目錄前言一、Nacos環(huán)境準(zhǔn)備1、啟動(dòng)Nacos配置中心并創(chuàng)建路由配置2、連接Nacos配置中心二、項(xiàng)目構(gòu)建1、項(xiàng)目結(jié)構(gòu)2、編寫測(cè)試代碼三、測(cè)試動(dòng)態(tài)網(wǎng)關(guān)配置1、啟動(dòng)服務(wù)，觀察注冊(cè)中心2、訪問網(wǎng)關(guān)，觀察服務(wù)日志四、總結(jié)前言

Nacos最近項(xiàng)目一直在使用，其簡(jiǎn)單靈活，支持更細(xì)粒度的命令空間，分組等為麻煩復(fù)雜的環(huán)境切換提供了方便；同時(shí)也很好支持動(dòng)態(tài)路由的配置，只需要簡(jiǎn)單的幾步即可。在國(guó)產(chǎn)的注冊(cè)中心、配置中心中比較突出，容易上手，本文通過gateway、nacos-consumer、nacos-provider三個(gè)簡(jiǎn)單模塊來展示：Nacos下動(dòng)態(tài)路由配置。

　博文中源碼已上傳至github(https://github.com/Jian0110/learning-cloudalibaba)，歡迎小伙伴們star

一、Nacos環(huán)境準(zhǔn)備1、啟動(dòng)Nacos配置中心并創(chuàng)建路由配置

具體的Nacos怎么配置就不介紹了，可以參考阿里巴巴的官方介紹，這里通過windows直接本地啟動(dòng)開啟單機(jī)模式，登錄Nacos Console，創(chuàng)建dev的namespace，在dev下的默認(rèn)分組下創(chuàng)建gateway-router的dataId

gateway-router的主要初始化配置如下：關(guān)于gateway的組成（id，order、predicates斷言，uri）這里就不詳細(xì)說明的了，可以自行百度下

[{ 'id': 'consumer-router', 'order': 0, 'predicates': [{'args': { 'pattern': '/consume/**'},'name': 'Path' }], 'uri': 'lb://nacos-consumer'},{ 'id': 'provider-router', 'order': 2, 'predicates': [{'args': { 'pattern': '/provide/**'},'name': 'Path' }], 'uri': 'lb://nacos-provider'}]2、連接Nacos配置中心

通常在項(xiàng)目中配置“配置中心”往往都是在bootstrap.propertis(yaml)中配置，這樣才能保證項(xiàng)目中路由配置從Nacos Config中讀取。

# nacos配置中心配置建議在bootstrap.properties中配置spring.cloud.nacos.config.server-addr=127.0.0.1:8848#spring.cloud.nacos.config.file-extension=properties# 配置中心的命名空間：dev 的命名空間（環(huán)境）spring.cloud.nacos.config.namespace=08ecd1e5-c042-410a-84d5-b0a8fbeed8ea

Application啟動(dòng)類中增加注解@EnableDiscoveryClient，才能保證連接到Nacos Config

@SpringBootApplication@EnableDiscoveryClientpublic class GatewayApplication{ public static void main( String[] args ) {SpringApplication.run(GatewayApplication.class, args); }}二、項(xiàng)目構(gòu)建1、項(xiàng)目結(jié)構(gòu)

創(chuàng)建簡(jiǎn)單的springboot多模塊結(jié)構(gòu)，推薦使用idea創(chuàng)建

1）Nacos父模塊：

<groupId>com.springcloud</groupId><artifactId>nacos</artifactId><version>0.0.1-SNAPSHOT</version><name>nacos</name><description>Nacos Demo</description>

首先pom文件引入Spring Cloud Alibaba Nacos組件：注冊(cè)中心nacos-discovery與配置中心nacos-config

<!--nacos 客戶端 注冊(cè)中心--> <dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId><version>${alibaba-nacos.version}</version> </dependency> <!--nacos 客戶端 配置中心--> <dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId><version>${alibaba-nacos.version}</version> </dependency>

