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static/ai-chat.html
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293
static/ai-chat.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Title</title>
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<style>
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/* CSS样式 */
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body {
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font-family: Arial, sans-serif;
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margin: 0;
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padding: 0;
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}
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.chat-container {
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max-width: 600px;
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margin: 20px auto;
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border: 1px solid #ccc;
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border-radius: 5px;
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padding: 10px;
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}
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.chat-box {
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height: 300px;
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overflow-y: scroll;
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border-bottom: 1px solid #ccc;
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padding-bottom: 10px;
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}
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#user-input {
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width: calc(100% - 100px);
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padding: 8px;
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margin-top: 10px;
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border-radius: 5px;
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border: 1px solid #ccc;
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}
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button {
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padding: 8px 15px;
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margin-left: 10px;
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border-radius: 5px;
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}
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.message {
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margin-bottom: 10px;
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}
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.sender {
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font-weight: bold;
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}
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</style>
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</head>
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<body>
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<div class="chat-container" id="chat-container">
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<div class="chat-box" id="chat-box">
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<!-- 聊天消息将会在这里显示 -->
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</div>
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<input type="text" id="user-input" placeholder="Type a message...">
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<button id="send-button" onclick="sendMessage()">Send</button>
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</div>
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</body>
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<script>
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// --------------------init--------------------------------------
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const API_KEY = "你的key";
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const ENDPOINT = "https://api.openai.com/v1/chat/completions";
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// 获取输入框元素
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const userInput = document.getElementById('user-input');
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// 监听输入框的回车事件
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userInput.addEventListener('keydown', (event) => {
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if (event.key === "Enter") {
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// 处理回车事件
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sendMessage();
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}
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});
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// 历史消息
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const messages = [];
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// 等待
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let waiting = false;
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// -------------------------------------------------------------------------------------------------
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/**
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* 发送消息
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*/
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function sendMessage() {
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// 等待
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if (waiting) {
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alert('等待回复中');
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return;
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}
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waiting = true;
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// 获取到用户的输入
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const message = userInput.value.trim();
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// 判断用户输入是否为空
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if (message === '') {
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alert('请输入内容');
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waiting = false;
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return;
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}
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// 将用户输入显示在聊天框中
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displayUserMessage(message);
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userInput.value = '';
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// 创建ChatGPT的回复，并获取到显示回复的容器
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const htmlSpanElement = displayChatGPTMessageAndGetContainer();
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// 发送消息到ChatGPT
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addMessage("user", message);
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const body = JSON.stringify({model: "gpt-3.5-turbo", messages: messages, stream: true});
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ssePost(
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// 请求地址
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ENDPOINT,
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// 请求头
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{"Content-Type": "application/json", Authorization: "Bearer " + API_KEY },
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// params，这里没有参数
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{},
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// body
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body,
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// 收到事件时的回调。这里将事件的data显示在htmlSpanElement中
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(event) => {const content = getContent(event.data); if (content) htmlSpanElement.innerHTML += content},
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// 结束时的回调。1.将消息添加到历史消息中 2.将等待状态设置为false
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() => {addMessage("assistant", htmlSpanElement.innerHTML); waiting = false},
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// 发生错误时的回调
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(error) => {console.log(error)}
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);
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}
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// 匹配回复内容的正则表达式
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const contentPattern = /"content":"(.*?)"}/;
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/**
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* 获取回复内容
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* @param data 数据
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* @returns 回复内容
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*/
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function getContent(data) {
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const match = data.match(contentPattern);
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if (match) {
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return match[1];
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} else {
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return null;
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}
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}
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/**
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* 将消息添加到历史消息中
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* @param role 角色。user或者assistant
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* @param content 消息内容
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*/
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function addMessage(role, content) {
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messages.push({role: role, content: content});
