前端展示接受springboot Flux数据demo

原创于 2025-11-24 14:48:23 发布 · 340 阅读
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<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>AI聊天助手</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }

        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .chat-container {
            width: 100%;
            max-width: 800px;
            height: 80vh;
            background-color: white;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }

        .chat-header {
            background: linear-gradient(90deg, #4e54c8, #8f94fb);
            color: white;
            padding: 20px;
            text-align: center;
            font-size: 1.5rem;
            font-weight: 600;
        }

        .chat-messages {
            flex: 1;
            padding: 20px;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .message {
            max-width: 80%;
            padding: 12px 18px;
            border-radius: 18px;
            line-height: 1.5;
            position: relative;
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .user-message {
            align-self: flex-end;
            background-color: #4e54c8;
            color: white;
            border-bottom-right-radius: 4px;
        }

        .ai-message {
            align-self: flex-start;
            background-color: #f0f2f5;
            color: #333;
            border-bottom-left-radius: 4px;
        }

        .typing-indicator {
            display: inline-block;
            padding: 12px 18px;
            background-color: #f0f2f5;
            border-radius: 18px;
            border-bottom-left-radius: 4px;
            align-self: flex-start;
        }

        .typing-dots {
            display: flex;
            gap: 4px;
        }

        .typing-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: #999;
            animation: typingAnimation 1.4s infinite ease-in-out;
        }

        .typing-dot:nth-child(1) { animation-delay: -0.32s; }
        .typing-dot:nth-child(2) { animation-delay: -0.16s; }

        @keyframes typingAnimation {
            0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; }
            40% { transform: scale(1); opacity: 1; }
        }

        .chat-input-container {
            padding: 20px;
            border-top: 1px solid #eee;
            display: flex;
            gap: 10px;
        }

        .chat-input {
            flex: 1;
            padding: 12px 18px;
            border: 1px solid #ddd;
            border-radius: 24px;
            outline: none;
            font-size: 1rem;
            transition: border-color 0.3s;
        }

        .chat-input:focus {
            border-color: #4e54c8;
        }

        .send-button {
            background: linear-gradient(90deg, #4e54c8, #8f94fb);
            color: white;
            border: none;
            border-radius: 50%;
            width: 50px;
            height: 50px;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .send-button:hover {
            transform: scale(1.05);
            box-shadow: 0 4px 12px rgba(78, 84, 200, 0.3);
        }

        .send-button:active {
            transform: scale(0.98);
        }

        .send-button svg {
            width: 24px;
            height: 24px;
        }

        .error-message {
            background-color: #ffebee;
            color: #c62828;
            padding: 12px 18px;
            border-radius: 8px;
            margin: 10px 20px;
            text-align: center;
        }

        /* 滚动条样式 */
        .chat-messages::-webkit-scrollbar {
            width: 6px;
        }

        .chat-messages::-webkit-scrollbar-track {
            background: #f1f1f1;
            border-radius: 10px;
        }

        .chat-messages::-webkit-scrollbar-thumb {
            background: #c1c1c1;
            border-radius: 10px;
        }

        .chat-messages::-webkit-scrollbar-thumb:hover {
            background: #a8a8a8;
        }

        @media (max-width: 600px) {
            .chat-container {
                height: 90vh;
            }

            .message {
                max-width: 90%;
            }
        }
    </style>
</head>
<body>
<div class="chat-container">
    <div class="chat-header">
        AI聊天助手
    </div>
    <div class="chat-messages" id="chatMessages">
        <div class="message ai-message">
            您好！我是AI助手，有什么可以帮您的吗？
        </div>
    </div>
    <div class="chat-input-container">
        <input type="text" class="chat-input" id="messageInput" placeholder="输入您的问题..." autocomplete="off">
        <button class="send-button" id="sendButton">
            <svg viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
                <path d="M22 2L11 13" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                <path d="M22 2L15 22L11 13L2 9L22 2Z" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
            </svg>
        </button>
    </div>
</div>

<script>
    document.addEventListener('DOMContentLoaded', function() {
        const chatMessages = document.getElementById('chatMessages');
        const messageInput = document.getElementById('messageInput');
        const sendButton = document.getElementById('sendButton');

        // 添加消息到聊天区域
        function addMessage(content, isUser = false) {
            const messageDiv = document.createElement('div');
            messageDiv.className = `message ${isUser ? 'user-message' : 'ai-message'}`;
            messageDiv.textContent = content;
            chatMessages.appendChild(messageDiv);
            scrollToBottom();
            return messageDiv;
        }

        // 显示正在输入指示器
        function showTypingIndicator() {
            const indicatorDiv = document.createElement('div');
            indicatorDiv.className = 'typing-indicator';
            indicatorDiv.id = 'typingIndicator';

            const dotsDiv = document.createElement('div');
            dotsDiv.className = 'typing-dots';

            for (let i = 0; i < 3; i++) {
                const dot = document.createElement('div');
                dot.className = 'typing-dot';
                dotsDiv.appendChild(dot);
            }

            indicatorDiv.appendChild(dotsDiv);
            chatMessages.appendChild(indicatorDiv);
            scrollToBottom();

            return indicatorDiv;
        }

        // 移除正在输入指示器
        function removeTypingIndicator() {
            const indicator = document.getElementById('typingIndicator');
            if (indicator) {
                indicator.remove();
            }
        }

        // 显示错误消息
        function showError(message) {
            const errorDiv = document.createElement('div');
            errorDiv.className = 'error-message';
            errorDiv.textContent = message;
            chatMessages.appendChild(errorDiv);
            scrollToBottom();

            // 5秒后自动移除错误消息
            setTimeout(() => {
                errorDiv.remove();
            }, 5000);
        }

        // 滚动到底部
        function scrollToBottom() {
            chatMessages.scrollTop = chatMessages.scrollHeight;
        }

        // 发送消息到后端
        async function sendMessage() {
            const message = messageInput.value.trim();
            if (!message) return;

            // 添加用户消息
            addMessage(message, true);

            // 清空输入框
            messageInput.value = '';

            // 显示正在输入指示器
            const typingIndicator = showTypingIndicator();

            try {
                // 发送POST请求到后端
                const response = await fetch('http://10.161.107.96:8080/ai/chat', {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json',
                    },
                    body: JSON.stringify({
                        message: message
                    })
                });

                if (!response.ok) {
                    throw new Error(`HTTP error! status: ${response.status}`);
                }

                // 移除正在输入指示器
                removeTypingIndicator();

                // 处理流式响应
                const reader = response.body.getReader();
                const decoder = new TextDecoder();

                // 创建AI消息容器
                const aiMessageDiv = document.createElement('div');
                aiMessageDiv.className = 'message ai-message';
                chatMessages.appendChild(aiMessageDiv);

                let aiMessageContent = '';

                while (true) {
                    const { done, value } = await reader.read();

                    if (done) {
                        break;
                    }

                    // 解码并添加内容
                    const chunk = decoder.decode(value, { stream: true });
                    aiMessageContent += chunk;
                    aiMessageDiv.textContent = aiMessageContent;

                    // 滚动到底部
                    scrollToBottom();
                }

            } catch (error) {
                console.error('Error:', error);
                removeTypingIndicator();
                showError('抱歉，发生错误：' + error.message);
            }
        }

        // 发送按钮点击事件
        sendButton.addEventListener('click', sendMessage);

        // 输入框回车事件
        messageInput.addEventListener('keypress', function(e) {
            if (e.key === 'Enter') {
                sendMessage();
            }
        });

        // 初始聚焦到输入框
        messageInput.focus();
    });
</script>
</body>
</html>