SpringCloud Webflux 过滤器增加header 传递

webflux 使用异步非阻塞的方式，传递Header还需要我们自己增加代码传递：

定义过滤器，便携下面的配置可以尝试一下header的传递到后面的服务中。

@Component
public class AuthorizationFilter implements WebFilter {
    @Override
    public Mono filter(ServerWebExchange exchange, WebFilterChain chain) {
        ServerHttpRequest mutatedRequest = exchange.getRequest().mutate().header(HttpHeaders.AUTHORIZATION, "Bearer " + authHeader).build();
        ServerWebExchange mutatedExchange = exchange.mutate().request(mutatedRequest).build();
        return chain.filter(mutatedExchange);
    }
}


## Kotlin 的方式
@Component
class AuthorizationFilter : WebFilter {
    override fun filter(exchange: ServerWebExchange, chain: WebFilterChain): Mono {
        val mutatedRequest = exchange.request.mutate().header(HttpHeaders.AUTHORIZATION, "Bearer $authHeader").build()
        val mutatedExchange = exchange.mutate().request(mutatedRequest).build()
        return chain.filter(mutatedExchange)
    }
}