Spring-Could自定义路由

package org.wh.predicate;

import io.netty.util.internal.StringUtil;
import jakarta.validation.constraints.NotEmpty;
import jakarta.validation.constraints.NotNull;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.gateway.handler.predicate.AbstractRoutePredicateFactory;
import org.springframework.cloud.gateway.handler.predicate.GatewayPredicate;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.server.ServerWebExchange;

import java.util.Arrays;
import java.util.List;
import java.util.function.Predicate;

@Component
public class VipRoutePredicateFactory extends AbstractRoutePredicateFactory<VipRoutePredicateFactory.Config>{
    public VipRoutePredicateFactory() {
        super(Config.class);
    }
    @Override
    public List<String> shortcutFieldOrder(){return Arrays.asList("param", "regexp");}

    @Override
    public Predicate<ServerWebExchange> apply(Config config) {
        return new GatewayPredicate() {

            @Override
            public boolean test(ServerWebExchange serverWebExchange) {
                ServerHttpRequest request = serverWebExchange.getRequest();
                String first = request.getQueryParams().getFirst(config.getParam());
                return StringUtils.hasText(first) && first.matches(config.getRegexp());
            }
        };
    }

    public static class Config {
        @NotEmpty
        private String param;
        @NotEmpty
        private String regexp;

        public String getParam() {
            return param;
        }

        public void setParam(String param) {
            this.param = param;
        }

        public String getRegexp() {
            return regexp;
        }

        public void setRegexp(String regexp) {
            this.regexp = regexp;
        }
    }
}

配置项需要和方法名前缀一致