scala通过akka的actor实现socket http server(NIO非阻塞模式)

1首先是sbt需要导入的依赖

name := "HttpServer"

version := "1.0"

scalaVersion := "2.11.8"


libraryDependencies ++= Seq(
  "com.typesafe.akka" %% "akka-actor" % "2.4.8" ,
  "com.typesafe.akka" %% "akka-agent" % "2.4.8",
  "com.typesafe.akka" %% "akka-slf4j" % "2.4.8",
  "com.typesafe.akka" %% "akka-testkit" % "2.4.8",
  "com.typesafe.akka" %% "akka-stream" % "2.4.8",
  "com.typesafe.akka" %% "akka-stream-testkit" % "2.4.8",
  "javax.servlet" % "javax.servlet-api" % "4.0.0-b06"
)

2 scala代码

import java.net.{InetSocketAddress}
import java.nio.ByteBuffer
import java.nio.channels.{ServerSocketChannel, SocketChannel}
import akka.actor.{Actor, ActorSystem, Props}

/**
  * Created by derek on 17-5-29.
  */
object NioAkkaHttpServer extends App{
  val system=ActorSystem("sys")
  val serverSocketChannel: ServerSocketChannel =ServerSocketChannel.open()
  serverSocketChannel.socket().setReuseAddress(true)
  serverSocketChannel.socket().bind(new InetSocketAddress(8080))
  val nioActor=system.actorOf(Props[NioHandler],"handler")
  while(true) {
    nioActor ! serverSocketChannel.accept()
  }
}

class NioHandler extends Actor{
  override def receive = {
    case socketchannel: SocketChannel=>
      val buffer = ByteBuffer.allocate(1024)
      socketchannel.read(buffer)
      buffer.flip()
      val  request = decode(buffer)
      val  temp = new StringBuffer
      temp.append("HTTP/1.1 200 OK\r\n")
      temp.append("Content-Type:text/html\r\n\r\n")
      println(request)
      val content=scala.io.Source.fromFile("/home/derek/Documents/test1.html").getLines().mkString
      temp.append("\r\n")
      temp.append(content)
      val  bytes = temp.toString.getBytes("UTF-8");
      socketchannel.write(ByteBuffer.wrap(bytes))
      socketchannel.shutdownOutput()
      socketchannel.close()
    case _=>
  }
  def decode(buffer:ByteBuffer)={
        new String(buffer.array())
  }
}

3 html提交请求到服务器

<html>
<body>

<h1>My First Heading</h1>

<p>My first paragraph.</p>
<form method="post" action="http://localhost:8080">
name:<input type="text" name="name" /><br>
age:<input type="text" name="age" /><br>
<input type="submit" />
</form>
</body>
</html>

4上面test1.html

<html>
<body>

<h1>My First Heading</h1>
<a href="http://www.w3school.com.cn">W3School</a>
<p>My first paragraph.</p>
</body>
</html>

5用webbench测试并发

webbench -c 300 -t 60 http://localhost:8080/
Webbench - Simple Web Benchmark 1.5
Copyright (c) Radim Kolar 1997-2004, GPL Open Source Software.

Benchmarking: GET http://localhost:8080/
300 clients, running 60 sec.

Speed=1848419 pages/min, 1386312 bytes/sec.
Requests: 1848419 susceed, 0 failed.

scala通过akka的actor实现socket http server(NIO非阻塞模式)

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