- scala 2.12.4
- sbt 0.14.6
- scalatra 2.6.2
- 开发工具 vim
参考自：
http://scalatra.org/getting-started/first-project.html
http://scalatra.org/guides/2.4/deployment/standalone.html
./build.sbt
val ScalatraVersion = "2.6.2"
organization := "com.example"
name := "My Scalatra Web App"
version := "0.1.0-SNAPSHOT"
scalaVersion := "2.12.4"
resolvers += Classpaths.typesafeReleases
libraryDependencies ++= Seq(
"org.scalatra" %% "scalatra" % ScalatraVersion,
"org.scalatra" %% "scalatra-scalatest" % ScalatraVersion % "test",
"ch.qos.logback" % "logback-classic" % "1.1.5" % "runtime",
"javax.servlet" % "javax.servlet-api" % "3.1.0" % "provided",
"org.eclipse.jetty" % "jetty-webapp" % "9.2.15.v20160210" % "container;compile"
)
enablePlugins(SbtTwirl)
enablePlugins(ScalatraPlugin)
./project/plugins.sbt
addSbtPlugin("com.typesafe.sbt" % "sbt-twirl" % "1.3.12")
addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.14.6")//sbt的assembly打包插件支持
addSbtPlugin("org.scalatra.sbt" % "sbt-scalatra" % "1.0.1")
- 创建jetty启动器
1 package com.example.app
2
3 import org.eclipse.jetty.server.Server
4 import org.eclipse.jetty.servlet.{DefaultServlet, ServletContextHandler}
5 import org.eclipse.jetty.webapp.WebAppContext
6 import org.scalatra.servlet.ScalatraListener
7
8 object JettyLauncher { // this is my entry object as specified in sbt project definition
9 def main(args: Array[String]) {
10 val port = if(System.getenv("PORT") != null) System.getenv("PORT").toInt else 8080
11
12 val server = new Server(port)
13 val context = new WebAppContext()
14 context setContextPath "/"
15 context.setResourceBase("src/main/webapp")
16 context.addEventListener(new ScalatraListener)
17 context.addServlet(classOf[MyScalatraServlet], "/*")
18 context.addServlet(classOf[LoginServlet], "/login")
19 server.setHandler(context)
20
21 server.start
22 server.join
23 }
24 }
- LoginServlet.scala
1 package com.example.app
2
3 import org.scalatra._
4
5 class LoginServlet extends ScalatraServlet {
6
7 get("/") {
8 println("Test")
9 "Hi LoginServlet:GET!\n"
10 }
11
12 }
- MyScalatraServlet.scala
1 package com.example.app
2
3 import org.scalatra._
4 import java.util.concurrent.TimeUnit
5
6 class MyScalatraServlet extends ScalatraServlet {
7
8 get("/") {
9 TimeUnit.SECONDS.sleep(3)
10 "Hi MyScalatraServlet:GET!\n"
11 }
12
13 }
ScalatraBootstrap.scala
import com.example.app._
import org.scalatra._
import javax.servlet.ServletContext
import com.example.app.MyScalatraServlet
import com.example.app.LoginServlet
class ScalatraBootstrap extends LifeCycle {
override def init(context: ServletContext) {
context.mount(new MyScalatraServlet, "/*")
context.mount(new LoginServlet, "/login")
}
}
- 运行
[root@xxy-srv-test-01 my-scalatra-web-app]# sbt
[info] Loading settings from plugins.sbt ...
[info] Loading project definition from /data1/taohui/hi_scala/my-scalatra-web-app/project
[info] Loading settings from build.sbt ...
[info] Set current project to My Scalatra Web App (in build file:/data1/taohui/hi_scala/my-scalatra-web-app/)
[info] sbt server started at 127.0.0.1:5741
sbt:My Scalatra Web App>
sbt:My Scalatra Web App> jetty:start
[info] Updating {file:/data1/taohui/hi_scala/my-scalatra-web-app/}my-scalatra-web-app...
[info] Done updating.
[info] starting server ...
2017-12-26 15:54:39.445:INFO::main: Logging initialized @185ms to org.eclipse.jetty.util.log.StdErrLog
[success] Total time: 3 s, completed Dec 26, 2017 3:54:39 PM
2017-12-26 15:54:39.456:INFO:oejr.Runner:main: Runner
sbt:My Scalatra Web App> 2017-12-26 15:54:39.679:INFO:oejs.Server:main: jetty-9.4.6.v20170531
2017-12-26 15:54:41.777:INFO:oeja.AnnotationConfiguration:main: Scanning elapsed time=1806ms
2017-12-26 15:54:42.174:INFO:oejs.session:main: DefaultSessionIdManager workerName=node0
2017-12-26 15:54:42.174:INFO:oejs.session:main: No SessionScavenger set, using defaults
2017-12-26 15:54:42.178:INFO:oejs.session:main: Scavenging every 600000ms
15:54:42.247 [main] INFO o.scalatra.servlet.ScalatraListener - The cycle class name from the config: ScalatraBootstrap
15:54:42.600 [main] INFO o.scalatra.servlet.ScalatraListener - Initializing life cycle class: ScalatraBootstrap
2017-12-26 15:54:42.804:INFO:oejsh.ContextHandler:main: Started o.e.j.w.WebAppContext@5d3411d{/,file:///data1/taohui/hi_scala/my-scalatra-web-app/target/webapp/,AVAILABLE}{file:///data1/taohui/hi_scala/my-scalatra-web-app/target/webapp/}
2017-12-26 15:54:42.824:INFO:oejs.AbstractConnector:main: Started ServerConnector@306cf3ea{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}
2017-12-26 15:54:42.825:INFO:oejs.Server:main: Started @3568ms
jetty:start
- jetty容器独立部署 [sbt-shell窗口下]
使用sbt的assembly进行项目打包
[info] SHA-1: b2ce657adc3335fe018621166ef763419031cb9c
[info] Packaging /data1/taohui/hi_scala/my-scalatra-web-app/target/scala-2.12/My Scalatra Web App-assembly-0.1.0-SNAPSHOT.jar ...
[info] Done packaging.
[success] Total time: 9 s, completed Dec 26, 2017 3:55:24 PM
sbt:My Scalatra Web App>
- 备注
jetty容器上运行，需要添加对应的jetty依赖和sbt的assembly插件支持，配置明细见上，输出jar包后直接java -jar.jar，即可运行。