1、找到oracle安装目录下的jdk,如：E:appAdministratorproduct11.2.0dbhome_1jdk
2、找到oracle安装目录下的developer路径：E:appAdministratorproduct11.2.0dbhome_1sqldevelopersqldeveloperinsqldeveloper.conf
SetJavaHome E:appAdministratorproduct11.2.0dbhome_1jdk
参考：https://zhidao.baidu.com/question/468239727.html