

NOTE: Make sure your akka-actor and akka-slf4j have the same versions.