unity开发webGL，引用js功能。
读写Excel参考连接
打开本地文件参考连接
对JS一点不懂，记录一下开发中用到的调用JS代码，方便以后查找。
包含了调用MQTT和读写Excel功能。
DOCTYPE html>
<html lang="en-us">
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Unity WebGL Player | {{{ PRODUCT_NAME }}}title>
<link rel="shortcut icon" href="TemplateData/favicon.ico">
<link rel="stylesheet" href="TemplateData/style.css">
head>
<body>
<div id="unity-container" class="unity-desktop"
style="width: 100%; height: 100%; margin: auto">
<canvas id="unity-canvas"
style="width: 100%; height: 100%; margin: auto">canvas>
<div id="unity-loading-bar">
<div id="unity-logo">div>
<div id="unity-progress-bar-empty">
<div id="unity-progress-bar-full">div>
div>
div>
div>
<script src="Build/MyMqtt.js">script>//引用的js文件，添加后可以直接使用里边的方法
<script src="Build/xlsx.full.min.js">script>
<script>
var buildUrl = "Build";
var loaderUrl = buildUrl + "/{{{ LOADER_FILENAME }}}";
var config = {
dataUrl: buildUrl + "/{{{ DATA_FILENAME }}}",
frameworkUrl: buildUrl + "/{{{ FRAMEWORK_FILENAME }}}",
codeUrl: buildUrl + "/{{{ CODE_FILENAME }}}",
#if MEMORY_FILENAME
memoryUrl: buildUrl + "/{{{ MEMORY_FILENAME }}}",
#endif
#if SYMBOLS_FILENAME
symbolsUrl: buildUrl + "/{{{ SYMBOLS_FILENAME }}}",
#endif
streamingAssetsUrl: "StreamingAssets",
companyName: "{{{ COMPANY_NAME }}}",
productName: "{{{ PRODUCT_NAME }}}",
productVersion: "{{{ PRODUCT_VERSION }}}",
};
var container = document.querySelector("#unity-container");
var canvas = document.querySelector("#unity-canvas");
var loadingBar = document.querySelector("#unity-loading-bar");
var progressBarFull = document.querySelector("#unity-progress-bar-full");
var fullscreenButton = document.querySelector("#unity-fullscreen-button");
if (/iPhone|iPad|iPod|Android/i.test(navigator.userAgent)) {
container.className = "unity-mobile";
config.devicePixelRatio = 1;
}
loadingBar.style.display = "block";
var gameInstance;
var script = document.createElement("script");
script.src = loaderUrl;
script.onload = () => {
createUnityInstance(canvas, config, (progress) => {
progressBarFull.style.width = 109 * progress + "%";
}).then((unityInstance) => {
loadingBar.style.display = "none";
gameInstance=unityInstance;
});
};
document.body.appendChild(script);
function JsToUnityString(content) {
//console.log(content);
gameInstance.SendMessage("WebToUnity", "JsToUnity", content);
}
window.addEventListener("message", (e) => {
//console.log(e.data);
JsToUnityString(e.data);
});
var mqttClient;
var wsUrl ='ws://localhost:8083/mqtt';
var subNameReceive = '';
function MQTTConnect() {
const options = {
clean: true, // true: 清除会话, false: 保留会话
connectTimeout: 4000, // 超时时间
// 认证信息
//clientId: 'test', //客户端ID
username: 'admin', //连接用户名
password: 'password',//连接密码，有的密码默认为public
// 心跳时间
keepalive: 60,
//Qos: 2,
}
mqttClient = mqtt.connect(wsUrl, options);
mqttClient.on('connect', function () {
//console.log('Connected Succeed')
gameInstance.SendMessage("WebToUnity", "MQTTConnectSucceed");
MQTTSubscribe(subNameReceive);
})
//失败重连
mqttClient.on('reconnect', (error) => {
//console.log('正在重连:', error)
gameInstance.SendMessage("WebToUnity", "MQTTReConnect");
})
//连接失败
mqttClient.on('error', (error) => {
console.log('连接失败:', error)
