{"id":7167,"date":"2026-08-13T10:14:35","date_gmt":"2026-08-13T02:14:35","guid":{"rendered":"https:\/\/t.n-years.com\/?p=7167"},"modified":"2026-08-13T10:14:35","modified_gmt":"2026-08-13T02:14:35","slug":"spring-boot-%e5%b8%b8%e7%94%a8%e6%b3%a8%e8%a7%a3%ef%bc%9a%e5%8a%9f%e8%83%bd%e4%b8%8e%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/t.n-years.com\/?p=7167","title":{"rendered":"Spring Boot \u5e38\u7528\u6ce8\u89e3\uff1a\u529f\u80fd\u4e0e\u793a\u4f8b"},"content":{"rendered":"

Spring Boot \u5e38\u7528\u6ce8\u89e3\uff1a\u529f\u80fd\u4e0e\u793a\u4f8b<\/h1>\n
\n

\u6ce8\uff1a@Mapper<\/code>\u3001@MapperScan<\/code> \u5c5e\u4e8e MyBatis<\/strong>\uff1b@FeignClient<\/code> \u5c5e\u4e8e Spring Cloud OpenFeign<\/strong>\uff1b\u5176\u4f59\u4e3b\u8981\u6765\u81ea Spring \/ Spring Boot\u3002<\/p>\n<\/blockquote>\n

\n

Web \u63a5\u53e3<\/h2>\n

@RestController<\/code><\/h3>\n

\u58f0\u660e\u4e00\u4e2a REST Controller\u3002\u7b49\u4ef7\u4e8e @Controller + @ResponseBody<\/code>\uff0c\u65b9\u6cd5\u8fd4\u56de\u503c\u4f1a\u81ea\u52a8\u5e8f\u5217\u5316\u4e3a JSON\u3002<\/p>\n

@RestController\npublic class UserController {\n\n    @GetMapping("\/users\/{id}")\n    public UserDTO getUser(@PathVariable Long id) {\n        return new UserDTO(id, "Alice");\n    }\n}<\/code><\/pre>\n
\u9002\u7528\u573a\u666f\uff1aJSON API \u670d\u52a1\u3002<\/p>\n
\n
@RequestMapping<\/code><\/h3>\n
\u5b9a\u4e49\u8bf7\u6c42\u8def\u5f84\u3001HTTP \u65b9\u6cd5\u3001\u8bf7\u6c42\u5934\u6216\u53c2\u6570\u5339\u914d\u89c4\u5219\u3002\u53ef\u6807\u5728\u7c7b\u6216\u65b9\u6cd5\u4e0a\u3002<\/p>\n
@RestController\n@RequestMapping("\/api\/users")\npublic class UserController {\n\n    @RequestMapping(\n        value = "\/{id}",\n        method = RequestMethod.GET\n    )\n    public UserDTO getUser(@PathVariable Long id) {\n        return userService.getUser(id);\n    }\n}<\/code><\/pre>\n
\u901a\u5e38\u66f4\u63a8\u8350\u8bed\u4e49\u66f4\u6e05\u6670\u7684\u5feb\u6377\u6ce8\u89e3\uff1a<\/p>\n
@GetMapping("\/{id}")\n@PostMapping\n@PutMapping("\/{id}")\n@DeleteMapping("\/{id}")<\/code><\/pre>\n
\n
Bean \u6ce8\u518c\u4e0e\u4e1a\u52a1\u5206\u5c42<\/h2>\n
@Service<\/code><\/h3>\n
\u5c06\u7c7b\u6ce8\u518c\u4e3a Spring Bean\uff0c\u8bed\u4e49\u4e0a\u8868\u793a\u4e1a\u52a1\u670d\u52a1\u5c42\u3002<\/p>\n
@Service\n@RequiredArgsConstructor\npublic class UserService {\n\n    private final UserRepository userRepository;\n\n    public UserDTO getUser(Long id) {\n        User user = userRepository.findById(id);\n        return UserDTO.from(user);\n    }\n}<\/code><\/pre>\n
