sbt使用one-jar對scala統一打包成一個jar文件

使用one-jar

1) build.sbt文件,修改成如下內容

import com.github.retronym.SbtOneJar._
oneJarSettings
//上面是導入的onejar

name := "xxxx"

version := "1.0"

scalaVersion := "2.11.7"

//這個是須要運行的主類或者object
mainClass in oneJar  := Some("com.test.MainServer")

2) project\plugins.sbt

//添加插件依賴
addSbtPlugin("com.github.retronym" % "sbt-onejar" % "0.7")

3) project\Build.scala

import com.github.retronym.SbtOneJar
import sbt._
import sbt.Keys._


object Build extends Build {
  scalaVersion := "2.11.7"

  // 添加onejar設置
  def standardSettings = Seq(
    exportJars := true
  )
 // defaultSettings  自定義的,一些依賴或者參數,具體項目具體定義,也能夠去掉

   lazy val project = Project("xxxx",
    file("."),
    settings = defaultSettings ++ standardSettings ++ SbtOneJar.oneJarSettings
  )
}

4) 而後使用命令行進入當前代碼的目錄,啓動sbt,執行one-jar

 

> one-jar
[info] Updating {file:/E:/scalaProject/xxxxx/}xxxxxx...
Waiting for lock on C:\Users\xxxxxx\.ivy2\.sbt.ivy.lock to be available...
[info] Resolving jline#jline;2.12.1 ...
[info] Done updating.
[info] Packaging E:\scalaProject\xxxxxx\target\scala-2.11\xxxxxxx_2.11-1.0-one-jar.jar ...
[info] Done packaging.
[success] Total time: 10 s, completed 2016-xx-xx 11:41:00

最後查看一下這個jar包,因爲當前項目依賴比較多,文件比較大,有27M左右,

測試運行一下

java -jar  E:\scalaProject\xxxxxx\target\scala-2.11\xxxxxxx_2.11-1.0-one-jar.jar

很好,代碼啓動了.