一、实现效果
可以保存聊天记录与会话记录
二、代码实现
2.1 后端代码
pom.xml
<!-- 继承Spring Boot父POM，提供默认依赖管理 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.4.3</version> <!-- Spring Boot版本 -->
<relativePath/> <!-- 优先从本地仓库查找 -->
</parent>
<!-- 自定义属性 -->
<properties>
<java.version>17</java.version> <!-- JDK版本要求 -->
<spring-ai.version>1.0.0-M6</spring-ai.version> <!-- Spring AI里程碑版本 -->
</properties>
<!-- 项目依赖 -->
<dependencies>
<!-- Spring Boot Web支持 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- AI相关依赖 -->
<dependency>
<groupId>org.springframework.ai</groupId>
<artifactId>spring-ai-ollama-spring-boot-starter</artifactId> <!-- Ollama集成 -->
</dependency>
<dependency>
<groupId>org.springframework.ai</groupId>
<artifactId>spring-ai-openai-spring-boot-starter</artifactId> <!-- OpenAI集成 -->
</dependency>
<!-- 开发工具 -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.22</version> <!-- 注解简化代码 -->
<scope>provided</scope> <!-- 编译期使用 -->
</dependency>
</dependencies>
<!-- 依赖管理（统一Spring AI家族版本） -->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.ai</groupId>
<artifactId>spring-ai-bom</artifactId>
<version>${spring-ai.version}</version>
<type>pom</type>
<scope>import</scope> <!-- 导入BOM管理版本 -->
</dependency>
</dependencies>
</dependencyManagement>application.ymal
可选择ollama或者openai其一进行大模型配置
spring:
application:
name: spring-ai-dome # 应用名称（用于服务发现和监控）
# AI服务配置（多引擎支持）
ai:
# Ollama配置（本地大模型引擎）
ollama:
base-url: http://localhost:11434 # Ollama服务地址（默认端口11434）
chat:
model: deepseek-r1:7b # 使用的模型名称（7B参数的本地模型）
# 阿里云OpenAI兼容模式配置
openai:
base-url: https://dashscope.aliyuncs.com/compatible-mode # 阿里云兼容API端点
api-key: ${OPENAI_API_KEY} # 从环境变量读取API密钥（安全建议）
chat:
options:
model: qwen-max-latest # 通义千问最新版本模型
# 日志级别配置
logging:
level:
org.springframework.ai: debug # 打印Spring AI框架调试日志
com.itheima.ai: debug # 打印业务代码调试日志ChatConfiguration配置类
InMemoryChatMemory实现本地聊天记录存储
/**
* AI核心配置类
*
* 核心组件：
* 1. 聊天记忆管理（ChatMemory）
* 2. 多种场景的ChatClient实例
*/
@Configuration
public class ChatConfiguration {
/**
* 内存式聊天记忆存储
* @return InMemoryChatMemory 实例
*
* 作用：保存对话上下文，实现多轮对话能力
* 实现原理：基于ConcurrentHashMap的线程安全实现
*/
@Bean
public ChatMemory chatMemory() {
return new InMemoryChatMemory();
}
/**
* 通用聊天客户端
* @param model 阿里云OpenAI模型
* @param chatMemory 聊天记忆
* @return 配置好的ChatClient
*
* 默认配置：
* - 使用qwen-omni-turbo模型
* - 设定AI人格为"小小"
* - 启用日志记录和记忆功能
*/
@Bean
public ChatClient chatClient(AlibabaOpenAiChatModel model, ChatMemory chatMemory) {
return ChatClient
.builder(model)
.defaultOptions(ChatOptions.builder().model("qwen-omni-turbo").build())
.defaultSystem("你是一个热心、聪明、全知的智能助手，你的名字叫小小，请以小小的身份和语气回答问题。")
.defaultAdvisors(
new SimpleLoggerAdvisor(), // 日志记录
new MessageChatMemoryAdvisor(chatMemory) // 记忆功能
)
.build();
}
}ChatController对话类
会话id由前端进行生成并传输过来，当然也可后端自己生成并且存入数据库，不过这里由于是简单的实现，由本地Map实现会话及信息的存储
import lombok.RequiredArgsConstructor;
import org.springframework.ai.chat.client.ChatClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Flux;
import static org.springframework.ai.chat.client.advisor.AbstractChatMemoryAdvisor.CHAT_MEMORY_CONVERSATION_ID_KEY;
/**
* AI聊天对话控制器
* 功能：提供基于大模型的流式对话接口
*
* 技术特性：
* - 支持多轮对话记忆（通过chatId区分会话）
* - 响应式流式返回（Flux<String>）
* - 自动会话历史记录
*
* 访问方式：GET /ai/chat?prompt=问题&chatId=会话ID
*/
@RequiredArgsConstructor // Lombok自动生成构造函数（依赖注入）
@RestController
@RequestMapping("/ai") // 基础路径
public class ChatController {
private final ChatClient chatClient; // Spring AI聊天客户端
private final ChatHistoryRepository chatHistoryRepository; // 会话历史存储
/**
* 流式聊天接口
* @param prompt 用户输入的问题/指令
* @param chatId 会话唯一标识（用于多轮对话）
* @return Flux<String> 流式响应（SSE协议）
*
* 处理流程：
* 1. 记录会话ID到数据库
* 2. 通过ChatClient发起流式请求
* 3. 实时返回模型生成内容
*/
@RequestMapping(value = "/chat", produces = "text/html;charset=utf-8")
public Flux<String> chat(
@RequestParam("prompt") String prompt,
@RequestParam("chatId") String chatId) {
// 会话持久化（可扩展为保存完整对话历史）
chatHistoryRepository.save("chat", chatId);
// 发起流式对话请求
return textChat(prompt, chatId);
}
/**
* 核心对话方法（私有）
* @param prompt 用户输入
* @param chatId 会话ID
* @return 模型响应流
*
* 技术细节：
* - 通过CHAT_MEMORY_CONVERSATION_ID_KEY绑定会话记忆
* - content()方法自动转换为流式响应
*/
private Flux<String> textChat(String prompt, String chatId) {
return chatClient.prompt()
.user(prompt) // 设置用户输入
