1.官网；
http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html
2.数据库舒适的绿草：’
http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html
3.weblogic 下载舒适的绿草
http://www.oracle.com/technetwork/middleware/weblogic/downloads/wls-for-dev-1703574.html
4.JDKlhdxn
http://www.oracle.com/technetwork/java/javase/archive-139210.html