The Weblogic 10.3.6 application cannot be opened.

1. The database connection information is not configured correctly. Check the database connection information, including the database address, port, user name and password.

2, database connection pool problem, check whether the database connection pool configuration is correct, whether the connection in the connection pool has been exhausted or failed.

3, the database service problem, check whether the database service is running normally, whether the network is smooth.