java环境变量配置
CLASSPATH .;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar;
JAVA_HOME D:\jdk1.8.0_221
MAVEN_HOME D:\javaTools\apache-maven-3.6.2
MYSQL_HOME D:\mysql-5.7.29-winx64
Path %USERPROFILE%\AppData\Local\Microsoft\WindowsApps;%MAVEN_HOME%\bin;%JAVA_HOME%\bin;%MYSQL_HOME%\bin;
TEMP %USERPROFILE%\AppData\Local\Temp