springCloud是基于springboot搭建的微服务。它利用Spring Boot的开发便利性巧妙地简化了分布式系统基础设施的开发，如服务发现注册、配置中心、消息总线、负载均衡、断路器、数据监控等，都可以用Spring Boot的开发风格做到一键启动和部署。
spring cloud官方文档：http://projects.spring.io/spring-cloud/
spring cloud 中文网 : https://springcloud.cc/
最终搭建后的工程源代码：https://github.com/onpwerb/SpringCloud
一、新建maven工程
根据spring cloud官方文档，在pom.xml导入如下代码
<!-- spring cloud 配置 --> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.5.RELEASE</version> </parent> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Camden.SR6</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-config</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka</artifactId> </dependency>
二、建立注册中心
新建名称为 discovery 的 module
1.在该module下的pom.xml导入如下配置：
<!-- @EnableEurekaServer --> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-netflix-eureka-server</artifactId> <!--<version>1.1.6.RELEASE</version>--> </dependency> </dependencies>
2.在src/main/java目录下新建discovery文件夹，然后新建一个application
package discovery;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;@SpringBootApplication@EnableEurekaServerpublic class DiscoveryApplicaion { public static void main(String[] args) { SpringApplication.run(DiscoveryApplicaion.class, args); }}3.在该module下的src/main/resources文件夹下，新建文件application.yml，配置注册中心eureka的相关服务
server: port: 8081eureka: instance: hostname: localhost client: registerWithEureka: false fetchRegistry: false serviceUrl: defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/三、构建一个服务A
新建一个名为service的module
1.在src/main/java目录下新建service文件夹，然后新建一个application
package service;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.client.discovery.EnableDiscoveryClient;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RestController;@SpringBootApplication@EnableDiscoveryClient@RestControllerpublic class ServiceApplication { @GetMapping("/service") public String service(){ return "service"; } public static void main(String[] args) { SpringApplication.run(ServiceApplication.class, args); }}2.在该module下的src/main/resources文件夹下，新建文件application.yml
spring: application: name: service.serviceeureka: client: serviceUrl: defaultZone: http://localhost:8081/eureka/server: port: 8082
四、构建第二个服务B
新建一个名为service2的module
1.在src/main/java目录下新建service2文件夹，然后新建一个application
package service2;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.client.discovery.EnableDiscoveryClient;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;@SpringBootApplication@EnableDiscoveryClient@RestControllerpublic class Service2Application { @RequestMapping("/service2") public String service2(){ return "service2"; } public static void main(String[] args) { SpringApplication.run(Service2Application.class, args); }}2.在该module下的src/main/resources文件夹下，新建文件application.yml
spring: application: name: service2eureka: client: serviceUrl: defaultZone: http://localhost:8081/eureka/server: port: 8083
五、配置网关
新建名称为 gateway 的 module
1.在该module下的pom.xml导入如下配置：
package gateway;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.netflix.eureka.EnableEurekaClient;import org.springframework.cloud.netflix.zuul.EnableZuulProxy;@SpringBootApplication@EnableZuulProxy@EnableEurekaClientpublic class GatewayApplication { public static void main(String[] args) { SpringApplication.run(GatewayApplication.class, args); }}2.在src/main/java目录下新建gateway文件夹，然后新建一个application
eureka: client: serviceUrl: defaultZone: http://localhost:8081/eureka/spring: application: name: gatewayserver: port: 8084zuul: routes: service: /service/** service2: /service2/**
3.在该module下的src/main/resources文件夹下，新建文件application.yml
六、启动服务
先启动discovery模块，再启动其他模块
在浏览器依次输入：
http://localhost:8081/
http://localhost:8082/service
http://localhost:8083/service2
http://localhost:8084/service/service
http://localhost:8084/service2/service2
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持VeVb武林网。
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