springCloud是基于springboot搭建的微服務。它利用Spring Boot的開發便利性巧妙地簡化了分布式系統基礎設施的開發，如服務發現注冊、配置中心、消息總線、負載均衡、斷路器、數據監控等，都可以用Spring Boot的開發風格做到一鍵啟動和部署。
spring cloud官方文檔：http://projects.spring.io/spring-cloud/
spring cloud 中文網 : https://springcloud.cc/
最終搭建后的工程源代碼：https://github.com/onpwerb/SpringCloud
一、新建maven工程
根據spring cloud官方文檔，在pom.xml導入如下代碼
<!-- 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、建立注冊中心
新建名稱為 discovery 的 module
1.在該module下的pom.xml導入如下配置：
<!-- @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目錄下新建discovery文件夾，然后新建一個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.在該module下的src/main/resources文件夾下，新建文件application.yml，配置注冊中心eureka的相關服務
server: port: 8081eureka: instance: hostname: localhost client: registerWithEureka: false fetchRegistry: false serviceUrl: defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/三、構建一個服務A
新建一個名為service的module
1.在src/main/java目錄下新建service文件夾，然后新建一個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.在該module下的src/main/resources文件夾下，新建文件application.yml
spring: application: name: service.serviceeureka: client: serviceUrl: defaultZone: http://localhost:8081/eureka/server: port: 8082
四、構建第二個服務B
新建一個名為service2的module
1.在src/main/java目錄下新建service2文件夾，然后新建一個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.在該module下的src/main/resources文件夾下，新建文件application.yml
spring: application: name: service2eureka: client: serviceUrl: defaultZone: http://localhost:8081/eureka/server: port: 8083
五、配置網關
新建名稱為 gateway 的 module
1.在該module下的pom.xml導入如下配置：
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目錄下新建gateway文件夾，然后新建一個application
eureka: client: serviceUrl: defaultZone: http://localhost:8081/eureka/spring: application: name: gatewayserver: port: 8084zuul: routes: service: /service/** service2: /service2/**
3.在該module下的src/main/resources文件夾下，新建文件application.yml
六、啟動服務
先啟動discovery模塊，再啟動其他模塊
在瀏覽器依次輸入：
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內容，希望對大家的學習有所幫助，也希望大家多多支持VeVb武林網。
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