SpringBoot+Swagger整合API

SpringBoot+Swagger整合API

Swagger:整合规范的api，有界面的操作，测试

1.在pom.xml加入swagger依赖

<!--整合Swagger2配置类-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>

2.在application.yml开启swagger

#引入swagger
swagger:
  enable: true

　　

3.配置SwaggerConfiguration.java

注意：@Value("${swagger2.basePackage:com.spingcloud.serviceconsumer.controller}") 添加扫描的api入口

@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;

    @Bean
    public Docket createRestApi() {

        //添加query参数start
        ParameterBuilder 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end

        return 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;
    }

}

4.在Controller类上添加:

@RestController
//@RequestMapping("/api/v1/order")
@RequestMapping(value = "api")
@Api("OrderFeginController相关的api")
public class OrderFeginController {

    @Autowired
    private 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;
    }
}