在 Scala 解释器中包含 jar 文件
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Include jar file in Scala interpreter
提问by BefittingTheorem
Is it possible to include a jar file run running the Scala interpreter?
是否可以包含运行 Scala 解释器的 jar 文件？
My code is working when I compile from scalac:
当我从 scalac 编译时，我的代码正在运行：
scalac script.scala -classpath *.jar
But I would like to be able to include a jar file when running the interpreter.
但是我希望能够在运行解释器时包含一个 jar 文件。
采纳答案by Nikolay Ivanov
According to scala executable help all options of scalac are allowed ,
so you can run scala -classpath some.jar, i've just tried and it looks like it works
根据 scala 可执行文件帮助，scalac 的所有选项都是允许的，因此您可以运行scala -classpath some.jar，我刚刚尝试过，看起来它可以工作
回答by Eastsun
In scala2.8,you can use
在 scala2.8 中，你可以使用
scala>:jar JarName.jar
to add a jar to the classpath.
将 jar 添加到类路径。
In Scala 2.8.1, it is not :jar but :cp
在 Scala 2.8.1 中，它不是 :jar 而是 :cp
And in Scala 2.11.7 it is not :cp but :re(quire)
在 Scala 2.11.7 中它不是 :cp 而是 :re(quire)
回答by idonnie
Include multiple jars int Scala REPL 2.10.0-RC2
在 Scala REPL 2.10.0-RC2 中包含多个 jars
scala -classpath my_1st.jar:my_2nd.jar:my_3rd.jar
回答by Ehecatl
in my case i am using Scala code runner version 2.9.2. and i had to add quotation marks. I am using this jar files:
就我而言，我使用的是 Scala 代码运行器版本 2.9.2。我不得不加引号。我正在使用这个 jar 文件：
jdom-b10.jar, rome-0.9.jar
jdom-b10.jar、rome-0.9.jar
and everything goes fine with this:
一切顺利：
scala -classpath "*.jar" feedparser.scala
回答by Amit_P
In Scala version 2.11.6 from scala REPL use :require, can best be figured out by using :helpfrom REPL
在 Scala 版本 2.11.6 中来自 Scala REPL use :require，最好通过使用:help来自 REPL来弄清楚
For example:
例如：
$ scala
Welcome to Scala version 2.11.6 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_45).
Type in expressions to have them evaluated.
Type :help for more information.
scala> :require lift-json_2.11-3.0-M5-1.jar
Added '<path to lift json library>/lift-json/lift-json_2.11-3.0-M5-1.jar' to classpath.
回答by SparkZeus
Scala version 2.11.5:
Scala 版本 2.11.5：
Here is an example of adding all jars in your ivy cache:
这是在常春藤缓存中添加所有 jar 的示例：
scala -cp /Users/dbysani/.ivy2/cache/org.apache.spark/spark-streaming_2.10/jars/*
scala> import org.apache.spark.streaming.StreamingContext
import org.apache.spark.streaming.StreamingContext
You can also create a local folder of all the jars that you need to get added and add it in a similar way.
您还可以创建一个包含所有需要添加的 jar 的本地文件夹，并以类似的方式添加它。
Hope this helps.
希望这可以帮助。
回答by Joe
"lib/*.jar" generates a list with blank between items not ":" or ";" as required. Since Java 6 "lib/*" should work, but sometimes doesn't (classpath is set somewhere else)
"lib/*.jar" 生成一个列表，项目之间不是 ":" 或 ";" 按要求。由于 Java 6 "lib/*" 应该可以工作，但有时不能（类路径设置在其他地方）
I use a script like:
我使用一个脚本，如：
Windows:
@rem all *.jars in lib subdirectory @echo off set clp=. for %%c in (lib\*.jar) do call :Setclasspath %%c echo The classpath is %clp% scala -classpath %clp% script.scala exit /B %ERRORLEVEL% :Setclasspath set clp=%clp%;%~1 exit /B 0Linux:
#!/bin/bash #all *.jars in lib subdirectory clp="." for file in lib/* do clp="$clp:$file" done echo $clp scala -classpath $clp script.scala
视窗：
@rem all *.jars in lib subdirectory @echo off set clp=. for %%c in (lib\*.jar) do call :Setclasspath %%c echo The classpath is %clp% scala -classpath %clp% script.scala exit /B %ERRORLEVEL% :Setclasspath set clp=%clp%;%~1 exit /B 0Linux：
#!/bin/bash #all *.jars in lib subdirectory clp="." for file in lib/* do clp="$clp:$file" done echo $clp scala -classpath $clp script.scala
