Eureka Hands-on cluster configuration __eureka

First, create Eurekaserver

1, create the first server, create a springboot project

1 Java code is as follows, using port 7070:

@EnableEurekaServer
@SpringBootApplication
@RestController public
class Eurekaserverapplication {
	@RequestMapping ("/exec") public  
	String Execinfo () {
		System.out.println ("Server01");//danielinbiti return
		"Server01";
	}
    public static void Main (string[] args) {
        springapplication.run (eurekaserverapplication.class, args);
    }

2) application.properties configuration is as follows

server.port=7070
spring.application.name=server-01
eureka.client.register-with-eureka=true
Eureka.client.fetch-registry=false
eureka.client.serviceurl.defaultzone=http://localhost:7070/eureka/, http://localhost:7020/eureka/
eureka.instance.metadatamap.instanceid=${spring.application.name}:${ Spring.application.instance_id:${random.value}}

2, create a second server, create a springboot project

1 Java code below, using port 7020

@EnableEurekaServer
@SpringBootApplication
@RestController public
class Eurekaserverapplication {
	@RequestMapping ("/exec") public  
	String Execinfo () {
		System.out.println ("Server02");
		return "Server02";
	}
    public static void Main (string[] args) {
        springapplication.run (eurekaserverapplication.class, args);
    }

2) application.properties

server.port=7020
spring.application.name=server-01
eureka.client.register-with-eureka=true
Eureka.client.fetch-registry=false
eureka.client.serviceurl.defaultzone=http://localhost:7070/eureka/, http://localhost:7020/eureka/
eureka.instance.metadatamap.instanceid=${spring.application.name}:${ Spring.application.instance_id:${random.value}}

Second, the creation of Eurekaclient project

1, Java code

@SpringBootApplication @EnableEurekaClient @RestController @EnableAutoConfiguration public class 
	eurekaclientapplication {@Autowired private discoveryclient discoveryclient;
	@RequestMapping ("/getinfo") public String GetInfo () {return "EkClient2";
	@Bean @LoadBalanced public resttemplate resttemplate (Resttemplatebuilder builder) {return builder.build ();
	
	@Autowired private Resttemplate resttemplate; @RequestMapping ("/exec") public string Execinfo () {return resttemplate.getforobject ("http://server-01/exec/", string
	. Class); @RequestMapping ("/registered") public String getregistered () {list<serviceinstance> List = Discov  
        Eryclient.getinstances ("STORES");  
        System.out.println (Discoveryclient.getlocalserviceinstance ());  
          System.out.println ("discoveryclient.getservices (). Size () =" + discoveryclient.getservices (). Size ()); Comment by Danielinbiti for (String S:discoveryclient.getserviceS ()) {System.out.println ("services" + s);  
            list<serviceinstance> serviceinstances = discoveryclient.getinstances (s); for (Serviceinstance si:serviceinstances) {System.out.println ("services:" + S + ": gethost () =" + Si.  
                GetHost ());  
                SYSTEM.OUT.PRINTLN ("services:" + S + ": getport () =" + Si.getport ());  
                SYSTEM.OUT.PRINTLN ("services:" + S + ": getserviceid () =" + Si.getserviceid ());  
                SYSTEM.OUT.PRINTLN ("services:" + S + ": geturi () =" + Si.geturi ());  
            SYSTEM.OUT.PRINTLN ("services:" + S + ": getmetadata () =" + Si.getmetadata ());  
        } System.out.println (List.size ());  
        if (list!= null && list.size () > 0) {System.out.println (list.get (0). GetURI ());  
    Return to "success"; public static void Main (string[] args) {SpringapplicatiOn.run (Eurekaclientapplication.class, args); }
}

2, application.properties configuration file

server.port=6060
spring.application.name=client-02
eureka.client.serviceurl.defaultzone=http:// localhost:7070/eureka/
eureka.instance.metadatamap.instanceid=${pro_test:5555}

Third, after starting the above services, then IE Address bar access

Http://localhost:6060/exec will come back and forth Server01,server02

Four, note the point:

Resttemplate creation is a need to add a load policy, @LoadBalanced