用runnable jar运行akka [英] Running akka with runnable jar

问题描述

我正在尝试使用NetBeans在java maven项目中实现akka。当我从NetBeans运行它时运行正常，但是当我从NetBeans运行runnable jar时，它会生成错误。

I'm trying to implement akka in java maven project with NetBeans. It runs fine when i run it from NetBeans but when I run the runnable jar from NetBeans, it generate error.

Exception in thread "main" com.typesafe.config.ConfigException$Missing: No configuration setting found for key 'akka.remote.log-received-messages'

当我在配置中添加log-received-message时，它会要求另一个配置。这是我用来生成jar文件的插件。

When I add log-received-message in the configuration, it ask for another configuration. This is the plugin that i used to generate the jar file.

<plugin>
        <artifactId>maven-assembly-plugin</artifactId>
</plugin>

我的依赖是

    <dependency>
        <groupId>com.typesafe.akka</groupId> 
        <artifactId>akka-actor_2.10</artifactId> 
        <version>2.3.7</version> 
    </dependency>
    <dependency>
        <groupId>com.typesafe.akka</groupId>
        <artifactId>akka-remote_2.10</artifactId>
        <version>2.3.7</version>
    </dependency>

akka的配置是

akka10300{
akka{
    actor{provider = "akka.remote.RemoteActorRefProvider"}
    remote {
    enabled-transports = ["akka.remote.netty.tcp"]
        netty.tcp {
            hostname="127.0.0.1"
            port=10300
        }
    }
}
}

推荐答案

有关于从中运行Akka的警告 http://doc.akka.io/docs上的胖罐 /akka/snapshot/general/configuration.html 。问题是有多个 reference.conf 配置文件，Maven程序集或树荫插件的默认行为是用后面的实例覆盖配置文件的早期实例。

There is a warning about running Akka from a "fat jar" at http://doc.akka.io/docs/akka/snapshot/general/configuration.html. The issue is that there are multiple reference.conf configuration files, and the default behaviour of the Maven assembly or shade plugins is to overwrite earlier instances of the configuration file with later instances.

要解决此问题，建议的方法是使用Maven shade插件生成可执行jar并将其配置为附加所有 resource.conf 将文件放入单个文件而不是覆盖。建议的Maven shade插件配置如下所示：

To fix this, the suggested approach is to use the Maven shade plugin to generate your executable jar and configure it to append all resource.conf files into a single file instead of overwriting. The suggested Maven shade plugin configuration looks like:

<plugin>
 <groupId>org.apache.maven.plugins</groupId>
 <artifactId>maven-shade-plugin</artifactId>
 <version>1.5</version>
 <executions>
  <execution>
   <phase>package</phase>
   <goals>
    <goal>shade</goal>
   </goals>
   <configuration>
    <shadedArtifactAttached>true</shadedArtifactAttached>
    <shadedClassifierName>allinone</shadedClassifierName>
    <artifactSet>
     <includes>
      <include>*:*</include>
     </includes>
    </artifactSet>
    <transformers>
      <transformer
       implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
       <resource>reference.conf</resource>
      </transformer>
      <transformer
       implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
       <manifestEntries>
        <Main-Class>akka.Main</Main-Class>
       </manifestEntries>
      </transformer>
    </transformers>
   </configuration>
  </execution>
 </executions>
</plugin>

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