gameInstance.SendMessage("WebToUnity", "MQTTConnectFail");
})
//接受消息
mqttClient.on('message', function (topic, message) {
// message is Buffer
//console.log("subNmae=" + topic.toString())
//console.log("msg=" + message.toString())
//mqttClient.end()
if(topic==subNameReceive)
{
JsToUnityString(message.toString());
}
})
}
//订阅
function MQTTSubscribe(subNameReceive) {
mqttClient.subscribe(subNameReceive, function (err) {
if (!err) {
gameInstance.SendMessage("WebToUnity", "MQTTSubscribeResult", 1);
}
else {
gameInstance.SendMessage("WebToUnity", "MQTTSubscribeResult", 0);
}
})
}
//发布
function MQTTPublish(subNameSend,content) {
mqttClient.publish(subNameSend, content);
}
//关闭
function MQTTClosed() {
mqttClient.end();
}
function SetDebug() {
return 1//设置是否显示debug信息，0=显示，1=不显示
}
//打开资源管理器选择文件
function clickSelectFileBtn() {
var tempFileLayout = document.getElementById('files');
tempFileLayout.click();
}
//加载excel文件内容，发送给Unity
function fileImport() {
//获取读取文件的File对象
var selectedFile = document.getElementById('files').files[0];
if (selectedFile != null) {
var reader = new FileReader();
reader.readAsBinaryString(selectedFile);
reader.onload = function(e) {
var data = e.target.result;
var workbook = XLSX.read(data, {type: 'binary'});
var sheetNames = workbook.SheetNames; // 工作表名称集合
var worksheet = workbook.Sheets[sheetNames[0]]; // 这里我们只读取第一张sheet
var csv = XLSX.utils.sheet_to_csv(worksheet);
//console.log(csv);
var sendContent={"msgType":"openFile","data":csv};
JsToUnityString(window.JSON.stringify(sendContent));
};
}
}
// 传入csv，执行后就会弹出下载框
function exportExcel(csv)
{
var csvobj = window.JSON.parse(newStr);
var sheet = XLSX.utils.json_to_sheet(csvobj);
openDownloadDialog(sheet2blob(sheet), '导出.xlsx');
}
/**
* 通用的打开下载对话框方法，没有测试过具体兼容性
* @param url 下载地址，也可以是一个blob对象，必选
* @param saveName 保存文件名，可选
*/
function openDownloadDialog(url, saveName)
{
if(typeof url == 'object' && url instanceof Blob)
{
url = URL.createObjectURL(url); // 创建blob地址
}
var aLink = document.createElement('a');
aLink.href = url;
aLink.download = saveName || ''; // HTML5新增的属性，指定保存文件名，可以不要后缀，注意，file:///模式下不会生效
var event;
if(window.MouseEvent) event = new MouseEvent('click');
else
{
event = document.createEvent('MouseEvents');
event.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
}
aLink.dispatchEvent(event);
if(typeof url == 'object' && url instanceof Blob)
{
URL.revokeObjectURL(url);
}
}
// 将一个sheet转成最终的excel文件的blob对象，然后利用URL.createObjectURL下载
function sheet2blob(sheet, sheetName) {
sheetName = sheetName || 'sheet1';
var workbook = {
SheetNames: [sheetName],
Sheets: {}
};
workbook.Sheets[sheetName] = sheet;
// 生成excel的配置项
var wopts = {
bookType: 'xlsx', // 要生成的文件类型
bookSST: false, // 是否生成Shared String Table，官方解释是，如果开启生成速度会下降，但在低版本IOS设备上有更好的兼容性
type: 'binary'
};
var wbout = XLSX.write(workbook, wopts);
var blob = new Blob([s2ab(wbout)], {type:"application/vnd.ms-excel"});
// 字符串转ArrayBuffer
function s2ab(s) {
var buf = new ArrayBuffer(s.length);
var view = new Uint8Array(buf);
for (var i=0; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
return buf;
}
return blob;
}
script>
<input type="file" id="files" style="display:none" onchange="fileImport()">//打开文件按钮，设置为隐藏，只使用功能。
body>
html>