其次再引入Spring Cloud相關(guān)組件依賴

<dependencyManagement><dependencies> <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-dependencies</artifactId><version>${spring-boot.version}</version><type>pom</type><scope>import</scope> </dependency> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>${spring-cloud.version}</version><type>pom</type><scope>import</scope> </dependency></dependencies></dependencyManagement>

其它組件依賴引入（修正：如果引入了nacos-api相關(guān)的JSON依賴，那么fastjson就不需要再引入了，否則可能沖突）：

<dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>${fastjson.version}</version></dependency><dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>${lombok.version}</version> <scope>provided</scope></dependency><dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version></dependency><dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId></dependency>

注意，這里有個(gè)坑，spring cloud gateway使用的web框架為webflux，和springMVC不兼容。所以不要引入（修正：只有g(shù)ateway服務(wù)不用引入springMVC，其他需要引入）

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

2）三個(gè)子模塊：gateway、nacos-consumer、nacos-provider

<modules><module>nacos-provider</module><module>nacos-consumer</module><module>gateway</module></modules>

結(jié)構(gòu)截圖如下所示：

3）三個(gè)服務(wù)的端口分別為：

nacos-consume:6001

nacos-provider:6002

gateway：6003

4）服務(wù)架構(gòu)如下：

2、編寫測(cè)試代碼

（1）在gateway模塊中主要實(shí)現(xiàn)以下功能：

第一，從Nacos配置中心中加載動(dòng)態(tài)路由的相關(guān)配置，就需要讀取Nacos的命名空間namespace，通過dataId獲取配置

/** * 路由類配置 */@Configurationpublic class GatewayConfig { public static final long DEFAULT_TIMEOUT = 30000; public static String NACOS_SERVER_ADDR; public static String NACOS_NAMESPACE; public static String NACOS_ROUTE_DATA_ID; public static String NACOS_ROUTE_GROUP; @Value('${spring.cloud.nacos.discovery.server-addr}') public void setNacosServerAddr(String nacosServerAddr){NACOS_SERVER_ADDR = nacosServerAddr; } @Value('${spring.cloud.nacos.discovery.namespace}') public void setNacosNamespace(String nacosNamespace){NACOS_NAMESPACE = nacosNamespace; } @Value('${nacos.gateway.route.config.data-id}') public void setNacosRouteDataId(String nacosRouteDataId){NACOS_ROUTE_DATA_ID = nacosRouteDataId; } @Value('${nacos.gateway.route.config.group}') public void setNacosRouteGroup(String nacosRouteGroup){NACOS_ROUTE_GROUP = nacosRouteGroup; }}

properties配置關(guān)于Nacos下讀取gateway-router的配置：

spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848spring.cloud.nacos.discovery.namespace=08ecd1e5-c042-410a-84d5-b0a8fbeed8eanacos.gateway.route.config.data-id=gateway-routernacos.gateway.route.config.group=DEFAULT_GROUP

