Actor 模型应用实例-Actor 间通讯

两个 Actor 的通讯机制原理图

目录结构：

代码：

AActor.scala

package com.akka.actors


import akka.actor.{Actor, ActorRef}

class AActor(actorRef: ActorRef) extends Actor {
  val bActorRef: ActorRef = actorRef

  override def receive: Receive = {
    case "start" => {
      println("AActor 出招了 , start ok")
      self ! "我打" //发给自己
    }
    case "我打" => {
      //给 BActor 发出消息
      //这里需要持有 BActor 的引用(BActorRef)
      println("AActor(黄飞鸿) 厉害 看我佛山无影脚")
      Thread.sleep(1000)
      bActorRef ! "我打" //给 BActor 发出消息
    }
  }
}

BActor.scala

package com.akka.actors

import akka.actor.Actor

class BActor extends Actor {
  override def receive: Receive = {
    case "我打" => {
      println("BActor(乔峰) 挺猛 看我降龙十八掌")
      Thread.sleep(1000)
      //通过 sender() 可以获取到发现消息的 actor 的 ref
      sender() ! "我打"
    }
  }
}

ActorGame.scala

package com.akka.actors

import akka.actor.{ActorRef, ActorSystem, Props}

/**
  * 启动类
  */
//100 招后，就退出
object ActorGame extends App {
  //创建 ActorSystem
  val actorfactory = ActorSystem("actorfactory")
  //先创建 BActor 引用/代理
  val bActorRef: ActorRef = actorfactory.actorOf(Props[BActor], "bActor")
  //创建 AActor 的引用
  val aActorRef: ActorRef = actorfactory.actorOf(Props(new AActor(bActorRef)), "aActor")
  //aActor 出招
  aActorRef ! "start"
}

pom.xml

<?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>akkademo1</groupId>
    <artifactId>akkademo1</artifactId>
    <version>1.0-SNAPSHOT</version>

        <!-- 定义一下常量 -->
        <properties>
            <encoding>UTF-8</encoding>
            <scala.version>2.11.8</scala.version>
            <scala.compat.version>2.11</scala.compat.version>
            <akka.version>2.4.17</akka.version>
        </properties>

        <dependencies>
            <!-- 添加scala的依赖 -->
            <dependency>
                <groupId>org.scala-lang</groupId>
                <artifactId>scala-library</artifactId>
                <version>${scala.version}</version>
            </dependency>

            <!-- 添加akka的actor依赖 -->
            <dependency>
                <groupId>com.typesafe.akka</groupId>
                <artifactId>akka-actor_${scala.compat.version}</artifactId>
                <version>${akka.version}</version>
            </dependency>

            <!-- 多进程之间的Actor通信 -->
            <dependency>
                <groupId>com.typesafe.akka</groupId>
                <artifactId>akka-remote_${scala.compat.version}</artifactId>
                <version>${akka.version}</version>
            </dependency>
        </dependencies>

        <!-- 指定插件-->
        <build>
            <!-- 指定源码包和测试包的位置 -->
            <sourceDirectory>src/main/scala</sourceDirectory>
            <testSourceDirectory>src/test/scala</testSourceDirectory>
            <plugins>
                <!-- 指定编译scala的插件 -->
                <plugin>
                    <groupId>net.alchim31.maven</groupId>
                    <artifactId>scala-maven-plugin</artifactId>
                    <version>3.2.2</version>
                    <executions>
                        <execution>
                            <goals>
                                <goal>compile</goal>
                                <goal>testCompile</goal>
                            </goals>
                            <configuration>
                                <args>
                                    <arg>-dependencyfile</arg>
                                    <arg>${project.build.directory}/.scala_dependencies</arg>
                                </args>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>

                <!--maven打包-->
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-shade-plugin</artifactId>
                    <version>2.4.3</version>
                    <executions>
                        <execution>
                            <phase>package</phase>
                            <goals>
                                <goal>shade</goal>
                            </goals>
                            <configuration>
                                <transformers>
                                    <transformer
                                            implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                        <resource>reference.conf</resource>
                                    </transformer>
                                    <transformer
                                            implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                        <!--<mainClass>test.MondoDBtoES</mainClass>-->
                                        <mainClass>com.akka.actors.ActorGame</mainClass>
                                        <!--<mainClass>AkkaServerApplication</mainClass>-->
                                        <!--<mainClass>AkkaClientApplication</mainClass>-->
                                    </transformer>
                                </transformers>
                                <filters>
                                    <filter>
                                        <artifact>*:*</artifact>
                                        <excludes>
                                            <exclude>META-INF/*.SF</exclude>
                                            <exclude>META-INF/*.DSA</exclude>
                                            <exclude>META-INF/*.RSA</exclude>
                                        </excludes>
                                    </filter>
                                </filters>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>

            </plugins>
        </build>

</project>

来源：oschina

链接：https://my.oschina.net/u/3730149/blog/4335945