google-chrome-devtools 相关问题

我正在开发一个 chrome 扩展，它将抓取网站并在其内页上执行点击功能。这是我的文件及其各自的代码： popup.html 文件：我正在开发一个 Chrome 扩展程序，它将抓取网站并在其内页上执行点击功能。这是我的文件及其各自的代码： popup.html 文件： <link href="popup.css" rel="stylesheet" type="text/css" /> <script type="module" src="popup.js"></script> <div class="container"> <button class="btnStart" id="btnStart">Start</button> </div> popup.js 文件： import { getActiveTabURL } from "./utils.js"; document.addEventListener("DOMContentLoaded", async () => { const activeTab = await getActiveTabURL(); if (!activeTab.url.includes("example.com")) { const container = document.querySelector(".container"); container.innerHTML = '<div class="title">This is not a example website page.</div>'; return; } else { document.getElementById('btnStart').addEventListener('click', function () { chrome.tabs.query({ active: true, currentWindow: true }, function (tabs) { const tabId = tabs[0].id; chrome.tabs.sendMessage(tabId, { action: "BEGIN", message: "BEGIN", urlPath: activeTab.url, tabId: tabId }, function (response) { // Handle the response here if needed console.log("0) outer response in popup.js main script file") console.log(response); chrome.runtime.sendMessage({ tabId: response.tabId, message: "START", urlPath: response.urlPath }, function (inner) { console.log("1) inner response in popup.js main script file") console.log(inner); }); }); }); }); } }); contentScript.js 文件： const tryConnect = () => { chrome.runtime.onMessage.addListener(async (msg, sender, sendResponse) => { if (msg.action === "scrapeAndClick") { console.log("Scraping and Clicking..."); const messageButtonParent = document.querySelector(".profile-action-compose-option"); const messageButton = messageButtonParent ? messageButtonParent.querySelector("button") : null; if (messageButton) { console.log(messageButton.innerText); } else { console.error("Button not found"); } sendResponse({ complete: true, result: "Scrape and click completed" }); } if (msg.action === "BEGIN") { const urlPath = msg.urlPath; const tabId = msg.tabId; const activeTabPageResultsContainer = document.getElementsByClassName("reusable-search__result-container"); let individualResultContainer; let individualProfileContainer; const profileLinks = []; for (var i = 0; i < activeTabPageResultsContainer.length; i++) { individualResultContainer = activeTabPageResultsContainer[i]; individualProfileContainer = individualResultContainer.querySelector('.app-aware-link'); profileLinks.push(individualProfileContainer.getAttribute("href")); } const item = profileLinks[0]; console.log("Profile links collected:", { complete: true, result: "Profile links collected", tabId: tabId, message: "START", urlPath: item }); sendResponse({ complete: true, result: "Profile links collected", tabId: tabId, message: "START", urlPath: item }); } }); }; setTimeout(tryConnect, 1000); background.js 文件： chrome.runtime.onMessage.addListener((obj, sender, sendResponse) => { const message = obj.message; const urlPath = obj.urlPath; if (message === "START") { chrome.tabs.create({ url: urlPath, active: false }, function (tab) { console.log(`new tab created dynamically with id: ${tab.id}`); return new Promise((resolve, reject) => { chrome.tabs.sendMessage(tab.id, { action: "scrapeAndClick", message: "scrapeAndClick", urlPath: urlPath, tabId: tab.id }, function (response) { if (response && response.complete) { console.log(response); // sendResponse(response); resolve(response); } else { console.error('Error in scraping and clicking or response is undefined:', response); reject(response); } }); }); }); // Return true to indicate that sendResponse will be called asynchronously return true; } // Ensure to resolve the promise even if not using it return Promise.resolve(); }); manifest.json 文件包含以下内容： { "name": "Example page scraping", "version": "0.0.1", "description": "Scraping and submitting forms", "permissions": [ "storage", "tabs" ], "host_permissions": [ "https://*.example.com/*" ], "externally_connectable": { "matches": [ "*://*.example.com/*" ] }, "background": { "service_worker": "background.js" }, "content_scripts": [ { "matches": [ "*://*.example.com/*" ], "js": [ "contentScript.js" ] } ], "web_accessible_resources": [ { "resources": [ "assets/icon-16_x_16.png", "assets/icon-24_x_24.png", "assets/icon-32_x_32.png" ], "matches": [ "https://*.example.com/*" ] } ], "action": { "default_icon": { "16": "assets/icon-16_x_16.png", "24": "assets/icon-24_x_24.png", "32": "assets/icon-32_x_32.png" }, "default_title": "Example Scaping and Submission", "default_popup": "popup.html" }, "manifest_version": 3 } 我不断收到以下错误： i) 端口已断开。内容脚本可能无法注入。 ii) “未检查的runtime.lastError：无法建立连接。接收端不存在。” 创建新选项卡，但之后我收到上述错误我认为你在这里有一个误解，伙计，chrome.runtime.onMessage仅接收通过chrome.runtime.sendMessage方法发送的消息。因此，您的内容脚本中不会收到使用 port.postMessage 从后台发送的消息。同步后台和内容脚本之间的通信方法可能会解决这些问题。需要注意的是，端口连接将在 5 分钟后自动关闭，应予以处理。

javascript google-chrome-extension google-chrome-devtools

回答 1 投票 0

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google-chrome-devtools

回答 4 投票 0

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google-chrome google-chrome-devtools performance-testing delay web-performance

回答 6 投票 0

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