content: package com.jiron.gateway.handler;
  
  import org.springframework.cloud.gateway.support.NotFoundException;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.boot.web.reactive.error.ErrorWebExceptionHandler;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.core.annotation.Order;
  import org.springframework.http.server.reactive.ServerHttpResponse;
  import org.springframework.web.server.ResponseStatusException;
  import org.springframework.web.server.ServerWebExchange;
  import com.jiron.common.core.utils.ServletUtils;
  import reactor.core.publisher.Mono;
  
  /**
   * 网关统一异常处理
   *
   * @author ruoyi
   */
  @Order(-1)
  @Configuration
  public class GatewayExceptionHandler implements ErrorWebExceptionHandler
  {
      private static final Logger log = LoggerFactory.getLogger(GatewayExceptionHandler.class);
  
      @Override
      public Mono<Void> handle(ServerWebExchange exchange, Throwable ex)
      {
          ServerHttpResponse response = exchange.getResponse();
  
          if (exchange.getResponse().isCommitted())
          {
              return Mono.error(ex);
          }
  
          String msg;
  
          if (ex instanceof NotFoundException)
          {
              msg = "服务未找到";
          }
          else if (ex instanceof ResponseStatusException)
          {
              ResponseStatusException responseStatusException = (ResponseStatusException) ex;
              msg = responseStatusException.getMessage();
          }
          else
          {
              msg = "内部服务器错误";
          }
  
          log.error("[网关异常处理]请求路径:{},异常信息:{}", exchange.getRequest().getPath(), ex.getMessage());
  
          return ServletUtils.webFluxResponseWriter(response, msg);
      }
  }
  