GateWay过滤器中使用OpenFeign调用其他服务报错（已解决！）

报错

java.lang.IllegalStateException: block()/blockFirst()/blockLast() are blocking, which is not supported in thread reactor-http-nio-3

@Component
public class ShiroFilter implements GlobalFilter, Ordered {
    AuthFeign authFeign;

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {

        ServerHttpRequest request = exchange.getRequest();
        ServerHttpResponse response = exchange.getResponse();

        String requestUrl = exchange.getRequest().getURI().getRawPath();
        System.out.println("requestUrl:"+requestUrl);

        // OpenFeign
        authFeign = SpringUtils.getBean(AuthFeign.class);
        boolean permitted = authFeign.isPermitted(requestUrl);
        if(!permitted){
            return Response(response, new Result(401,"未授权"));
        }
        System.out.println(permitted);
        return chain.filter(exchange);
    }
}


java.lang.IllegalStateException: block()/blockFirst()/blockLast() are blocking, which is not supported in thread reactor-http-nio-3
    at reactor.core.publisher.BlockingSingleSubscriber.blockingGet(BlockingSingleSubscriber.java:83) ~[reactor-core-3.4.9.jar:3.4.9]
    Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: 
Error has been observed at the following site(s):
    |_ checkpoint ⇢ org.springframework.cloud.gateway.filter.WeightCalculatorWebFilter [DefaultWebFilterChain]
    |_ checkpoint ⇢ HTTP GET "/post-service/post/detail/2" [ExceptionHandlingWebHandler]
Stack trace:
        at reactor.core.publisher.BlockingSingleSubscriber.blockingGet(BlockingSingleSubscriber.java:83) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.Mono.block(Mono.java:1704) ~[reactor-core-3.4.9.jar:3.4.9]
        at org.springframework.cloud.loadbalancer.blocking.client.BlockingLoadBalancerClient.choose(BlockingLoadBalancerClient.java:150) ~[spring-cloud-loadbalancer-3.0.3.jar:3.0.3]
        at org.springframework.cloud.openfeign.loadbalancer.FeignBlockingLoadBalancerClient.execute(FeignBlockingLoadBalancerClient.java:88) ~[spring-cloud-openfeign-core-3.0.3.jar:3.0.3]
        at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:119) ~[feign-core-10.12.jar:na]
        at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:89) ~[feign-core-10.12.jar:na]
        at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:100) ~[feign-core-10.12.jar:na]
        at com.sun.proxy.$Proxy95.goLogin(Unknown Source) ~[na:na]
        at com.fizzy.gateway.comfig.ShiroFilter.filter(ShiroFilter.java:58) ~[classes/:na]
        at org.springframework.cloud.gateway.handler.FilteringWebHandler$GatewayFilterAdapter.filter(FilteringWebHandler.java:137) ~[spring-cloud-gateway-server-3.0.3.jar:3.0.3]
        at org.springframework.cloud.gateway.filter.OrderedGatewayFilter.filter(OrderedGatewayFilter.java:44) ~[spring-cloud-gateway-server-3.0.3.jar:3.0.3]
        at org.springframework.cloud.gateway.handler.FilteringWebHandler$DefaultGatewayFilterChain.lambda$filter$0(FilteringWebHandler.java:117) ~[spring-cloud-gateway-server-3.0.3.jar:3.0.3]
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:44) [reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) [reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) [reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.Mono.subscribe(Mono.java:4338) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:255) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) [reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) [reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) [reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.Mono.subscribe(Mono.java:4338) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:255) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:157) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.innerNext(FluxConcatMap.java:282) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:861) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:120) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:151) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:120) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.innerNext(FluxConcatMap.java:282) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:861) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onNext(FluxOnErrorResume.java:79) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoPeekTerminal$MonoTerminalPeekSubscriber.onNext(MonoPeekTerminal.java:180) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoFilterWhen$MonoFilterWhenMain.onNext(MonoFilterWhen.java:149) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.Operators$ScalarSubscription.request(Operators.java:2398) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoFilterWhen$MonoFilterWhenMain.onSubscribe(MonoFilterWhen.java:112) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoJust.subscribe(MonoJust.java:55) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.Mono.subscribe(Mono.java:4338) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.drain(FluxConcatMap.java:449) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.onNext(FluxConcatMap.java:251) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxDematerialize$DematerializeSubscriber.onNext(FluxDematerialize.java:98) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxDematerialize$DematerializeSubscriber.onNext(FluxDematerialize.java:44) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:270) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:228) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxDematerialize$DematerializeSubscriber.request(FluxDematerialize.java:127) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.onSubscribe(FluxConcatMap.java:236) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxDematerialize$DematerializeSubscriber.onSubscribe(FluxDematerialize.java:77) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:164) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:86) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.InternalFluxOperator.subscribe(InternalFluxOperator.java:62) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxDefer.subscribe(FluxDefer.java:54) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.Mono.subscribe(Mono.java:4338) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.drain(FluxConcatMap.java:449) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.onSubscribe(FluxConcatMap.java:219) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:164) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:86) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) [reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) [reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.Mono.subscribe(Mono.java:4338) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:255) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.9.jar:3.4.9]
        at reactor.netty.http.server.HttpServer$HttpServerHandle.onStateChange(HttpServer.java:915) ~[reactor-netty-http-1.0.10.jar:1.0.10]
        at reactor.netty.ReactorNetty$CompositeConnectionObserver.onStateChange(ReactorNetty.java:654) ~[reactor-netty-core-1.0.10.jar:1.0.10]
        at reactor.netty.transport.ServerTransport$ChildObserver.onStateChange(ServerTransport.java:478) ~[reactor-netty-core-1.0.10.jar:1.0.10]
        at reactor.netty.http.server.HttpServerOperations.onInboundNext(HttpServerOperations.java:517) ~[reactor-netty-http-1.0.10.jar:1.0.10]
        at reactor.netty.channel.ChannelOperationsHandler.channelRead(ChannelOperationsHandler.java:93) ~[reactor-netty-core-1.0.10.jar:1.0.10]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at reactor.netty.http.server.HttpTrafficHandler.channelRead(HttpTrafficHandler.java:208) ~[reactor-netty-http-1.0.10.jar:1.0.10]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) ~[netty-codec-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) ~[netty-codec-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[netty-transport-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) ~[netty-common-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.67.Final.jar:4.1.67.Final]
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.67.Final.jar:4.1.67.Final]
        at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_152]

已解决
参考，写得很详细

Spring Cloud Gateway 调用Feign异步问题 Spring Cloud Gateway 调用Feign异步报错问题#HttpMessageConverters#异步调用问题#HttpMessageConverters#异步调用问题

https://blog.csdn.net/qq_33811736/article/details/115865879

采取异步调用
把原来的

boolean permitted = authFeign.isPermitted(requestUrl,token);

改为


Future<Boolean> future = executorService.submit(() ->authFeign.isPermitted(requestUrl,token));

          try {
            permitted = future.get();
            System.out.println(permitted);
        } catch (InterruptedException | ExecutionException e) {
            e.printStackTrace();
        }

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董小冲 2021-10-22 09:23
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博主你解决了吗我也遇到了

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在无清风的博客特殊流程控制continuc，brcak使用 break 作用于循环中，表示跳出当前循环 continue 作用于循环中，表示跳过当前循环剩余的部分，进入到下一次循环 return 作用于方法中，表示结束该方法数组的简介及作用简介数组...
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