註冊中心也叫服務中心，用於註冊服務，管理服務，所有的介面都是執行在這之上的。

pom.xml

<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.springcloud.demo</groupId>
	<artifactId>eureka-server</artifactId>
	<version>dev</version>
	<packaging>jar</packaging>
	<description>服務註冊中心</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.7.RELEASE</version>
		<relativePath />
	</parent>

	<properties>
		<!--main方法類 -->
		<start-class>com.cc.yonyou.BootMain</start-class>
		<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>Dalston.SR4</spring-cloud.version>
		<swagger.version>2.2.2</swagger.version>
	</properties>

	<dependencies>
		<!--eureka server -->
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-eureka-server</artifactId>
		</dependency>

		<!--表示為web工程 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>


		<!--暴露各種指標 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>

	</dependencies>

	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-netflix</artifactId>
				<version>1.4.0.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>
			<!--打包跳過測試外掛 -->
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-surefire-plugin</artifactId>
				<configuration>
					<skip>true</skip>
				</configuration>
			</plugin>
		</plugins>
	</build>

	<repositories>
		<repository>
			<id>spring-milestones</id>
			<name>Spring Milestones</name>
			<url>https://repo.spring.io/milestone</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</repository>
	</repositories>
</project>
 

application.properties

#註冊中心名
spring.application.name=eureka-server
#註冊中心埠號
server.port=12000
#註冊中心ip地址
eureka.instance.hostname=localhost
#註冊中心訪問路徑
eureka.client.serviceUrl.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/
#是否註冊自己，沒有必要註冊自己
eureka.client.registerWithEureka= false
#是否從eureka伺服器獲取註冊
eureka.client.fetchRegistry= false
#設定清時間
eureka.server.eviction-interval-timer-in-ms=40000
 

BootMain.java

package com.springcloud.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

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

主要是新增@SpringBoot啟動類註解，@EnableEurekaServer標誌為註冊中心啟動介面