对于List <monetartyamount>

时间:2018-05-01 07:57:51

标签: swagger swagger-ui springfox

我在springboot项目上使用swagger。 问题出现在端点上,该端点返回具有MonetaryAmount列表的实体,即(List<MonetaryAmount> rates

Swagger-ui显示此类端点的错误数据:

{
  "rates": [
    null
  ]
}

但是我希望将每个MonetaryAmount值看作Double和String对。像这样的Smth:

{
  "rates": [
   {"currency":"EUR", "rate": 12.23}
  ]
}

我尝试使用directModelSubstitute但似乎它不适用于List。

这是我的模特:

public class CurrencyRatesResponse implements Serializable {

private List<MonetaryAmount> rates;

public CurrencyRatesResponse() {
}

public CurrencyRatesResponse(List<MonetaryAmount> rates) {
    this.rates = rates;
}

public List<MonetaryAmount> getRates() {
    return rates;
}

public void setRates(List<MonetaryAmount> rates) {
    this.rates = rates;
}
}

这是我的终点

的一个例子
@RequestMapping(path = "/public/rates", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
public CurrencyRatesResponse getRates() {...}

生成的招摇JSON:

 "/public/rates":{
         "get":{
            "tags":[
               "rate-endpoint"
            ],
            "summary":"getRates",
            "operationId":"getRatesUsingGET",
            "produces":[
               "application/json;charset=UTF-8"
            ],
            "parameters":[
               {
                 ....
               }
            ],
            "responses":{
               "200":{
                  "description":"OK",
                  "schema":{
                     "$ref":"#/definitions/CurrencyRatesResponse"
                  }
               },
               "401":{
                  "description":"Unauthorized"
               },
               "403":{
                  "description":"Forbidden"
               },
               "404":{
                  "description":"Not Found"
               }
            }
         }
      }
    }  ....

   "CurrencyRatesResponse":{
         "type":"object",
         "properties":{
            "rates":{
               "type":"array",
               "items":{
                  "$ref":"#/definitions/MonetaryAmount"
               }
            }
         },
         "title":"CurrencyRatesResponse"
      },

1 个答案:

答案 0 :(得分:4)

实现这一目标有几个步骤。

首先,我们需要正确的objectMapper,以便MonetaryAmount映射到具有两个字段currencyrate的正确对象。为此,我们需要为springfox的objectMapper添加自定义模块。

import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;
import org.zalando.jackson.datatype.money.MoneyModule;
import springfox.documentation.schema.configuration.ObjectMapperConfigured;

@Component
public class SwaggerJacksonModule implements ApplicationListener<ObjectMapperConfigured> {

    @Override
    public void onApplicationEvent(ObjectMapperConfigured event) {
        event.getObjectMapper().registerModule(new MoneyModule());
    }
}

说明:我们在springfox的ObjectMapperConfigured事件中添加一个监听器,每当触发事件时,我们只需获取映射器并注册我们的模块。我使用Zalando's Jackson数据类型资金库,这样我就不会自己编写。

下一步是处理实际的Swagger表示。让我们创建自己的表示对象MonetaryWrapper,我们将用它来代替MonetaryAmount

public class MonetaryWrapper {

    private BigDecimal amount;

    private String currency;

  // getters and setters  (getters are important)
}

为了使单个对象表示正确,它足以将.directModelSubstitute(MonetaryAmount.class, MonetaryWrapper.class)添加到Docket对象。

但是收藏并不那么简单。例如,在这种情况下列出。我们需要将特殊AlternateTypeRule对象添加到Docket对象中,以便正确显示列表。

有关Springfox&#39; s documentation

中有关此主题的更多详细信息

这样的事情:

TypeResolver resolver = new TypeResolver();
AlternateTypeRule monetaryAmountListRule =
        newRule(resolver.resolve(List.class,  MonetaryAmount.class),
                resolver.resolve(List.class, MonetaryWrapper.class))

最后我们的Docket bean看起来像这样:

@Bean
public Docket productApi() {
    TypeResolver resolver = new TypeResolver();
    AlternateTypeRule monetaryAmountListRule =
            newRule(resolver.resolve(List.class,  MonetaryAmount.class),
                    resolver.resolve(List.class, MonetaryWrapper.class));


    return new Docket(DocumentationType.SWAGGER_2)
            .alternateTypeRules(monetaryAmountListRule)
            .directModelSubstitute(MonetaryAmount.class, MonetaryWrapper.class)
            .select().apis(RequestHandlerSelectors.basePackage("com.swagger.test"))
            .paths(PathSelectors.regex("/public.*")).build();
}

这里有一些演示截图:

执行请求时演示:

DEMO endpoint result

演示仅用于对象描述

Demo representation result