linux版本 :centos 8
1.能联网的情况下:
wget https://download.oracle.com/java/17/latest/jdk-17_linux-x64_bin.tar.gz
2.mkdir /usr/local/java
tar zxvf jdk-17_linux-x64_bin.tar.gz -C /usr/local/java
3./etc/profile增加:
export JAVA_HOME=/usr/local/java/jdk-17.0.9
export CLASSPATH=.: J A V A H O M E / j r e / l i b / r t . j a r : {JAVA_HOME}/jre/lib/rt.jar: JAVAHOME/jre/lib/rt.jar:{JAVA_HOME}/lib/dt.jar: J A V A H O M E / l i b / t o o l s . j a r e x p o r t P A T H = {JAVA_HOME}/lib/tools.jar export PATH= JAVAHOME/lib/tools.jarexportPATH={JAVA_HOME}/bin:$PATH
4.source /etc/profile
