一. 使用yum安装jdk
centos系统中可以使用yum来安装jdk, 执行以下命令 查询yum仓库信息
yum list java*java-1.8.0-openjdk.x86_64 1:1.8.0.422.b05-1.1.al7 @updates
java-1.8.0-openjdk-devel.x86_64 1:1.8.0.422.b05-1.1.al7 @updates
java-1.8.0-openjdk-headless.x86_64 1:1.8.0.422.b05-1.1.al7 @updates
javamail.noarch 1.4.6-8.1.al7 @base
javapackages-tools.noarch 3.4.1-11.1.al7 @base
javassist.noarch 3.16.1-10.1.al7 @base
Available Packages
java-1.6.0-openjdk.x86_64 1:1.6.0.41-1.13.13.1.1.al7 base
java-1.6.0-openjdk-debuginfo.x86_64 1:1.6.0.41-1.13.13.1.1.al7 base
java-1.6.0-openjdk-demo.x86_64 1:1.6.0.41-1.13.13.1.1.al7 base
java-1.6.0-openjdk-devel.x86_64 1:1.6.0.41-1.13.13.1.1.al7 base
java-1.6.0-openjdk-javadoc.x86_64 1:1.6.0.41-1.13.13.1.1.al7 base
java-1.6.0-openjdk-src.x86_64 1:1.6.0.41-1.13.13.1.1.al7 base
java-1.7.0-openjdk.x86_64 1:1.7.0.261-2.6.22.2.1.al7 updates
java-1.7.0-openjdk-accessibility.x86_64 1:1.7.0.261-2.6.22.2.1.al7 updates
java-1.7.0-openjdk-debuginfo.x86_64 1:1.7.0.261-2.6.22.2.1.al7 updates
java-1.7.0-openjdk-demo.x86_64 1:1.7.0.261-2.6.22.2.1.al7 updates
java-1.7.0-openjdk-devel.x86_64 1:1.7.0.261-2.6.22.2.1.al7 updates
java-1.7.0-openjdk-headless.x86_64 1:1.7.0.261-2.6.22.2.1.al7 updates
java-1.7.0-openjdk-javadoc.noarch 1:1.7.0.261-2.6.22.2.1.al7 updates
java-1.7.0-openjdk-src.x86_64 1:1.7.0.261-2.6.22.2.1.al7 updates
java-1.8.0-alibaba-dragonwell.x86_64 8.8.8.302.b1-1.al7 plus
java-1.8.0-alibaba-dragonwell-debug.x86_64 8.8.8.302.b1-1.al7 plus
java-1.8.0-alibaba-dragonwell-debuginfo.x86_64 8.8.8.302.b1-1.al7 plus
java-1.8.0-openjdk.i686 1:1.8.0.402.b06-1.1.al7 updates
java-1.8.0-openjdk-accessibility.i686 1:1.8.0.402.b06-1.1.al7 updates
java-1.8.0-openjdk-accessibility.x86_64 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-accessibility-debug.i686 1:1.8.0.402.b06-1.1.al7 updates
java-1.8.0-openjdk-accessibility-debug.x86_64 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-debug.i686 1:1.8.0.402.b06-1.1.al7 updates
java-1.8.0-openjdk-debug.x86_64 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-debuginfo.x86_64 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-demo.i686 1:1.8.0.402.b06-1.1.al7 updates
java-1.8.0-openjdk-demo.x86_64 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-demo-debug.i686 1:1.8.0.402.b06-1.1.al7 updates
java-1.8.0-openjdk-demo-debug.x86_64 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-devel.i686 1:1.8.0.402.b06-1.1.al7 updates
java-1.8.0-openjdk-devel-debug.i686 1:1.8.0.402.b06-1.1.al7 updates
java-1.8.0-openjdk-devel-debug.x86_64 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-headless.i686 1:1.8.0.402.b06-1.1.al7 updates
java-1.8.0-openjdk-headless-debug.i686 1:1.8.0.402.b06-1.1.al7 updates
