异常

io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: /192.168.8.13:8002
    Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: 
Error has been observed at the following site(s):
    |_ checkpoint ⇢ org.springframework.cloud.gateway.filter.WeightCalculatorWebFilter [DefaultWebFilterChain]
    |_ checkpoint ⇢ HTTP POST "/payment/get/1" [ExceptionHandlingWebHandler]
Stack trace:
Caused by: java.net.ConnectException: Connection refused: no further information
    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) ~[na:1.8.0_181]
    at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) ~[na:1.8.0_181]
    at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330) ~[netty-transport-4.1.43.Final.jar:4.1.43.Final]
    at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334) ~[netty-transport-4.1.43.Final.jar:4.1.43.Final]
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:688) ~[netty-transport-4.1.43.Final.jar:4.1.43.Final]
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:635) ~[netty-transport-4.1.43.Final.jar:4.1.43.Final]
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:552) ~[netty-transport-4.1.43.Final.jar:4.1.43.Final]
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:514) ~[netty-transport-4.1.43.Final.jar:4.1.43.Final]
    at io.netty.util.concurrent.SingleThreadEventExecutor$6.run(SingleThreadEventExecutor.java:1050) ~[netty-common-4.1.43.Final.jar:4.1.43.Final]
    at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.43.Final.jar:4.1.43.Final]
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.43.Final.jar:4.1.43.Final]
    at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_181]