在Spring Boot單表中找不到依賴項類型的合格Bean

Question

我是Spring Boot的初學者。

UserController.java

  @Controller
  @ComponentScan("com.foo.dto")
  public class UserController { 

  @Autowired
  UserRepository userRepository;

  @RequestMapping("/test")
  public void test() {
       System.out.println("PLEASE RUN");
  }

UserRepository擴展了CrudRepository

@Repository
public interface UserRepository extends CrudRepository<User, Long> {

    List<User> findByLastName(String lastName);

    List<User> findByAccNameAndPassword(String accName, String password);
}

用戶 .java

@Entity
    public class User {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long id;
    @NotNull
    private String firstName;
    @NotNull
    private String lastName;
    @NotNull
    private Date dob;
    @NotNull
    private String phone;
    @NotNull
    private String email;
    @NotNull
    private boolean isEmployer;
    @NotNull
    private String accountName;
    @NotNull
    private String password;

    protected User() {
    }

    public User(String firstName, String lastName, Date dob, String email, String phone, String accName,
            String password) {
        this.firstName = firstName;
        this.lastName = lastName;
        this.dob = dob;
        this.email = email;
        this.phone = phone;
        this.accountName = accName;
        this.password = password;
        this.isEmployer = false;

    }

當我嘗試運行應用程序時拋出異常。

拋出異常：

org.springframework.beans.factory.NoSuchBeanDefinitionException：沒有找到類型為[com.foo.dto.UserRepository]的合格Bean：需要至少1個符合該依賴條件的自動裝配候選Bean。 依賴項注釋：{@ org.springframework.beans.factory.annotation.Autowired（required = true）

Answer 1

我認為您需要在配置中啟用它

@EnableJpaRepositories("com.foo.dto")

在您的@Configuration文件中。