java-1.8.0-openjdk-headless-debug.x86_64 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-javadoc.noarch 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-javadoc-debug.noarch 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-javadoc-zip.noarch 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-javadoc-zip-debug.noarch 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-src.i686 1:1.8.0.402.b06-1.1.al7 updates
java-1.8.0-openjdk-src.x86_64 1:1.8.0.422.b05-1.1.al7 updates
java-1.8.0-openjdk-src-debug.i686 1:1.8.0.402.b06-1.1.al7 updates
java-1.8.0-openjdk-src-debug.x86_64 1:1.8.0.422.b05-1.1.al7 updates
java-11-openjdk.i686 1:11.0.24.0.8-1.1.al7 updates
java-11-openjdk.x86_64 1:11.0.24.0.8-1.1.al7 updates
java-11-openjdk-debug.i686 1:11.0.24.0.8-1.1.al7 updates
java-11-openjdk-debug.x86_64 1:11.0.24.0.8-1.1.al7 updates
java-11-openjdk-debuginfo.x86_64 1:11.0.24.0.8-1.1.al7 updates
java-11-openjdk-demo.i686 1:11.0.24.0.8-1.1.al7 updates
java-11-openjdk-demo.x86_64 1:11.0.24.0.8-1.1.al7 updates
java-11-openjdk-demo-debug.i686 1:11.0.24.0.8-1.1.al7 updates
jyum install java-1.8.0-openjdk* -y/usr/lib/jvm
[root@iZbp1dcnzq7pzpg9607m6pZ jvm]# ll
total 8
lrwxrwxrwx 1 root root 26 Dec 13 16:59 java -> /etc/alternatives/java_sdk
lrwxrwxrwx 1 root root 32 Dec 13 16:59 java-1.8.0 -> /etc/alternatives/java_sdk_1.8.0
lrwxrwxrwx 1 root root 40 Dec 13 16:59 java-1.8.0-openjdk -> /etc/alternatives/java_sdk_1.8.0_openjdk
drwxr-xr-x 9 root root 4096 Dec 13 16:59 java-1.8.0-openjdk-1.8.0.422.b05-1.1.al7.x86_64
drwxr-xr-x 9 root root 4096 Dec 13 16:59 java-1.8.0-openjdk-1.8.0.422.b05-1.1.al7.x86_64-debug
lrwxrwxrwx 1 root root 34 Dec 13 16:59 java-openjdk -> /etc/alternatives/java_sdk_openjdk
lrwxrwxrwx 1 root root 21 Dec 13 16:59 jre -> /etc/alternatives/jre
lrwxrwxrwx 1 root root 27 Dec 13 16:59 jre-1.8.0 -> /etc/alternatives/jre_1.8.0
lrwxrwxrwx 1 root root 35 Dec 13 16:59 jre-1.8.0-openjdk -> /etc/alternatives/jre_1.8.0_openjdk
lrwxrwxrwx 1 root root 51 Dec 12 18:16 jre-1.8.0-openjdk-1.8.0.422.b05-1.1.al7.x86_64 -> java-1.8.0-openjdk-1.8.0.422.b05-1.1.al7.x86_64/jre
lrwxrwxrwx 1 root root 57 Dec 13 16:59 jre-1.8.0-openjdk-1.8.0.422.b05-1.1.al7.x86_64-debug -> java-1.8.0-openjdk-1.8.0.422.b05-1.1.al7.x86_64-debug/jre
lrwxrwxrwx 1 root root 29 Dec 13 16:59 jre-openjdk -> /etc/alternatives/jre_openjdk
[root@iZbp1dcnzq7pzpg9607m6pZ jvm]#
二. 使用源码安装jdk
下载jdk-8.0.16_linux-x64_bin.tar.gz
cd /usr/local
tar -xzvf jdk-8.0.16_linux-x64_bin.tar.gz
sudo vim /etc/profile
export JAVA_HOME=/usr/local/jdk-8.0.16
export JRE_HOME=$JAVA_HOME/jre
export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
source /etc/profile
java -version