第二，初始化路由，監(jiān)聽動(dòng)態(tài)路由配置的數(shù)據(jù)源變化(2020.12.28解決刪除路由不生效問題)；

/** * * 通過nacos下發(fā)動(dòng)態(tài)路由配置,監(jiān)聽Nacos中g(shù)ateway-route配置 * */@Component@Slf4j@DependsOn({'gatewayConfig'}) // 依賴于gatewayConfig beanpublic class DynamicRouteServiceImplByNacos { @Autowired private DynamicRouteServiceImpl dynamicRouteService; private ConfigService configService; @PostConstruct public void init() {log.info('gateway route init...');try{ configService = initConfigService(); if(configService == null){log.warn('initConfigService fail');return; } String configInfo = configService.getConfig(GatewayConfig.NACOS_ROUTE_DATA_ID, GatewayConfig.NACOS_ROUTE_GROUP, GatewayConfig.DEFAULT_TIMEOUT); log.info('獲取網(wǎng)關(guān)當(dāng)前配置:rn{}',configInfo); List<RouteDefinition> definitionList = JSON.parseArray(configInfo, RouteDefinition.class); for(RouteDefinition definition : definitionList){log.info('update route : {}',definition.toString());dynamicRouteService.add(definition); }} catch (Exception e) { log.error('初始化網(wǎng)關(guān)路由時(shí)發(fā)生錯(cuò)誤',e);}dynamicRouteByNacosListener(GatewayConfig.NACOS_ROUTE_DATA_ID,GatewayConfig.NACOS_ROUTE_GROUP); } /** * 監(jiān)聽Nacos下發(fā)的動(dòng)態(tài)路由配置 * @param dataId * @param group */ public void dynamicRouteByNacosListener (String dataId, String group){try { configService.addListener(dataId, group, new Listener() {@Overridepublic void receiveConfigInfo(String configInfo) { log.info('進(jìn)行網(wǎng)關(guān)更新:nr{}',configInfo); List<RouteDefinition> definitionList = JSON.parseArray(configInfo, RouteDefinition.class); log.info('update route : {}',definitionList.toString()); dynamicRouteService.updateList(definitionList);}@Overridepublic Executor getExecutor() { log.info('getExecutornr'); return null;} });} catch (NacosException e) { log.error('從nacos接收動(dòng)態(tài)路由配置出錯(cuò)!!!',e);} } /** * 初始化網(wǎng)關(guān)路由 nacos config * @return */ private ConfigService initConfigService(){try{ Properties properties = new Properties(); properties.setProperty('serverAddr',GatewayConfig.NACOS_SERVER_ADDR); properties.setProperty('namespace',GatewayConfig.NACOS_NAMESPACE); return configService= NacosFactory.createConfigService(properties);} catch (Exception e) { log.error('初始化網(wǎng)關(guān)路由時(shí)發(fā)生錯(cuò)誤',e); return null;} }}

第三，刷新最新的動(dòng)態(tài)路由變化，實(shí)現(xiàn)動(dòng)態(tài)增刪改路由（2020.12.28解決刪除路由不生效問題）

/** * 動(dòng)態(tài)更新路由網(wǎng)關(guān)service * 1）實(shí)現(xiàn)一個(gè)Spring提供的事件推送接口ApplicationEventPublisherAware * 2）提供動(dòng)態(tài)路由的基礎(chǔ)方法，可通過獲取bean操作該類的方法。該類提供新增路由、更新路由、刪除路由，然后實(shí)現(xiàn)發(fā)布的功能。 */@Slf4j@Servicepublic class DynamicRouteServiceImpl implements ApplicationEventPublisherAware { @Autowired private RouteDefinitionWriter routeDefinitionWriter; @Autowired private RouteDefinitionLocator routeDefinitionLocator; /** * 發(fā)布事件 */ @Autowired private ApplicationEventPublisher publisher; @Override public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {this.publisher = applicationEventPublisher; } /** * 刪除路由 * @param id * @return */ public String delete(String id) {try { log.info('gateway delete route id {}',id); this.routeDefinitionWriter.delete(Mono.just(id)).subscribe(); this.publisher.publishEvent(new RefreshRoutesEvent(this)); return 'delete success';} catch (Exception e) { return 'delete fail';} } /** * 更新路由 * @param definitions * @return */ public String updateList(List<RouteDefinition> definitions) {log.info('gateway update route {}',definitions);// 刪除緩存routerDefinitionList<RouteDefinition> routeDefinitionsExits = routeDefinitionLocator.getRouteDefinitions().buffer().blockFirst();if (!CollectionUtils.isEmpty(routeDefinitionsExits)) { routeDefinitionsExits.forEach(routeDefinition -> {log.info('delete routeDefinition:{}', routeDefinition);delete(routeDefinition.getId()); });}definitions.forEach(definition -> { updateById(definition);});return 'success'; } /** * 更新路由 * @param definition * @return */ public String updateById(RouteDefinition definition) {try { log.info('gateway update route {}',definition); this.routeDefinitionWriter.delete(Mono.just(definition.getId()));} catch (Exception e) { return 'update fail,not find route routeId: '+definition.getId();}try { routeDefinitionWriter.save(Mono.just(definition)).subscribe(); this.publisher.publishEvent(new RefreshRoutesEvent(this)); return 'success';} catch (Exception e) { return 'update route fail';} } /** * 增加路由 * @param definition * @return */ public String add(RouteDefinition definition) {log.info('gateway add route {}',definition);routeDefinitionWriter.save(Mono.just(definition)).subscribe();this.publisher.publishEvent(new RefreshRoutesEvent(this));return 'success'; }}三、測(cè)試動(dòng)態(tài)網(wǎng)關(guān)配置1、啟動(dòng)服務(wù)，觀察注冊(cè)中心

