Spring Cloud Consul

Love The Way You Lie 2022-05-23 07:54 78阅读 0赞

先去官网下载 [https://www.consul.io/downloads.html][https_www.consul.io_downloads.html]  
![这里写图片描述][70]

解压

unzip consul_1.1.0_linux_amd64.zip -d /home/qinwei/consul/

在 .bash\_profile 中添加 export PATH=$PATH:/home/qinwei/consul

vim .bash_profile
    source .bash_profile

consul version 查看是否成功  
![这里写图片描述][70 1]

一些概念可以先看看官网介绍 [https://www.consul.io/docs/internals/architecture.html][https_www.consul.io_docs_internals_architecture.html]

consul 和 zookeeper 都属于CAP理论中的CP，Eureka 是AP

启动

consul agent -server -bootstrap -data-dir=data/consul/ -datacenter=springcloud -bind=本机ip  -client 0.0.0.0 -ui -node=server

-server 以server模式启动 -bootstrap 可以自行选择为leader（一个datacenter最多只能运行一个） -datacenter 指定datacenter -client 设为0.0.0.0，才能连接（默认是127.0.0.1）

放开8500端口

firewall-cmd --zone=public --add-port=8500/tcp --permanent
    firewall-cmd --reload

![这里写图片描述][70 2]

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>com.example</groupId>
        <artifactId>consul-client</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>
    
        <name>consul-client</name>
        <description>Demo project for Spring Cloud</description>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.5.13.RELEASE</version>
            <relativePath/> 
        </parent>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <java.version>1.8</java.version>
            <spring-cloud.version>Edgware.SR3</spring-cloud.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-consul-discovery</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>
    
        <dependencyManagement>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>${spring-cloud.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    
    </project>

ConsulClientApplication .java

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

bootstrap.yml

spring:
      application:
        name: consul-client
      cloud:
        consul:
          host: ip #consul部署的地址
          port: 8500
          discovery:
            health-check-path: /consul-client/health #默认是/health，如果配置了context-path，要修改为/context-path/health
            health-check-interval: 20s #健康检查间隔，默认是10s
            instance-id: consul-client
            hostname: ip #本机地址
            service-name: localhost-service-1
    server:
      port: 8090
      context-path: /consul-client

![这里写图片描述][70 3]  
![这里写图片描述][70 4]  
![这里写图片描述][70 5]

[https_www.consul.io_downloads.html]: https://www.consul.io/downloads.html
[70]: /images/20220523/a1a534ae1e9a4a158330ff4a6eb13170.png
[70 1]: /images/20220523/933c6d935671433582492b30576175cb.png
[https_www.consul.io_docs_internals_architecture.html]: https://www.consul.io/docs/internals/architecture.html
[70 2]: /images/20220523/f809cfa00808423f84c867ad3f0acbc8.png
[70 3]: /images/20220523/272eb0ff4a154efebcf48a77c52400fd.png
[70 4]: /images/20220523/c489665930274f3bbaacadfaf3eef914.png
[70 5]: /images/20220523/a2d6a85283d541d8a331bd16733dbf56.png