SpringCloud Gateway动态路由配置详解
更新时间:2023年03月17日 16:09:54 作者:苦瓜不苦077
这篇文章主要为大家介绍了SpringCloud Gateway动态路由配置详解,有需要的朋友可以借鉴参考下,希望能够有所帮助,祝大家多多进步,早日升职加薪
路由
gateway最主要的作用是,提供统一的入口,路由,鉴权,限流,熔断;这里的路由就是请求的转发,根据设定好的某些条件,比如断言,进行转发。
动态
动态的目的是让程序更加可以在运行的过程中兼容更多的业务场景。
涉及到两个服务,一个是门户服务(作用是提供给运营人员管理入口--包括:管理路由、绑定路由),一个是网关服务(gateway组件,为门户服务提供:查询路由信息、添加路由、删除路由、编辑路由接口)。
路由模型实体类
/** * 路由模型 * * @author 苦瓜不苦 * @date 2022/11/13 23:23 **/ @Data public class RouteDefinitionObject { /** * 路由的Id */ private String id; /** * 路由断言集合配置 */ private List<PredicateDefinition> predicates; /** * 路由过滤器集合配置 */ private List<FilterDefinition> filters; /** * 路由规则转发的目标uri */ private String uri; /** * 路由执行的顺序 */ private Integer order = 0; @Data public static class PredicateDefinition { /** * 断言对应的Name */ private String name; /** * 配置的断言规则 */ private Map<String, String> args; } @Data public static class FilterDefinition { /** * 断言对应的Name */ private String name; /** * 配置的断言规则 */ private Map<String, String> args; } }
动态路径配置
/** * 动态路由配置 * * @author 苦瓜不苦 * @date 2022/11/13 23:26 **/ @Slf4j @RestController @RequestMapping("/route") public class GatewayRouteConfig implements ApplicationEventPublisherAware { public final Map<String, RouteDefinitionObject> MAP = new ConcurrentHashMap<>(); private final RouteDefinitionWriter routeDefinitionWriter; private ApplicationEventPublisher applicationEventPublisher; public GatewayRouteConfig(RouteDefinitionWriter routeDefinitionWriter) { this.routeDefinitionWriter = routeDefinitionWriter; } @Override public void setApplicationEventPublisher(@NonNull ApplicationEventPublisher applicationEventPublisher) { this.applicationEventPublisher = applicationEventPublisher; } /** * 新增路由 * {"filters":[{"name":"StripPrefix","args":{"_genkey_0":"2"}}],"id":"item-system","uri":"lb://item-system","order":0,"predicates":[{"name":"Path","args":{"_genkey_0":"/api/system/**"}}]} */ @PostMapping("/save") public R<String> save(@RequestBody RouteDefinitionObject routeDefinitionObject) { try { // 路由模型转换成路由对象 RouteDefinition definition = BeanUtil.toBean(routeDefinitionObject, RouteDefinition.class); URI uri = routeDefinitionObject.getUri().startsWith("http") ? UriComponentsBuilder.fromHttpUrl(routeDefinitionObject.getUri()).build().toUri() : URI.create(routeDefinitionObject.getUri()); definition.setUri(uri); // 新增 routeDefinitionWriter.save(Mono.just(definition)).subscribe(); applicationEventPublisher.publishEvent(new RefreshRoutesEvent(this)); MAP.put(routeDefinitionObject.getId(), routeDefinitionObject); return R.success(); } catch (Exception e) { log.error("\n", e); } return R.failed(); } /** * 删除路由 */ @GetMapping("/delete") public R<Mono<ResponseEntity<Object>>> delete(@RequestParam("id") String id) { try { Mono<ResponseEntity<Object>> responseEntityMono = routeDefinitionWriter.delete(Mono.just(id)) .then(Mono.defer(() -> Mono.just(ResponseEntity.ok().build()) )).onErrorResume((t) -> t instanceof NotFoundException , (t) -> Mono.just(ResponseEntity.notFound().build()) ); MAP.remove(id); return R.success(responseEntityMono); } catch (Exception e) { log.error("\n", e); } return R.failed(); } /** * 更新路由 * {"filters":[{"name":"StripPrefix","args":{"_genkey_0":"2"}}],"id":"item-system","uri":"lb://item-system","order":0,"predicates":[{"name":"Path","args":{"_genkey_0":"/api/system/**"}}]} */ @PostMapping("/update") public R<String> update(@RequestBody RouteDefinitionObject routeDefinitionObject) { try { // 删除 delete(routeDefinitionObject.getId()); // 新增 save(routeDefinitionObject); return R.success(); } catch (Exception e) { log.error("\n", e); } return R.failed(); } /** * 查询路由 */ @GetMapping("/list") public R<Collection<RouteDefinitionObject>> list() { return R.success(MAP.values()); } }
路由模型JSON数据
{ "filters":[ { "name":"StripPrefix", "args":{ "_genkey_0":"2" } } ], "id":"item-system", "uri":"lb://item-system", "order":0, "predicates":[ { "name":"Path", "args":{ "_genkey_0":"/api/system/**" } } ] }
以上就是SpringCloud Gateway动态路由配置详解的详细内容,更多关于SpringCloud Gateway动态路由的资料请关注脚本之家其它相关文章!
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