分別啟動(dòng)gateway、nacos-consumer、nacos-provider三個(gè)服務(wù)，觀察是否已經(jīng)在Nacos上正確注冊(cè)

注意：需要指定注冊(cè)中心的namespace為dev的空間，即spring.cloud.nacos.discovery.namespace=08ecd1e5-c042-410a-84d5-b0a8fbeed8ea

2、訪問網(wǎng)關(guān)，觀察服務(wù)日志

（1）查看gateway服務(wù)的初始化啟動(dòng)日志：會(huì)發(fā)現(xiàn)可以正常從Nacos獲取配置gateway-router網(wǎng)關(guān)配置文件內(nèi)容，并進(jìn)行正確路由加載...

2020-05-10 14:33:44.557 INFO 1272 --- [ main] c.g.r.DynamicRouteServiceImplByNacos : gateway route init...2020-05-10 14:33:44.578 INFO 1272 --- [ main] c.g.r.DynamicRouteServiceImplByNacos : 獲取網(wǎng)關(guān)當(dāng)前配置:[{ 'id': 'consumer-router', 'order': 0, 'predicates': [{'args': { 'pattern': '/consume/**'},'name': 'Path' }], 'uri': 'lb://nacos-consumer'},{ 'id': 'provider-router', 'order': 2, 'predicates': [{'args': { 'pattern': '/provide/**'},'name': 'Path' }], 'uri': 'lb://nacos-provider'}]2020-05-10 14:33:44.691 INFO 1272 --- [ main] c.g.r.DynamicRouteServiceImplByNacos : update route : RouteDefinition{id=’consumer-router’, predicates=[PredicateDefinition{name=’Path’, args={pattern=/consume/**}}], filters=[], uri=lb://nacos-consumer, order=0, metadata={}}2020-05-10 14:33:44.691 INFO 1272 --- [ main] c.g.service.DynamicRouteServiceImpl : gateway add route RouteDefinition{id=’consumer-router’, predicates=[PredicateDefinition{name=’Path’, args={pattern=/consume/**}}], filters=[], uri=lb://nacos-consumer, order=0, metadata={}}2020-05-10 14:33:45.192 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [After]2020-05-10 14:33:45.192 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Before]2020-05-10 14:33:45.192 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Between]2020-05-10 14:33:45.193 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Cookie]2020-05-10 14:33:45.193 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Header]2020-05-10 14:33:45.193 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Host]2020-05-10 14:33:45.194 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Method]2020-05-10 14:33:45.194 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Path]2020-05-10 14:33:45.194 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Query]2020-05-10 14:33:45.194 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [ReadBodyPredicateFactory]2020-05-10 14:33:45.194 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [RemoteAddr]2020-05-10 14:33:45.194 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [Weight]2020-05-10 14:33:45.194 INFO 1272 --- [ main] o.s.c.g.r.RouteDefinitionRouteLocator : Loaded RoutePredicateFactory [CloudFoundryRouteService]2020-05-10 14:33:45.335 INFO 1272 --- [ main] c.g.r.DynamicRouteServiceImplByNacos : update route : RouteDefinition{id=’provider-router’, predicates=[PredicateDefinition{name=’Path’, args={pattern=/provide/**}}], filters=[], uri=lb://nacos-provider, order=2, metadata={}}2020-05-10 14:33:45.335 INFO 1272 --- [ main] c.g.service.DynamicRouteServiceImpl : gateway add route RouteDefinition{id=’provider-router’, predicates=[PredicateDefinition{name=’Path’, args={pattern=/provide/**}}], filters=[], uri=lb://nacos-provider, order=2, metadata={}}2020-05-10 14:33:45.336 INFO 1272 --- [ main] c.g.r.DynamicRouteServiceImplByNacos : update route : RouteDefinition{id=’github-router’, predicates=[PredicateDefinition{name=’Path’, args={pattern=/github}}], filters=[], uri=https://github.com, order=3, metadata={}}2020-05-10 14:33:45.336 INFO 1272 --- [ main] c.g.service.DynamicRouteServiceImpl : gateway add route RouteDefinition{id=’github-router’, predicates=[PredicateDefinition{name=’Path’, args={pattern=/github}}], filters=[], uri=https://github.com, order=3, metadata={}}