\u9002\u7528\u573a\u666f\uff1a\u4e1a\u52a1\u89c4\u5219\u3001\u7528\u4f8b\u7f16\u6392\u3001\u4e8b\u52a1\u8fb9\u754c\u3001\u8c03\u7528\u591a\u4e2a Repository \u6216\u5916\u90e8\u670d\u52a1\u3002<\/p>\n
\n
@Component<\/code><\/h3>\n
\u901a\u7528\u7684 Bean \u6ce8\u518c\u6ce8\u89e3\u3002\u6ca1\u6709\u660e\u786e\u5c42\u6b21\u8bed\u4e49\u65f6\u4f7f\u7528\u3002<\/p>\n
@Component\npublic class PasswordEncoder {\n\n    public String encode(String password) {\n        return DigestUtils.md5DigestAsHex(password.getBytes(StandardCharsets.UTF_8));\n    }\n}<\/code><\/pre>\n
\u5e38\u7528\u4e8e\uff1a\u5de5\u5177\u7c7b\u3001\u7b56\u7565\u5b9e\u73b0\u3001\u4e8b\u4ef6\u5904\u7406\u5668\u3001\u4efb\u52a1\u6267\u884c\u5668\u3001\u975e Web\/Service\/Repository \u7684\u7ec4\u4ef6\u3002<\/p>\n
\n
@Repository<\/code><\/h3>\n
\u5c06\u7c7b\u6ce8\u518c\u4e3a Bean\uff0c\u8bed\u4e49\u4e0a\u8868\u793a\u6570\u636e\u8bbf\u95ee\u5c42\u3002Spring \u8fd8\u4f1a\u5c06\u5e95\u5c42\u6301\u4e45\u5316\u5f02\u5e38\u8f6c\u6362\u4e3a\u7edf\u4e00\u7684 DataAccessException \u4f53\u7cfb\u3002<\/p>\n
@Repository\n@RequiredArgsConstructor\npublic class UserRepository {\n\n    private final JdbcTemplate jdbcTemplate;\n\n    public User findById(Long id) {\n        return jdbcTemplate.queryForObject(\n            "SELECT id, name FROM users WHERE id = ?",\n            (resultSet, rowNum) -> new User(\n                resultSet.getLong("id"),\n                resultSet.getString("name")\n            ),\n            id\n        );\n    }\n}<\/code><\/pre>\n
\u5982\u679c\u4f7f\u7528 Spring Data JPA\uff0c\u901a\u5e38\u5199\u63a5\u53e3\u5373\u53ef\uff1a<\/p>\n
@Repository\npublic interface UserJpaRepository extends JpaRepository<UserEntity, Long> {\n}<\/code><\/pre>\n
\n
MyBatis \u6570\u636e\u8bbf\u95ee<\/h2>\n
@Mapper<\/code><\/h3>\n
\u6807\u8bb0 MyBatis Mapper \u63a5\u53e3\uff0c\u8ba9 MyBatis \u5728\u8fd0\u884c\u65f6\u751f\u6210\u4ee3\u7406\u5b9e\u73b0\u3002<\/p>\n
@Mapper\npublic interface UserMapper {\n\n    @Select("""\n        SELECT id, name\n        FROM users\n        WHERE id = #{id}\n        """)\n    UserEntity selectById(@Param("id") Long id);\n}<\/code><\/pre>\n
\u66f4\u5e38\u89c1\u7684 XML \u5199\u6cd5\uff1a<\/p>\n
@Mapper\npublic interface UserMapper {\n    UserEntity selectById(Long id);\n}<\/code><\/pre>\n
<mapper namespace="com.example.user.UserMapper">\n    <select id="selectById" resultType="com.example.user.UserEntity">\n        SELECT id, name\n        FROM users\n        WHERE id = #{id}\n    <\/select>\n<\/mapper><\/code><\/pre>\n
UserMapper<\/code> \u6ca1\u6709\u624b\u5199 Impl<\/code> \u662f\u6b63\u5e38\u7684\uff1aMyBatis \u4f1a\u52a8\u6001\u751f\u6210\u4ee3\u7406\u5bf9\u8c61\u3002<\/p>\n
