Question

我正在尝试通过WSO2 API管理器（作为API网关）运行网络套接字服务。我有一个可行的概念验证，其中网关针对笔记本电脑上的服务运行（网关位于服务器上，但是我在Eclipse中运行了该服务以对其进行测试）。现在，我正在尝试使其与另一台服务器上运行的服务一起使用。如果我在网关的API定义中调用配置为端点的URL，则它将起作用。如果我通过网关运行，则不会。 wso2carbon.log显示：

TID: [-1] [] [2019-07-02 16:00:55,260] ERROR {org.apache.synapse.core.axis2.Axis2Sender} -  Unexpected error during sending message out {org.apache.synapse.core.axis2.Axis2Sender}
java.lang.IllegalArgumentException: port out of range:-1
        at java.net.InetSocketAddress.checkPort(InetSocketAddress.java:143)
        at java.net.InetSocketAddress.<init>(InetSocketAddress.java:224)
        at io.netty.bootstrap.Bootstrap.connect(Bootstrap.java:97)
        at org.wso2.carbon.websocket.transport.WebsocketConnectionFactory.cacheNewConnection(WebsocketConnectionFactory.java:169)
        at org.wso2.carbon.websocket.transport.WebsocketConnectionFactory.getChannelHandler(WebsocketConnectionFactory.java:79)
        at org.wso2.carbon.websocket.transport.WebsocketTransportSender.sendMessage(WebsocketTransportSender.java:106)
        at org.apache.axis2.transport.base.AbstractTransportSender.invoke(AbstractTransportSender.java:112)
        at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
        at org.apache.axis2.description.OutOnlyAxisOperationClient.executeImpl(OutOnlyAxisOperation.java:297)
        at org.apache.axis2.client.OperationClient.execute(OperationClient.java:149)
        at org.apache.synapse.core.axis2.Axis2FlexibleMEPClient.send(Axis2FlexibleMEPClient.java:592)
        at org.apache.synapse.core.axis2.Axis2Sender.sendOn(Axis2Sender.java:83)
        at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:548)
        at org.apache.synapse.endpoints.AbstractEndpoint.send(AbstractEndpoint.java:382)
        at org.apache.synapse.endpoints.AddressEndpoint.send(AddressEndpoint.java:65)
        at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:121)
        at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:97)
        at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:59)
        at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:158)
        at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:1005)
        at org.wso2.carbon.inbound.endpoint.protocol.websocket.InboundWebsocketSourceHandler.injectToSequence(InboundWebsocketSourceHandler.java:469)
        at org.wso2.carbon.inbound.endpoint.protocol.websocket.InboundWebsocketSourceHandler.handleHandshake(InboundWebsocketSourceHandler.java:182)
        at org.wso2.carbon.inbound.endpoint.protocol.websocket.InboundWebsocketSourceHandler.channelRead(InboundWebsocketSourceHandler.java:131)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
        at org.wso2.carbon.apimgt.gateway.handlers.WebsocketInboundHandler.channelRead(WebsocketInboundHandler.java:125)
        at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:147)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:244)
        at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:147)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846)
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
        at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:110)
        at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
        at java.lang.Thread.run(Thread.java:748)
TID: [-1] [] [2019-07-02 16:00:55,267]  WARN {org.apache.synapse.core.axis2.Axis2SynapseEnvironment} -  Executing fault handler due to exception encountered {org.apache.synapse.core.axis2.Axis2SynapseEnvironment}
TID: [-1] [] [2019-07-02 16:00:55,267]  WARN {org.apache.synapse.endpoints.EndpointContext} -  Endpoint : AnonymousEndpoint with address ws://redacted.example.com/notifications/v1 will be marked SUSPENDED as it failed {org.apache.synapse.endpoints.EndpointContext}
TID: [-1] [] [2019-07-02 16:00:55,267]  WARN {org.apache.synapse.endpoints.EndpointContext} -  Suspending endpoint : AnonymousEndpoint with address ws://redacted.example.com/notifications/v1 - last suspend duration was : 30000ms and current suspend duration is : 30000ms - Next retry after : Tue Jul 02 16:01:25 EEST 2019 {org.apache.synapse.endpoints.EndpointContext}
TID: [-1] [] [2019-07-02 16:00:55,267]  INFO {org.apache.synapse.mediators.builtin.LogMediator} -  STATUS = Executing default 'fault' sequence, ERROR_CODE = 0, ERROR_MESSAGE = Unexpected error during sending message out {org.apache.synapse.mediators.builtin.LogMediator}
TID: [-1] [] [2019-07-02 16:00:55,345]  INFO {org.apache.synapse.mediators.builtin.LogMediator} -  STATUS = Executing default 'fault' sequence, ERROR_CODE = 303001, ERROR_MESSAGE = Currently , Address endpoint : [ Name : AnonymousEndpoint ] [ State : SUSPENDED ] {org.apache.synapse.mediators.builtin.LogMediator}

正在运行WSO2 API Manager 2.1版（是的，我们正在积极计划升级，但如果可能的话，我需要使其在当前版本上运行）。不幸的是，我也无法在我的机器上重复我的初始PoC。我认为这是网关中的内容（尽管我不知道已更改任何内容）。但是，我的IT部门同时更改了我们在本地计算机上安装的防火墙，所以我不能排除...

Answer 1

使用wss端点时，我们能够观察到一些错误，并且可以通过以下方法消除错误。

请在 / repository / deployment / server / synapse-configs / default / inbound-endpoints目录中的SecureWebSocketInboundEndpoint.xml文件中包含以下参数。

<parameter name="wss.ssl.protocols">TLSv1.1,TLSv1.2</parameter>

此外，如果文件中存在以下参数（wss.ssl.trust.store.file和wss.ssl.trust.store.pass），请从同一SecureWebSocketInboundEndpoint.xml文件中删除以下参数。

<parameter name="wss.ssl.trust.store.file">repository/resources/security/client-truststore.jks</parameter>
<parameter name="wss.ssl.trust.store.pass">wso2carbon</parameter>

请使用以下示例Web套接字客户端尝试并运行WSS客户端。请更改变量carbonKeyStoreLocation以指向 /repository/resources/security/wso2carbon.jks。请注意，WSS API的端口是8099。
您可以在以下WSO2官方文档的 WSS支持部分下下载WSS客户端。（在第二步中。）[1]此外，请使用您的访问令牌，Web套接字端点和carbonKeyStoreLocation进行更改，以尝试该方案。

[1] https://docs.wso2.com/display/AM260/Create+a+WebSocket+API

使用ws端点时，不需要配置carbonKeyStoreLocation。只有您需要包括正确的访问令牌和正确的ws端点。您可以在上述相同的文档中获得WS客户端。[1]

端口超出范围：通过WSO2 API Manager的Web Socket API -1

1 个答案: