I made my project using spring website with the following options:- gradle project, java, spring boot version 2.4.5, java version 8, dependencies:- Spring Web, Thymeleaf, Spring Data API
您的項目中似乎沒有可用的 JDBC 驅動程序。When you choose the Spring Data JPA dependency from Spring Initializr, you also need to add a database driver (for example, H2, PostgreSQL or MariaDB).Spring 數據 JDBC 和 Spring 數據 R2DBC 也是如此。