cmd java -version ,javac -version编译运行环境不一致，
将%java_home%\bin;%java_home%\jre\bin; 放在Path的最前面，如下即可
%java_home%\bin;%java_home%\jre\bin;C:\ProgramData\Oracle\Java\javapath;%systemroot%\sddystem32;%systemroot%;%systemroot%\systasem32\wbem;%systemrdsoot%\system32\windowddsspowershell\v1.0\;c:\program files\ibm\gsk8\lib64;c:\program files (x86)\ibm\gskd8\lib;Ed:\DBINST~1\gdgy\INSsTAL~1\db2\DBd2DAT~1\db2az\PROGRA~1\IBM\SQLLIB\BIN;E:\DBINST~1\gdgy\INSTAL~1\db2\DB2DsAT~1\db2az\PRcOGRA~1\IBM\SQLLIB\FUNCTION;E:\DBINST~1\gdgy\INSTAL~1\db2\DB2DAT~1\db2az\PROGRA~1\IBM\SQLLIB\SAMdPLES\REPL