.advisors(a -> a.param(CHAT_MEMORY_CONVERSATION_ID_KEY, chatId)) // 关联会话记忆
.stream() // 启用流式模式
.content(); // 获取纯文本内容流
}
}ChatHistoryController会话历史类
实现本地Map存储chat类型与所有会话历史的对应关系，找到会话后就可用根据聊天记忆ChatMemory找到聊天历史
import lombok.RequiredArgsConstructor;
import org.springframework.ai.chat.memory.ChatMemory;
import org.springframework.ai.chat.messages.Message;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
@RequiredArgsConstructor
@RestController
@RequestMapping("/ai/history")
public class ChatHistoryController {
private final ChatHistoryRepository chatHistoryRepository;
private final ChatMemory chatMemory;
@GetMapping("/{type}")
public List<String> getChatIds(@PathVariable("type") String type) {
return chatHistoryRepository.getChatIds(type);
}
@GetMapping("/{type}/{chatId}")
public List<MessageVO> getChatHistory(@PathVariable("type") String type, @PathVariable("chatId") String chatId) {
List<Message> messages = chatMemory.get(chatId, Integer.MAX_VALUE);
if(messages == null) {
return List.of();
}
// 转换成VO
return messages.stream().map(MessageVO::new).toList();
}
}
ChatHistoryRepository业务接口
import java.util.List;
public interface ChatHistoryRepository {
/**
* 保存会话记录
* @param type 业务类型，如：chat、service、pdf
* @param chatId 会话ID
*/
void save(String type, String chatId);
/**
* 获取会话ID列表
* @param type 业务类型，如：chat、service、pdf
* @return 会话ID列表
*/
List<String> getChatIds(String type);
}
InMemoryChatHistoryRepository实现类
@Slf4j
@Component
@RequiredArgsConstructor
public class InMemoryChatHistoryRepository implements ChatHistoryRepository {
// 会话chatId存储Map
private Map<String, List<String>> chatHistory;
private final ChatMemory chatMemory;
// 保存会话ID
@Override
public void save(String type, String chatId) {
/*if (!chatHistory.containsKey(type)) {
chatHistory.put(type, new ArrayList<>());
}
List<String> chatIds = chatHistory.get(type);*/
List<String> chatIds = chatHistory.computeIfAbsent(type, k -> new ArrayList<>());
if (chatIds.contains(chatId)) {
return;
}
chatIds.add(chatId);
}
// 获取所有会话id
@Override
public List<String> getChatIds(String type) {
/*List<String> chatIds = chatHistory.get(type);
return chatIds == null ? List.of() : chatIds;*/
return chatHistory.getOrDefault(type, List.of());
}
}
MessageVO返回实体类
根据ChatMemory中存储的Message可知有四种类型，则根据Message来示例VO对象
USER("user"),
ASSISTANT("assistant"),
SYSTEM("system"),
TOOL("tool");
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.ai.chat.messages.Message;
@NoArgsConstructor
@Data
public class MessageVO {
private String role;
private String content;
public MessageVO(Message message) {
switch (message.getMessageType()) {
case USER:
role = "user";
break;
case ASSISTANT:
role = "assistant";
break;
default:
role = "";
break;
}
this.content = message.getText();
}
}
2.2 前端代码
可以根据这些代码与接口让Cursor生成一个仿deepseek页面即可实现，或者根据下列代码修改实现(实现效果中的代码)
AIChat.vue
<template>
<div class="ai-chat" :class="{ 'dark': isDark }">
<div class="chat-container">
<div class="sidebar">
<div class="history-header">
<h2>聊天记录</h2>
<button class="new-chat" @click="startNewChat">
<PlusIcon class="icon" />
新对话
</button>
</div>
<div class="history-list">
<div
v-for="chat in chatHistory"
:key="chat.id"
class="history-item"
:class="{ 'active': currentChatId === chat.id }"
@click="loadChat(chat.id)"
>
<ChatBubbleLeftRightIcon class="icon" />
<span class="title">{{ chat.title || '新对话' }}</span>
</div>
</div>
</div>
<div class="chat-main">
<div class="messages" ref="messagesRef">
<ChatMessage
v-for="(message, index) in currentMessages"
:key="index"
:message="message"
:is-stream="isStreaming && index === currentMessages.length - 1"
/>
</div>
<div class="input-area">
<div v-if="selectedFiles.length > 0" class="selected-files">
<div v-for="(file, index) in selectedFiles" :key="index" class="file-item">
<div class="file-info">
<DocumentIcon class="icon" />
<span class="file-name">{{ file.name }}</span>
<span class="file-size">({{ formatFileSize(file.size) }})</span>
</div>
<button class="remove-btn" @click="removeFile(index)">
<XMarkIcon class="icon" />
</button>
</div>
</div>
<div class="input-row">
<div class="file-upload">
<input
type="file"
ref="fileInput"
@change="handleFileUpload"
accept="image/*,audio/*,video/*"
multiple
class="hidden"
>
<button
class="upload-btn"