\n
@MapperScan<\/code><\/h3>\n
\u6279\u91cf\u626b\u63cf\u6307\u5b9a\u5305\u4e0b\u7684 MyBatis Mapper\uff0c\u901a\u5e38\u653e\u5728\u542f\u52a8\u7c7b\u6216\u914d\u7f6e\u7c7b\u4e0a\u3002<\/p>\n
@SpringBootApplication\n@MapperScan("com.example.user.mapper")\npublic class Application {\n\n    public static void main(String[] args) {\n        SpringApplication.run(Application.class, args);\n    }\n}<\/code><\/pre>\n
\u4f7f\u7528\u4e86 @MapperScan<\/code> \u540e\uff0cMapper \u63a5\u53e3\u4e00\u822c\u65e0\u9700\u518d\u9010\u4e2a\u5199 @Mapper<\/code>\u3002<\/p>\n
\n
\u4e8b\u52a1\u3001\u5f02\u6b65\u4e0e\u4efb\u52a1<\/h2>\n
@Transactional<\/code><\/h3>\n
\u58f0\u660e\u5f0f\u4e8b\u52a1\u3002\u65b9\u6cd5\u6b63\u5e38\u7ed3\u675f\u65f6\u63d0\u4ea4\uff1b\u51fa\u73b0\u7b26\u5408\u56de\u6eda\u89c4\u5219\u7684\u5f02\u5e38\u65f6\u56de\u6eda\u3002<\/p>\n
@Service\n@RequiredArgsConstructor\npublic class OrderService {\n\n    private final OrderMapper orderMapper;\n    private final InventoryService inventoryService;\n\n    @Transactional\n    public void createOrder(CreateOrderCommand command) {\n        inventoryService.deduct(command.productId(), command.quantity());\n\n        orderMapper.insert(new OrderEntity(\n            command.userId(),\n            command.productId(),\n            command.quantity()\n        ));\n    }\n}<\/code><\/pre>\n
\u5e38\u7528\u5c5e\u6027\uff1a<\/p>\n
@Transactional(\n    rollbackFor = Exception.class,\n    readOnly = true,\n    timeout = 5\n)\npublic UserDTO getUser(Long id) {\n    \/\/ \u53ea\u8bfb\u67e5\u8be2\n}<\/code><\/pre>\n
\u6ce8\u610f\u4e8b\u9879\uff1a<\/p>\n
    \n
  • \u6ce8\u89e3\u4f9d\u8d56 Spring AOP \u4ee3\u7406\u751f\u6548\u3002<\/li>\n
  • \u540c\u4e00\u4e2a\u7c7b\u5185 this.someTransactionalMethod()<\/code> \u8c03\u7528\uff0c\u53ef\u80fd\u7ed5\u8fc7\u4e8b\u52a1\u4ee3\u7406\u3002<\/li>\n
  • \u9ed8\u8ba4\u4e3b\u8981\u5bf9 RuntimeException<\/code> \u548c Error<\/code> \u56de\u6eda\uff1b\u4e1a\u52a1\u68c0\u67e5\u5f02\u5e38\u5e38\u9700\u663e\u5f0f\u5199 rollbackFor<\/code>\u3002<\/li>\n
  • \u4e8b\u52a1\u901a\u5e38\u653e\u5728 Service \u5c42\uff0c\u4e0d\u5efa\u8bae\u653e\u5728 Controller\u3002<\/li>\n<\/ul>\n
    \n
    @Async<\/code><\/h3>\n
    \u8ba9\u65b9\u6cd5\u5f02\u6b65\u5728\u7ebf\u7a0b\u6c60\u4e2d\u6267\u884c\uff0c\u8c03\u7528\u65b9\u4e0d\u4f1a\u7b49\u5f85\u5176\u5b8c\u6210\u3002<\/p>\n
    \u5148\u5f00\u542f\u5f02\u6b65\u80fd\u529b\uff1a<\/p>\n
    @Configuration\n@EnableAsync\npublic class AsyncConfig {\n}<\/code><\/pre>\n
    \u518d\u6807\u6ce8\u65b9\u6cd5\uff1a<\/p>\n
