Spring Boot未自动连接@Repository

Question

package com.mycompany.myapp;
@ComponentScan(basePackageClasses = {com.mycompany.myapp.domain.user.User.class,
                                     com.mycompany.myapp.repository.UserRepository.class,
                                     com.mycompany.myapp.service.AuthenticationServiceImpl.class})
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

package com.mycompany.myapp.domain.user
@Entity
public class User {

    @Id
    @GeneratedValue
    private long id;
    @Column(nullable = false)
    private String name;
    @Column(nullable = false)
    private String lastName;
    @Column(nullable = false)
    private String password;
    @Column(nullable = false)
    private String email;

    public User() {}

    public User(String email, String password){
        this.email = email;
        this.password = password;
    }
}

package com.mycompany.myapp.repository;
public interface UserRepository extends CrudRepository<User, Long> {

    List<User> findByLastName(String lastName);
}

package com.mycompany.myapp.service;
@RestController
public class AuthenticationServiceImpl implements AuthenticationService {

    @Autowired
    private UserRepository userRepository;

    @RequestMapping("/add")
    public User add(){
        User user = new User();
        user.setName("Juan");
        user.setLastName("Sarpe");
        user.setEmail("[e-mail]");
        userRepository.save(user);
        return user;
    }
}

spring.datasource.url:jdbc:mysql://localhost:3306/mydb
spring.datasource.username=user
spring.datasource.password=pass
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.jpa.hibernate.ddl-auto=update

Answer 1

在spring boot的main类中，您必须使用以下注释：

@SpringBootApplication
@ComponentScan(basePackages = "basepackage")
@EntityScan(basePackages ="basepackage")
@EnableAutoConfiguration
@EnableJpaRepositories(basePackages = "basepackage")

在存储库层使用以下注释：

导入org.springframework.stereotype.repository；

@Transactional
@Repositor

import org.springframework.stereotype.Service;

@Service