参考网址：
http://blog.csdn.net/lc0817/article/details/53266212
环境：JDK1.8
工具：Eclipse
1.新建Maven Project
pom.xml：
<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>springcloudtest</groupId> <artifactId>springcloudtest</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>pom</packaging> <modules> <module>discovery</module> <module>service0</module> <module>service1</module> <module>gateway</module> </modules> <!--以下dependency来自官方--> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.0.RELEASE</version> </parent> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Camden.SR2</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> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka-server</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-zuul</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-feign</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> </dependencies> </project>
2.新建Maven Module discovery
新建一个包：
cn.demo.discovery
在包里面新建一个Class：Discovery，代码如下：
package cn.demo.discovery;
import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication @EnableEurekaServer public class Discovery {
public static void main(String[] args) { // TODO Auto-generated method stub SpringApplication.run(Discovery.class, args);
}
}
在resources目录下新建一个配置文件application.yml（注意yml格式与properties文件不同）：
配置信息如下（注意排版）：
server: port: 8080 #注册中心占用8080端口,冒号后面必须要有空格 eureka: instance: hostname: localhost #冒号后面必须要有空格 client: registerWithEureka: false #冒号后面必须要有空格 fetchRegistry: false #冒号后面必须要有空格 serviceUrl: defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/ #其实就是 http://localhost:8080/eureka/,冒号后面必须要有空格
运行项目：
控制台输出信息：
浏览网页，http://localhost:8080/：
3.新建Maven Module service0
在springcloudtest项目中添加maven模块
新建一个Class：Service0，代码如下：
package service0;
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 Service0 { @GetMapping("/service0") public String service0(){ return "service0"; }
public static void main(String[] args) { // TODO Auto-generated method stub SpringApplication.run(Service0.class, args); }
}
在resources目录下新建一个配置文件application.yml（注意yml格式与properties文件不同）：
spring: application: name: service0 #冒号后面必须要有空格 eureka: client: serviceUrl: defaultZone: http://localhost:8080/eureka/ #冒号后面必须要有空格 # instance: # hostname: localhost #冒号后面必须要有空格 # instance-id: http://localhost:8081 #冒号后面必须要有空格 server: port: 8081 #冒号后面必须要有空格
先运行discovery项目，再运行本项目（同上）：
浏览服务器，http://localhost:8080/，可以看到service0：
4.新建Maven Module service1
操作方法同service0
Service1.java，代码如下:
package service1;
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 Service1 {
@GetMapping("/service1") public String service1(){ return "service1"; } public static void main(String[] args) { // TODO Auto-generated method stub SpringApplication.run(Service1.class, args); }
}
配置文件application.yml，配置信息如下:
spring: application: name: service1 #冒号后面必须要有空格 eureka: client: serviceUrl: defaultZone: http://localhost:8080/eureka/ #冒号后面必须要有空格 # instance: # hostname: localhost #冒号后面必须要有空格 # instance-id: http://localhost:8082 #冒号后面必须要有空格 server: port: 8082 #冒号后面必须要有空格
先运行discovery项目，再运行service0和service1（同上）。
浏览服务器，http://localhost:8080/，可以看到service0和service1：
4.新建Maven Module gateway（网关）
新建一个包cn.demo.gateway：
新建一个Class：Gatewa，代码如下：
package cn.demo.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 Gateway {
public static void main(String[] args) { // TODO Auto-generated method stub SpringApplication.run(Gateway.class, args); }
}
配置文件application.yml，配置信息如下:
eureka: client: serviceUrl: defaultZone: http://localhost:8080/eureka/ spring: application: name: gateway server: port: 8083 zuul: routes: service0: /service/0/** service1: /service/1/**
首先启动Discovery,其次的服务和网关启动顺序随意.通过访问http://localhost:8083/service0/service0/,即可看到,gateway帮我们转发了请求.