    @Service\npublic class EmailService {\n\n    @Async\n    public CompletableFuture<Void> sendWelcomeEmail(String email) {\n        \/\/ \u8c03\u7528\u90ae\u4ef6\u670d\u52a1\n        return CompletableFuture.completedFuture(null);\n    }\n}<\/code><\/pre>\n
    \u8c03\u7528\uff1a<\/p>\n
    emailService.sendWelcomeEmail("user@example.com");\n\/\/ \u8fd9\u91cc\u4f1a\u7ee7\u7eed\u6267\u884c\uff0c\u4e0d\u7b49\u5f85\u90ae\u4ef6\u53d1\u9001\u5b8c\u6210<\/code><\/pre>\n
    \u6ce8\u610f\uff1a<\/p>\n
      \n
    • \u901a\u5e38\u8fd4\u56de void<\/code>\u3001Future<\/code> \u6216 CompletableFuture<\/code>\u3002<\/li>\n
    • \u540c\u7c7b\u5185\u90e8\u8c03\u7528\u4e5f\u53ef\u80fd\u7ed5\u8fc7\u4ee3\u7406\u3002<\/li>\n
    • \u751f\u4ea7\u73af\u5883\u5e94\u914d\u7f6e\u4e13\u7528\u7ebf\u7a0b\u6c60\uff0c\u907f\u514d\u4f7f\u7528\u9ed8\u8ba4\u7ebf\u7a0b\u6c60\u3002<\/li>\n<\/ul>\n
      \n
      @Scheduled<\/code><\/h3>\n
      \u58f0\u660e\u5b9a\u65f6\u4efb\u52a1\u3002<\/p>\n
      \u5148\u5f00\u542f\u8c03\u5ea6\u80fd\u529b\uff1a<\/p>\n
      @Configuration\n@EnableScheduling\npublic class SchedulerConfig {\n}<\/code><\/pre>\n
      @Component\npublic class ReportTask {\n\n    @Scheduled(cron = "0 0 2 * * ?")\n    public void generateDailyReport() {\n        \/\/ \u6bcf\u5929\u51cc\u6668 2 \u70b9\u6267\u884c\n    }\n\n    @Scheduled(fixedDelay = 60_000)\n    public void refreshCache() {\n        \/\/ \u4e0a\u4e00\u6b21\u6267\u884c\u5b8c\u6210\u540e\uff0c\u95f4\u9694 60 \u79d2\u518d\u6267\u884c\n    }\n}<\/code><\/pre>\n
      \u5e38\u7528\u53c2\u6570\uff1a<\/p>\n
      @Scheduled(fixedRate = 10_000)    \/\/ \u6bcf 10 \u79d2\u89e6\u53d1\u4e00\u6b21\n@Scheduled(fixedDelay = 10_000)  \/\/ \u4e0a\u6b21\u6267\u884c\u5b8c\u540e\u7b49 10 \u79d2\n@Scheduled(cron = "0 *\/5 * * * ?") \/\/ \u6bcf 5 \u5206\u949f<\/code><\/pre>\n
      \u6ce8\u610f\uff1a\u591a\u5b9e\u4f8b\u90e8\u7f72\u65f6\uff0c\u6bcf\u4e2a\u5b9e\u4f8b\u90fd\u4f1a\u6267\u884c\u4efb\u52a1\u3002\u9700\u8981\u5206\u5e03\u5f0f\u9501\u6216\u4efb\u52a1\u8c03\u5ea6\u5e73\u53f0\u907f\u514d\u91cd\u590d\u6267\u884c\u3002<\/p>\n
      \n
      \u4e8b\u4ef6\u673a\u5236<\/h2>\n
      @EventListener<\/code><\/h3>\n
      \u76d1\u542c\u5e94\u7528\u4e8b\u4ef6\uff0c\u5b9e\u73b0\u53d1\u5e03\u8005\u548c\u6d88\u8d39\u8005\u89e3\u8026\u3002<\/p>\n
      \u5b9a\u4e49\u4e8b\u4ef6\uff1a<\/p>\n
      public record UserRegisteredEvent(Long userId, String email) {\n}<\/code><\/pre>\n
      \u53d1\u5e03\u4e8b\u4ef6\uff1a<\/p>\n
      @Service\n@RequiredArgsConstructor\npublic class UserService {\n\n    private final ApplicationEventPublisher eventPublisher;\n\n    public void register(RegisterUserCommand command) {\n        Long userId = 1001L;\n\n        eventPublisher.publishEvent(\n            new UserRegisteredEvent(userId, command.email())\n        );\n    }\n}<\/code><\/pre>\n
