Spring Cloud Gateway动态加载路由和路由Filter配置

import org.springframework.cloud.gateway.filter.FilterDefinition;
import org.springframework.cloud.gateway.handler.predicate.PredicateDefinition;
import org.springframework.cloud.gateway.route.RouteDefinition;
import reactor.core.publisher.Mono;
 
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
 
public class DynamicRouteService {
 
    private final RouteDefinitionWriter routeDefinitionWriter;
 
    public DynamicRouteService(RouteDefinitionWriter routeDefinitionWriter) {
        this.routeDefinitionWriter = routeDefinitionWriter;
    }
 
    public Mono<Void> addNewRoute(String id, String uri, List<PredicateDefinition> predicates, List<FilterDefinition> filters) {
        RouteDefinition routeDefinition = new RouteDefinition();
        routeDefinition.setId(id);
        routeDefinition.setUri(Uri.of(uri));
        routeDefinition.setPredicates(predicates);
        routeDefinition.setFilters(filters);
 
        return routeDefinitionWriter.save(Mono.just(routeDefinition), null);
    }
 
    public Mono<Void> deleteRoute(String id) {
        return routeDefinitionWriter.delete(Mono.just(id));
    }
 
    public List<RouteDefinition> getAllRoutes() {
        // 假设getAllRouteDefinitions是RouteDefinitionWriter提供的方法
        return routeDefinitionWriter.getAllRouteDefinitions().collectList().block();
    }
 
    public RouteDefinition getRoute(String id) {
        // 假设getRouteDefinitions是RouteDefinitionWriter提供的方法
        return routeDefinitionWriter.getRouteDefinitions().filter(route -> route.getId().equals(id)).blockFirst();
    }
 
    public Mono<Void> updateRoute(RouteDefinition routeDefinition) {
        return routeDefinitionWriter.save(Mono.just(routeDefinition), null);
    }
}

这个代码示例提供了一个简化版的DynamicRouteService类，用于Spring Cloud Gateway的动态路由配置。它展示了如何添加、删除、获取所有路由定义，以及更新一个路由定义。注意，这里的方法假设在RouteDefinitionWriter接口中已经定义了相应的方法。在实际使用时，你需要结合Spring Cloud Gateway的实际API实现来完善这些方法。