Unity3D WebGL获取网页Application/LocalStorage下的Token值

Unity3D WebGL获取网页Application/LocalStorage下的Token值Unity3D 与网页交互

小谷丶

413人浏览 · 2025-03-18 23:07:40

小谷丶 · 2025-03-18 23:07:40 发布

Unity3DWebGL获取网页Application/LocalStorage下的Token值

功能需求：初始化时获取token值，在unity需要用时进行调用。

功能需求：初始化时获取token值，在unity需要用时进行调用。

获取token的位置如图所示：
在这里插入图片描述

一、Unity3D中添加代码

优先在Unity3D中写好调用和被调用的事件

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class GetToken : MonoBehaviour
{
    void Update()
    {
        if (Input.GetKeyDown(KeyCode.V))
        {
            Application.ExternalCall("sendToUnity");//此处为调用JS中函数的代码
        }
    }

    public void JSToken(string token) //此函数为JS调用的函数（带传参），方法名要与第三项中的第二个参数保持一致
    {
        Debug.Log("获得token：" + token);
    }
}

二、创建gameObject，命名为“TokenObj”，将GetToken脚本添加到物体上

在这里插入图片描述

三、发布WebGL文件,并在index中添加代码，用来获取aToken的值，并存在内存中

1、在发布好的index中进行添加以下代码，此代码为获取aToken中的value值，并存在定义的全局变量中：

 var aToken =""; //定义一个全局变量，用来储存token值
 window.addEventListener('message', function(event) 
 {
    let receivedData = event.data.token;
    window.localStorage.setItem('aToken',receivedData);
    aToken = receivedData;
    console.log("aToken赋值", aToken); //输出一下看下是否成功了
 });

四、在index中定义全局变量用于保存Unity实例

在这里插入图片描述

五、在Index中添加Unity调用的JS方法，等待调用时机

 // 示例：在其他地方使用实例发送消息
  function sendToUnity()
   {
     if(gameInstance) 
     {
       // 调用Unity中的方法（参数：对象名，方法名，参数）
       gameInstance.SendMessage('TokenObj', 'JSToken', aToken);
     }
  }

六、准备就绪，将文件上传到服务器上，登录账号密码，确保获取位置有正确的token值，测试完成

1.运行服务器上的程序，index中的日志输出成功，证明已经成功获取了token值
在这里插入图片描述
2.按下V按键，Unity3D中的log日志输出成功，代表token值成功传入Unity3D中，功能完整实现。

七、完整的index如下

<!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 | 山东省风之谷网络科技_平台对接</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">
      <canvas id="unity-canvas" width=1920 height=1080></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 id="unity-warning"> </div>
      <div id="unity-footer">
        <div id="unity-webgl-logo"></div>
        <div id="unity-fullscreen-button"></div>
        <div id="unity-build-title">FZG_平台对接</div>
      </div>
    </div>
    <script>
      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");
      var warningBanner = document.querySelector("#unity-warning");

      // Shows a temporary message banner/ribbon for a few seconds, or
      // a permanent error message on top of the canvas if type=='error'.
      // If type=='warning', a yellow highlight color is used.
      // Modify or remove this function to customize the visually presented
      // way that non-critical warnings and error messages are presented to the
      // user.
      function unityShowBanner(msg, type) {
        function updateBannerVisibility() {
          warningBanner.style.display = warningBanner.children.length ? 'block' : 'none';
        }
        var div = document.createElement('div');
        div.innerHTML = msg;
        warningBanner.appendChild(div);
        if (type == 'error') div.style = 'background: red; padding: 10px;';
        else {
          if (type == 'warning') div.style = 'background: yellow; padding: 10px;';
          setTimeout(function() {
            warningBanner.removeChild(div);
            updateBannerVisibility();
          }, 5000);
        }
        updateBannerVisibility();
      }
      
	  //此处为添加的函数-------------------
	   var aToken ="1";
	   window.addEventListener('message', function(event) 
	  {
        let receivedData = event.data.token;
        window.localStorage.setItem('aToken',receivedData);
		aToken = receivedData;
        console.log("aToken赋值", aToken);
       });
		
		
		 // 示例：在其他地方使用实例发送消息
      function sendToUnity() 
      {
        if(gameInstance) 
        {
	      console.log("TokenObj传参");
          // 调用Unity中的方法（参数：对象名，方法名，参数）
          gameInstance.SendMessage('TokenObj', 'JSToken', aToken);
        }
       }
   //-------------------
	
      var buildUrl = "Build";
      var loaderUrl = buildUrl + "/WebT.loader.js";
      var config = {
        dataUrl: buildUrl + "/WebT.data.unityweb",
        frameworkUrl: buildUrl + "/WebT.framework.js.unityweb",
        codeUrl: buildUrl + "/WebT.wasm.unityweb",
        streamingAssetsUrl: "StreamingAssets",
        companyName: "DefaultCompany",
        productName: "FZG_平台对接",
        productVersion: "0.1",
        showBanner: unityShowBanner,
      };

      // By default Unity keeps WebGL canvas render target size matched with
      // the DOM size of the canvas element (scaled by window.devicePixelRatio)
      // Set this to false if you want to decouple this synchronization from
      // happening inside the engine, and you would instead like to size up
      // the canvas DOM size and WebGL render target sizes yourself.
      // config.matchWebGLToCanvasSize = false;

      if (/iPhone|iPad|iPod|Android/i.test(navigator.userAgent)) {
        container.className = "unity-mobile";
        // Avoid draining fillrate performance on mobile devices,
        // and default/override low DPI mode on mobile browsers.
        config.devicePixelRatio = 1;
        unityShowBanner('WebGL builds are not supported on mobile devices.');
      } else {
        canvas.style.width = "960px";
        canvas.style.height = "600px";
      }
      loadingBar.style.display = "block";
	  
	   // 声明全局变量用于保存Unity实例
	  var gameInstance;
      var script = document.createElement("script");
      script.src = loaderUrl;
      script.onload = () => {
        createUnityInstance(canvas, config, (progress) => {
          progressBarFull.style.width = 100 * progress + "%";
        }).then((unityInstance) => {
          loadingBar.style.display = "none";		  
		   // 示例：将定义的实例进行赋值
		  gameInstance = unityInstance;		  
		  // 示例：在控制台暴露实例方便调试
          console.log("Unity实例已创建:", gameInstance);	  
          fullscreenButton.onclick = () => {
            unityInstance.SetFullscreen(1);
          };
        }).catch((message) => {
          alert(message);
        });
      };
      document.body.appendChild(script);
    </script>
  </body>
</html>