我在node.js/node-RED中採取了第一步,並且需要從節點組件中執行http請求(GET,POST有和無xml有效內容),所以我認爲xmlhttprequest是我的最好的選擇。我有npm-安裝它。在〜/實際安裝它.node紅/ node_modules和/ usr/local/lib目錄/ node_modules但每次我啓動節點-RED它不與下面的錯誤激活我的節點部件:在安裝/使用xmlhttprequest時遇到問題
Welcome to Node-RED
===================
7 Aug 09:05:20 - [info] Node-RED version: v0.17.5
7 Aug 09:05:20 - [info] Node.js version: v6.11.2
7 Aug 09:05:20 - [info] Darwin 16.7.0 x64 LE
7 Aug 09:05:20 - [info] Loading palette nodes
7 Aug 09:05:21 - [warn] ------------------------------------------------------
7 Aug 09:05:21 - [warn] [rpi-gpio] Info : Ignoring Raspberry Pi specific node
7 Aug 09:05:21 - [warn] [synaptiq-solar] Error: Cannot find module 'xmlhttprequest'
7 Aug 09:05:21 - [warn] ------------------------------------------------------
7 Aug 09:05:21 - [info] Settings file : /Users/rudi/.node-red/settings.js
7 Aug 09:05:21 - [info] User directory : /Users/rudi/.node-red
7 Aug 09:05:21 - [info] Flows file : /Users/rudi/.node-red/flows_Rudi.local.json
7 Aug 09:05:21 - [info] Server now running at http://127.0.0.1:1880/
7 Aug 09:05:21 - [info] Waiting for missing types to be registered:
7 Aug 09:05:21 - [info] - synaptiq-solar
名稱我的組件是synaptiq太陽能及其代碼開始與要求對XMLHttpRequest的成分是這樣的:
var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
而且,我的package.json具有相關部分提到的XMLHttpRequest,你可以看到如下:
{
"name": "synaptiq-solar",
"version": "0.0.1",
"description": "Just playing around, learning how to create a custom node",
"dependencies": {
"xmlhttprequest": "1.8.0"
},
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"node-red": {
"nodes": {
"synaptiq-solar": "synaptiq-solar.js"
}
},
"author": "Smappee n.v.",
"license": "ISC"
}
那麼我做錯了什麼?我應該在其他位置安裝xmlhttprequest組件嗎?有沒有另一個lib目錄,node-RED正在尋找依賴組件?
我可能是對整個節點RED情況有點失落......但'XMLHttpRequest'是JavaScript的生活水平的一部分。爲什麼你需要安裝它..? – Crowes