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[root@eric01 ~]# yum search java-1.8.0|grep openjdk
Repository epel is listed more than once in the configurationRepository epel-debuginfo is listed more than once in the configurationRepository epel-source is listed more than once in the configurationRepodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fastjava-1.8.0-openjdk.i686 : OpenJDK Runtime Environmentjava-1.8.0-openjdk.x86_64 : OpenJDK Runtime Environmentjava-1.8.0-openjdk-accessibility.i686 : OpenJDK accessibility connectorjava-1.8.0-openjdk-accessibility.x86_64 : OpenJDK accessibility connectorjava-1.8.0-openjdk-accessibility-debug.i686 : OpenJDK accessibility connectorjava-1.8.0-openjdk-accessibility-debug.x86_64 : OpenJDK accessibility connectorjava-1.8.0-openjdk-debug.i686 : OpenJDK Runtime Environment with full debug onjava-1.8.0-openjdk-debug.x86_64 : OpenJDK Runtime Environment with full debug onjava-1.8.0-openjdk-demo.i686 : OpenJDK Demosjava-1.8.0-openjdk-demo.x86_64 : OpenJDK Demosjava-1.8.0-openjdk-demo-debug.i686 : OpenJDK Demos with full debug onjava-1.8.0-openjdk-demo-debug.x86_64 : OpenJDK Demos with full debug onjava-1.8.0-openjdk-devel.i686 : OpenJDK Development Environmentjava-1.8.0-openjdk-devel.x86_64 : OpenJDK Development Environmentjava-1.8.0-openjdk-devel-debug.i686 : OpenJDK Development Environment with fulljava-1.8.0-openjdk-devel-debug.x86_64 : OpenJDK Development Environment withjava-1.8.0-openjdk-headless.i686 : OpenJDK Runtime Environmentjava-1.8.0-openjdk-headless.x86_64 : OpenJDK Runtime Environmentjava-1.8.0-openjdk-headless-debug.i686 : OpenJDK Runtime Environment with fulljava-1.8.0-openjdk-headless-debug.x86_64 : OpenJDK Runtime Environment with fulljava-1.8.0-openjdk-javadoc.noarch : OpenJDK API Documentationjava-1.8.0-openjdk-javadoc-debug.noarch : OpenJDK API Documentation for packagesjava-1.8.0-openjdk-javadoc-zip.noarch : OpenJDK API Documentation compressed injava-1.8.0-openjdk-javadoc-zip-debug.noarch : OpenJDK API Documentationjava-1.8.0-openjdk-src.i686 : OpenJDK Source Bundlejava-1.8.0-openjdk-src.x86_64 : OpenJDK Source Bundlejava-1.8.0-openjdk-src-debug.i686 : OpenJDK Source Bundle for packages withjava-1.8.0-openjdk-src-debug.x86_64 : OpenJDK Source Bundle for packages with
yum -y install java-1.8.0-openjdk.x86_64 java-1.8.0-openjdk-devel.x86_64
安裝完成后openjdk的文件存放在/usr/lib/jvm
[root@eric01 jvm]# pwd/usr/lib/jvm[root@eric01 jvm]# ll总用量 0lrwxrwxrwx 1 root root 26 11月 26 22:39 java -> /etc/alternatives/java_sdklrwxrwxrwx 1 root root 32 11月 26 22:39 java-1.8.0 -> /etc/alternatives/java_sdk_1.8.0lrwxrwxrwx 1 root root 40 11月 26 22:39 java-1.8.0-openjdk -> /etc/alternatives/java_sdk_1.8.0_openjdkdrwxr-xr-x 7 root root 68 11月 26 22:39 java-1.8.0-openjdk-1.8.0.191.b12-0.el7_5.x86_64lrwxrwxrwx 1 root root 34 11月 26 22:39 java-openjdk -> /etc/alternatives/java_sdk_openjdklrwxrwxrwx 1 root root 21 11月 26 22:39 jre -> /etc/alternatives/jrelrwxrwxrwx 1 root root 27 11月 26 22:39 jre-1.8.0 -> /etc/alternatives/jre_1.8.0lrwxrwxrwx 1 root root 35 11月 26 22:39 jre-1.8.0-openjdk -> /etc/alternatives/jre_1.8.0_openjdklrwxrwxrwx 1 root root 51 11月 26 22:39 jre-1.8.0-openjdk-1.8.0.191.b12-0.el7_5.x86_64 -> java-1.8.0-openjdk-1.8.0.191.b12-0.el7_5.x86_64/jrelrwxrwxrwx 1 root root 29 11月 26 22:39 jre-openjdk -> /etc/alternatives/jre_openjdk
#java environmentexport JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.191.b12-0.el7_5.x86_64export JRE_HOME=$JAVA_HOME/jreexport CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/jre/lib/tools.jar:$JRE_HOME/lib:$CLASSPATHexport PATH=$JAVA_HOME/bin:$PATH更新环境变量：source /etc/profile
查看java版本
[root@eric01 classes]# java -versionopenjdk version "1.8.0_191"OpenJDK Runtime Environment (build 1.8.0_191-b12)OpenJDK 64-Bit Server VM (build 25.191-b12, mixed mode)
至此，openjdk1.8安装配置完成。
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