心得技巧
Node-RED中建立Websocket客户端连接
发布时间：2022-06-20 发布网站：脚本宝典
脚本宝典收集整理的这篇文章主要介绍了Node-RED中建立Websocket客户端连接，脚本宝典觉得挺不错的，现在分享给大家，也给大家做个参考。
场景
Node-red简介与Windows上安装、启动和运行示例：
https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/121884766
https://bLOG.csdn.net/BADAO_LIUMANG_QIZHI/article/details/124130985
Node-RED中建立websocket客户端是使用websocket in 和websocket out建立。
@H_304_14@
注：
博客： https://blog.csdn.net/badao_liumang_qizhi 关注公众号 霸道的程序猿 获取编程相关电子书、教程推送与免费下载。
实现
1、拖拽inject节点，指定传送字符串
2、拖拽websocket out节点并编辑
类型为连接，URL为ws的服务端地址
3、再编辑一个websocket in节点，在类型选择连接，URL选择之前新增的url
4、搭建一个ws的服务端，与客户端进行连接测试，ws服务端可以自己网上搜搜。
5、json数据
[ { "id": "f4a4d8eab7935bc8", "tyPE": "tab", "label": "流程 3", "disabled": false, "info": "", "env": [] }, { "id": "c428312d1f6165d1", "type": "mqtt-broker", "name": "mqtt", "broker": "127.0.0.1", "port": "1883", "clientid": "", "autoConnect": true, "usetls": false, "PRotocolVersion": "4", "keepalive": "60", "cleansession": true, "birthTopic": "", "birthQos": "0", "birthPayload": "", "birthMsg": {}, "closeTopic": "", "closeQos": "0", "closePayload": "", "cloSEMsg": {}, "willTopic": "", "willQos": "0", "willPayload": "", "willMsg": {}, "sessionExpiry": "" }, { "id": "51eee50b4ec9422f", "type": "ui_group", "name": "@R_406_341@Demo", "tab": "29ae4c620f43ee0d", "order": 1, "disp": true, "width": "6", "collapse": false, "classname": "" }, { "id": "29ae4c620f43ee0d", "type": "ui_tab", "name": "Home", "icon": "dashboard", "disabled": false, "hidden": false }, { "id": "a506c767a5c1edbd", "type": "ui_base", "theme": { "name": "theme-light", "lightTheme": { "default": "#0094CE", "baseColor": "#0094CE", "baseFont": "-apple-System,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-sans,ubuntu,Cantarell,Helvetica Neue,sans-serif", "edITed": true, "reset": false }, "darkTheme": { "default": "#097479", "baseColor": "#097479", "baseFont": "-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif", "edited": false }, "customTheme": { "name": "Untitled Theme 1", "default": "#4B7930", "baseColor": "#4B7930", "baseFont": "-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif" }, "themestate": { "base-color": { "default": "#0094CE", "value": "#0094CE", "edited": false }, "page-titlebar-backgroundColor": { "value": "#0094CE", "edited": false }, "page-backgroundColor": { "value": "#fafafa", "edited": false }, "page-sidebar-backgroundColor": { "value": "#ffffff", "edited": false }, "group-textColor": { "value": "#1bbfff", "edited": false }, "group-borderColor": { "value": "#ffffff", "edited": false }, "group-backgroundColor": { "value": "#ffffff", "edited": false }, "widget-textColor": { "value": "#111111", "edited": false }, "widget-backgroundColor": { "value": "#0094ce", "edited": false }, "widget-borderColor": { "value": "#ffffff", "edited": false }, "base-font": { "value": "-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen-Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif" } }, "AngularTheme": { "Primary": "indigo", "accents": "blue", "warn": "red", "background": "grey", "palette": "light" } }, "site": { "name": "Node-RED Dashboard", "hideToolbar": "false", "allowSwipe": "false", "lockMenu": "false", "allowTempTheme": "true", "dateFormat": "DD/MM/yyYY", "sizes": { "sx": 48, "sy": 48, "gx": 6, "gy": 6, "cx": 6, "cy": 6, "px": 0, "py": 0 } } }, { "id": "248cbbb0.18e794", "type": "ui_group", "name": "MyGroup", "tab": "3f79c420.cfc1bc", "order": 1, "disp": true, "width": "6", "collapse": false }, { "id": "3f79c420.CFc1bc", "type": "ui_tab", "name": "Home", "icon": "dashboard", "disabled": false, "hidden": false }, { "id": "a0954be5.a7f7e8", "type": "ui_group", "name": "MyInput", "tab": "3f79c420.cfc1bc", "order": 2, "disp": true, "width": "6", "collapse": false }, { "id": "508bd6f8398ab80f", "type": "ui_group", "name": "OpenWeatherMap", "tab": "3f79c420.cfc1bc", "order": 3, "disp": true, "width": "6", "collapse": false }, { "id": "8824dea1.83e31", "type": "websocket-client", "path": "ws://localhost:9898/", "tls": "", "wholemsg": "false" }, { "id": "b40b0437.522ab8", "type": "websocket in", "z": "f4a4d8eab7935bc8", "name": "", "server": "", "client": "8824dea1.83e31", "x": 290, "y": 240, "wires": [ [ "24d481b8.2f71ae" ] ] }, { "id": "ad931922.6eF1b8", "type": "websocket out", "z": "f4a4d8eab7935bc8", "name": "", "server": "", "client": "8824dea1.83e31", "x": 520, "y": 160, "wires": [] }, { "id": "c9dd9e39.c618f", "type": "inject", "z": "f4a4d8eab7935bc8", "name": "", "props": [ { "p": "payload" }, { "p": "topic", "vt": "str" } ], "repeat": "", "crontab": "", "once": false, "onceDelay": 0.1, "topic": "", "payload": "Hello There", "payloadType": "str", "x": 280, "y": 160, "wires": [ [ "ad931922.6ef1b8" ] ] }, { "id": "24d481b8.2f71ae", "type": "debug", "z": "f4a4d8eab7935bc8", "name": "", "active": true, "tosidebar": true, "console": false, "tostatus": false, "complete": "payload", "targetType": "msg", "statusVal": "", "statusType": "auto", "x": 610, "y": 240, "wires": [] } ]
脚本宝典总结
以上是脚本宝典为你收集整理的Node-RED中建立Websocket客户端连接全部内容，希望文章能够帮你解决Node-RED中建立Websocket客户端连接所遇到的问题。
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