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}
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const chatBox = document.getElementById('chat-box');
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/**
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* 将用户输入显示在聊天框中
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* @param text 用户的输入
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*/
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function displayUserMessage(text) {
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const messageDiv = document.createElement('div');
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messageDiv.classList.add('message');
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const senderSpan = document.createElement('span');
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senderSpan.classList.add('sender');
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senderSpan.textContent = 'You: ';
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const textSpan = document.createElement('span');
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textSpan.textContent = text;
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messageDiv.appendChild(senderSpan);
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messageDiv.appendChild(textSpan);
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chatBox.appendChild(messageDiv);
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chatBox.scrollTop = chatBox.scrollHeight;
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}
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/**
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* 将ChatGPT的回复显示在聊天框中
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* @returns {HTMLSpanElement}
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*/
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function displayChatGPTMessageAndGetContainer() {
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const messageDiv = document.createElement('div');
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messageDiv.classList.add('message');
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const senderSpan = document.createElement('span');
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senderSpan.classList.add('sender');
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senderSpan.textContent = 'ChatGPT: ';
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const textSpan = document.createElement('span');
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messageDiv.appendChild(senderSpan);
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messageDiv.appendChild(textSpan);
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chatBox.appendChild(messageDiv);
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chatBox.scrollTop = chatBox.scrollHeight;
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return textSpan;
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}
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function objectToQueryString(obj) {
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return Object.keys(obj)
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.map(key => `${encodeURIComponent(key)}=${encodeURIComponent(obj[key])}`)
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.join('&');
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}
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/**
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* 发送POST请求并处理sse事件
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* @param url 请求地址
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* @param headers 请求头
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* @param params 请求参数
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* @param body 请求体
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* @param onEvent 收到事件时的回调
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* @param onEnd 结束时的回调
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* @param onError 发生错误时的回调
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*/
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function ssePost(url, headers, params, body, onEvent, onEnd, onError) {
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// 拼接url
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if (Object.keys(params).length > 0) {
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url += '?' + objectToQueryString(params);
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}
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// 发送请求
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fetch(url, {
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method: 'POST',
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headers: headers,
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body: body,
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}).then(async response => {
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// 判断响应状态码
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if (!response.ok) {
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onError(new Error('Network response was not ok'));
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return;
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}
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// 异步处理响应流
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const reader = response.body.getReader();
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// 响应缓冲区
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let buffer = '';
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// 响应的前一个字符，用于判断一个事件是否结束
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let before = '';
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// 循环读取响应流，直到响应流结束
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while (true) {
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// 读取响应流
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const {done, value} = await reader.read();
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// 响应流结束
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if (done) {
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break;
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}
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// 将响应流转换为文本
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const text = new TextDecoder().decode(value);
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// 遍历文本
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for (const element of text) {
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// 判断是否为事件结束。连续两个'\n'表示一个事件结束
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if (element === '\n' && before === '\n') {
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// 将事件中的字段分割出来。例如：event: message \n data: hello world \n id: 123 \n\n
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const eventAndData = buffer.substring(0, buffer.length - 1).split('\n');
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// 将事件中的字段转换为对象, 例如：{event: message, data: hello world, id: 123}
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const resultObject = {};
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eventAndData.forEach(pair => {
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const colonIndex = pair.indexOf(':');
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if (colonIndex === -1) {
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return;
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}
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resultObject[pair.substring(0, colonIndex)] = pair.substring(colonIndex + 2);
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});
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// 回调
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onEvent(resultObject);
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// 清空缓冲区
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buffer = '';
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} else
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// 不是事件结束，将字符添加到缓冲区
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{
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before = element;
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buffer += element;
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}
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}
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}
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// 结束时的回调
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onEnd();
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}).catch(error => {
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// 发生错误时的回调
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onError(error);
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})
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}
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</script>
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</html>
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@ -191,7 +191,7 @@
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history: messageHistory
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};
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$.ajax({
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url: "http://127.0.0.1:8081/assistant",
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url: "http://127.0.0.1:11434/api/chat",
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type: "POST",
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contentType: "application/json",
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dataType: "json",
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