gateway解决跨域

package cn.space.gateway.core.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.web.cors.reactive.CorsUtils;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebFilter;
import org.springframework.web.server.WebFilterChain;
import reactor.core.publisher.Mono;

@Configuration
public class CorsConfig {
_private static final String _ALLOWED_HEADERS = “,version,content-type,apptype,authorization,clientversion,parkid,X-Requested-With”;
private static final String ALLOWED_METHODS = ““;
private static final String ALLOWED_ORIGIN = ““;
private static final String ALLOWED_EXPOSE = ““;
private static final String MAX_AGE = “3600”;

@Bean
public WebFilter corsFilter() {
_return (ServerWebExchange ctx, WebFilterChain chain) -> {
ServerHttpRequest request = ctx.getRequest();
String url = request.getPath().toString();
if (CorsUtils._isCorsRequest(_request)) {
ServerHttpResponse response = ctx.getResponse();
HttpHeaders headers = response.getHeaders();
headers.add(“Access-Control-Allow-Origin”, request.getHeaders().getFirst(HttpHeaders._ORIGIN));
headers.add(“Access-Control-Allow-Methods”, ALLOWED_METHODS);
headers.add(“Access-Control-Max-Age”, MAX_AGE);
headers.add(“Access-Control-Allow-Headers”, ALLOWED_HEADERS);
headers.add(“Access-Control-Expose-Headers”, ALLOWED_EXPOSE);
headers.add(“Access-Control-Allow-Credentials”, “true”);

        if _(_request.getMethod_() _== HttpMethod._OPTIONS) {<br />               _response.setStatusCode_(_HttpStatus._OK)_;<br />               return Mono._empty()_;<br />            _}<br />         }<br />         _return chain.filter_(_ctx_)_;<br />      _}_;<br />   _}

}_

yml配置

spring:
  cloud:
    gateway:
      default-filters:
        - DedupeResponseHeader=Access-Control-Allow-Origin Access-Control-Allow-Credentials Vary, RETAIN_LAST
      discovery:
        locator:
          enabled: true  #开启从注册中心动态创建路由的功能，利用微服务名进行路由
      globalcors:        
        corsConfigurations:
          '[/**]': 
            allowedOrigins: "*" 
            allowedMethods: "*"