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update 使用 gateway 自带工具 优化缓存Request与body

master
疯狂的狮子Li 2022-05-31 05:03:34 +00:00 committed by Gitee
parent fca189fa73
commit ad7133f39d
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1 changed files with 6 additions and 19 deletions
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25
ruoyi-gateway/src/main/java/com/ruoyi/gateway/filter/CacheRequestFilter.java
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@ -6,6 +6,7 @@ import org.springframework.cloud.gateway.filter.GatewayFilter;
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.cloud.gateway.support.ServerWebExchangeUtils;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.DataBufferFactory;
import org.springframework.core.io.buffer.DataBufferUtils;
@ -58,26 +59,12 @@ public class CacheRequestFilter extends AbstractGatewayFilterFactory<CacheReques
{
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());
});
}
}