sc-sc - 云代码空间
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这篇文章主要介绍 spring cloud consul 组件，它是一个提供服务发现和配置的工具。consul具有分布式、高可用、高扩展性。
consul 具有以下性质：
consul可运行在mac windows linux 等机器上。
linux
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$ 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下安装：
见consul怎么在windows下安装
构建一个consul-miya的springboot工程，导入依赖pring-cloud-starter-consul-discovery，其依赖文件：
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<?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><br>
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在其入口文件ConsulMiyaApplication加入注解@EnableDiscoveryClient，开启服务发现：
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@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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在其配置文件application.yml指定consul服务的端口为8500：
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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<br>
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启动工程，访问localhost:8500,可以发现consul-miya被注册了。
架构代码如下：
