maven jdk的环境变量配置 export JAVA_HOME=/usr/local/jdk-9.0.1 export PATH=$PATH:$JAVA_HOME/bin export CLASSPATH=.:$JAVA_HOME/jre/lib:$JAVA_HOME/lib:$JAVA_HOME/lib/tools.jar export MAVEN_HOME=/usr/local/maven export PATH=$MAVEN_HOME/bin:$PATH