一、Spring Cloud 2.x版本Gateway动态路由介绍
Spring Cloud 2.x版本Gateway是一个基于Spring Cloud的网关,它可以轻松实现动态路由,它支持多种协议,包括HTTP,HTTPs,Websocket,TCP,UDP等。它可以通过提供的API来动态添加、删除和修改路由,从而更好地满足业务需求。
二、Spring Cloud 2.x版本Gateway动态路由配置
1、首先在pom.xml文件中添加以下依赖:
<dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-gateway</artifactId></dependency>
2、然后在application.yml文件中添加以下配置:
spring:cloud:gateway:routes:- id: route1uri: http://example.compredicates:- Path=/foo/**filters:- StripPrefix=1
3、最后在启动类中添加@EnableDiscoveryClient注解,以便启用服务发现:
@SpringBootApplication@EnableDiscoveryClientpublic class GatewayApplication {public static void main(String[] args) {SpringApplication.run(GatewayApplication.class, args);}}
三、Spring Cloud 2.x版本Gateway动态路由使用
1、首先使用Spring Cloud Gateway提供的API,可以动态添加、删除和修改路由,从而更好地满足业务需求:
@Autowiredprivate RouteDefinitionWriter routeDefinitionWriter;public void addRoute(RouteDefinition definition) {routeDefinitionWriter.save(Mono.just(definition)).subscribe();}public void updateRoute(RouteDefinition definition) {deleteRoute(definition.getId());addRoute(definition);}public void deleteRoute(String id) {routeDefinitionWriter.delete(Mono.just(id)).subscribe();}
2、然后可以使用Spring Cloud Gateway提供的API,动态添加或删除路由:
RouteDefinition definition = new RouteDefinition();definition.setId("route1");definition.setUri(URI.create("http://example.com"));definition.setPredicates(Arrays.asList(new PathPredicate("/foo/**")));definition.setFilters(Arrays.asList(new StripPrefixGatewayFilterFactory(1)));addRoute(definition);
3、最后可以使用Spring Cloud Gateway提供的API,动态更新路由:
RouteDefinition definition = new RouteDefinition();definition.setId("route1");definition.setUri(URI.create("http://example.com"));definition.setPredicates(Arrays.asList(new PathPredicate("/bar/**")));definition.setFilters(Arrays.asList(new StripPrefixGatewayFilterFactory(2)));updateRoute(definition);