pom.xml

     
     	
      
       4.0.0
      	
      
       com.ggr
      	
      
       feign
      	
      
       0.0.1-SNAPSHOT
      	
      
       jar
      	
      
       springcloudService-feign
      	
      
       Demo project for Spring Boot
      	
      		
       
        org.springframework.boot
       		
       
        spring-boot-starter-parent
       		
       
        2.0.2.BUILD-SNAPSHOT
       		
        
       	
      	
      		
       
        UTF-8
       		
       
        UTF-8
       		
       
        1.8
       		
       
        Finchley.BUILD-SNAPSHOT
       	
      	
      			
       			
        
         org.springframework.cloud
        			
        
         spring-cloud-starter-netflix-eureka-server
        		
               
                   
        
         org.springframework.cloud
                    
        
         spring-cloud-starter-openfeign
                
       		
       			
        
         org.springframework.boot
        			
        
         spring-boot-starter-test
        			
        
         test
        		
       	
      	
      		
       			
        				
         
          org.springframework.cloud
         				
         
          spring-cloud-dependencies
         				
         
          ${spring-cloud.version}
         				
         
          pom
         				
         
          import
         			
        		
       	
      	
      		
       			
        				
         
          org.springframework.boot
         				
         
          spring-boot-maven-plugin
         			
        		
       	
      	
      		
       			
        
         spring-snapshots
        			
        
         Spring Snapshots
        			
        
         https://repo.spring.io/snapshot
        			
        				
         
          true
         			
        		
       		
       			
        
         spring-milestones
        			
        
         Spring Milestones
        			
        
         https://repo.spring.io/milestone
        			
        				
         
          false
         			
        		
       	
      	
      		
       			
        
         spring-snapshots
        			
        
         Spring Snapshots
        			
        
         https://repo.spring.io/snapshot
        			
        				
         
          true
         			
        		
       		
       			
        
         spring-milestones
        			
        
         Spring Milestones
        			
        
         https://repo.spring.io/milestone
        			
        				
         
          false
         			
        		
       	
      
     

App

package com.ggr.feign;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.client.discovery.EnableDiscoveryClient;import org.springframework.cloud.openfeign.EnableFeignClients;@SpringBootApplication@EnableDiscoveryClient@EnableFeignClientspublic class SpringcloudServiceFeignApplication {	public static void main(String[] args) {		SpringApplication.run(SpringcloudServiceFeignApplication.class, args);	}}

　　

　　Controller

package com.ggr.feign.controller;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.RestController;@RestControllerpublic class HiController {    @Autowired    HystrixClient schedualServiceHi;    @RequestMapping(value = "/hi",method = RequestMethod.GET)    public String sayHi(@RequestParam String name){        return schedualServiceHi.sayHiFromClientOne(name);    }}

　　

FeignClient

package com.ggr.feign.controller;import org.springframework.cloud.openfeign.FeignClient;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;@FeignClient(value="service-hi",fallback=HystrixClientFallbackFactory.class)public interface HystrixClient  {	@RequestMapping(value = "/hi",method = RequestMethod.GET)    String sayHiFromClientOne(@RequestParam(value = "name") String name);}

　　application.yml

eureka:  client:    serviceUrl:      defaultZone: http://localhost:9000/eureka/server:  port: 9005spring:  application:    name: service-feign