Olá, pessoal
Meu projeto aparece a tela inicial no endereço http://localhost:8080/, mas ao clicar em listar alunos (http://localhost:8080/aluno), aparece a mensagem abaixo:
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Tue Feb 16 10:32:23 BRT 2021
There was an unexpected error (type=Internal Server Error, status=500).
Could not open connection; nested exception is org.hibernate.exception.GenericJDBCException: Could not open connectionhttps://github.com/thiagornela/agenda
O que poderia ser?