@click="triggerFileInput"
:disabled="isStreaming"
>
<PaperClipIcon class="icon" />
</button>
</div>
<textarea
v-model="userInput"
@keydown.enter.prevent="sendMessage"
:placeholder="getPlaceholder()"
rows="1"
ref="inputRef"
></textarea>
<button
class="send-button"
@click="sendMessage"
:disabled="isStreaming || (!userInput.trim() && !selectedFiles.length)"
>
<PaperAirplaneIcon class="icon" />
</button>
</div>
</div>
</div>
</div>
</div>
</template>
<script setup>
import { ref, onMounted, nextTick } from 'vue'
import { useDark } from '@vueuse/core'
import {
ChatBubbleLeftRightIcon,
PaperAirplaneIcon,
PlusIcon,
PaperClipIcon,
DocumentIcon,
XMarkIcon
} from '@heroicons/vue/24/outline'
import ChatMessage from '../components/ChatMessage.vue'
import { chatAPI } from '../services/api'
const isDark = useDark()
const messagesRef = ref(null)
const inputRef = ref(null)
const userInput = ref('')
const isStreaming = ref(false)
const currentChatId = ref(null)
const currentMessages = ref([])
const chatHistory = ref([])
const fileInput = ref(null)
const selectedFiles = ref([])
// 自动调整输入框高度
const adjustTextareaHeight = () => {
const textarea = inputRef.value
if (textarea) {
textarea.style.height = 'auto'
textarea.style.height = textarea.scrollHeight + 'px'
}else{
textarea.style.height = '50px'
}
}
// 滚动到底部
const scrollToBottom = async () => {
await nextTick()
if (messagesRef.value) {
messagesRef.value.scrollTop = messagesRef.value.scrollHeight
}
}
// 文件类型限制
const FILE_LIMITS = {
image: {
maxSize: 10 * 1024 * 1024, // 单个文件 10MB
maxFiles: 3, // 最多 3 个文件
description: '图片文件'
},
audio: {
maxSize: 10 * 1024 * 1024, // 单个文件 10MB
maxDuration: 180, // 3分钟
maxFiles: 3, // 最多 3 个文件
description: '音频文件'
},
video: {
maxSize: 150 * 1024 * 1024, // 单个文件 150MB
maxDuration: 40, // 40秒
maxFiles: 3, // 最多 3 个文件
description: '视频文件'
}
}
// 触发文件选择
const triggerFileInput = () => {
fileInput.value?.click()
}
// 检查文件是否符合要求
const validateFile = async (file) => {
const type = file.type.split('/')[0]
const limit = FILE_LIMITS[type]
if (!limit) {
return { valid: false, error: '不支持的文件类型' }
}
if (file.size > limit.maxSize) {
return { valid: false, error: `文件大小不能超过${limit.maxSize / 1024 / 1024}MB` }
}
if ((type === 'audio' || type === 'video') && limit.maxDuration) {
try {
const duration = await getMediaDuration(file)
if (duration > limit.maxDuration) {
return {
valid: false,
error: `${type === 'audio' ? '音频' : '视频'}时长不能超过${limit.maxDuration}秒`
}
}
} catch (error) {
return { valid: false, error: '无法读取媒体文件时长' }
}
}
return { valid: true }
}
// 获取媒体文件时长
const getMediaDuration = (file) => {
return new Promise((resolve, reject) => {
const element = file.type.startsWith('audio/') ? new Audio() : document.createElement('video')
element.preload = 'metadata'
element.onloadedmetadata = () => {
resolve(element.duration)
URL.revokeObjectURL(element.src)
}
element.onerror = () => {
reject(new Error('无法读取媒体文件'))
URL.revokeObjectURL(element.src)
}
element.src = URL.createObjectURL(file)
})
}
// 修改文件上传处理函数
const handleFileUpload = async (event) => {
const files = Array.from(event.target.files || [])
if (!files.length) return
// 检查所有文件类型是否一致
const firstFileType = files[0].type.split('/')[0]
const hasInconsistentType = files.some(file => file.type.split('/')[0] !== firstFileType)
if (hasInconsistentType) {
alert('请选择相同类型的文件（图片、音频或视频）')
event.target.value = ''
return
}
// 验证所有文件
for (const file of files) {
const { valid, error } = await validateFile(file)
if (!valid) {
alert(error)
event.target.value = ''
selectedFiles.value = []
return
}
}
// 检查文件总大小
const totalSize = files.reduce((sum, file) => sum + file.size, 0)
const limit = FILE_LIMITS[firstFileType]
if (totalSize > limit.maxSize * 3) { // 允许最多3个文件的总大小
alert(`${firstFileType === 'image' ? '图片' : firstFileType === 'audio' ? '音频' : '视频'}文件总大小不能超过${(limit.maxSize * 3) / 1024 / 1024}MB`)
event.target.value = ''
selectedFiles.value = []
return
}
selectedFiles.value = files
}
// 修改文件输入提示
const getPlaceholder = () => {
if (selectedFiles.value.length > 0) {
const type = selectedFiles.value[0].type.split('/')[0]
const desc = FILE_LIMITS[type].description
return `已选择 ${selectedFiles.value.length} 个${desc}，可继续输入消息...`
}
return '输入消息，可上传图片、音频或视频...'
