Scala SBT:独立罐 [英] Scala SBT: standalone jar
问题描述
答案:使用简单构建工具制作独立jar 似乎是我所需要的，但它没有对我来说足够的信息，所以这是跟进.
The answer: Making stand-alone jar with Simple Build Tool seems like what I need, but it did not have enough information for me, so this is a followup.
(1)如何使答案适应我的需要?我不知道需要更改什么.
(1) How do I adapt the answer to my need? I don't understand what would need to be changed.
(2)我要运行什么命令来创建独立的jar?
(2) What command do I run to create the standalone jar?
(3)创建罐子后，在哪里可以找到?
(3) Where can I find the jar after it has been created?
我尝试过的事情:
-
将链接的答案中的代码逐字粘贴到我的
project/build/dsg.scala文件中.该文件现在有一个
Pasting the code in the linked answer verbatim into my:
project/build/dsg.scalafile. The file now has a
class ForkRun(info: ProjectInfo) extends DefaultProject(info)
(从以前开始，用于在与SBT不同的VM中运行项目)和新的:
(from before, used for running projects in a separate VM from SBT) and the new:
trait AssemblyProject extends BasicScalaProject
来自链接的答案.
我还尝试将主体(AssemblyProject的所有defs和lazy val都粘贴到ForkRun的主体中.
I also tried pasting the body (all defs and the lazy val of the AssemblyProject into the body of ForkRun.
要创建一个jar，我在SBT提示符下运行了package并得到:
To create a jar I ran package at the SBT prompt and get:
[info] Packaging ./target/scala_2.8.1/dsg_2.8.1-1.0.jar ...
[info] Packaging complete.
所以我尝试通过以下命令从外壳运行dsg_2.8.1-1.0.jar:
So I tried running the dsg_2.8.1-1.0.jar from the shell via:
java -jar dsg_2.8.1-1.0.jar
但是我得到了
Failed to load Main-Class manifest attribute from
dsg_2.8.1-1.0.jar
这可能是由于我的项目中有多个入口点引起的吗?当我从SBT提示符执行run时，从列表中选择.也许我在创建程序包时需要指定默认值?
Could this be caused by having multiple entry points into my project? I select from a list when I execute run from the SBT prompt. Perhaps I need to specify the default when creating the package?
推荐答案
这是我用一种方法制作的带有SBT的可执行jar的文章:
Here's a writeup I did on one way to make an executable jar with SBT:
http://janxspirit.blogspot.com/2011/01 /create-executable-scala-jar-with-sbt.html
这篇关于Scala SBT:独立罐的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
