Akka Development (i) HelloWorld

 PackageCom.hfi.helloakka;ImportAkka.actor.ActorRef;ImportAkka.actor.Props;ImportAkka.actor.UntypedActor; Public classHelloWorldextendsUntypedactor {@Override Public voidPrestart () {//Create the greeter actor        FinalActorref greeter =GetContext (). Actorof (Props.create (Greeter.class), "Greeter"); //Tell it to perform the greetingGreeter.tell (Greeter.Msg.GREET, getself ()); } @Override Public voidonreceive (Object msg) {if(msg = =Greeter.Msg.DONE) {//When the greeter is do, stop this actor and with it the applicationGetContext (). Stop (Getself ()); } Elseunhandled (msg); }    }

 PackageCom.hfi.helloakka;ImportAkka.actor.UntypedActor; Public classGreeterextendsUntypedactor { Public Static enumMSG {GREET, done; } @Override Public voidonreceive (Object msg) {if(msg = =msg.greet) {System.out.println ("Hello world!");        Getsender (). Tell (Msg.done, getself ()); } Elseunhandled (msg); }          }

Pom.xml

<Projectxmlns= "http://maven.apache.org/POM/4.0.0"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"xsi:schemalocation= "http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">  <modelversion>4.0.0</modelversion>  <groupId>Com.hfi</groupId>  <Artifactid>Helloakka</Artifactid>  <Packaging>War</Packaging>  <version>0.0.1-snapshot</version>  <name>Helloakka Maven Webapp</name>  <URL>http://maven.apache.org</URL>  <Dependencies>    <Dependency>      <groupId>Junit</groupId>      <Artifactid>Junit</Artifactid>      <version>3.8.1</version>      <Scope>Test</Scope>    </Dependency>    <Dependency>        <groupId>Org.scala-lang</groupId>        <Artifactid>Scala-library</Artifactid>        <version>2.10.2</version>    </Dependency>    <Dependency>          <groupId>Com.typesafe.akka</groupId>          <Artifactid>akka-actor_2.10</Artifactid>          <version>2.2.5</version>    </Dependency>  </Dependencies>  <Build>    <Finalname>Helloakka</Finalname>  </Build></Project>

Problems you may encounter:

Java.lang.noclassdeffounderror:scala/collection/gentraversableonce$class

With the Akka package with the dependency of the Scala package version inconsistent led (seemingly Scala is not compatible with its old version), the author began to use the 2.11.7 error, in the Pom 2.10.2 (to akka-2.2.5.zip version number) program ran up. Referenced by: http://www.jianshu.com/p/59733597d448

Akka Development (i) HelloWorld