首先安装consul环境,参照之前的文章:http://www.zzvips.com/article/142903.html
项目规划,2个服务端,1个客户端
首先来看服务端,
一:服务端1:
项目依赖
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<dependencymanagement> <dependencies> <dependency> <groupid>org.springframework.cloud</groupid> <artifactid>spring-cloud-consul-dependencies</artifactid> <version> 1.0 . 1 .release</version> <type>pom</type> <scope> import </scope> </dependency> </dependencies> </dependencymanagement> <dependencies> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-actuator</artifactid> <version> 1.3 . 5 .release</version> </dependency> <dependency> <groupid>org.springframework.cloud</groupid> <artifactid>spring-cloud-starter-consul-discovery</artifactid> </dependency> </dependencies> |
注意,增加spring-boot-actuator是为了项目可以访问/health 路径来判断服务是否健康
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package com.pp.consul1; import org.springframework.boot.springapplication; import org.springframework.boot.autoconfigure.springbootapplication; import org.springframework.cloud.client.discovery.enablediscoveryclient; import org.springframework.web.bind.annotation.requestmapping; import org.springframework.web.bind.annotation.restcontroller; @springbootapplication @enablediscoveryclient @restcontroller public class consulapp { @requestmapping ( "/home" ) public object home() { system.out.println( "1111111111111" ); return "ok11" ; } public static void main( string[] args ) { springapplication.run(consulapp. class , args); } } |
application.properties 配置内容
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server.port= 9955 spring.application.name=consul-server- 1 spring.cloud.consul.host= 192.168 . 1.100 spring.cloud.consul.port= 8500 spring.cloud.consul.enabled= true spring.cloud.consul.discovery.enabled= true spring.cloud.consul.discovery.instanceid=tomcat1 spring.cloud.consul.discovery.servicename=tomcat spring.cloud.consul.discovery.hostname= 192.168 . 2.95 spring.cloud.consul.discovery.port=${server.port} spring.cloud.consul.discovery.healthcheckurl=http: //192.168.2.95:9955/health spring.cloud.consul.discovery.healthcheckinterval=10s spring.cloud.consul.discovery.tags=dev |
看过我之前文章的,应该对这些配置很清楚了。这样,一个服务端就配置写好了。
由于我们增加了@enablediscoveryclient注解,所以,系统启动的时候,就会向consul注册一个服务,服务的名字为tomcat, id为tomcat1
访问consul的http api /v1/catalog/service/tomcat 输出如下:
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{ "node" : "192.168.1.100" , "address" : "192.168.1.100" , "serviceid" : "tomcat1" , "servicename" : "tomcat" , "servicetags" :[ "dev" ], "serviceaddress" : "192.168.2.95" , "serviceport" : 9955 , "serviceenabletagoverride" : false , "createindex" : 993 , "modifyindex" : 1057 } |
二:服务端2
项目依赖和上面一样
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package com.pp.consul2; import org.springframework.boot.springapplication; import org.springframework.boot.autoconfigure.springbootapplication; import org.springframework.cloud.client.discovery.enablediscoveryclient; import org.springframework.web.bind.annotation.requestmapping; import org.springframework.web.bind.annotation.restcontroller; @springbootapplication @enablediscoveryclient @restcontroller public class consulapp { @requestmapping ( "/home" ) public object home() { system.out.println( "2222222222222222" ); return "ok22" ; } public static void main( string[] args ) { springapplication.run(consulapp. class , args); } } |
application.properties 配置内容:
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server.port= 9966 spring.application.name=consul-server- 2 spring.cloud.consul.host= 192.168 . 1.100 spring.cloud.consul.port= 8500 spring.cloud.consul.enabled= true spring.cloud.consul.discovery.enabled= true spring.cloud.consul.discovery.instanceid=tomcat2 spring.cloud.consul.discovery.servicename=tomcat spring.cloud.consul.discovery.hostname= 192.168 . 2.95 spring.cloud.consul.discovery.port=${server.port} spring.cloud.consul.discovery.healthcheckurl=http: //192.168.2.95:9966/health spring.cloud.consul.discovery.healthcheckinterval=10s spring.cloud.consul.discovery.tags=test |
三:客户端
项目依赖,只需要spring-cloud-starter-consul-discovery
application.properties 配置内容:
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server.port= 9977 spring.application.name=consul-client spring.cloud.consul.host= 192.168 . 1.100 spring.cloud.consul.port= 8500 spring.cloud.consul.discovery.register= false |
注意,这里的spring.cloud.consul.discovery.register需要配置成false,否则系统启动的时候,会向consul注册一个服务
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package com.pp.client; import org.springframework.beans.factory.annotation.autowired; import org.springframework.boot.springapplication; import org.springframework.boot.autoconfigure.springbootapplication; import org.springframework.cloud.client.discovery.discoveryclient; import org.springframework.cloud.client.discovery.enablediscoveryclient; import org.springframework.cloud.client.loadbalancer.loadbalancerclient; import org.springframework.web.bind.annotation.requestmapping; import org.springframework.web.bind.annotation.restcontroller; @springbootapplication @enablediscoveryclient @restcontroller public class consulclient { @autowired private loadbalancerclient loadbalancer; @autowired private discoveryclient discoveryclient; /** * 从所有服务中选择一个服务(轮询) */ @requestmapping ( "/discover" ) public object discover() { return loadbalancer.choose( "tomcat" ).geturi().tostring(); } /** * 获取所有服务 */ @requestmapping ( "/services" ) public object services() { return discoveryclient.getinstances( "tomcat" ); } public static void main( string[] args ) { springapplication.run(consulclient. class , args); } } |
启动之后,就可以访问/discover,/services 查看效果了。
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/mn960mn/article/details/51775212