Java
如何在 Solaris 中設置預設 java?
我剛剛安裝了最新的java
/usr/jdk/jdk1.6.0_30
現在如何使這個 java 成為整個作業系統的預設 java?截至目前,它仍在使用 java 1.5
謝謝。
找到了…
$which java /usr/bin/java $ls -ld /usr/bin/java lrwxrwxrwx 1 root other 16 Apr 8 12:41 /usr/bin/java -> ../java/bin/java $rm /usr/bin/java $ln -s /usr/jdk/jdk1.6.0_27/bin/java /usr/bin/java $java -version java version "1.6.0_27" Java(TM) SE Runtime Environment (build 1.6.0_27-b07) Java HotSpot(TM) Server VM (build 20.2-b06, mixed mode)
我覺得僅僅改變符號連結
/usr/bin/java
是不夠的,因為 /usr/bin 中有不止一個 Java 符號連結:# ls -l /usr/bin/java* lrwxrwxrwx 1 root other 16 May 21 2015 /usr/bin/java -> ../java/bin/java lrwxrwxrwx 1 root other 17 May 21 2015 /usr/bin/javac -> ../java/bin/javac lrwxrwxrwx 1 root other 19 May 21 2015 /usr/bin/javadoc -> ../java/bin/javadoc lrwxrwxrwx 1 root other 17 May 21 2015 /usr/bin/javah -> ../java/bin/javah lrwxrwxrwx 1 root other 17 May 21 2015 /usr/bin/javap -> ../java/bin/javap lrwxrwxrwx 1 root other 18 Jul 21 2015 /usr/bin/javaws -> ../java/bin/javaws
相反,我會利用它
/usr/java
本身就是一個符號連結的事實並替換它而不是 6+ 其他。以下是我將 JDK 8 設為預設值的方法:# cd /usr # rm java # ln -s jdk/jdk1.8.0_121 java # java -version java version "1.8.0_121" Java(TM) SE Runtime Environment (build 1.8.0_121-b13)