}
// 修改发送消息函数
const sendMessage = async () => {
if (isStreaming.value) return
if (!userInput.value.trim() && !selectedFiles.value.length) return
const messageContent = userInput.value.trim()
// 添加用户消息
const userMessage = {
role: 'user',
content: messageContent,
timestamp: new Date()
}
currentMessages.value.push(userMessage)
// 清空输入
userInput.value = ''
adjustTextareaHeight()
await scrollToBottom()
// 准备发送数据
const formData = new FormData()
if (messageContent) {
formData.append('prompt', messageContent)
}
selectedFiles.value.forEach(file => {
formData.append('files', file)
})
// 添加助手消息占位
const assistantMessage = {
role: 'assistant',
content: '',
timestamp: new Date()
}
currentMessages.value.push(assistantMessage)
isStreaming.value = true
try {
const reader = await chatAPI.sendMessage(formData, currentChatId.value)
const decoder = new TextDecoder('utf-8')
let accumulatedContent = '' // 添加累积内容变量
while (true) {
try {
const { value, done } = await reader.read()
if (done) break
// 累积新内容
accumulatedContent += decoder.decode(value) // 追加新内容
await nextTick(() => {
// 更新消息，使用累积的内容
const updatedMessage = {
...assistantMessage,
content: accumulatedContent // 使用累积的内容
}
const lastIndex = currentMessages.value.length - 1
currentMessages.value.splice(lastIndex, 1, updatedMessage)
})
await scrollToBottom()
} catch (readError) {
console.error('读取流错误:', readError)
break
}
}
} catch (error) {
console.error('发送消息失败:', error)
assistantMessage.content = '抱歉，发生了错误，请稍后重试。'
} finally {
isStreaming.value = false
selectedFiles.value = [] // 清空已选文件
fileInput.value.value = '' // 清空文件输入
await scrollToBottom()
}
}
// 加载特定对话
const loadChat = async (chatId) => {
currentChatId.value = chatId
try {
const messages = await chatAPI.getChatMessages(chatId, 'chat')
currentMessages.value = messages
} catch (error) {
console.error('加载对话消息失败:', error)
currentMessages.value = []
}
}
// 加载聊天历史
const loadChatHistory = async () => {
try {
const history = await chatAPI.getChatHistory('chat')
chatHistory.value = history || []
if (history && history.length > 0) {
await loadChat(history[0].id)
} else {
startNewChat()
}
} catch (error) {
console.error('加载聊天历史失败:', error)
chatHistory.value = []
startNewChat()
}
}
// 开始新对话
const startNewChat = () => {
const newChatId = Date.now().toString()
currentChatId.value = newChatId
currentMessages.value = []
// 添加新对话到聊天历史列表
const newChat = {
id: newChatId,
title: `对话 ${newChatId.slice(-6)}`
}
chatHistory.value = [newChat, ...chatHistory.value] // 将新对话添加到列表开头
}
// 格式化文件大小
const formatFileSize = (bytes) => {
if (bytes < 1024) return bytes + ' B'
if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB'
return (bytes / (1024 * 1024)).toFixed(1) + ' MB'
}
// 移除文件
const removeFile = (index) => {
selectedFiles.value = selectedFiles.value.filter((_, i) => i !== index)
if (selectedFiles.value.length === 0) {
fileInput.value.value = '' // 清空文件输入
}
}
onMounted(() => {
loadChatHistory()
adjustTextareaHeight()
})
</script>
<style scoped lang="scss">
.ai-chat {
position: fixed; // 修改为固定定位
top: 64px; // 导航栏高度
left: 0;
right: 0;
bottom: 0;
display: flex;
background: var(--bg-color);
overflow: hidden; // 防止页面滚动
.chat-container {
flex: 1;
display: flex;
max-width: 1800px;
width: 100%;
margin: 0 auto;
padding: 1.5rem 2rem;
gap: 1.5rem;
height: 100%; // 确保容器占满高度
overflow: hidden; // 防止容器滚动
}
.sidebar {
width: 300px;
display: flex;
flex-direction: column;
background: rgba(255, 255, 255, 0.95);
backdrop-filter: blur(10px);
border-radius: 1rem;
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
.history-header {
flex-shrink: 0; // 防止头部压缩
padding: 1rem;
display: flex;
justify-content: space-between;
align-items: center;
h2 {
font-size: 1.25rem;
}
.new-chat {
display: flex;
align-items: center;
gap: 0.5rem;
padding: 0.5rem 1rem;
border-radius: 0.5rem;
background: #007CF0;
color: white;
border: none;
cursor: pointer;
transition: background-color 0.3s;
&:hover {
background: #0066cc;
}
.icon {
width: 1.25rem;
height: 1.25rem;
}
}
}
.history-list {
flex: 1;
overflow-y: auto; // 允许历史记录滚动
padding: 0 1rem 1rem;
.history-item {
display: flex;
align-items: center;
gap: 0.5rem;
padding: 0.75rem;
border-radius: 0.5rem;
cursor: pointer;
transition: background-color 0.3s;
&:hover {
background: rgba(255, 255, 255, 0.1);
}
&.active {
background: rgba(0, 124, 240, 0.1);
}
.icon {
width: 1.25rem;
height: 1.25rem;
}
.title {
flex: 1;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
}
}
}
.chat-main {
flex: 1;
display: flex;
flex-direction: column;
background: rgba(255, 255, 255, 0.95);
backdrop-filter: blur(10px);
border-radius: 1rem;
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
overflow: hidden; // 防止内容溢出
.messages {
flex: 1;
overflow-y: auto; // 只允许消息区域滚动
padding: 2rem;
}
.input-area {
flex-shrink: 0;
