有没有一种快速切换所有与Java相关的替代方案的方法,使用update-alternatives
?
例如,如果想将Java切换到7,我运行sudo update-alternatives --config java
并选择Java 7 OpenJDK。但是,如果我运行update-alternatives --get-selections | grep java
,我会得到以下结果:
appletviewer auto /usr/lib/jvm/java-6-openjdk-amd64/bin/appletviewer
extcheck auto /usr/lib/jvm/java-6-openjdk-amd64/bin/extcheck
idlj auto /usr/lib/jvm/java-6-openjdk-amd64/bin/idlj
itweb-settings auto /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/itweb-settings
jar auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jar
jarsigner auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jarsigner
java manual /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java
javac auto /usr/lib/jvm/java-6-openjdk-amd64/bin/javac
javadoc auto /usr/lib/jvm/java-6-openjdk-amd64/bin/javadoc
javah auto /usr/lib/jvm/java-6-openjdk-amd64/bin/javah
javap auto /usr/lib/jvm/java-6-openjdk-amd64/bin/javap
javaws auto /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/javaws
jconsole auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jconsole
jdb auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jdb
jexec auto /usr/lib/jvm/java-6-openjdk-amd64/jre/lib/jexec
jhat auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jhat
jinfo auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jinfo
jmap auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jmap
jps auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jps
jrunscript auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jrunscript
jsadebugd auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jsadebugd
jstack auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jstack
jstat auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jstat
jstatd auto /usr/lib/jvm/java-6-openjdk-amd64/bin/jstatd
keytool auto /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/keytool
native2ascii auto /usr/lib/jvm/java-6-openjdk-amd64/bin/native2ascii
orbd auto /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/orbd
pack200 auto /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/pack200
policytool auto /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/policytool
rmic auto /usr/lib/jvm/java-6-openjdk-amd64/bin/rmic
rmid auto /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/rmid
rmiregistry auto /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/rmiregistry
schemagen auto /usr/lib/jvm/java-6-openjdk-amd64/bin/schemagen
serialver auto /usr/lib/jvm/java-6-openjdk-amd64/bin/serialver
servertool auto /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/servertool
tnameserv auto /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/tnameserv
unpack200 auto /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/unpack200
wsgen auto /usr/lib/jvm/java-6-openjdk-amd64/bin/wsgen
wsimport auto /usr/lib/jvm/java-6-openjdk-amd64/bin/wsimport
xjc auto /usr/lib/jvm/java-6-openjdk-amd64/bin/xjc
如您所见,我的Java替代方案已切换到7,但基于OpenJDK 6的其他替代方案并未切换。我可以手动切换每个替代方案或编写脚本来完成此操作,但我相信有更好的方法来实现这一目标。
update-java-alternatives
会更改所有其他的Java替代方案,即使插件设置出现错误。 - daniel kullmannupdate-java-alternatives --set java-1.8.0-openjdk-amd64
后,我仍然有default-java -> /usr/lib/jvm/java-7-oracle
。这是由于no alternatives for mozilla-javaplugin.so
错误引起的吗?我该如何改变这个呢? - lony