java环境变量配置

 java配置：

export JAVA_HOME=/home/jrsj/jdk1.6.0_25
export JRE_HOME=$JAVA_HOME/jre
export JAVA_BIN=$JAVA_HOME/bin
export JAVA_LIB=$JAVA_HOME/lib
export CLASSPATH=.:$JAVA_LIB/tools.jar:$JAVA_LIB/dt.jar
export PATH=$JAVA_BIN:$PATH

---

 mvn配置：

export PATH=/root/mvn/apache-maven-3.6.3/bin:$PATH