xu-xiang/everything-claude-code-zh/springboot-patterns

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Spring Boot 架构模式、REST API 设计、分层服务、数据访问、缓存、异步处理和日志记录。适用于 Java Spring Boot 后端开发。

Install

npx vskill@latest install xu-xiang/everything-claude-code-zh/springboot-patterns

SKILL.md

Spring Boot 开发模式

适用于可扩展、生产级服务的 Spring Boot 架构和 API 模式。

何时启用

  • 使用 Spring MVC 或 WebFlux 构建 REST API
  • 组织 控制器 (Controller) → 服务 (Service) → 存储库 (Repository) 层
  • 配置 Spring Data JPA、缓存或异步处理
  • 添加验证、异常处理或分页
  • 为开发/测试/生产环境设置配置文件(Profiles)
  • 使用 Spring 事件(Spring Events)或 Kafka 实现事件驱动模式

REST API 结构

java
@RestController
@RequestMapping("/api/markets")
@Validated
class MarketController {
private final MarketService marketService;
MarketController(MarketService marketService) {
this.marketService = marketService;
}
@GetMapping
ResponseEntity<Page<MarketResponse>> list(
@RequestParam(defaultValue = "0") int page,
@RequestParam(defaultValue = "20") int size) {
Page<Market> markets = marketService.list(PageRequest.of(page, size));
return ResponseEntity.ok(markets.map(MarketResponse::from));
}
@PostMapping
ResponseEntity<MarketResponse> create(@Valid @RequestBody CreateMarketRequest request) {
Market market = marketService.create(request);
return ResponseEntity.status(HttpStatus.CREATED).body(MarketResponse.from(market));
}
}

存储库模式(Spring Data JPA)

java
public interface MarketRepository extends JpaRepository<MarketEntity, Long> {
@Query("select m from MarketEntity m where m.status = :status order by m.volume desc")
List<MarketEntity> findActive(@Param("status") MarketStatus status, Pageable pageable);
}

带事务的服务层

java
@Service
public class MarketService {
private final MarketRepository repo;
public MarketService(MarketRepository repo) {
this.repo = repo;
}
@Transactional
public Market create(CreateMarketRequest request) {
MarketEntity entity = MarketEntity.from(request);
MarketEntity saved = repo.save(entity);
return Market.from(saved);
}
}

DTO 与验证

java
public record CreateMarketRequest(
@NotBlank @Size(max = 200) String name,
@NotBlank @Size(max = 2000) String description,
@NotNull @FutureOrPresent Instant endDate,
@NotEmpty List<@NotBlank String> categories) {}
public record MarketResponse(Long id, String name, MarketStatus status) {
static MarketResponse from(Market market) {
return new MarketResponse(market.id(), market.name(), market.status());
}
}

异常处理

java
@ControllerAdvice
class GlobalExceptionHandler {
@ExceptionHandler(MethodArgumentNotValidException.class)
ResponseEntity<ApiError> handleValidation(MethodArgumentNotValidException ex) {
String message = ex.getBindingResult().getFieldErrors().stream()
.map(e -> e.getField() + ": " + e.getDefaultMessage())
.collect(Collectors.joining(", "));
return ResponseEntity.badRequest().body(ApiError.validation(message));
}
@ExceptionHandler(AccessDeniedException.class)
ResponseEntity<ApiError> handleAccessDenied() {
return ResponseEntity.status(HttpStatus.FORBIDDEN).body(ApiError.of("Forbidden"));
}
@ExceptionHandler(Exception.class)
ResponseEntity<ApiError> handleGeneric(Exception ex) {
// 记录带有堆栈跟踪的非预期错误
return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR)
.body(ApiError.of("Internal server error"));
}
}

缓存

需要在配置类上添加 @EnableCaching。

java
@Service
public class MarketCacheService {
private final MarketRepository repo;
public MarketCacheService(MarketRepository repo) {
this.repo = repo;
}
@Cacheable(value = "market", key = "#id")
public Market getById(Long id) {
return repo.findById(id)
.map(Market::from)
.orElseThrow(() -> new EntityNotFoundException("Market not found"));
}
@CacheEvict(value = "market", key = "#id")
public void evict(Long id) {}
}

异步处理

需要在配置类上添加 @EnableAsync。

java
@Service
public class NotificationService {
@Async
public CompletableFuture<Void> sendAsync(Notification notification) {
// 发送电子邮件/短信
return CompletableFuture.completedFuture(null);
}
}

日志记录 (SLF4J)

java
@Service
public class ReportService {
private static final Logger log = LoggerFactory.getLogger(ReportService.class);
public Report generate(Long marketId) {
log.info("generate_report marketId={}", marketId);
try {
// 逻辑
} catch (Exception ex) {
log.error("generate_report_failed marketId={}", marketId, ex);
throw ex;
}
return new Report();
}
}

