package cn.codest.sso.web;
@RestController
@Api(tags = "統(tǒng)一認(rèn)證服務(wù)")
@RequestMapping("/v1.0/user")
@RequiredArgsConstructor
public class SSOController {
    private final UserService userService;
    @GetMapping("/get/{id}")
    @ApiOperation(value = "用戶查詢", httpMethod = "GET", notes = "用戶查詢")
    public SwaggerResultUtil getById(String id){
        return SwaggerResultUtil.resultSuccess(userService.get(id));
    }
}

@Slf4j
@Configuration
@Order(Ordered.HIGHEST_PRECEDENCE)
public class PackagePathRequestMappingHandler extends RequestMappingHandlerMapping {
    private static final String PACKAGE_PREFIX = "cn.codest";
    private static final String SERVICE_PREFIX = "service";
    private static final String PROVIDER_PREFIX = "providerD";
    /**
     * 包名對(duì)應(yīng)的服務(wù)名緩存類
     */
    private final LinkedHashMap<String, String> services = new LinkedHashMap<>(8);
    @Override
    protected RequestMappingInfo getMappingForMethod(Method method, Class<?> handlerType) {
        // 判斷當(dāng)前注冊(cè)的controller接口屬于業(yè)務(wù)層controller，部分中間件例如swagger也會(huì)進(jìn)行接口注冊(cè)
        if (!StringUtils.startsWith(handlerType.getName(), PACKAGE_PREFIX)
                || !AnnotatedElementUtils.hasAnnotation(method, RequestMapping.class)
                || AnnotatedElementUtils.hasAnnotation(handlerType, FeignClient.class)) {
            return super.getMappingForMethod(method, handlerType);
        }
        try {
            // 構(gòu)造RequestMapping對(duì)象
            RequestMappingInfo mapping = super.getMappingForMethod(method, handlerType);
            // 根據(jù)包路徑獲取服務(wù)名
            String serviceName = getServiceName(handlerType.getName());
            if (StringUtils.isBlank(serviceName)) {
                return mapping;
            }
            // 增加服務(wù)名前綴
            return RequestMappingInfo.paths(serviceName).build().combine(mapping);
        } catch (Exception e) {
            log.error("重寫RequestMapping請(qǐng)求路徑時(shí)發(fā)生錯(cuò)誤[class: {}, method: {}]", handlerType.getName(), method.getName(), e);
            throw e;
        }
    }
    protected String getServiceName(String className) {
        // 分割類限定名
        String[] packages = className.split("\\.");
        // 判斷包路徑長(zhǎng)度
        if (packages.length > 3) {
            // 獲取子產(chǎn)品包名
            String serviceName = packages[2];
            // 讀取緩存
            if (services.containsKey(serviceName)) {
                return services.get(serviceName);
            } else if (StringUtils.startsWith(serviceName, SERVICE_PREFIX)) {  // service服務(wù)
                services.put(serviceName, serviceName.replace(SERVICE_PREFIX, StringUtils.EMPTY));
            } else if (StringUtils.startsWith(serviceName, PROVIDER_PREFIX.toLowerCase())) {    // provider服務(wù)
                services.put(serviceName, serviceName.replace(PROVIDER_PREFIX.toLowerCase(), PROVIDER_PREFIX));
            }
            return services.get(serviceName);
        }
        return StringUtils.EMPTY;
    }
}

public class CustomWebMvcConfig implements WebMvcRegistrations {
    @Override
    public RequestMappingHandlerMapping getRequestMappingHandlerMapping() {
        RequestMappingHandlerMapping handlerMapping = new PackagePathRequestMappingHandler();
        handlerMapping.setOrder(Ordered.HIGHEST_PRECEDENCE);
        return handlerMapping;
    }
}