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实现chatGPT 聊天样式

news 2025/9/12 17:03:12

效果图在这里插入图片描述
代码：

<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Chat Example</title><link rel="stylesheet" href="./highlight/default.min.css"><script src="./highlight/highlight.min.js"></script><script src="./marked/marked.min.js"></script></head><body><div class="title"><span> 软件部测试，后端大模型使用claude2。计划接入gpt4</span></div><div id="chat-container"><div id="chat-messages"></div></div><div class="message-input-wrapper"><textarea type="text" id="message-input" placeholder="请输入您的内容"></textarea><div id="send-button">发送</div></div><script>console.log(window)// 获取需要的DOM元素const chatMessages = document.getElementById("chat-messages");const messageInput = document.getElementById("message-input");const sendButton = document.getElementById("send-button");// formateMarkdown("# Hello World")// 定义发送消息的函数function sendMessage() {const message = messageInput.value;if (message.trim() === "") {return;}// 创建一个新的消息元素，并添加到聊天框let messageElement = `<div class="flex-right"><div class="time-remark-wrapper mr10"><span class="time">${getNowTime()}</span><div class="message user-message" style="display: inline-block;">${message}</div></div><img src="./images/avatar.jpeg" class="avatar"/></div>`chatMessages.innerHTML += messageElement;messageInput.value = "";// 发送消息到服务器sendToServer(message);}function getNowTime() {var currentTime = new Date();var year = currentTime.getFullYear();var month = currentTime.getMonth() + 1; // 月份从 0 开始，所以要加 1var day = currentTime.getDate();var hours = currentTime.getHours();var minutes = currentTime.getMinutes();var seconds = currentTime.getSeconds();// 格式化为两位数if (month < 10) {month = '0' + month;}if (day < 10) {day = '0' + day;}if (hours < 10) {hours = '0' + hours;}if (minutes < 10) {minutes = '0' + minutes;}if (seconds < 10) {seconds = '0' + seconds;}var formattedTime = year + '-' + month + '-' + day + ' ' + hours + ':' + minutes + ':' + seconds;return formattedTime;}function formateMarkdown(message) {var renderer = new marked.Renderer();renderer.code = function (code, language) {var highlightedCode = hljs.highlightAuto(code).value;return '<pre><code class="hljs ' + language + '">' + highlightedCode + '</code></pre>';};marked.setOptions({renderer: renderer,gfm: true,tables: true,breaks: true,pedantic: false,sanitize: false,smartLists: true,smartypants: false,})var parsedHTML = marked.parse(message);let messageHTML = ` <div class="flex-left"><img src="./images/chatGPT.png" class="avatar mr10"/><div class="time-remark-wrapper"><span class="time">${getNowTime()}</span><div class="message bot-message" style="display: inline-block;">${parsedHTML}</div></div></div>`chatMessages.innerHTML += messageHTML;}// 定义发送消息到服务器的函数function sendToServer(message) {// formateMarkdown(//     '好的,下面是用javascript实现冒泡排序的代码:\n\n```js\nfunction bubbleSort(arr) {\n  const len = arr.length;\n  for (let i = 0; i &lt; len; i++) {\n    for (let j = 0; j &lt; len - 1 - i; j++) {\n      if (arr[j] &gt; arr[j+1]) {\n        // 相邻元素两两对比\n        [arr[j], arr[j+1]] = [arr[j+1], arr[j]]; // 交换两个元素\n      } \n    }\n  }\n  return arr;\n}\n\n// 测试\nconst arr = [5, 4, 3, 2, 1];\nconsole.log(bubbleSort(arr)); // [1, 2, 3, 4, 5]\n```\n\n主要思路是:\n\n1. 从第一个元素开始,依次与后面的元素进行两两比较\n2. 如果顺序相反,则交换两个元素的位置\n3. 一轮比较下来,可以保证最后一个元素是最大的\n4. 下一轮继续比较到倒数第二个元素,以此类推\n5. 直到数组有序\n\n冒泡排序的时间复杂度为 O(n^2),是一种简单但不是很高效的排序算法。"'// )// 使用AJAX发送POST请求const xhr = new XMLHttpRequest();xhr.open("POST", "/chat", true);xhr.setRequestHeader("Content-Type", "application/json");xhr.onreadystatechange = function () {if (xhr.readyState === XMLHttpRequest.DONE && xhr.status === 200) {try {// 解析服务器响应const response = JSON.parse(xhr.responseText);// 提取服务器回复的消息const botMessage = response.msg;// 创建回复消息的元素，并添加到聊天框formateMarkdown(botMessage);} catch (error) {console.error("Error parsing JSON response:", error);}}};xhr.send(JSON.stringify({message}));}// 绑定发送按钮的点击事件sendButton.addEventListener("click", sendMessage);</script><style>body {font-size: 14px;}html,body {width: 100%;height: 100%;padding: 0;margin: 0;display: flex;flex-direction: column;align-items: center;}.time-remark-wrapper {display: flex;flex-direction: column;}.mr10 {margin-right: 10px;}.time {color: rgba(180, 187, 196);font-size: 12px;margin-bottom: 5px;}.title {display: flex;justify-content: center;text-align: center;font-size: 16px;padding: 15px;}#chat-messages {padding: 30px;}#chat-container {width: 1000px;margin: 0 auto;border-width: 1px;border-style: solid;border-color: #e5e7eb;border-radius: 8px;height: calc(100% - 150px);box-sizing: content-box;position: relative;overflow: auto;}.message-input-wrapper {position: fixed;bottom: 20px;display: flex;align-items: center;max-width: 1280px;margin: 0 auto;width: 1000px;/* background-color: #fff; */}.flex-right .time-remark-wrapper {align-items: flex-end;}.message {padding: 8px;border-radius: 8px;}textarea:focus {outline: none;}#message-input {border: 1px solid #e5e7eb;border-top-left-radius: 4px;border-bottom-left-radius: 4px;padding: 10px;flex: 1;}#message-input>textarea {flex: 1;}.user-message {background-color: rgb(210, 249, 209);text-align: right;margin-bottom: 20px;padding: 10px 15px;}.avatar {width: 32px;height: 32px;border-radius: 50%;}.flex-right {display: flex;justify-content: end;}.flex-left {display: flex;justify-content: start;}#send-button {background: #0c7a43;color: #fff;padding: 16px 15px;border-top-right-radius: 4px;border-bottom-right-radius: 4px;cursor: pointer;}.bot-message {background-color: rgb(244, 246, 248);margin-bottom: 20px;padding: 10px 15px;}.hljs {background: #fff;border-radius: 8px;}</style>
</body></html>

实现思路：
1、因为GPT请求返回来得数据是markdown数据，主要是用marked解析markdown数据格式

marked.parse(message);

2、然后用highlight实现代码的高亮显示

https://www.jsdelivr.com/
在这里插入图片描述
最开始这里不晓得怎么引入，然后用

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/highlight.js/styles/default.min.css">
<script src="https://cdn.jsdelivr.net/npm/highlight.js"></script>

提示没有require

然后下载了文档
在这里插入图片描述
在下载的文档中看README.md 文档

根据此链接，找到了正确的js文件和css样式文件