打开命令提示符，依次运行以下命令：
set ORACLE_HOSTNAME=%COMPUTERNAME%
set ORACLE_UNQNAME=orcl
rem 指向 dbhome_1\oc4j\j2ee\OC4J_DBConsole_%ORACLE_HOSTNAME%_%ORACLE_UNQNAME%目录 emctl unsecure dbconsole
emctl start dbconsole
改回HTTPS
emctl secure dbconsole
emctl start dbconsole