Linux安装open jdk-优快云博客

本文详细介绍了如何在Linux环境下使用yum命令安装OpenJDK的运行环境和开发环境，并提供了具体的步骤和命令示例。同时，文章还指导了如何配置JAVA_HOME等环境变量，确保Java应用程序能够正确运行。

1、安装openjdk jre环境
yum install java-1.8.0-openjdk
2、安装openjdk开发环境
yum install java-1.8.0-openjdk-devel.x86_64

[root@lfgphicprb83334 jvm]# yum install java-1.8.0-openjdk-devel.x86_64
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package java-1.8.0-openjdk-devel.x86_64 1:1.8.0.222.b10-0.el7_6 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

============================================================================================================================================================================================================
 Package                                                   Arch                                    Version                                                   Repository                                Size
============================================================================================================================================================================================================
Installing:
 java-1.8.0-openjdk-devel                                  x86_64                                  1:1.8.0.222.b10-0.el7_6                                   updates                                  9.8 M

Transaction Summary
============================================================================================================================================================================================================
Install  1 Package

Total download size: 9.8 M
Installed size: 40 M
Is this ok [y/d/N]: y
Downloading packages:
java-1.8.0-openjdk-devel-1.8.0.222.b10-0.el7_6.x86_64.rpm                                                                                                                            | 9.8 MB  00:00:03     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : 1:java-1.8.0-openjdk-devel-1.8.0.222.b10-0.el7_6.x86_64                                                                                                                                  1/1 
  Verifying  : 1:java-1.8.0-openjdk-devel-1.8.0.222.b10-0.el7_6.x86_64                                                                                                                                  1/1 

Installed:
  java-1.8.0-openjdk-devel.x86_64 1:1.8.0.222.b10-0.el7_6                                                                                                                                                   

Complete!

配置环境变量

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.el7_6.x86_64
export JAVA_BIN=$JAVA_HOME/bin
export JAVA_LIB=$JAVA_HOME/lib
export CLASSPATH=.:$JAVA_LIB/tools.jar:$JAVA_LIB/dt.jar
export PATH=$JAVA_BIN:$PATH