nacos网关自定义过滤器

package com.liron.filter;

import com.liron.system.SystemConstants;
import com.liron.utils.AppJwtUtil;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.util.MultiValueMap;
import org.springframework.util.StringUtils;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

@Component
public class AuthorizeFilter implements GlobalFilter, Ordered {

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        // 要先获取到用户发送过来的请求头才行
        ServerHttpRequest request = exchange.getRequest();
        ServerHttpResponse response = exchange.getResponse();
        //+ 2.判断当前的请求 是否 是登录的请求 如果是 ，则放行
        String path = request.getURI().getPath();
        if(path.equals("/x/login")){
            return chain.filter(exchange);
        }
        MultiValueMap<String, String> params = request.getHeaders();
        // 然后拿到请求头里面的token
        String token = params.getFirst("token");
        if(StringUtils.isEmpty(token)){
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return  response.setComplete();//完成响应 返回 后面就不执行了
        }
        // 校验token
        Integer verifyToken = AppJwtUtil.verifyToken(token);
        if (!verifyToken.equals(SystemConstants.JWT_OK)){
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }
        // 放行
        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        // put the filter first
        return 0;
    }
}