padding: 1.5rem 2rem;
background: rgba(255, 255, 255, 0.98);
border-top: 1px solid rgba(0, 0, 0, 0.05);
display: flex;
flex-direction: column;
gap: 1rem;
.selected-files {
background: rgba(0, 0, 0, 0.02);
border-radius: 0.75rem;
padding: 0.75rem;
border: 1px solid rgba(0, 0, 0, 0.05);
.file-item {
display: flex;
align-items: center;
justify-content: space-between;
padding: 0.75rem;
background: #fff;
border-radius: 0.5rem;
margin-bottom: 0.75rem;
border: 1px solid rgba(0, 0, 0, 0.05);
transition: all 0.2s ease;
&:last-child {
margin-bottom: 0;
}
&:hover {
background: rgba(0, 124, 240, 0.02);
border-color: rgba(0, 124, 240, 0.2);
}
.file-info {
display: flex;
align-items: center;
gap: 0.75rem;
.icon {
width: 1.5rem;
height: 1.5rem;
color: #007CF0;
}
.file-name {
font-size: 0.875rem;
color: #333;
font-weight: 500;
}
.file-size {
font-size: 0.75rem;
color: #666;
background: rgba(0, 0, 0, 0.05);
padding: 0.25rem 0.5rem;
border-radius: 1rem;
}
}
.remove-btn {
padding: 0.375rem;
border: none;
background: rgba(0, 0, 0, 0.05);
color: #666;
cursor: pointer;
border-radius: 0.375rem;
transition: all 0.2s ease;
&:hover {
background: #ff4d4f;
color: #fff;
}
.icon {
width: 1.25rem;
height: 1.25rem;
}
}
}
}
.input-row {
display: flex;
gap: 1rem;
align-items: flex-end;
background: #fff;
padding: 0.75rem;
border-radius: 1rem;
border: 1px solid rgba(0, 0, 0, 0.1);
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
.file-upload {
.hidden {
display: none;
}
.upload-btn {
width: 2.5rem;
height: 2.5rem;
display: flex;
align-items: center;
justify-content: center;
border: none;
border-radius: 0.75rem;
background: rgba(0, 124, 240, 0.1);
color: #007CF0;
cursor: pointer;
transition: all 0.2s ease;
&:hover:not(:disabled) {
background: rgba(0, 124, 240, 0.2);
}
&:disabled {
opacity: 0.5;
cursor: not-allowed;
}
.icon {
width: 1.25rem;
height: 1.25rem;
}
}
}
textarea {
flex: 1;
resize: none;
border: none;
background: transparent;
padding: 0.75rem;
color: inherit;
font-family: inherit;
font-size: 1rem;
line-height: 1.5;
max-height: 150px;
&:focus {
outline: none;
}
&::placeholder {
color: #999;
}
}
.send-button {
width: 2.5rem;
height: 2.5rem;
display: flex;
align-items: center;
justify-content: center;
border: none;
border-radius: 0.75rem;
background: #007CF0;
color: white;
cursor: pointer;
transition: all 0.2s ease;
&:hover:not(:disabled) {
background: #0066cc;
transform: translateY(-1px);
}
&:disabled {
background: #ccc;
cursor: not-allowed;
}
.icon {
width: 1.25rem;
height: 1.25rem;
}
}
}
}
}
}
.dark {
.sidebar {
background: rgba(40, 40, 40, 0.95);
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}
.chat-main {
background: rgba(40, 40, 40, 0.95);
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
.input-area {
background: rgba(30, 30, 30, 0.98);
border-top: 1px solid rgba(255, 255, 255, 0.05);
.selected-files {
background: rgba(255, 255, 255, 0.02);
border-color: rgba(255, 255, 255, 0.05);
.file-item {
background: rgba(255, 255, 255, 0.02);
border-color: rgba(255, 255, 255, 0.05);
&:hover {
background: rgba(0, 124, 240, 0.1);
border-color: rgba(0, 124, 240, 0.3);
}
.file-info {
.icon {
color: #007CF0;
}
.file-name {
color: #fff;
}
.file-size {
color: #999;
background: rgba(255, 255, 255, 0.1);
}
}
.remove-btn {
background: rgba(255, 255, 255, 0.1);
color: #999;
&:hover {
background: #ff4d4f;
color: #fff;
}
}
}
}
.input-row {
background: rgba(255, 255, 255, 0.02);
border-color: rgba(255, 255, 255, 0.05);
box-shadow: none;
textarea {
color: #fff;
&::placeholder {
color: #666;
}
}
.file-upload .upload-btn {
background: rgba(0, 124, 240, 0.2);
color: #007CF0;
&:hover:not(:disabled) {
background: rgba(0, 124, 240, 0.3);
}
}
}
}
}
.history-item {
&:hover {
background: rgba(255, 255, 255, 0.05) !important;
}
&.active {
background: rgba(0, 124, 240, 0.2) !important;
}
}
textarea {
background: rgba(255, 255, 255, 0.05) !important;
&:focus {
background: rgba(255, 255, 255, 0.1) !important;
}
}
.input-area {
.file-upload {
.upload-btn {
background: rgba(255, 255, 255, 0.1);
color: #999;
&:hover:not(:disabled) {
background: rgba(255, 255, 255, 0.2);
color: #fff;
}
}
}
}
}
@media (max-width: 768px) {
.ai-chat {
.chat-container {
padding: 0;
}
.sidebar {
display: none; // 在移动端隐藏侧边栏
}
.chat-main {
border-radius: 0;
}
}
}
</style> ChatMessage.vue
<template>
<div class="message" :class="{ 'message-user': isUser }">
<div class="avatar">
<UserCircleIcon v-if="isUser" class="icon" />
<ComputerDesktopIcon v-else class="icon" :class="{ 'assistant': !isUser }" />
</div>
<div class="content">
<div class="text-container">
<button v-if="isUser" class="user-copy-button" @click="copyContent" :title="copyButtonTitle">
<DocumentDuplicateIcon v-if="!copied" class="copy-icon" />
<CheckIcon v-else class="copy-icon copied" />