      \u76d1\u542c\u4e8b\u4ef6\uff1a<\/p>\n
      @Component\npublic class UserRegisteredListener {\n\n    @EventListener\n    public void onUserRegistered(UserRegisteredEvent event) {\n        \/\/ \u4f8b\u5982\uff1a\u521d\u59cb\u5316\u7528\u6237\u8d44\u6599\u3001\u53d1\u9001\u6b22\u8fce\u90ae\u4ef6\n    }\n}<\/code><\/pre>\n
      \u82e5\u5e0c\u671b\u5728\u4e8b\u52a1\u63d0\u4ea4\u540e\u624d\u5904\u7406\uff0c\u53ef\u4f7f\u7528\uff1a<\/p>\n
      @Component\npublic class UserRegisteredListener {\n\n    @TransactionalEventListener(\n        phase = TransactionPhase.AFTER_COMMIT\n    )\n    public void onUserRegistered(UserRegisteredEvent event) {\n        \/\/ \u53ea\u6709\u4e8b\u52a1\u6210\u529f\u63d0\u4ea4\u540e\u6267\u884c\n    }\n}<\/code><\/pre>\n
      \n
      \u8fdc\u7a0b HTTP \u8c03\u7528<\/h2>\n
      @FeignClient<\/code><\/h3>\n
      \u58f0\u660e\u8fdc\u7a0b HTTP \u670d\u52a1\u5ba2\u6237\u7aef\u63a5\u53e3\uff0c\u7531 OpenFeign \u751f\u6210\u5b9e\u73b0\u3002<\/p>\n
      \u5148\u5f00\u542f\uff1a<\/p>\n
      @SpringBootApplication\n@EnableFeignClients\npublic class Application {\n}<\/code><\/pre>\n
      \u5b9a\u4e49\u5ba2\u6237\u7aef\uff1a<\/p>\n
      @FeignClient(\n    name = "user-service",\n    url = "${clients.user-service.base-url}"\n)\npublic interface UserClient {\n\n    @GetMapping("\/api\/users\/{id}")\n    UserDTO getUser(@PathVariable Long id);\n}<\/code><\/pre>\n
      \u50cf\u8c03\u7528\u672c\u5730\u63a5\u53e3\u4e00\u6837\u4f7f\u7528\uff1a<\/p>\n
      @Service\n@RequiredArgsConstructor\npublic class OrderService {\n\n    private final UserClient userClient;\n\n    public OrderView getOrder(Long orderId) {\n        UserDTO user = userClient.getUser(1001L);\n        return new OrderView(orderId, user.name());\n    }\n}<\/code><\/pre>\n
      \u6ce8\u610f\uff1a@FeignClient<\/code> \u63a5\u53e3\u901a\u5e38\u6ca1\u6709\u672c\u5730\u5b9e\u73b0\u7c7b\uff1b\u6846\u67b6\u4f1a\u5728\u542f\u52a8\u65f6\u751f\u6210\u4ee3\u7406\u3002\u5e94\u914d\u7f6e\u8d85\u65f6\u3001\u91cd\u8bd5\u3001\u9519\u8bef\u5904\u7406\u548c\u7194\u65ad\u7b56\u7565\u3002<\/p>\n
      \n
      Java \u914d\u7f6e\u4e0e Bean \u88c5\u914d<\/h2>\n
      @Configuration<\/code><\/h3>\n
      \u58f0\u660e\u914d\u7f6e\u7c7b\uff0c\u5176\u4e2d\u901a\u5e38\u5305\u542b @Bean<\/code> \u65b9\u6cd5\u3002<\/p>\n
      @Configuration\npublic class AppConfig {\n\n    @Bean\n    public Clock clock() {\n        return Clock.systemUTC();\n    }\n}<\/code><\/pre>\n
