@Configuration
@EnableSwagger2
public class SwaggerConfiguration  {@Value("${swagger2.basePackage:com.spingcloud.serviceconsumer.controller}")private String swagger2BasePackage;@Value("${swagger2.title:系统API文档}")private String swagger2Title;@Value("${swagger2.api.version:2.0}")private String apiVersion;@Beanpublic Docket createRestApi() {//添加query参数startParameterBuilder tokenPar = new ParameterBuilder();List<Parameter> pars = new ArrayList<Parameter>();
//        tokenPar.name("token").description("令牌").modelRef(new ModelRef("string")).parameterType("query").required(true).build();
        pars.add(tokenPar.build());//添加query参数endreturn new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()).select().apis(RequestHandlerSelectors.basePackage(swagger2BasePackage)).paths(PathSelectors.any()).build()
//                .globalOperationParameters(pars)//添加验证
//                .securitySchemes(securitySchemes())
//                .securityContexts(securityContexts())//添加验证
                ;}private ApiInfo apiInfo() {return new ApiInfoBuilder().title(swagger2Title).version(apiVersion).build();}private List<ApiKey> securitySchemes() {List<ApiKey> apiKeyList= new ArrayList();apiKeyList.add(new ApiKey("token", "令牌", "header"));return apiKeyList;}private List<SecurityContext> securityContexts() {List<SecurityContext> securityContexts=new ArrayList<>();securityContexts.add(SecurityContext.builder().securityReferences(defaultAuth()).forPaths(PathSelectors.regex("^(?!auth).*$")).build());return securityContexts;}List<SecurityReference> defaultAuth() {AuthorizationScope authorizationScope = new AuthorizationScope("global", "accessEverything");AuthorizationScope[] authorizationScopes = new AuthorizationScope[1];authorizationScopes[0] = authorizationScope;List<SecurityReference> securityReferences=new ArrayList<>();securityReferences.add(new SecurityReference("Authorization", authorizationScopes));return securityReferences;}}

@RestController
//@RequestMapping("/api/v1/order")
@RequestMapping(value = "api")
@Api("OrderFeginController相关的api")
public class OrderFeginController {@Autowiredprivate ProductOrderFeginService productOrderFeginService;//限流：对外提供一个服务接口，允许最大并发数为10
//    private final Semaphore permit = new Semaphore(4, true);//当调用微服务出现异常会降级到saveOrderFail方法中@HystrixCommand(fallbackMethod = "saveOrderFail")@RequestMapping(value = "/saveorder",method = RequestMethod.GET)@ApiOperation(value = "根据id查询商品信息", notes = "查询数据库中某个的商品信息")@ApiImplicitParams({@ApiImplicitParam(name = "user_id",paramType = "query", value = "用户ID", required = true),@ApiImplicitParam(name = "product_id",value = "商品ID",required = true,paramType = "query",dataType = "string")})public Object saveorder(@RequestParam("user_id")int userId, @RequestParam("product_id") int productId) throws InterruptedException {return productOrderFeginService.saveorder(userId, productId);}//注意，方法签名一定要要和api方法一致private Object saveOrderFail(int userId, int productId){System.out.println("controller中的降级方法");Map<String, Object> msg = new HashMap<>();msg.put("code", -1);msg.put("msg", "抢购人数太多，您被挤出来了，稍等重试");return msg;}
}