問題描述

Field studentRepository in com.example.demo.StudentController required a bean of type ’com.example.demo.StudentRepository’ that could not be found.

Action:

Consider defining a bean of type ’com.example.demo.StudentRepository’ in your configuration.

@RestControllerpublic class StudentController { @Autowired private StudentRepository studentRepository; @GetMapping(value = '/findAll') public List<Student> studentList(){return studentRepository.findAll(); }}

StudentRepository 繼承 JpaRepository，應該是個最簡單的例子了

一共就一個包，SpringBootApplication和Controller都放在一個包下面，應該不會出現網上的順序的問題

問題解答

StudentRepository 沒有注冊

我自己解決了，jpa的包沖突了。