本文共 4944 字，大约阅读时间需要 16 分钟。

先是写eureka-server注册中心应用test-server：

pom文件：

     
    
     4.0.0
      
    
     com.sino.cloud
      
    
     test-server
      
    
     0.0.1-SNAPSHOT
      
    
     testServer
        
    		
     
      UTF-8
     		
     
      UTF-8
     		
     
      1.8
     	
    	
    	    
     
      org.springframework.boot
     	    
     
      spring-boot-starter-parent
     	    
     
      1.4.1.RELEASE
     	
    	
    	    
     	        
      	            
       
        org.springframework.cloud
       	            
       
        spring-cloud-starter-parent
       	            
       
        Camden.SR1
       	            
       
        pom
       	            
       
        import
       	        
      	    
     	
    	
    	
             
                 
      
       org.springframework.cloud
                  
      
       spring-cloud-starter-eureka-server
              
             
     		
     			
      
       org.springframework.boot
      			
      
       spring-boot-starter-web
      		
     		
     	        
      
       org.springframework.cloud
      	        
      
       spring-cloud-starter-config
      	    
     	
    	
    		
     			
      				
       
        org.springframework.boot
       				
       
        spring-boot-maven-plugin
       			
      		
     	
        
   

然后是application.yml文件：

server:  port: 8761eureka:   client:    register-with-eureka: false #是否将eureka自身作为应用注册到eureka注册中心    fetch-registry: false  #为true时，可以启动，但报异常：Cannot execute request on any known server    service-url:      defaultZone: http://localhost:8761/eureka/

最后是Application.java类：

package com.sino.cloud;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.boot.builder.SpringApplicationBuilder;import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;@SpringBootApplication@EnableEurekaServerpublic class Application {		public static void main(String[] args) {        new SpringApplicationBuilder(Application.class).web(true).run(args);    }}

run启动后，本地启动http://localhost:8761 就进入了eureka注册中心。，、

然后是客户端test-provider:

先是pom文件：

     
    
     4.0.0
      
    
     com.spring.sino.cloud
      
    
     test-provider
      
    
     0.0.1-SNAPSHOT
      
    
     testProvider
        
    		
     
      UTF-8
     		
     
      UTF-8
     		
     
      1.8
     	
    	
    	    
     
      org.springframework.boot
     	    
     
      spring-boot-starter-parent
     	    
     
      1.4.1.RELEASE
     	
    	
    	    
     	        
      	            
       
        org.springframework.cloud
       	            
       
        spring-cloud-starter-parent
       	            
       
        Camden.SR1
       	            
       
        pom
       	            
       
        import
       	        
      	    
     	
    	
    	
             
             
     		    
      
       org.springframework.cloud
      		    
      
       spring-cloud-starter-eureka
      		
     		
     			
      
       org.springframework.boot
      			
      
       spring-boot-starter-web
      		
     		
     			
      
       org.springframework.boot
      			
      
       spring-boot-starter-data-jpa
      		
     		
     			
      
       org.springframework.boot
      			
      
       spring-boot-starter-actuator
      		
     		
     			
      
       com.h2database
      			
      
       h2
      		
     			
    	
    		
     			
      				
       
        org.springframework.boot
       				
       
        spring-boot-maven-plugin
       			
      		
     	
        
   

然后是application.yml文件：

server:  port: 8082spring:  application:      name: sample-client   #为你的应用起个名字，该名字将注册到eureka注册中心eureka:  client:     service-url:       defaultZone: http://localhost:8761/eureka/  instance:    prefer-ip-address: true #表示把ip注册进入   instance:     prefer-ip-address: true #表示把ip注册进入    instance-id: ${spring.application.name}:${spring.application.instance_id:${server.port}} #自定义实例id,也就是注册中的status值     

最后是启动类Application.java:

package com.cloud;import org.springframework.boot.autoconfigure.EnableAutoConfiguration;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.boot.builder.SpringApplicationBuilder;import org.springframework.cloud.client.discovery.EnableDiscoveryClient;import org.springframework.cloud.netflix.eureka.EnableEurekaClient;import org.springframework.context.annotation.ComponentScan;import org.springframework.context.annotation.Configuration;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;@SpringBootApplication@EnableDiscoveryClient@RestControllerpublic class Application {	//@EnableDiscoveryClient  @EnableEurekaClient	    @RequestMapping("/")    public String home() {        return "Hello world";    }    public static void main(String[] args) {        new SpringApplicationBuilder(Application.class).web(true).run(args);    }}

刷新localhost:7861页面，看到注册信息。

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