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
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<!-- 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>
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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：
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<!-- @EnableEurekaServer -->
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-netflix-eureka-server</artifactId>
<!--<version>1.1.6.RELEASE</version>-->
</dependency>
</dependencies>
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2.在src/main/java目录下新建discovery文件夹，然后新建一个application
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package discovery;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class DiscoveryApplicaion {
public static void main(String[] args) {
SpringApplication.run(DiscoveryApplicaion.class, args);
}
}
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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
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server:
port: 8081
eureka:
instance:
hostname: localhost
client:
registerWithEureka: false
fetchRegistry: false
serviceUrl:
defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
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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
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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
@RestController
public class ServiceApplication {
@GetMapping("/service")
public String service(){
return "service";
}
public static void main(String[] args) {
SpringApplication.run(ServiceApplication.class, args);
}
}
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2.在该module下的src/main/resources文件夹下，新建文件application.yml
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spring:
application:
name: service.service
eureka:
client:
serviceUrl:
defaultZone: http://localhost:8081/eureka/
server:
port: 8082
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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
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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
@RestController
public class Service2Application {
@RequestMapping("/service2")
public String service2(){
return "service2";
}
public static void main(String[] args) {
SpringApplication.run(Service2Application.class, args);
}
}
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2.在该module下的src/main/resources文件夹下，新建文件application.yml
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spring:
application:
name: service2
eureka:
client:
serviceUrl:
defaultZone: http://localhost:8081/eureka/
server:
port: 8083
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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：
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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
@EnableEurekaClient
public class GatewayApplication {
public static void main(String[] args) {
SpringApplication.run(GatewayApplication.class, args);
}
}
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2.在src/main/java目录下新建gateway文件夹，然后新建一个application
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eureka:
client:
serviceUrl:
defaultZone: http://localhost:8081/eureka/
spring:
application:
name: gateway
server:
port: 8084
zuul:
routes:
service: /service/**
service2: /service2/**
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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服务器之家。
原文链接：http://blog.csdn.net/onpwerb/article/details/70196118