      @Configuration<\/code> \u5e38\u7528\u4e8e\uff1a\u7b2c\u4e09\u65b9 SDK \u521d\u59cb\u5316\u3001\u7ebf\u7a0b\u6c60\u3001HTTP Client\u3001\u5e8f\u5217\u5316\u5668\u3001\u6761\u4ef6\u5316\u88c5\u914d\u3002<\/p>\n
      \n
      @Bean<\/code><\/h3>\n
      \u5c06\u65b9\u6cd5\u8fd4\u56de\u503c\u6ce8\u518c\u5230 Spring \u5bb9\u5668\u3002\u9002\u7528\u4e8e\u65e0\u6cd5\u76f4\u63a5\u4fee\u6539\u6e90\u7801\u3001\u4e0d\u80fd\u52a0 @Component<\/code> \u7684\u7b2c\u4e09\u65b9\u5bf9\u8c61\u3002<\/p>\n
      @Configuration\npublic class HttpClientConfig {\n\n    @Bean\n    public RestTemplate restTemplate() {\n        return new RestTemplate();\n    }\n}<\/code><\/pre>\n
      \u6ce8\u5165\u4f7f\u7528\uff1a<\/p>\n
      @Service\n@RequiredArgsConstructor\npublic class RemoteService {\n\n    private final RestTemplate restTemplate;\n}<\/code><\/pre>\n
      @Component<\/code> \u662f\u201c\u626b\u63cf\u7c7b\u5e76\u521b\u5efa\u5bf9\u8c61\u201d\uff1b@Bean<\/code> \u662f\u201c\u8c03\u7528\u6307\u5b9a\u65b9\u6cd5\uff0c\u628a\u8fd4\u56de\u5bf9\u8c61\u6ce8\u518c\u8fdb\u5bb9\u5668\u201d\u3002<\/p>\n
      \n
      @Qualifier<\/code><\/h3>\n
      \u5f53\u540c\u4e00\u63a5\u53e3\u6709\u591a\u4e2a Bean \u5b9e\u73b0\u65f6\uff0c\u660e\u786e\u6307\u5b9a\u8981\u6ce8\u5165\u54ea\u4e00\u4e2a\u3002<\/p>\n
      public interface PaymentService {\n    void pay(BigDecimal amount);\n}<\/code><\/pre>\n
      @Service("alipayService")\npublic class AlipayService implements PaymentService {\n    public void pay(BigDecimal amount) {\n    }\n}\n\n@Service("wechatPayService")\npublic class WechatPayService implements PaymentService {\n    public void pay(BigDecimal amount) {\n    }\n}<\/code><\/pre>\n
      \u6ce8\u5165\u6307\u5b9a\u5b9e\u73b0\uff1a<\/p>\n
      @Service\npublic class CheckoutService {\n\n    private final PaymentService paymentService;\n\n    public CheckoutService(\n            @Qualifier("alipayService") PaymentService paymentService\n    ) {\n        this.paymentService = paymentService;\n    }\n}<\/code><\/pre>\n
      \u9002\u7528\u573a\u666f\uff1a\u652f\u4ed8\u6e20\u9053\u3001\u591a\u5b58\u50a8\u5b9e\u73b0\u3001\u591a\u7b2c\u4e09\u65b9\u5ba2\u6237\u7aef\u3001\u4e0d\u540c\u7b56\u7565\u5b9e\u73b0\u3002<\/p>\n
      \n
      @Primary<\/code><\/h3>\n
      \u5f53\u540c\u4e00\u7c7b\u578b\u6709\u591a\u4e2a Bean \u65f6\uff0c\u6807\u8bb0\u9ed8\u8ba4\u4f18\u5148\u6ce8\u5165\u7684\u5b9e\u73b0\u3002<\/p>\n
      @Service\n@Primary\npublic class DefaultPaymentService implements PaymentService {\n    public void pay(BigDecimal amount) {\n    }\n}\n\n@Service\npublic class BackupPaymentService implements PaymentService {\n    public void pay(BigDecimal amount) {\n    }\n}<\/code><\/pre>\n
