cannot add a jar to scala repl with the :cp command
If I issue:
$ scala -classpath poi-3.9/poi-3.9-20121203.jar
scala> import org.apache.poi.hssf.usermodel.HSSFSheet
import org.apache.poi.hssf.usermodel.HSSFSheet
Everything works ok, but if instead I issue:
$ scala
scala> :cp poi-3.9/poi-3.9-20121203.jar
Added '/home/sas/tmp/poi/poi-3.9/poi-3.9-20121203.jar'. Your new classpath is:
".:/home/sas/tmp/poi/poi-3.9/poi-3.9-20121203.jar"
Nothing to replay.
scala> import org.apache.poi.hssf.usermodel.HSSFSheet
<console>:7: error: object apache is not a member of package org
import org.apache.poi.hssf.usermodel.HSSFSheet
^
Am I missing something?
似乎没有人提到这一点，但正确的解决方案是使用:require命令：
scala> :require foo.jar
Added 'foo.jar' to classpath.
Another way to get jar files imported, in this case by default, is to add links in $SCALA_HOME/lib to the jar files of interest. Then every time you enter REPL, such linked jars will be uploaded.
For instance, for poi-3.9-20121203.jar , consider
(cd $SCALA_HOME/lib && ln -s full_path_to_poi_jar/poi-3.9-20121203.jar)
As noted in the comments, this is a known issue. You could use an alternative REPL implementation such as Ammonite.
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