CentOS之yum安裝JDK

JDK是 Java 語言的軟件開發工具包，主要用於移動設備、嵌入式設備上的java應用程序。JDK是整個java開發的核心，它包含了JAVA的運行環境（JVM+Java系統類庫）和JAVA工具。

1.查看雲端目前支持安裝的jdk版本

[root@localhost ~]# yum search java|grep jdk ldapjdk-javadoc.noarch : Javadoc for ldapjdk java-1.6.0-openjdk.x86_64 : OpenJDK Runtime Environment java-1.6.0-openjdk-demo.x86_64 : OpenJDK Demos java-1.6.0-openjdk-devel.x86_64 : OpenJDK Development Environment java-1.6.0-openjdk-javadoc.x86_64 : OpenJDK API Documentation java-1.6.0-openjdk-src.x86_64 : OpenJDK Source Bundle java-1.7.0-openjdk.x86_64 : OpenJDK Runtime Environment java-1.7.0-openjdk-accessibility.x86_64 : OpenJDK accessibility connector java-1.7.0-openjdk-demo.x86_64 : OpenJDK Demos java-1.7.0-openjdk-devel.x86_64 : OpenJDK Development Environment java-1.7.0-openjdk-headless.x86_64 : The OpenJDK runtime environment without java-1.7.0-openjdk-javadoc.noarch : OpenJDK API Documentation java-1.7.0-openjdk-src.x86_64 : OpenJDK Source Bundle java-1.8.0-openjdk.i686 : OpenJDK Runtime Environment java-1.8.0-openjdk.x86_64 : OpenJDK Runtime Environment java-1.8.0-openjdk-accessibility.i686 : OpenJDK accessibility connector java-1.8.0-openjdk-accessibility.x86_64 : OpenJDK accessibility connector java-1.8.0-openjdk-accessibility-debug.i686 : OpenJDK accessibility connector java-1.8.0-openjdk-accessibility-debug.x86_64 : OpenJDK accessibility connector java-1.8.0-openjdk-debug.i686 : OpenJDK Runtime Environment with full debug on java-1.8.0-openjdk-debug.x86_64 : OpenJDK Runtime Environment with full debug on java-1.8.0-openjdk-demo.i686 : OpenJDK Demos java-1.8.0-openjdk-demo.x86_64 : OpenJDK Demos java-1.8.0-openjdk-demo-debug.i686 : OpenJDK Demos with full debug on java-1.8.0-openjdk-demo-debug.x86_64 : OpenJDK Demos with full debug on java-1.8.0-openjdk-devel.i686 : OpenJDK Development Environment java-1.8.0-openjdk-devel.x86_64 : OpenJDK Development Environment java-1.8.0-openjdk-devel-debug.i686 : OpenJDK Development Environment with full java-1.8.0-openjdk-devel-debug.x86_64 : OpenJDK Development Environment with java-1.8.0-openjdk-headless.i686 : OpenJDK Runtime Environment java-1.8.0-openjdk-headless.x86_64 : OpenJDK Runtime Environment java-1.8.0-openjdk-headless-debug.i686 : OpenJDK Runtime Environment with full java-1.8.0-openjdk-headless-debug.x86_64 : OpenJDK Runtime Environment with full java-1.8.0-openjdk-javadoc.noarch : OpenJDK API Documentation java-1.8.0-openjdk-javadoc-debug.noarch : OpenJDK API Documentation for packages java-1.8.0-openjdk-javadoc-zip.noarch : OpenJDK API Documentation compressed in java-1.8.0-openjdk-javadoc-zip-debug.noarch : OpenJDK API Documentation java-1.8.0-openjdk-src.i686 : OpenJDK Source Bundle java-1.8.0-openjdk-src.x86_64 : OpenJDK Source Bundle java-1.8.0-openjdk-src-debug.i686 : OpenJDK Source Bundle for packages with java-1.8.0-openjdk-src-debug.x86_64 : OpenJDK Source Bundle for packages with ldapjdk.noarch : The Mozilla LDAP Java SDK

2.選擇版本後，安裝（執行如下命令會自動安裝jdk相關依賴

[root@localhost ~]#  yum install -y java-1.8.0-openjdk 已加載插件：fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.zju.edu.cn * extras: mirror.bit.edu.cn * updates: mirrors.aliyun.com 正在解決依賴關係 --> 正在檢查事務 ---> 軟件包 java-1.8.0-openjdk.x86_64.1.1.8.0.151-5.b12.el7_4 將被 安裝 --> 正在處理依賴關係 java-1.8.0-openjdk-headless(x86-64) = 1:1.8.0.151-5.b12.el7_4，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 xorg-x11-fonts-Type1，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libpng15.so.15(PNG15_0)(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libjvm.so(SUNWprivate_1.1)(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libjpeg.so.62(LIBJPEG_6.2)(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libjli.so(SUNWprivate_1.1)(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libjava.so(SUNWprivate_1.1)(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 fontconfig(x86-64)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libpng15.so.15()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libjvm.so()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libjpeg.so.62()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libjli.so()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libjava.so()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libgif.so.4()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libawt.so()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libXtst.so.6()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libXrender.so.1()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libXi.so.6()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libXext.so.6()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libXcomposite.so.1()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 --> 正在處理依賴關係 libX11.so.6()(64bit)，它被軟件包 1:java-1.8.0-openjdk-1.8.0.151-5.b12.el7_4.x86_64 須要 ... ...

3.安裝完成，驗證是否安裝成功

[root@lo