SpringCloud整合Consul作为注册中心

阳光穿透心脏的1/2处 2023-07-07 05:47 3阅读 0赞

项目地址: 链接：https://pan.baidu.com/s/1Mxo0ltvZbpz\_r8mCU-mSpw   
提取码：3j4a

### 1.下载consul  [https://www.consul.io/downloads.html][https_www.consul.io_downloads.html]  ###

### 2.以windows版为例 ,解压下载的好的文件,并启动consul.操作如下: ###

1.解压  
     2.在解压目录下启动cmd命令行  
     3.输入指令代码: consul agent -dev -ui -node=cy  
        -dev 开发服务器模式启动, -node节点名为cy , -ui可以用界面访问,默认能访问  
     4.访问localhost:8500 即可访问

### 3.创建项目注册到consul ###

1.pom.xml依赖

<dependency>
    	<groupId>org.springframework.boot</groupId>
    	<artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    
    <dependency>
    	<groupId>org.springframework.cloud</groupId>
    	<artifactId>spring-cloud-starter-consul-discovery</artifactId>
    </dependency>

2.启动类加注解  @EnableDiscoveryClient  (zookeeper和consul都是用此注解)

@SpringBootApplication
    @EnableDiscoveryClient
    public class ConsulMemberApplication {
        
    	public static void main(String[] args) {
    		SpringApplication.run(ConsulMemberApplication.class, args);
    	}
    	
    }

3. application.properties配置文件简单配置

#服务端口号
    server.port=8090
    #服务名称
    spring.application.name=consul-member
    
    #consul 端口
    spring.cloud.consul.port=8500
    #consul 地址
    spring.cloud.consul.host=localhost
    #consul 服务地址直接为ip 
    spring.cloud.consul.discovery.hostname=192.168.0.102

4.启动项目成功,查看注册到consul

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5nc2hlbmdxaWFuZzE2OA_size_16_color_FFFFFF_t_70][]

### 4.常用方法,获取注册中心注册服务列表信息 ###

discoveryClient.getInstances("服务名")

@Autowired
    private DiscoveryClient discoveryClient;
    	
    @GetMapping("/discoveryClient")
    public List<ServiceInstance> discoveryClient(){
        List<ServiceInstance> instances = discoveryClient.getInstances("consul-member");
        for (ServiceInstance instance: instances){
            System.out.println("url:" +instance.getUri());
        }
        return instances;
    }

[https_www.consul.io_downloads.html]: https://www.consul.io/downloads.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5nc2hlbmdxaWFuZzE2OA_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200221121153189.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYW5nc2hlbmdxaWFuZzE2OA==,size_16,color_FFFFFF,t_70