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package com.poly.gateway.filter.auth;import com.fasterxml.jackson.databind.ObjectMapper;import com.poly.gateway.common.BusinessException;import lombok.extern.slf4j.Slf4j;import org.apache.commons.lang3.StringUtils;import org.springframework.cloud.gateway.filter.GatewayFilterChain;import org.springframework.cloud.gateway.filter.GlobalFilter;import org.springframework.core.Ordered;import org.springframework.core.io.buffer.DataBuffer;import org.springframework.http.MediaType;import org.springframework.http.server.reactive.ServerHttpResponse;import org.springframework.stereotype.Component;import org.springframework.web.server.ServerWebExchange;import reactor.core.publisher.Flux;import reactor.core.publisher.Mono;/** * 认证过滤器 *  * @author 向振华 * @date 2020/09/16 10:30 */@Slf4j@Componentpublic class AuthFilter implements GlobalFilter, Ordered {    @Override    public int getOrder() {        return 0;    }    @Override    public Mono
   
     filter(ServerWebExchange exchange, GatewayFilterChain chain) {        if (authenticate(exchange)) {            return chain.filter(exchange);        } else {            return errorInfo(exchange, "认证不通过", 1);        }    }    private boolean authenticate(ServerWebExchange exchange) {        // 进行认证逻辑，返回true表示认证通过        return true;    }    public static Mono
    
      errorInfo(ServerWebExchange exchange, String message, Integer status) {        Map
     
       resultMap = new HashMap<>();        resultMap.put("status", status == null ? 2 : status);        resultMap.put("message", StringUtils.isBlank(message) ? "服务异常！" : message);        resultMap.put("info", null);        resultMap.put("data", null);                return Mono.defer(() -> {            byte[] bytes;            try {                bytes = new ObjectMapper().writeValueAsBytes(resultMap);            } catch (JsonProcessingException e) {                log.error("网关响应异常：", e);                throw new BusinessException("信息序列化异常");            } catch (Exception e) {                log.error("网关响应异常：", e);                throw new BusinessException("写入响应异常");            }                        ServerHttpResponse response = exchange.getResponse();            response.getHeaders().add("Content-Type", MediaType.APPLICATION_JSON_UTF8.toString());            DataBuffer buffer = response.bufferFactory().wrap(bytes);            return response.writeWith(Flux.just(buffer));        });    }}
     
    
   

以上代码经过优化，主要做了以下修改：

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