      @Service\n@RequiredArgsConstructor\npublic class CheckoutService {\n\n    private final PaymentService paymentService;\n    \/\/ \u6ce8\u5165 DefaultPaymentService\n}<\/code><\/pre>\n
      \u89c4\u5219\uff1a<\/p>\n
      @Qualifier \u4f18\u5148\u7ea7\u9ad8\u4e8e @Primary<\/code><\/pre>\n
      \n
      \u73af\u5883\u4e0e\u6761\u4ef6\u88c5\u914d<\/h2>\n
      @Profile<\/code><\/h3>\n
      \u4ec5\u5728\u7279\u5b9a\u73af\u5883 Profile \u6fc0\u6d3b\u65f6\u6ce8\u518c Bean\u3002<\/p>\n
      @Service\n@Profile("dev")\npublic class MockSmsService implements SmsService {\n\n    public void send(String phone, String content) {\n        System.out.println("Mock SMS: " + content);\n    }\n}<\/code><\/pre>\n
      @Service\n@Profile("prod")\npublic class RealSmsService implements SmsService {\n\n    public void send(String phone, String content) {\n        \/\/ \u8c03\u7528\u771f\u5b9e\u77ed\u4fe1\u5e73\u53f0\n    }\n}<\/code><\/pre>\n
      \u6fc0\u6d3b Profile\uff1a<\/p>\n
      spring:\n  profiles:\n    active: dev<\/code><\/pre>\n
      \u6216\u901a\u8fc7\u73af\u5883\u53d8\u91cf\uff1a<\/p>\n
      SPRING_PROFILES_ACTIVE=prod<\/code><\/pre>\n
      \n
      @Conditional<\/code><\/h3>\n
      \u6309\u6761\u4ef6\u51b3\u5b9a\u662f\u5426\u6ce8\u518c Bean\u3002\u5b83\u662f\u5e95\u5c42\u901a\u7528\u6ce8\u89e3\uff0c\u5b9e\u9645\u5f00\u53d1\u66f4\u5e38\u89c1 Spring Boot \u63d0\u4f9b\u7684\u6d3e\u751f\u6ce8\u89e3\u3002<\/p>\n
      @Configuration\npublic class CacheConfig {\n\n    @Bean\n    @ConditionalOnProperty(\n        prefix = "app.cache",\n        name = "enabled",\n        havingValue = "true"\n    )\n    public CacheService cacheService() {\n        return new RedisCacheService();\n    }\n}<\/code><\/pre>\n
      \u914d\u7f6e\uff1a<\/p>\n
      app:\n  cache:\n    enabled: true<\/code><\/pre>\n
      \u5e38\u7528\u6761\u4ef6\u6ce8\u89e3\uff1a<\/p>\n
      @ConditionalOnProperty        \/\/ \u914d\u7f6e\u9879\u6ee1\u8db3\u6761\u4ef6\n@ConditionalOnClass           \/\/ classpath \u5b58\u5728\u67d0\u4e2a\u7c7b\n@ConditionalOnMissingBean     \/\/ \u5bb9\u5668\u4e2d\u5c1a\u4e0d\u5b58\u5728\u67d0 Bean\n@ConditionalOnBean            \/\/ \u5bb9\u5668\u4e2d\u5b58\u5728\u67d0 Bean\n@ConditionalOnWebApplication  \/\/ \u5f53\u524d\u662f Web \u5e94\u7528<\/code><\/pre>\n
      \u5178\u578b\u7528\u9014\uff1a\u81ea\u52a8\u914d\u7f6e\u3001\u53ef\u9009\u80fd\u529b\u3001\u5f00\u53d1\u73af\u5883 Mock \u5b9e\u73b0\u3001\u7ec4\u4ef6\u5f00\u5173\u3002<\/p>\n
      \n
      AOP \u5207\u9762<\/h2>\n
      @Aspect<\/code><\/h3>\n
