feat(portal): 支持消息内容的 Markdown 和 LaTeX 渲染- 引入 markdown-it 与 highlight.js 实现 Markdown 渲染- 集成 KaTeX 支持数学公式显示

- 更新消息组件以支持实时渲染 Markdown 与 LaTeX
- 调整 AI 对话框宽度为百分比布局
- 优化初始欢迎文案格式并添加段落间距
- 添加必要的依赖项:katex、markdown-it、markdown-it-highlightjs 等- 配置 vue-katex 插件并定义分隔符规则
- 使用 null-loader 处理部分资源加载问题
This commit is contained in:
陈昱达
2025-10-14 11:51:03 +08:00
committed by joshen
parent 9580dd9735
commit b7273410a0
4 changed files with 784 additions and 0 deletions

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@@ -3,6 +3,22 @@ import App from './App.vue'
import router from './router'
import store from './store'
import vueKatexEs from "vue-katex";
import "katex/dist/katex.min.css"
Vue.use(vueKatexEs,{
globalOptions:{
delimiters:[
{left:"$$",right:"$$",display:true},
{left:"$",right:"$",display:false},
{left:"\\[",right:"\\]",display:true},
{left:"\\(",right:"\\)",display:false}
],
throwOnError:true
}
})
//import './mock/index'
import xpage from '@/utils/xpage'

