关于本文
- 版本：2.6之后的版本为收费版本，2.6版本的scala版使用文档见v2.6使用文档，flink在用的也是这个版本
- api类型：classic比较灵活，试用一下classic版本的api
构建应用Demo
配置如下的pom文件
pom.xml >folded1
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| <?xml version="1.0" encoding="UTF-8"?>
<project xmlns="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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>tech.bravoqq</groupId>
<artifactId>demo-akka</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<scala.version>2.12.19</scala.version>
<scala.base.version>2.12</scala.base.version>
<akka.version>2.6.21</akka.version>
</properties>
<dependencies>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-actor_${scala.base.version}</artifactId>
<version>${akka.version}</version>
</dependency>
</dependencies>
<build>
<sourceDirectory>src/main/scala</sourceDirectory>
<testSourceDirectory>src/test/scala</testSourceDirectory>
<plugins>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>4.9.2</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
<configuration>
<scalaVersion>${scala.version}</scalaVersion>
</configuration>
</plugin>
</plugins>
</build>
</project>
|
官方demo给到的是一个ping-pong的系统，如下，
Application.scala1
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| import akka.actor.{Actor, ActorRef, ActorSystem, PoisonPill, Props}
import language.postfixOps
import scala.concurrent.duration._
case object Ping
case object Pong
class Pinger extends Actor {
var countDown = 100
def receive = {
case Pong =>
println(s"${self.path} received pong, count down $countDown")
if (countDown > 0) {
countDown -= 1
sender() ! Ping
} else {
sender() ! PoisonPill
self ! PoisonPill
}
}
}
class Ponger(pinger: ActorRef) extends Actor {
def receive = {
case Ping =>
println(s"${self.path} received ping")
pinger ! Pong
}
}
object Application extends App {
val system = ActorSystem("pingpong")
val pinger = system.actorOf(Props[Pinger](), "pinger")
val ponger = system.actorOf(Props(classOf[Ponger], pinger), "ponger")
import system.dispatcher
system.scheduler.scheduleOnce(500 millis) {
ponger ! Ping
}
}
|
