安装目录:C:Program FilesJavajdk1.8.0_131
1.JAVA_HOME(必须)
C:Program FilesJavajdk1.8.0_131
2.CLASSPATH(1.5后,可不配置,非必须)
.;%JAVA_HOME%libdt.jar;%JAVA_HOME%lib ools.jar;
3.path(必须)
%JAVA_HOME%in;%JAVA_HOME%jrein;
或者
C:Program FilesJavajdk1.8.0_131in;C:Program FilesJavajdk1.8.0_131jrein;