2 回答運行啟動類時出現'entityManagerFactory' that could not be found.

2 回答postman出現500錯誤？

1 回答運行報錯,提示 failed to configure a DataSource : 'url' arrtibute is not specified and no embedded datasource could be configured

2 回答Could not autowrite. No bean of 'UserRepository' type found

1 回答我的postman出現的這個問題是為什么，求解答