电子商务平台源码请加企鹅求求:三五三六二四七二五九。一、 准备工作
继续使用上一篇文章的工程,创建一个eureka-server工程,用作服务注册中心。Spring Cloud大型企业分布式微服务云架构源码请加一七九一七四三三八零
在其pom.xml文件引入Eureka的起步依赖spring-cloud-starter-netflix- eureka-server,代码如下:
<?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.forezp</groupId>
<artifactId>config-server</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>config-server</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>com.forezp</groupId>
<artifactId>sc-f-chapter7</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
在配置文件application.yml上,指定服务端口为8889,加上作为服务注册中心的基本配置,代码如下:
server: port: 8889
eureka: instance:
hostname: localhost client:
registerWithEureka: false
fetchRegistry: false
serviceUrl: defaultZone:
http://${eureka.instance.hostname}:
${server.port}/
eureka/
入口类:
@EnableEurekaServer
@SpringBootApplication
public class EurekaServerApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaServerApplication.class, args);
}}
二、改造config-server
在其pom.xml文件加上EurekaClient的起步依赖spring-cloud-starter-netflix-eureka-client,代码如下:
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
</dependencies>
配置文件application.yml,指定服务注册地址为http: //local host: 8889/ eureka/,其他配置同上一篇文章,完整的配置如下:
spring.application.name=config-serverserver.port=8888 spring.cloud.config.server.git.uri=https://github.com/forezp/SpringcloudConfig/spring.cloud.config.server.git.searchPaths=respospring.cloud.config.label=masterspring.cloud.config.server.git.username= your usernamespring.cloud.config.server.git.password= your passwordeureka.client.serviceUrl.defaultZone=http://localhost:8889/eureka/
最后需要在程序的启动类Application加上@EnableEureka的注解。
三、改造config-client
将其注册微到服务注册中心,作为Eureka客户端,需要pom文件加上起步依赖spring-cloud-starter-netflix-eureka-client,代码如下:
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
</dependencies>
配置文件bootstrap.properties,注意是bootstrap。加上服务注册地址为http: // localhost:8889/eureka/
spring.application.name=config-clientspring.cloud.config.label=masterspring.cloud.config.profile=dev#spring.cloud.config.uri= http://localhost:8888/ eureka.client.serviceUrl.defaultZone=http://localhost:8889/eureka/spring.cloud.config.discovery.enabled=truespring.cloud.config.discovery.serviceId=config-serverserver.port=8881
spring.cloud.config.discovery.enabled 是从配置中心读取文件。
spring.cloud.config.discovery.serviceId 配置中心的servieId,即服务名。
这时发现,在读取配置文件不再写ip地址,而是服务名,这时如果配置服务部署多份,通过负载均衡,从而高可用。
依次启动eureka-servr,config-server,config-client 访问网址:http: // localhost:8889/查看返回的结果说明高可用的效果达到了。
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