</button>
<div class="text" ref="contentRef" v-if="isUser">
{{ message.content }}
</div>
<div class="text markdown-content" ref="contentRef" v-else v-html="processedContent"></div>
</div>
<div class="message-footer" v-if="!isUser">
<button class="copy-button" @click="copyContent" :title="copyButtonTitle">
<DocumentDuplicateIcon v-if="!copied" class="copy-icon" />
<CheckIcon v-else class="copy-icon copied" />
</button>
</div>
</div>
</div>
</template>
<script setup>
import { computed, onMounted, nextTick, ref, watch } from 'vue'
import { marked } from 'marked'
import DOMPurify from 'dompurify'
import { UserCircleIcon, ComputerDesktopIcon, DocumentDuplicateIcon, CheckIcon } from '@heroicons/vue/24/outline'
import hljs from 'highlight.js'
import 'highlight.js/styles/github-dark.css'
const contentRef = ref(null)
const copied = ref(false)
const copyButtonTitle = computed(() => copied.value ? '已复制' : '复制内容')
// 配置 marked
marked.setOptions({
breaks: true,
gfm: true,
sanitize: false
})
// 处理内容
const processContent = (content) => {
if (!content) return ''
// 分析内容中的 think 标签
let result = ''
let isInThinkBlock = false
let currentBlock = ''
// 逐字符分析，处理 think 标签
for (let i = 0; i < content.length; i++) {
if (content.slice(i, i + 7) === '<think>') {
isInThinkBlock = true
if (currentBlock) {
// 将之前的普通内容转换为 HTML
result += marked.parse(currentBlock)
}
currentBlock = ''
i += 6 // 跳过 <think>
continue
}
if (content.slice(i, i + 8) === '</think>') {
isInThinkBlock = false
// 将 think 块包装在特殊 div 中
result += `<div class="think-block">${marked.parse(currentBlock)}</div>`
currentBlock = ''
i += 7 // 跳过 </think>
continue
}
currentBlock += content[i]
}
// 处理剩余内容
if (currentBlock) {
if (isInThinkBlock) {
result += `<div class="think-block">${marked.parse(currentBlock)}</div>`
} else {
result += marked.parse(currentBlock)
}
}
// 净化处理后的 HTML
const cleanHtml = DOMPurify.sanitize(result, {
ADD_TAGS: ['think', 'code', 'pre', 'span'],
ADD_ATTR: ['class', 'language']
})
// 在净化后的 HTML 中查找代码块并添加复制按钮
const tempDiv = document.createElement('div')
tempDiv.innerHTML = cleanHtml
// 查找所有代码块
const preElements = tempDiv.querySelectorAll('pre')
preElements.forEach(pre => {
const code = pre.querySelector('code')
if (code) {
// 创建包装器
const wrapper = document.createElement('div')
wrapper.className = 'code-block-wrapper'
// 添加复制按钮
const copyBtn = document.createElement('button')
copyBtn.className = 'code-copy-button'
copyBtn.title = '复制代码'
copyBtn.innerHTML = `
<svg xmlns="http://www.w3.org/2000/svg" class="code-copy-icon" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z" />
</svg>
`
// 添加成功消息
const successMsg = document.createElement('div')
successMsg.className = 'copy-success-message'
successMsg.textContent = '已复制!'
// 组装结构
wrapper.appendChild(copyBtn)
wrapper.appendChild(pre.cloneNode(true))
wrapper.appendChild(successMsg)
// 替换原始的 pre 元素
pre.parentNode.replaceChild(wrapper, pre)
}
})
return tempDiv.innerHTML
}
// 修改计算属性
const processedContent = computed(() => {
if (!props.message.content) return ''
return processContent(props.message.content)
})
// 为代码块添加复制功能
const setupCodeBlockCopyButtons = () => {
if (!contentRef.value) return;
const codeBlocks = contentRef.value.querySelectorAll('.code-block-wrapper');
codeBlocks.forEach(block => {
const copyButton = block.querySelector('.code-copy-button');
const codeElement = block.querySelector('code');
const successMessage = block.querySelector('.copy-success-message');
if (copyButton && codeElement) {
// 移除旧的事件监听器
const newCopyButton = copyButton.cloneNode(true);
copyButton.parentNode.replaceChild(newCopyButton, copyButton);
// 添加新的事件监听器
newCopyButton.addEventListener('click', async (e) => {
e.preventDefault();
e.stopPropagation();
try {
const code = codeElement.textContent || '';
await navigator.clipboard.writeText(code);
// 显示成功消息
if (successMessage) {
successMessage.classList.add('visible');
setTimeout(() => {
successMessage.classList.remove('visible');
}, 2000);
}
} catch (err) {
console.error('复制代码失败:', err);
}
});
}
});
}
// 在内容更新后手动应用高亮和设置复制按钮
const highlightCode = async () => {
await nextTick()
if (contentRef.value) {
contentRef.value.querySelectorAll('pre code').forEach((block) => {
hljs.highlightElement(block)
})
// 设置代码块复制按钮
setupCodeBlockCopyButtons()
}
}
const props = defineProps({
message: {
type: Object,
required: true
}
})
const isUser = computed(() => props.message.role === 'user')
// 复制内容到剪贴板
const copyContent = async () => {
try {
// 获取纯文本内容
let textToCopy = props.message.content;
// 如果是AI回复，需要去除HTML标签
if (!isUser.value && contentRef.value) {
// 创建临时元素来获取纯文本
const tempDiv = document.createElement('div');
tempDiv.innerHTML = processedContent.value;
textToCopy = tempDiv.textContent || tempDiv.innerText || '';
}
await navigator.clipboard.writeText(textToCopy);
