!286 此处修改曾导致 nacos修改xss开关时，spring容器未重启，filter仍起效。故增加参数判断，参数刷新后，xss开关正常关闭。 M...

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2022-12-03 f646bfc0f53e6d86e18d240ee6bfd47afb8edbb6

 ruoyi-gateway/src/main/java/com/ruoyi/gateway/filter/CacheRequestFilter.java

@@ -6,16 +6,17 @@
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.OrderedGatewayFilter;
import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.DataBufferFactory;
import org.springframework.core.io.buffer.DataBufferUtils;
import org.springframework.cloud.gateway.support.ServerWebExchangeUtils;
import org.springframework.http.HttpMethod;
import org.springframework.http.server.reactive.ServerHttpRequestDecorator;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;

/**
 * 获取body请求数据（解决流不能重复读取问题）
 * 
 * @author ruoyi
 */
@Component
public class CacheRequestFilter extends AbstractGatewayFilterFactory<CacheRequestFilter.Config>
{
@@ -49,30 +50,16 @@
        {
            // GET DELETE 不过滤
            HttpMethod method = exchange.getRequest().getMethod();
            if (method == null || method.matches("GET") || method.matches("DELETE"))
            if (method == null || method == HttpMethod.GET || method == HttpMethod.DELETE)
            {
                return chain.filter(exchange);
            }
            return DataBufferUtils.join(exchange.getRequest().getBody()).map(dataBuffer -> {
                byte[] bytes = new byte[dataBuffer.readableByteCount()];
                dataBuffer.read(bytes);
                DataBufferUtils.release(dataBuffer);
                return bytes;
            }).defaultIfEmpty(new byte[0]).flatMap(bytes -> {
                DataBufferFactory dataBufferFactory = exchange.getResponse().bufferFactory();
                ServerHttpRequestDecorator decorator = new ServerHttpRequestDecorator(exchange.getRequest())
            return ServerWebExchangeUtils.cacheRequestBodyAndRequest(exchange, (serverHttpRequest) -> {
                if (serverHttpRequest == exchange.getRequest())
                {
                    @Override
                    public Flux<DataBuffer> getBody()
                    {
                        if (bytes.length > 0)
                        {
                            return Flux.just(dataBufferFactory.wrap(bytes));
                        }
                        return Flux.empty();
                    }
                };
                return chain.filter(exchange.mutate().request(decorator).build());
                    return chain.filter(exchange);
                }
                return chain.filter(exchange.mutate().request(serverHttpRequest).build());
            });
        }
    }