跨域问题解决方案

@Configuration
public class CorsConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("*", "http://imapi.lbbtech.com", "http://imapi.lvcchong.com", "http://im.lbbtech.com", "http://im.lvcchong.com")
                .allowCredentials(true)
                .allowedHeaders("*")
                .allowedMethods("*")
                .maxAge(3600);
    }


}

@Configuration
public class Cors {
    private static final String MAX_AGE = "18000L";

    @Bean
    public WebFilter corsFilter() {
        return (ServerWebExchange ctx, WebFilterChain chain) -> {
            ServerHttpRequest request = ctx.getRequest();
            log.info("requestHeaders.getOrigin():corsFilter:{requestHeaders.getOrigin()}", request.getRemoteAddress());
            if (CorsUtils.isCorsRequest(request)) {
                HttpHeaders requestHeaders = request.getHeaders();
                ServerHttpResponse response = ctx.getResponse();
                HttpMethod requestMethod = requestHeaders.getAccessControlRequestMethod();
                HttpHeaders headers = response.getHeaders();
                headers.add(HttpHeaders.ACCESS_CONTROL_ALLOW_ORIGIN, requestHeaders.getOrigin());
                log.info("requestHeaders.getOrigin():corsFilter:{requestHeaders.getOrigin()}", requestHeaders.getOrigin());
                headers.add(HttpHeaders.ACCESS_CONTROL_ALLOW_HEADERS, "Origin, No-Cache, X-Requested-With, If-Modified-Since, Pragma, Last-Modified, Cache-Control, Expires, Content-Type, X-E4M-With,userId,token");
                headers.add(HttpHeaders.ACCESS_CONTROL_ALLOW_CREDENTIALS, "true");
                headers.add(HttpHeaders.ACCESS_CONTROL_EXPOSE_HEADERS, "*");
                headers.add(HttpHeaders.ACCESS_CONTROL_MAX_AGE, MAX_AGE);
                if (request.getMethod() == HttpMethod.OPTIONS) {
                    response.setStatusCode(HttpStatus.OK);
                    return Mono.empty();
                }
            }

            return chain.filter(ctx);
        };
    }

    @Bean
    public ServerCodecConfigurer serverCodecConfigurer() {
        return new DefaultServerCodecConfigurer();
    }

    @Bean
    public HiddenHttpMethodFilter hiddenHttpMethodFilter() {
        return new HiddenHttpMethodFilter() {
            @Override
            public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {
                return chain.filter(exchange);
            }
        };
    }
}