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本文搭建一个Ribbon实现负载均衡的效果

pom文件：

   
   	
    
     4.0.0
    	
    		
     
      org.springframework.boot
     		
     
      spring-boot-starter-parent
     		
     
      2.1.1.RELEASE
     		
      
     	
    	
    
     com.zsy.cloud
    	
    
     cloud-ribbon
    	
    
     0.0.1-SNAPSHOT
    	
    
     jar
    		
    
     cloud-ribbon
    	
    
     http://maven.apache.org
    	
    		
     
      1.8
     		
     
      Greenwich.M3
     	
    	
    	    
                 
      
       org.springframework.boot
                  
      
       spring-boot-starter-web
              
     	    
                 
      
       org.springframework.cloud
                  
      
       spring-cloud-starter-netflix-ribbon
              
     		
     			
      
       org.springframework.cloud
      			
      
       spring-cloud-starter-netflix-eureka-client
      		
     		
     		  
      
       junit
      		  
      
       junit
      		  
      
       3.8.1
      		  
      
       test
      		
     	
    		
    		
     			
      				
       
        org.springframework.cloud
       				
       
        spring-cloud-dependencies
       				
       
        ${spring-cloud.version}
       				
       
        pom
       				
       
        import
       			
      		
     	
    	
    		
     			
      				
       
        org.springframework.boot
       				
       
        spring-boot-maven-plugin
       			
      		
     	
    		
    		
     			
      
       spring-milestones
      			
      
       Spring Milestones
      			
      
       https://repo.spring.io/milestone
      			
      				
       
        false
       			
      		
     	
    
   

properties文件：

server.port=2222spring.application.name=ribboneureka.client.service-url.defaultZone=http://register1:8081/eureka

启动类：

package com.zsy.cloud.cloud_ribbon;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.client.discovery.EnableDiscoveryClient;import org.springframework.cloud.client.loadbalancer.LoadBalanced;import org.springframework.context.annotation.Bean;import org.springframework.web.client.RestTemplate;@SpringBootApplication@EnableDiscoveryClientpublic class RibbonApp {	public static void main(String[] args) {		SpringApplication.run(RibbonApp.class, args);	}		@Bean	@LoadBalanced	RestTemplate restTemplate() {		return new RestTemplate();	}}

Controller类：

package com.zsy.cloud.cloud_ribbon.controller;import javax.servlet.http.HttpServletRequest;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.cloud.client.loadbalancer.LoadBalanced;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RequestMapping;import com.zsy.cloud.cloud_ribbon.service.TestService;@Controllerpublic class TestController {	@Autowired	private TestService testService;	@GetMapping("/hello")	@LoadBalanced	public String test(String name) {		return testService.test(name);	}}

Service类：

package com.zsy.cloud.cloud_ribbon.service;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import org.springframework.web.client.RestTemplate;@Servicepublic class TestService {	@Autowired	private RestTemplate template;	public String test(String name) {		return template.getForObject("http://eureka-client/test?name="+name, String.class);	}}

启动注册中心，测试站点（4个，不同端口），效果图如下：

访问controller路径：

转载地址：http://fvbai.baihongyu.com/