      \u58f0\u660e\u5207\u9762\uff0c\u7528\u4e8e\u628a\u65e5\u5fd7\u3001\u76d1\u63a7\u3001\u9274\u6743\u3001\u5ba1\u8ba1\u3001\u7edf\u4e00\u5f02\u5e38\u5904\u7406\u7b49\u6a2a\u5207\u903b\u8f91\u4ece\u4e1a\u52a1\u4ee3\u7801\u4e2d\u62bd\u79bb\u3002<\/p>\n
      @Aspect\n@Component\n@Slf4j\npublic class MethodLogAspect {\n\n    @Around("execution(* com.example.service..*(..))")\n    public Object logMethod(\n            ProceedingJoinPoint joinPoint\n    ) throws Throwable {\n        long startTime = System.currentTimeMillis();\n\n        try {\n            return joinPoint.proceed();\n        } finally {\n            long duration = System.currentTimeMillis() - startTime;\n            log.info(\n                "method={}, duration={}ms",\n                joinPoint.getSignature(),\n                duration\n            );\n        }\n    }\n}<\/code><\/pre>\n
      \u5e38\u7528\u901a\u77e5\u7c7b\u578b\uff1a<\/p>\n
      @Before   \/\/ \u65b9\u6cd5\u6267\u884c\u524d\n@After    \/\/ \u65b9\u6cd5\u7ed3\u675f\u540e\uff0c\u65e0\u8bba\u6210\u529f\u5931\u8d25\n@AfterReturning \/\/ \u6b63\u5e38\u8fd4\u56de\u540e\n@AfterThrowing  \/\/ \u629b\u5f02\u5e38\u540e\n@Around   \/\/ \u5b8c\u5168\u5305\u88f9\u65b9\u6cd5\u8c03\u7528\uff0c\u6700\u7075\u6d3b<\/code><\/pre>\n
      \u5e38\u89c1\u5207\u70b9\u8868\u8fbe\u5f0f\uff1a<\/p>\n
      execution(* com.example.service..*(..))<\/code><\/pre>\n
      \u542b\u4e49\uff1a<\/p>\n
      \u5339\u914d com.example.service \u53ca\u5176\u5b50\u5305\u4e0b\uff0c\n\u6240\u6709\u7c7b\u7684\u6240\u6709\u65b9\u6cd5\uff0c\u4efb\u610f\u53c2\u6570\u3002<\/code><\/pre>\n
      \u6ce8\u610f\uff1a@Transactional<\/code>\u3001@Async<\/code> \u672c\u8d28\u4e0a\u4e5f\u4e3b\u8981\u4f9d\u8d56 AOP \u4ee3\u7406\u673a\u5236\u3002\u56e0\u6b64\u8981\u8b66\u60d5\u540c\u7c7b\u5185\u90e8\u8c03\u7528\u7ed5\u8fc7\u4ee3\u7406\u7684\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      Spring Boot \u5e38\u7528\u6ce8\u89e3\uff1a\u529f\u80fd\u4e0e\u793a\u4f8b \u6ce8\uff1a@Mapper\u3001@MapperScan \u5c5e\u4e8e MyBatis… <\/p>\n
      \u9605\u8bfb\u66f4\u591a<\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-7167","post","type-post","status-publish","format-standard","hentry","category-5"],"_links":{"self":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/7167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7167"}],"version-history":[{"count":1,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/7167\/revisions"}],"predecessor-version":[{"id":7169,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/7167\/revisions\/7169"}],"wp:attachment":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}