但這只能說明是初始化靜態(tài)路由，下面我們改變gateway-router網(wǎng)關(guān)配置內(nèi)容，追加github-router路由

[{ 'id': 'consumer-router', 'order': 0, 'predicates': [{'args': { 'pattern': '/consume/**'},'name': 'Path' }], 'uri': 'lb://nacos-consumer'},{ 'id': 'provider-router', 'order': 2, 'predicates': [{'args': { 'pattern': '/provide/**'},'name': 'Path' }], 'uri': 'lb://nacos-provider'},{ 'id': 'github-router', 'order': 2, 'predicates': [{'args': { 'pattern': '/github/**'},'name': 'Path' }], 'uri': 'https://github.com'}]

之后點(diǎn)擊發(fā)布更新路由配置

觀察gateway服務(wù)日志，有沒有監(jiān)聽，并且進(jìn)行正確的路由更新：如下日志所示，最新路由配置立馬被打印，并且進(jìn)行正確路由更新

2020-05-10 14:42:27.576 INFO 1272 --- [d5-b0a8fbeed8ea] c.g.r.DynamicRouteServiceImplByNacos : 進(jìn)行網(wǎng)關(guān)更新:[{ 'id': 'consumer-router', 'order': 0, 'predicates': [{'args': { 'pattern': '/consume/**'},'name': 'Path' }], 'uri': 'lb://nacos-consumer'},{ 'id': 'provider-router', 'order': 2, 'predicates': [{'args': { 'pattern': '/provide/**'},'name': 'Path' }], 'uri': 'lb://nacos-provider'},{ 'id': 'github-router', 'order': 2, 'predicates': [{'args': { 'pattern': '/github/**'},'name': 'Path' }], 'uri': 'https://github.com'}]2020-05-10 14:42:27.576 INFO 1272 --- [d5-b0a8fbeed8ea] c.g.r.DynamicRouteServiceImplByNacos : update route : RouteDefinition{id=’consumer-router’, predicates=[PredicateDefinition{name=’Path’, args={pattern=/consume/**}}], filters=[], uri=lb://nacos-consumer, order=0, metadata={}}2020-05-10 14:42:27.576 INFO 1272 --- [d5-b0a8fbeed8ea] c.g.service.DynamicRouteServiceImpl : gateway update route RouteDefinition{id=’consumer-router’, predicates=[PredicateDefinition{name=’Path’, args={pattern=/consume/**}}], filters=[], uri=lb://nacos-consumer, order=0, metadata={}}2020-05-10 14:42:27.578 INFO 1272 --- [d5-b0a8fbeed8ea] c.g.r.DynamicRouteServiceImplByNacos : update route : RouteDefinition{id=’provider-router’, predicates=[PredicateDefinition{name=’Path’, args={pattern=/provide/**}}], filters=[], uri=lb://nacos-provider, order=2, metadata={}}2020-05-10 14:42:27.578 INFO 1272 --- [d5-b0a8fbeed8ea] c.g.service.DynamicRouteServiceImpl : gateway update route RouteDefinition{id=’provider-router’, predicates=[PredicateDefinition{name=’Path’, args={pattern=/provide/**}}], filters=[], uri=lb://nacos-provider, order=2, metadata={}}2020-05-10 14:42:27.580 INFO 1272 --- [d5-b0a8fbeed8ea] c.g.r.DynamicRouteServiceImplByNacos : update route : RouteDefinition{id=’github-router’, predicates=[PredicateDefinition{name=’Path’, args={pattern=/github/**}}], filters=[], uri=https://github.com, order=2, metadata={}}2020-05-10 14:42:27.580 INFO 1272 --- [d5-b0a8fbeed8ea] c.g.service.DynamicRouteServiceImpl : gateway update route RouteDefinition{id=’github-router’, predicates=[PredicateDefinition{name=’Path’, args={pattern=/github/**}}], filters=[], uri=https://github.com, order=2, metadata={}}

