1.Gateway过滤器种类

2.Gateway过滤器参数

3.自定义GlobalFilter过滤器

package com.example.filter;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

@Component
public class LoginGlobalFilter implements GlobalFilter, Ordered {

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        // 1.获取请求等数据
        // 2.过滤器的业务处理
        // 3.放行
        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        // 过滤器的执行顺序，值越小，优先级越高。要高于NettyRoutingFilter过滤器的优先级
        return 0 ;
    }

}