我试图在我的微服务项目中生成一个swagger，在Api Gateway中将所有的服务swagger聚合成一个swagger。
这里的问题是，当我尝试设置绝对URL时，我收到的输出是***Failed to load API definition. undefined http://localhost:8070/apihttp://localhost:8081/api/v2/api-docs***其中 localhost：8070/api 是API网关的基本URL，localhost：8081/api/v2/api-docs 是微服务的swagger的docs URL。
下面是我的代码：

摇摆配置

package com.rfd.apigateway.swagger;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;

import java.util.List;

@Configuration
@ConfigurationProperties(prefix = "swagger")
public class SwaggerConfiguration {

    private List<Resource> resources;

    public List<Resource> getResources() {
        return resources;
    }

    public void setResources(List<Resource> resources) {
        this.resources = resources;
    }
}

资源

package com.rfd.apigateway.swagger;

public class Resource {
    private String name;
    private String url;
    private String version;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public String getVersion() {
        return version;
    }

    public void setVersion(String version) {
        this.version = version;
    }
}

文档控制器

package com.rfd.apigateway.swagger;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.Primary;
import org.springframework.stereotype.Component;
import springfox.documentation.swagger.web.SwaggerResource;
import springfox.documentation.swagger.web.SwaggerResourcesProvider;

import java.util.ArrayList;
import java.util.List;

@Component
@Primary
@EnableAutoConfiguration
public class DocumentationController implements SwaggerResourcesProvider {

    private SwaggerConfiguration swaggerConfiguration;

    @Autowired
    public DocumentationController(SwaggerConfiguration swaggerConfiguration){
        this.swaggerConfiguration = swaggerConfiguration;
    }

    @Override
    public List get() {
        List resources = new ArrayList<>();
        for(Resource resource : this.swaggerConfiguration.getResources()){
            resources.add(createSwaggerResource(resource));
        }

        return resources;
    }

    private SwaggerResource createSwaggerResource(Resource resource) {
        SwaggerResource swaggerResource = new SwaggerResource();
        swaggerResource.setName(resource.getName());
        swaggerResource.setUrl(resource.getUrl());
        swaggerResource.setSwaggerVersion(resource.getVersion());
        return swaggerResource;
    }
}

最后，应用程序.yml

swagger:
  resources:
    - name: transactions
      url: http://localhost:8081/api/v2/api-docs
      version: 1.0
    - name: payments
      url: http://localhost:8083/api/v2/api-docs
      version: 1.0

下面几张图片可以帮助您了解问题：
Api网关 swagger 的URL x1c 0d1x
微服务api-docs URL