1、檢查一下系統中的jdk版本
[root@localhost software]# java -version
顯示:
openjdk version "1.8.0_102"OpenJDK Runtime Environment (build 1.8.0_102-b14) OpenJDK 64-Bit Server VM (build 25.102-b14, mixed mode)
[root@localhost software]# rpm -qa | grep java
java-1.7.0-openjdk-1.7.0.111-2.6.7.8.el7.x86_64 python-javapackages-3.4.1-11.el7.noarch tzdata-java-2016g-2.el7.noarch javapackages-tools-3.4.1-11.el7.noarch java-1.8.0-openjdk-1.8.0.102-4.b14.el7.x86_64 java-1.8.0-openjdk-headless-1.8.0.102-4.b14.el7.x86_64 java-1.7.0-openjdk-headless-1.7.0.111-2.6.7.8.el7.x86_64
[root@localhost software]# rpm -e --nodeps tzdata-java-2016g-2.el7.noarch[root@localhost software]# rpm -e --nodeps java-1.7.0-openjdk-1.7.0.111-2.6.7.8.el7.x86_64[root@localhost software]# rpm -e --nodeps java-1.7.0-openjdk-headless-1.7.0.111-2.6.7.8.el7.x86_64[root@localhost software]# rpm -e --nodeps java-1.8.0-openjdk-1.8.0.102-4.b14.el7.x86_64[root@localhost software]# rpm -e --nodeps java-1.8.0-openjdk-headless-1.8.0.102-4.b14.el7.x86_64
[root@localhost software]# rpm -qa | grep javapython-javapackages-3.4.1-11.el7.noarch javapackages-tools-3.4.1-11.el7.noarch
[root@localhost software]# lltotal 252664 -rw-r--r--. 1 root root 11830603 Jun 9 06:43 alibaba-rocketmq-3.2.6.tar.gz-rw-r--r--. 1 root root 43399561 Jun 9 06:42 apache-activemq-5.11.1-bin.tar.gz-rwxrw-rw-. 1 root root 185540433 Apr 21 09:06 jdk-8u131-linux-x64.tar.gz-rw-r--r--. 1 root root 1547695 Jun 9 06:44 redis-3.2.9.tar.gz-rw-r--r--. 1 root root 16402010 Jun 9 06:40 zookeeper-3.4.5.tar.gz
[root@localhost software]# mkdir -p /usr/lib/jvm[root@localhost software]# tar -zxvf jdk-8u131-linux-x64.tar.gz -C /usr/lib/jvm
[root@localhost software]# vim /etc/profile
export JAVA_HOME=/usr/lib/jvm/jdk1.8.0_131 export JRE_HOME=${JAVA_HOME}/jre export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib export PATH=${JAVA_HOME}/bin:$PATH
[root@localhost software]# source /etc/profile
7、檢查新安裝的jdk
[root@localhost software]# java -version
java version "1.8.0_131"Java(TM) SE Runtime Environment (build 1.8.0_131-b11) Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)
以上是Linux安裝JDK實現的步驟詳解的詳細內容。更多資訊請關注PHP中文網其他相關文章!