一、什么是网关
Zuul的主要功能是路由转发和过滤器。路由功能是微服务的一部分，比如／api/user转发到到user服务，/api/shop转发到到shop服务。zuul默认和Ribbon结合实现了负载均衡的功能， 类似于nginx转发。
二、搭建SpringCloud网关
2.1 创建工程service-zuul 目录展示
2.2 导入依赖
<!--eureka依赖-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-zuul</artifactId>
</dependency> <dependencyManagement>
<dependencies>
<!--springCloud依赖-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Greenwich.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency> </dependencies>
</dependencyManagement>
2.3 application.yml配置文件
2.4 StartSpringCloudZuul启动类
package com.zn; 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; @EnableEurekaClient
@SpringBootApplication
@EnableZuulProxy
public class StartSpringCloudZuul {
public static void main(String[] args) {
SpringApplication.run(StartSpringCloudZuul.class,args);
}
}
2.5 效果展示