手把手搭建微服务框架（一）：搭建注册中心Eureka

1、新建maven工程，在pom.xml导入相关依赖

<!-- springboot核心JAR包 -->
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.2.RELEASE</version>
		<relativePath />
	</parent>
	<!-- 配置JDK1.8 -->
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
	</properties>
	<!-- 注册中心 -->
	<dependencies>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-eureka-server</artifactId>
		</dependency>
	</dependencies>
	
	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-dependencies</artifactId>
				<version>Dalston.RC1</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>
	<repositories>
		<repository>
			<id>spring-milestones</id>
			<name>Spring Milestones</name>
			<url>https://repo.spring.io/milestone</url>
			<snapshots>
				<enabled>false</enabled>
			</snapshots>
		</repository>
	</repositories>

2.在resources目录下新建application.properties

#设置服务器端口
server.port=5555
#主机名
eureka.instance.hostname=localhost
#是否将该应用实例注册到 Eureka Server
eureka.client.register-with-eureka=true
#逗号分隔的区域列表，提取eureka注册表信息
eureka.client.fetch-registry=false
#可用区域映射到与eureka服务器通信的完全限定URL列表。每个值可以是单个URL或逗号分隔的备用位置列表。(http://${eureka.instance.hostname}: ${server.port}/eureka/)
eureka.client.serviceUrl.defaultZone=http://${
    
    eureka.instance.hostname}:${
    
    server.port}/eureka/
#是否开启自我保护模式
eureka.server.enable-self-preservation=false
#指定EvictionTask 定时任务的调度频率，用于剔除过期的实例
eureka.server.eviction-interval-timer-in-ms=2000

3.新建Eureka启动类,启动注册中心

package com.z_eureak;

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


@SpringBootApplication
@EnableEurekaServer
public class EureakApp {
    
    

	public static void main(String[] args) {
    
    
		SpringApplication.run(EureakApp.class, args);
	}
}

4.出现以下界面说明启动成功