中间件 / 过滤器

java
@Component
public class RequestLoggingFilter extends OncePerRequestFilter {
private static final Logger log = LoggerFactory.getLogger(RequestLoggingFilter.class);
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
FilterChain filterChain) throws ServletException, IOException {
long start = System.currentTimeMillis();
try {
filterChain.doFilter(request, response);
} finally {
long duration = System.currentTimeMillis() - start;
log.info("req method={} uri={} status={} durationMs={}",
request.getMethod(), request.getRequestURI(), response.getStatus(), duration);
}
}
}

分页和排序

java
PageRequest page = PageRequest.of(pageNumber, pageSize, Sort.by("createdAt").descending());
Page<Market> results = marketService.list(page);

具有容错能力的外部调用

java
public <T> T withRetry(Supplier<T> supplier, int maxRetries) {
int attempts = 0;
while (true) {
try {
return supplier.get();
} catch (Exception ex) {
attempts++;
if (attempts >= maxRetries) {
throw ex;
}
try {
Thread.sleep((long) Math.pow(2, attempts) * 100L);
} catch (InterruptedException ie) {
Thread.currentThread().interrupt();
throw ex;
}
}
}
}

速率限制(过滤器 + Bucket4j)

安全提示:默认情况下 X-Forwarded-For 请求头是不可信的,因为客户端可以伪造它。 仅在以下情况使用转发头:

  1. 应用位于受信任的反向代理(nginx、AWS ALB 等)之后
  2. 已将 ForwardedHeaderFilter 注册为 Bean
  3. 已在应用属性中配置了 server.forward-headers-strategy=NATIVE 或 FRAMEWORK
  4. 代理已配置为覆盖(而不是追加)X-Forwarded-For 请求头

当 ForwardedHeaderFilter 配置正确时,request.getRemoteAddr() 将自动从转发头中返回正确的客户端 IP。如果没有此配置,请直接使用 request.getRemoteAddr()——它返回直接连接的 IP,这是唯一可信的值。

java
@Component
public class RateLimitFilter extends OncePerRequestFilter {
private final Map<String, Bucket> buckets = new ConcurrentHashMap<>();
/*
* 安全:此过滤器使用 request.getRemoteAddr() 来识别客户端以进行速率限制。
*
* 如果应用位于反向代理(nginx、AWS ALB 等)之后,必须配置 Spring 正确处理转发头,
* 以进行准确的客户端 IP 检测:
*
* 1. 在 application.properties/yaml 中设置 server.forward-headers-strategy=NATIVE(用于云平台)
* 或 FRAMEWORK
* 2. 如果使用 FRAMEWORK 策略,请注册 ForwardedHeaderFilter:
*
* @Bean
* ForwardedHeaderFilter forwardedHeaderFilter() {
* return new ForwardedHeaderFilter();
* }
*
* 3. 确保代理覆盖(而不是追加)X-Forwarded-For 请求头,以防止伪造
* 4. 为容器配置 server.tomcat.remoteip.trusted-proxies 或等效配置
*
* 如果没有此配置,request.getRemoteAddr() 将返回代理 IP,而不是客户端 IP。
* 不要直接读取 X-Forwarded-For——在没有受信任代理处理的情况下,它是极易伪造的。
*/
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
FilterChain filterChain) throws ServletException, IOException {
// 使用 getRemoteAddr(),在配置了 ForwardedHeaderFilter 时它返回正确的客户端 IP,
// 否则返回直接连接 IP。在没有正确代理配置的情况下,切勿直接信任 X-Forwarded-For 请求头。
String clientIp = request.getRemoteAddr();
Bucket bucket = buckets.computeIfAbsent(clientIp,
k -> Bucket.builder()
.addLimit(Bandwidth.classic(100, Refill.greedy(100, Duration.ofMinutes(1))))
.build());
if (bucket.tryConsume(1)) {
filterChain.doFilter(request, response);
} else {
response.setStatus(HttpStatus.TOO_MANY_REQUESTS.value());
}
}
}

后台作业

使用 Spring 的 @Scheduled 或集成队列(如 Kafka、SQS、RabbitMQ)。保持处理程序的幂等性和可观察性。

可观察性

  • 通过 Logback encoder 实现结构化日志(JSON)
  • 指标(Metrics):Micrometer + Prometheus/OTel
  • 链路追踪(Tracing):使用 OpenTelemetry 或 Brave 后端的 Micrometer Tracing

生产环境默认值

  • 优先使用构造函数注入,避免字段注入
  • 为 RFC 7807 错误启用 spring.mvc.problemdetails.enabled=true(Spring Boot 3+)
  • 根据工作负载配置 HikariCP 连接池大小,设置超时
  • 为查询使用 @Transactional(readOnly = true)
  • 在适当的地方通过 @NonNull 和 Optional 强制执行空安全

牢记:保持控制器(Controllers)精简,服务(Services)聚焦,存储库(Repositories)简单,并集中处理错误。针对可维护性和可测试性进行优化。

Security

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Source

Popularity

Repository stars
290
Repository forks
57
7-day trend score
28

Stars and forks are for the whole GitHub repository, not this skill alone. Refreshed 31 Mar 2026, 7 months ago.

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