在Spring引导中模拟存储库并测试rest API

<dependencies>
    <!-- Spring Boot Web -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <!-- Spring Data JPA -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>

    <!-- H2 Database -->
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <scope>runtime</scope>
    </dependency>
</dependencies>

@Entity
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String name;
    private String email;

    // getters and setters
}

@Repository
public interface UserRepository extends CrudRepository<User, Long> {
    // 可以添加自定义的查询方法
}

@RestController
@RequestMapping("/users")
public class UserController {
    @Autowired
    private UserRepository userRepository;

    @GetMapping
    public Iterable<User> getAllUsers() {
        return userRepository.findAll();
    }

    @PostMapping
    public User createUser(@RequestBody User user) {
        return userRepository.save(user);
    }

    // 其他操作，如更新和删除用户
}

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class UserControllerTest {
    @Autowired
    private TestRestTemplate restTemplate;

    @Test
    public void testGetAllUsers() {
        ResponseEntity<List<User>> response = restTemplate.exchange(
                "/users",
                HttpMethod.GET,
                null,
                new ParameterizedTypeReference<List<User>>() {}
        );

        List<User> users = response.getBody();
        // 验证返回的用户列表是否符合预期
    }

    @Test
    public void testCreateUser() {
        User user = new User();
        user.setName("John Doe");
        user.setEmail("john.doe@example.com");

        ResponseEntity<User> response = restTemplate.postForEntity(
                "/users",
                user,
                User.class
        );

        User createdUser = response.getBody();
        // 验证返回的创建用户是否符合预期
    }

    // 其他测试用例，如更新和删除用户
}