spring cloud微服務分散式雲架構--服務註冊(consul)

使用者6866800318發表於2019-03-19

一、consul 簡介

consul 具有以下性質:

服務發現:consul通過http 方式註冊服務,並且服務與服務之間相互感應。

服務健康監測

key/value 儲存

多資料中心

consul可執行在mac windows linux 等機器上。Spring Cloud大型企業分散式微服務雲架構原始碼請加一七九一七四三三八零

二、consul安裝

linux

$ mkdir -p $GOPATH/src/github.com/hashicorp && cd $!
$ git clone https:// github. com/ hashicorp/ consul.git
$ cd consul
$ make bootstrap
$ make bootstrap
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windows下安裝:

見consul怎麼在windows下安裝

三、構建工程

構建一個consul-miya的springboot工程,匯入依賴pring-cloud-starter-consul-discovery,其依賴檔案:

<?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.forezp</groupId>
	<artifactId>consul-miya</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>consul-miya</name>
	<description>Demo project for Spring Boot</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.2.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.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-web</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>Dalston.RELEASE</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>
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在其入口檔案ConsulMiyaApplication加入註解@EnableDiscoveryClient,開啟服務發現:

@SpringBootApplication
@EnableDiscoveryClient
@RestController
public class ConsulMiyaApplication {

	@RequestMapping("/hi")
	public String home() {
		return "hi ,i'm miya";
	}

	public static void main(String[] args) {
		new SpringApplicationBuilder(ConsulMiyaApplication.class).web(true).run(args);
	}
}
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在其配置檔案application.yml指定consul服務的埠為8500:

spring:
  cloud:
    consul:
      host: localhost
      port: 8500
      discovery:
        healthCheckPath: ${management.contextPath}/health
        healthCheckInterval: 15s
        instance-id: consul-miya
  application:
    name: consul-miya
server:
  port: 8502
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啟動工程,訪問localhost:8500,可以發現consul-miya被註冊了。

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