在Node-Red中將IP地址設置爲UDP-out節點

Question

我的節點紅色流包含一個udp-out節點和我的計算機的ip地址。但是這會不時發生變化，所以我手動需要改變它。如果您想使用msg.ip進行設置，UDP-out節點的工具提示表示將地址留空。

如何使用msg.ip？我還沒有找到解決辦法。它不會設置報告udp地址。

Answer 1

您在節點的配置對話框中留空，然後在您想要通過節點發送的每條消息上，您需要將msg.ip設置爲要發送消息的IP地址。

下面的流程演示：

[{"id":"238e2695.98a252","type":"udp out","z":"59370ac1.51144c","name":"","addr":"","iface":"","port":"","ipv":"udp4","outport":"","base64":false,"multicast":"false","x":547.5,"y":181,"wires":[]},{"id":"2a002216.f8cb3e","type":"inject","z":"59370ac1.51144c","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"x":141.5,"y":180,"wires":[["6d51ce96.66603"]]},{"id":"6d51ce96.66603","type":"change","z":"59370ac1.51144c","name":"","rules":[{"t":"set","p":"ip","pt":"msg","to":"ip","tot":"flow"},{"t":"set","p":"port","pt":"msg","to":"port","tot":"flow"}],"action":"","property":"","from":"","to":"","reg":false,"x":353.5,"y":180,"wires":[["238e2695.98a252"]]}] 

它假定您從流動其他來源設置flow.ip和flow.port。