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Thingsboard规则引擎RPC回复节点缺失SessionId报错求助

Thingsboard规则引擎RPC回复节点sessionId缺失报错问题

在仪表板使用旋钮组件时,生成的rpc getValue() 请求传递到规则引擎后,元数据中缺少sessionId,元数据详情如下:

{
    "deviceName": "eui-70b3d52dd3007d4a",
    "deviceType": "vicki",
    "expirationTime": "1687854978319",
    "oneway": "false",
    "originServiceId": "tb-core-1",
    "persistent": "false",
    "requestUUID": "43c40612-9a0c-40e0-bac1-0e002b4cb247"
}

收到的报错信息如下:

java.lang.RuntimeException: Session id is not present in the metadata!
at org.thingsboard.rule.engine.rpc.TbSendRPCReplyNode.onMsg(TbSendRPCReplyNode.java:91)
at org.thingsboard.server.actors.ruleChain.RuleNodeActorMessageProcessor.onRuleChainToRuleNodeMsg(RuleNodeActorMessageProcessor.java:168)
at org.thingsboard.server.actors.ruleChain.RuleNodeActor.onRuleChainToRuleNodeMsg(RuleNodeActor.java:116)
at org.thingsboard.server.actors.ruleChain.RuleNodeActor.doProcess(RuleNodeActor.java:75)
at org.thingsboard.server.actors.service.ContextAwareActor.process(ContextAwareActor.java:56)
at org.thingsboard.server.actors.TbActorMailbox.processMailbox(TbActorMailbox.java:170)
at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1426)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)

已通过以下转换代码适配RPC回复节点所需的requestId和serviceId格式,但仍无法获取sessionId,目前未在文档或论坛找到解决方案,恳请大家提供帮助:

msg = {"targetTemperature" : metadata.targetTemperature};
metadata.requestId = metadata.requestUUID;
metadata.serviceId = metadata.originServiceId;
//metadata.sessionId = "471482a4-1df5-4724-8819-18a3252ecf25";
return {msg: msg, msgType: msgType, metadata: metadata}; 

内容的提问来源于stack exchange,提问作者JustTesting

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最近更新时间:2026.07.18 00:55:16