其實(shí)，還有辦法可以知道我們的gateway服務(wù)有沒有監(jiān)聽Nacos的gateway-router配置，那就是在Nacos Console--->監(jiān)聽查詢----->選擇配置---->輸入配置文件的namespace與Group：可以發(fā)現(xiàn)我本地IP地址127.0.0.1對(duì)配置文件gateway-router進(jìn)行了監(jiān)聽

（2）訪問gateway網(wǎng)關(guān)服務(wù)：http://localhost:6003/consume/sayHello/nacos

查看consumer服務(wù)日志：

2020-05-10 14:55:07.257 INFO 6552 --- [nio-6001-exec-2] c.n.c.controller.ConsumeController : I’m calling nacos-consumer service by dynamic gateway...

發(fā)現(xiàn)跳轉(zhuǎn)至consumer服務(wù)，并且訪問了consumer服務(wù)的CosnumerController

（3）訪問gateway網(wǎng)關(guān)服務(wù)：http://localhost:6003/provider/sayHello/nacos

查看provider服務(wù)日志：

2020-05-10 14:56:56.144 INFO 10024 --- [nio-6002-exec-1] c.n.p.controller.ProviderController : I’m calling nacos-provider service by dynamic gateway...

發(fā)現(xiàn)跳轉(zhuǎn)至consumer服務(wù)，并且訪問了provider服務(wù)的ProviderController

（4）訪問訪問gateway網(wǎng)關(guān)服務(wù)：http://localhost:6003/github，正確跳轉(zhuǎn)至github頁面

四、總結(jié)

1）Spring Cloud Gateway作用不光只是簡(jiǎn)單的跳轉(zhuǎn)重定向，還可以實(shí)現(xiàn)用戶的驗(yàn)證登錄，解決跨域，日志攔截，權(quán)限控制，限流，熔斷，負(fù)載均衡，黑名單和白名單機(jī)制等。是微服務(wù)架構(gòu)不二的選擇；

2）Nacos的配置中心支持動(dòng)態(tài)獲取配置文件，可以將一些全局的經(jīng)常變更的配置文件放在Nacos下，需要到微服務(wù)自行獲取。

2020.12.28解決刪除路由不生效問題，主要是利用RouteDefinitionLocator先讀取變化之前的RouteDefinition，之后刪除重新再更新，或者可以實(shí)現(xiàn)routeDefinitionWriter、RouteDefinitionLocator重寫如下方法：

Mono<Void> save(Mono<RouteDefinition> route);Mono<Void> delete(Mono<String> routeId);Flux<RouteDefinition> getRouteDefinitions();

到此這篇關(guān)于Nacos+Spring Cloud Gateway動(dòng)態(tài)路由配置實(shí)現(xiàn)步驟的文章就介紹到這了,更多相關(guān)Spring Cloud Gateway動(dòng)態(tài)路由內(nèi)容請(qǐng)搜索好吧啦網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持好吧啦網(wǎng)！