spring-cloud之zuul学习笔记

1. 添加依赖

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

2. 添加注解@EnableZuulProxy

   @EnableZuulProxy
   @EnableDiscoveryClient
   @SpringBootApplication
   public class SpringCloudZuulApplication {
         
         
       public static void main(String[] args) {
         
         
           SpringApplication.run(SpringCloudZuulApplication.class, args);
       }
   }
   

3. 添加配置

   ##端口号
   server.port=8080
   ##服务名称
   spring.application.name=service-zuul
   # 路由配置
   zuul.routes.service-a.path=/client-a/**
   zuul.routes.service-a.service-id=CLIENT-A
   ##zuul路由转发 service-b转发到service
   zuul.routes.service-b.path=/service-b/**
   zuul.routes.service-b.url=http://www.baidu.com
   ##注册中心地址
   eureka.client.service-url.defaultZone=http://127.0.0.1:8686/eureka
   eureka.client.register-with-eureka=true
   eureka.client.fetch-registry=true
   ##zuul路由转发 service-a转发到service_ribbon
   

4. 自定义filter

   @Slf4j
   @Component
   public class HelloFilter extends ZuulFilter {
         
         
       @Override
       public String filterType() {
         
         
           return "pre";
       }
       @Override
       public int filterOrder() {
         
         
           return 0;
       }
       @Override
       public boolean shouldFilter() {
         
         
           return true;
       }
       @Override
       public Object run() {
         
         
           RequestContext context = RequestContext.getCurrentContext() ;
           HttpServletRequest request = context.getRequest();
           HttpServletResponse response = context.getResponse();
           log.info("===> HelloFilter.run()");
           return null;
       }
   }