SpringCloud路由（网关）

springcloud网关接口就类似于转发

搭建路由网关项目（ZuulDemo）

1、创建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>com.cppdy</groupId>
    <artifactId>ZuulDemo</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
        <relativePath />
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zuul</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Dalston.RC1</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

    <repositories>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

</project>

2、创建application.yml配置文件

eureka:
  client:
    service-url:
      defaultZone: http://127.0.0.1:9000/eureka/
server:
  port: 9005
spring:
  application:
    name: cppdy-zuul
zuul:
  routes:
    api-a:
      path: /api-a/**
      service-id: cppdy-ribbon
    api-b:
      path: /api-b/**
      service-id: cppdy-feign

3、创建启动类（ZuulApp）

package com.cppdy;

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
@EnableEurekaClient
@EnableZuulProxy
public class ZuulApp {

    public static void main(String[] args) {
        SpringApplication.run(ZuulApp.class, args);
    }

}

4、先启动EurekaDemo（注册中心项目），再启动ProduceDemo（服务提供者项目）端口号设置为9001，再启动RibbonDemo（消费者项目）端口号设置为9003，再启动FeignDemo（消费者项目）端口号设置为9004，再启动ZuulDemo（路由网关项目）

　　访问http://localhost:9005/api-a/hello时，会转发调用http://localhost:9003/hello（RibbonDemo项目）

　　访问http://localhost:9005/api-b/hello时，会转发调用http://localhost:9004/hello（FeignDemo项目）