Spring Cloud学习【第一篇:注册中心】

一、新建Maven项目
pom如下:

<?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.cloud</groupId>
    <artifactId>cloud-service</artifactId>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>register-center</module>
    </modules>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.4.RELEASE</version>
    </parent>

    <properties>
        <spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
        <mybatis.version>1.3.2</mybatis.version>
        <jwt.version>0.9.0</jwt.version>
        <fastjson.version>1.2.47</fastjson.version>
        <commons-collections>4.1</commons-collections>
        <monitor.version>2.0.2</monitor.version>
        <swagger.version>2.8.0</swagger.version>
        <aliyun-sdk-oss.version>2.8.2</aliyun-sdk-oss.version>
        <aliyun-sdk-core.version>3.2.8</aliyun-sdk-core.version>
        <aliyun-sdk-dysmsapi.version>1.1.0</aliyun-sdk-dysmsapi.version>
        <elasticsearch.version>6.2.3</elasticsearch.version>
        <security-oauth2.version>2.3.3.RELEASE</security-oauth2.version>
        <docker.image.prefix>springboot</docker.image.prefix>
    </properties>

    <dependencies>
        <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>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>${fastjson.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-collections4</artifactId>
            <version>${commons-collections}</version>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
            <dependency>
                <groupId>io.jsonwebtoken</groupId>
                <artifactId>jjwt</artifactId>
                <version>${jwt.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

</project>

二、新建spring boot子工程:register-center
pom如下:

<?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>
	<artifactId>register-center</artifactId>
	<packaging>jar</packaging>

	<parent>
		<groupId>com.cloud</groupId>
		<artifactId>cloud-service</artifactId>
		<version>1.0-SNAPSHOT</version>
	</parent>

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

	<build>
		<finalName>${project.artifactId}</finalName>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

</project>

三、配置register-center配置文件
bootstrap.properties:

######################################
##☆☆☆☆☆    注 册 中 心    ☆☆☆☆☆##
######################################

## 中心应用名
spring.application.name=register-center
## 服务注册中心的端口号
server.port=9099
## 服务注册中心的主机名
eureka.instance.hostname=localhost
## 是否向注册中心注册,本身为注册中心,所以否
eureka.client.register-with-eureka=true
## 是否检索其他的服务
eureka.client.fetch-registry=true
## 用于服务注册和服务检索的地址
eureka.client.service-url.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/
## 表示eureka client间隔多久去拉取服务注册信息
eureka.client.registry-fetch-interval-seconds=5
## 表示eureka server至上一次收到client的心跳之后,等待下一次心跳的超时时间,在这个时间内若没收到下一次心跳,则将移除该instance。
eureka.instance.lease-expiration-duration-in-seconds=15
## 表示eureka client发送心跳给server端的频率。如果在leaseExpirationDurationInSeconds后,server端没有收到client的心跳,则将摘除该instance。
## 除此之外,如果该instance实现了HealthCheckCallback,并决定让自己unavailable的话,则该instance也不会接收到流量。
eureka.instance.lease-renewal-interval-in-seconds=5
## 将IP注册到Eureka Server上,而如果不配置就是机器的主机名。
eureka.instance.prefer-ip-address=true
## Eureke上显示的实例名:register-center:9099
eureka.instance.instance-id=${spring.application.name}:${server.port}
## 关闭注册中心的保护机制,Eureka 会统计15分钟之内心跳失败的比例低于85%将会触发保护机制,不剔除服务提供者,如果关闭服务注册中心将不可用的实例正确剔除
eureka.server.enable-self-preservation=false
## eureka server清理无效节点的时间间隔,默认60000毫秒,即60秒
eureka.server.eviction-interval-timer-in-ms=3000
## 加载所有的端点/默认只加载了 info / health
management.endpoints.web.exposure.include="*"
## 配置是否查看详细的应用健康信息
management.endpoint.health.show-details=always
## 日志级别及目录配置
logging.level.root=info
logging.file=logs/${spring.application.name}.log

四、启动类增加注解

package com.cloud.registercenter;

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

@EnableEurekaServer
@SpringBootApplication
public class RegisterCenterApplication {

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

}

访问本地:localhost:9099/
在这里插入图片描述

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转载自blog.csdn.net/weixin_38422258/article/details/94738648