copied.value = true;
// 3秒后重置复制状态
setTimeout(() => {
copied.value = false;
}, 3000);
} catch (err) {
console.error('复制失败:', err);
}
}
// 监听内容变化
watch(() => props.message.content, () => {
if (!isUser.value) {
highlightCode()
}
})
// 初始化时也执行一次
onMounted(() => {
if (!isUser.value) {
highlightCode()
}
})
const formatTime = (timestamp) => {
if (!timestamp) return ''
return new Date(timestamp).toLocaleTimeString()
}
</script>
<style scoped lang="scss">
.message {
display: flex;
margin-bottom: 1.5rem;
gap: 1rem;
&.message-user {
flex-direction: row-reverse;
.content {
align-items: flex-end;
.text-container {
position: relative;
.text {
background: #f0f7ff; // 浅色背景
color: #333;
border-radius: 1rem 1rem 0 1rem;
}
.user-copy-button {
position: absolute;
left: -30px;
top: 50%;
transform: translateY(-50%);
background: transparent;
border: none;
width: 24px;
height: 24px;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
opacity: 0;
transition: opacity 0.2s;
.copy-icon {
width: 16px;
height: 16px;
color: #666;
&.copied {
color: #4ade80;
}
}
}
&:hover .user-copy-button {
opacity: 1;
}
}
.message-footer {
flex-direction: row-reverse;
}
}
}
.avatar {
width: 40px;
height: 40px;
flex-shrink: 0;
.icon {
width: 100%;
height: 100%;
color: #666;
padding: 4px;
border-radius: 8px;
transition: all 0.3s ease;
&.assistant {
color: #333;
background: #f0f0f0;
&:hover {
background: #e0e0e0;
transform: scale(1.05);
}
}
}
}
.content {
display: flex;
flex-direction: column;
gap: 0.25rem;
max-width: 80%;
.text-container {
position: relative;
}
.message-footer {
display: flex;
align-items: center;
margin-top: 0.25rem;
.time {
font-size: 0.75rem;
color: #666;
}
.copy-button {
display: flex;
align-items: center;
gap: 0.25rem;
background: transparent;
border: none;
font-size: 0.75rem;
color: #666;
padding: 0.25rem 0.5rem;
border-radius: 4px;
cursor: pointer;
margin-right: auto;
transition: background-color 0.2s;
&:hover {
background-color: rgba(0, 0, 0, 0.05);
}
.copy-icon {
width: 14px;
height: 14px;
&.copied {
color: #4ade80;
}
}
.copy-text {
font-size: 0.75rem;
}
}
}
.text {
padding: 1rem;
border-radius: 1rem 1rem 1rem 0;
line-height: 1.5;
white-space: pre-wrap;
color: var(--text-color);
.cursor {
animation: blink 1s infinite;
}
:deep(.think-block) {
position: relative;
padding: 0.75rem 1rem 0.75rem 1.5rem;
margin: 0.5rem 0;
color: #666;
font-style: italic;
border-left: 4px solid #ddd;
background-color: rgba(0, 0, 0, 0.03);
border-radius: 0 0.5rem 0.5rem 0;
// 添加平滑过渡效果
opacity: 1;
transform: translateX(0);
transition: opacity 0.3s ease, transform 0.3s ease;
&::before {
content: '思考';
position: absolute;
top: -0.75rem;
left: 1rem;
padding: 0 0.5rem;
font-size: 0.75rem;
background: #f5f5f5;
border-radius: 0.25rem;
color: #999;
font-style: normal;
}
// 添加进入动画
&:not(:first-child) {
animation: slideIn 0.3s ease forwards;
}
}
:deep(pre) {
background: #f6f8fa;
padding: 1rem;
border-radius: 0.5rem;
overflow-x: auto;
margin: 0.5rem 0;
border: 1px solid #e1e4e8;
code {
background: transparent;
padding: 0;
font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
font-size: 0.9rem;
line-height: 1.5;
tab-size: 2;
}
}
:deep(.hljs) {
color: #24292e;
background: transparent;
}
:deep(.hljs-keyword) {
color: #d73a49;
}
:deep(.hljs-built_in) {
color: #005cc5;
}
:deep(.hljs-type) {
color: #6f42c1;
}
:deep(.hljs-literal) {
color: #005cc5;
}
:deep(.hljs-number) {
color: #005cc5;
}
:deep(.hljs-regexp) {
color: #032f62;
}
:deep(.hljs-string) {
color: #032f62;
}
:deep(.hljs-subst) {
color: #24292e;
}
:deep(.hljs-symbol) {
color: #e36209;
}
:deep(.hljs-class) {
color: #6f42c1;
}
:deep(.hljs-function) {
color: #6f42c1;
}
:deep(.hljs-title) {
color: #6f42c1;
}
:deep(.hljs-params) {
color: #24292e;
}
:deep(.hljs-comment) {
color: #6a737d;
}
:deep(.hljs-doctag) {
color: #d73a49;
}
:deep(.hljs-meta) {
color: #6a737d;
}
:deep(.hljs-section) {
color: #005cc5;
}
:deep(.hljs-name) {
color: #22863a;
}
:deep(.hljs-attribute) {
color: #005cc5;
}
:deep(.hljs-variable) {
color: #e36209;
}
}
}
}
@keyframes blink {
0%,
100% {
opacity: 1;
}
50% {
opacity: 0;
}
}
@keyframes slideIn {
from {
opacity: 0;
transform: translateX(-10px);
}
to {
opacity: 1;
transform: translateX(0);
}
}
.dark {
.message {
.avatar .icon {
&.assistant {
color: #fff;
background: #444;
&:hover {
background: #555;
}
}
}
&.message-user {
.content .text-container {
.text {
background: #1a365d; // 暗色模式下的浅蓝色背景
color: #fff;
}
.user-copy-button {
.copy-icon {
color: #999;
&.copied {
color: #4ade80;
}
}
}
}
}
.content {
.message-footer {
.time {
color: #999;
}
.copy-button {
color: #999;
&:hover {
background-color: rgba(255, 255, 255, 0.1);
}
}
}
.text {
:deep(.think-block) {
background-color: rgba(255, 255, 255, 0.03);
border-left-color: #666;
color: #999;
