SpringBoot使用Feign调用其他服务接口

<!-- https://mvnrepository测试数据/artifact/org.springframework.cloud/spring-cloud-starter-openfeign -->

< dependency >

  < groupId >org.springframework.cloud</ groupId >

  < artifactId >spring-cloud-starter-openfeign</ artifactId >

  < version >2.0.4.RELEASE</ version >

</ dependency >

import com.bhz.demo.client.domain.req.ProductReceiveReq;

import com.bhz.demo.client.domain.resp.MemberPointBaseResp;

import com.bhz.demo.client.domain.resp.UserPointResp;

import org.springframework.cloud.openfeign.FeignClient;

import org.springframework.web.bind.annotation.PathVariable;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

/**

  * @Author guomz

  * @create 2021/3/15 14:50

  */

@FeignClient (url = "HdhCmsTest123测试数据" , name = "demoClient" )

public interface DemoClient {

   @RequestMapping (value = "/demo/user/{uuid}/{name}" , method = RequestMethod.GET)

   DemoBaseResp<DemoUserResp> getUser( @PathVariable ( "uuid" ) String uuid, @PathVariable ( "name" ) String name);

   @RequestMapping (value = "/demo/buy" , method = RequestMethod.POST)

   DemoBaseResp buyProduct(DemoBuyReq req);

}

@Service

@Slf4j

public class DemoService {

  @Autowired

  private DemoClient demoClient;

  public void getUser(Long id){

     demoClient.getUser( "123" , "abc" );

  }

}

<!-- https://mvnrepository测试数据/artifact/org.springframework.cloud/spring-cloud-starter-netflix-ribbon -->

< dependency >

  < groupId >org.springframework.cloud</ groupId >

  < artifactId >spring-cloud-starter-netflix-ribbon</ artifactId >

  < version >2.0.4.RELEASE</ version >

</ dependency >

import feign.Client;

import org.springframework.beans.factory.annotation.Qualifier;

import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;

import org.springframework.cloud.netflix.ribbon.SpringClientFactory;

import org.springframework.cloud.openfeign.ribbon.CachingSpringLoadBalancerFactory;

import org.springframework.cloud.openfeign.ribbon.LoadBalancerFeignClient;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import javax.net.ssl.*;

import java.security.KeyManagementException;

import java.security.NoSuchAlgorithmException;

import java.security.cert.X509Certificate;

/**feign client配置

  * @Author guomz

  * @create 2021/3/16 9:52

  */

  @Configuration

public class FeignConfiguration {

/**

  * 调用https接口时绕过ssl证书验证

  * @param cachingFactory

  * @param clientFactory

  * @return

  * @throws NoSuchAlgorithmException

  * @throws KeyManagementException

  */

  @Bean

  @ConditionalOnMissingBean public Client feignClient( @Qualifier ( "cachingLBClientFactory" ) CachingSpringLoadBalancerFactory cachingFactory, SpringClientFactory clientFactory) throws NoSuchAlgorithmException, KeyManagementException {

     SSLContext ctx = SSLContext.getInstance( "TLSv1.2" );

     X509TrustManager tm = new X509TrustManager() {

         @Override

         public void checkClientTrusted(X509Certificate[] x509Certificates, String s) {

           }

         @Override

         public void checkServerTrusted(X509Certificate[] x509Certificates, String s) {

           }

         @Override

         public X509Certificate[] getAcceptedIssuers() {

             return new X509Certificate[ 0 ];

          }

     };

     ctx.init( null , new TrustManager[]{tm}, null );

     return new LoadBalancerFeignClient( new Client.Default(ctx.getSocketFactory(), new HostnameVerifier() {

     @Override

     public boolean verify(String hostname, SSLSession sslSession) {

             return true ;

     }

         }),

     cachingFactory, clientFactory);

    }

}