&::before {
background: #2a2a2a;
color: #888;
}
}
:deep(pre) {
background: #161b22;
border-color: #30363d;
code {
color: #c9d1d9;
}
}
:deep(.hljs) {
color: #c9d1d9;
background: transparent;
}
:deep(.hljs-keyword) {
color: #ff7b72;
}
:deep(.hljs-built_in) {
color: #79c0ff;
}
:deep(.hljs-type) {
color: #ff7b72;
}
:deep(.hljs-literal) {
color: #79c0ff;
}
:deep(.hljs-number) {
color: #79c0ff;
}
:deep(.hljs-regexp) {
color: #a5d6ff;
}
:deep(.hljs-string) {
color: #a5d6ff;
}
:deep(.hljs-subst) {
color: #c9d1d9;
}
:deep(.hljs-symbol) {
color: #ffa657;
}
:deep(.hljs-class) {
color: #f2cc60;
}
:deep(.hljs-function) {
color: #d2a8ff;
}
:deep(.hljs-title) {
color: #d2a8ff;
}
:deep(.hljs-params) {
color: #c9d1d9;
}
:deep(.hljs-comment) {
color: #8b949e;
}
:deep(.hljs-doctag) {
color: #ff7b72;
}
:deep(.hljs-meta) {
color: #8b949e;
}
:deep(.hljs-section) {
color: #79c0ff;
}
:deep(.hljs-name) {
color: #7ee787;
}
:deep(.hljs-attribute) {
color: #79c0ff;
}
:deep(.hljs-variable) {
color: #ffa657;
}
}
&.message-user .content .text {
background: #0066cc;
color: white;
}
}
}
}
.markdown-content {
:deep(p) {
margin: 0.5rem 0;
&:first-child {
margin-top: 0;
}
&:last-child {
margin-bottom: 0;
}
}
:deep(ul),
:deep(ol) {
margin: 0.5rem 0;
padding-left: 1.5rem;
}
:deep(li) {
margin: 0.25rem 0;
}
:deep(code) {
background: rgba(0, 0, 0, 0.05);
padding: 0.2em 0.4em;
border-radius: 3px;
font-size: 0.9em;
font-family: ui-monospace, monospace;
}
:deep(pre code) {
background: transparent;
padding: 0;
}
:deep(table) {
border-collapse: collapse;
margin: 0.5rem 0;
width: 100%;
}
:deep(th),
:deep(td) {
border: 1px solid #ddd;
padding: 0.5rem;
text-align: left;
}
:deep(th) {
background: rgba(0, 0, 0, 0.05);
}
:deep(blockquote) {
margin: 0.5rem 0;
padding-left: 1rem;
border-left: 4px solid #ddd;
color: #666;
}
:deep(.code-block-wrapper) {
position: relative;
margin: 1rem 0;
border-radius: 6px;
overflow: hidden;
.code-copy-button {
position: absolute;
top: 0.5rem;
right: 0.5rem;
background: rgba(255, 255, 255, 0.1);
border: none;
color: #e6e6e6;
cursor: pointer;
padding: 0.25rem;
border-radius: 4px;
display: flex;
align-items: center;
justify-content: center;
opacity: 0;
transition: opacity 0.2s, background-color 0.2s;
z-index: 10;
&:hover {
background-color: rgba(255, 255, 255, 0.2);
}
.code-copy-icon {
width: 16px;
height: 16px;
}
}
&:hover .code-copy-button {
opacity: 0.8;
}
pre {
margin: 0;
padding: 1rem;
background: #1e1e1e;
overflow-x: auto;
code {
background: transparent;
padding: 0;
font-family: ui-monospace, monospace;
}
}
.copy-success-message {
position: absolute;
top: 0.5rem;
right: 0.5rem;
background: rgba(74, 222, 128, 0.9);
color: white;
padding: 0.25rem 0.5rem;
border-radius: 4px;
font-size: 0.75rem;
opacity: 0;
transform: translateY(-10px);
transition: opacity 0.3s, transform 0.3s;
pointer-events: none;
z-index: 20;
&.visible {
opacity: 1;
transform: translateY(0);
}
}
}
}
.dark {
.markdown-content {
:deep(.code-block-wrapper) {
.code-copy-button {
background: rgba(255, 255, 255, 0.05);
&:hover {
background-color: rgba(255, 255, 255, 0.1);
}
}
pre {
background: #0d0d0d;
}
}
:deep(code) {
background: rgba(255, 255, 255, 0.1);
}
:deep(th),
:deep(td) {
border-color: #444;
}
:deep(th) {
background: rgba(255, 255, 255, 0.1);
}
:deep(blockquote) {
border-left-color: #444;
color: #999;
}
}
}
</style>api.js 接口调用js
const BASE_URL = 'http://localhost:8080'
export const chatAPI = {
// 发送聊天消息
async sendMessage(data, chatId) {
try {
const url = new URL(`${BASE_URL}/ai/chat`)
if (chatId) {
url.searchParams.append('chatId', chatId)
}
const response = await fetch(url, {
method: 'POST',
body: data instanceof FormData ? data :
new URLSearchParams({ prompt: data })
})
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`)
}
return response.body.getReader()
} catch (error) {
console.error('API Error:', error)
throw error
}
},
// 获取聊天历史列表
async getChatHistory(type = 'chat') { // 添加类型参数
try {
const response = await fetch(`${BASE_URL}/ai/history/${type}`)
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`)
}
const chatIds = await response.json()
// 转换为前端需要的格式
return chatIds.map(id => ({
id,
title: type === 'pdf' ? `PDF对话 ${id.slice(-6)}` :
type === 'service' ? `咨询 ${id.slice(-6)}` :
`对话 ${id.slice(-6)}`
}))
} catch (error) {
console.error('API Error:', error)
return []
}
},
// 获取特定对话的消息历史
async getChatMessages(chatId, type = 'chat') { // 添加类型参数
try {
const response = await fetch(`${BASE_URL}/ai/history/${type}/${chatId}`)
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`)
}
const messages = await response.json()
// 添加时间戳
return messages.map(msg => ({
...msg,
timestamp: new Date() // 由于后端没有提供时间戳，这里临时使用当前时间
}))
} catch (error) {
console.error('API Error:', error)
return []
}
},如果有什么疑问或者建议欢迎评论区留言讨论！