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@@ -0,0 +1,446 @@
<template>
<div>
<!-- 最大化状态的弹窗 -->
<el-dialog
v-if="dialogVisible"
:visible="true"
width="65%"
:close-on-click-modal="false"
:show-close="true"
@close="onClose"
class="case-expert-dialog"
:modal="false"
:append-to-body="true"
:fullscreen="false"
top="10vh"
v-show="windowState === 'maximized'"
>
<!-- 标题 -->
<div slot="title" class="dialog-title">
<span>案例专家</span>
<el-button
type="text"
class="window-control-btn"
@click="minimizeWindow"
>
<i class="el-icon-minus"></i>
</el-button>
</div>
<!-- 内容区域 -->
<div class="content-wrapper">
<div
class="welcome-message"
ref="messageContainer"
@scroll="handleScroll"
>
<div class="message-text" v-for="(item, index) in messageList" :key="index">
<messages :messageData="item" :suggestions="suggestions"></messages>
</div>
<div class="message-suggestions" v-if="messageList.length > 0 && messageList[messageList.length-1].textCompleted">
<div class="suggestion-item" v-for="(item, index) in suggestions" :key="index">
<a @click="sendSuggestions(item)"> {{ item }} </a>
</div>
</div>
<div v-if="isLoading" class="loading-message">
<div class="loading-dots">
<span></span>
<span></span>
<span></span>
</div>
</div>
</div>
<!-- 输入框区域 -->
<send-message
v-model="AIContent"
:message-list="messageList"
:suggestions="suggestions"
@loading="handleLoading"
@update-message="updateMessage"
@update-suggestions="updateSuggestions"
@new-conversation="startNewConversation"
:disabled="isLoading"
class="input-area-wrapper"
ref="sendMessage"
/>
</div>
</el-dialog>
<!-- 最小化状态的弹窗 -->
<div
class="minimized-window"
v-show="windowState === 'minimized' && showMinimizedWindow"
@click="onMinimizedWindowClick"
>
<div class="minimized-content">
<span class="window-title">案例专家</span>
<el-button
type="text"
class="window-control-btn"
@click.stop="onMinimizedWindowClick"
>
<i class="el-icon-full-screen"></i>
</el-button>
</div>
<div class="minimized-message">
<div v-if="messageList.length <= 1 && messageList[0].isBot">
当前暂无对话内容去创建对话吧
</div>
<div v-else>
{{ getLastUserMessage() }}
</div>
</div>
</div>
</div>
</template>
<script>
import { mapState } from 'vuex'
import messages from './components/messages.vue'
import sendMessage from './components/sendMessage.vue'
export default {
name: 'CaseExpertDialog',
props: {
dialogVisible: {
type: Boolean,
default: false
}
},
components: {
messages,
sendMessage
},
computed: {
...mapState('app', ['showAICallMinimized']),
showMinimizedWindow() {
// 只有在Vuex状态为true时才显示最小化窗口
return this.showAICallMinimized;
}
},
data() {
return {
AIContent: '',
isLoading: false,
windowState: 'maximized', // 'maximized' 或 'minimized'
messageList: [
{
typing:true,
isBot: true, // 是否为机器人
text: `\n\n **您好!我是京东方案侧智能问答助手,随时为您服务。** \n\n
\n\n我可以帮您快速查找和解读平台内的各类案例内容。只需输入您想了解的问题或关键词我会从案例库中精准匹配相关信息并提供清晰的解答。每条回答都会附上来源链接方便您随时查阅原始案例全文。\n\n
\n\n我还会根据您的提问智能推荐相关延伸问题助您更高效地探索知识、解决问题。\n\n
\n\n现在欢迎随时向我提问开启高效的知识查询体验吧\n\n `
}
],
suggestions:[],
isAutoScroll: true // 是否自动滚动
}
},
watch: {
dialogVisible(newVal) {
console.log(newVal);
// 移除之前的逻辑,因为现在通过事件机制处理状态恢复
},
messageList: {
handler() {
this.$nextTick(() => {
this.scrollToBottom();
});
},
deep: true
}
},
methods: {
onClose() {
console.log('关闭弹窗')
this.$emit('close')
// 可以在这里执行其他逻辑
},
minimizeWindow() {
this.windowState = 'minimized';
},
maximizeWindow() {
this.windowState = 'maximized';
},
getLastUserMessage() {
// 从后往前找用户消息
for (let i = this.messageList.length - 1; i >= 0; i--) {
if (!this.messageList[i].isBot) {
// 移除HTML标签只返回纯文本
const tempDiv = document.createElement('div');
tempDiv.innerHTML = this.messageList[i].text;
return tempDiv.textContent || tempDiv.innerText || '';
}
}
return '';
},
// 处理加载状态
handleLoading(status) {
this.isLoading = status;
},
// 更新消息
updateMessage(message) {
// 由于Vue的响应式系统message对象的更改会自动更新视图
// 这里不需要额外的操作
},
updateSuggestions(arr){
this.suggestions = arr
},
// 处理建议
sendSuggestions(item){
// this.suggestions = []
this.AIContent = item
setTimeout(()=>{
this.$refs.sendMessage.handleSend()
this.AIContent = ''
},500)
},
startNewConversation() {
this.messageList = [
{
isBot: true,
text: `<p><b>您好!我是京东方案侧智能问答助手,随时为您服务。</b></p>
<p>我可以帮您快速查找和解读平台内的各类案例内容。只需输入您想了解的问题或关键词,我会从案例库中精准匹配相关信息,并提供清晰的解答。每条回答都会附上来源链接,方便您随时查阅原始案例全文。</p>
<p>我还会根据您的提问,智能推荐相关延伸问题,助您更高效地探索知识、解决问题。</p>
<p>现在,欢迎随时向我提问,开启高效的知识查询体验吧!</p>`
}
];
this.AIContent = '';
this.isLoading = false;
},
// 处理滚动事件
handleScroll(event) {
const element = event.target;
// 判断是否滚动到底部
const isAtBottom = element.scrollHeight - element.scrollTop <= element.clientHeight + 1;
// 如果滚动到底部,则开启自动滚动
// 如果离开底部,则关闭自动滚动
this.isAutoScroll = isAtBottom;
},
// 滚动到底部
scrollToBottom() {
if (this.isAutoScroll && this.$refs.messageContainer) {
this.$refs.messageContainer.scrollTop = this.$refs.messageContainer.scrollHeight;
}
},
// 最小化窗口的点击事件处理方法
onMinimizedWindowClick() {
// 当点击最小化窗口时如果dialogVisible为false则通过事件通知父组件显示对话框
if (!this.dialogVisible) {
this.$emit('restore');
}
// 然后将窗口状态设置为最大化
this.windowState = 'maximized';
}
}
}
</script>
<style scoped lang="scss">
.case-expert-dialog {
::v-deep .el-dialog{
background: url("./components/u762.svg") no-repeat ;
background-size: cover;
border-radius: 8px;
overflow: hidden;
//background-color: rgba(255, 255, 255, 0.8);
}
::v-deep .el-dialog__body{
padding: 10px;
//font-size: 12px;
*{
font-size:unset ;
}
}
.dialog-title {
background: transparent;
display: flex;
align-items: center;
justify-content: space-between;
gap: 10px;
font-size: 16px;
font-weight: 600;
color: #333;
padding-right: 20px;
.icon {
width: 24px;
height: 24px;
}
.window-control-btn {
font-size: 18px;
padding: 5px 10px;
color: #333; /* 黑色图标 */
}
}
.message-suggestions{
display: flex;
flex-direction: column;
.suggestion-item{
cursor: pointer;
float: right;
padding: 5px 15px;
box-sizing: border-box;
background-color: rgba(228, 231, 237, 1);
border-radius: 5px;
margin-bottom: 5px;
}
}
.content-wrapper {
padding: 20px;
background-color: transparent;
border-radius: 8px;
height: 550px;
position: relative;
//margin-bottom: 20px;
display: flex;
flex-direction: column;
.welcome-message {
display: flex;
flex-direction: column;
align-items: flex-start;
margin-bottom: 10px;
flex:1;
overflow-y: auto;
.avatar {
margin-right: 12px;
img {
width: 32px;
height: 32px;
border-radius: 50%;
background-color: #007aff;
display: flex;
align-items: center;
justify-content: center;
color: white;
font-size: 14px;
}
}
.message-text {
width: 100%;
//margin-bottom: 15px;
p {
color: #333;
//font-size: 14px;
line-height: 1.6;
margin: 8px 0;
}
}
.loading-message {
display: flex;
align-items: center;
width: 100%;
margin-bottom: 15px;
.avatar {
width: 32px;
height: 32px;
border-radius: 50%;
background-color: #007aff;
margin-right: 12px;
}
.loading-dots {
display: flex;
align-items: center;
span {
display: inline-block;
width: 8px;
height: 8px;
border-radius: 50%;
background-color: #999;
margin-right: 5px;
animation: loading 1.4s infinite ease-in-out both;
&:nth-child(1) {
animation-delay: -0.32s;
}
&:nth-child(2) {
animation-delay: -0.16s;
}
}
}
}
}
.input-area-wrapper {
//position: absolute;
//bottom: 10px;
//width: calc(100% - 40px);
}
@keyframes loading {
0%, 80%, 100% {
transform: scale(0);
}
40% {
transform: scale(1);
}
}
}
}
.minimized-window {
position: fixed;
right: 20px;
bottom: 20px;
width: 300px;
background: url("./components/u762.svg") no-repeat;
background-size: cover;
border-radius: 8px;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
z-index: 2000;
cursor: pointer;
.minimized-content {
display: flex;
justify-content: space-between;
align-items: center;
padding: 10px 15px;
border-bottom: 1px solid #eee;
.window-title {
font-weight: 600;
color: #333;
}
.window-control-btn {
font-size: 16px;
padding: 3px 8px;
color: #000000; /* 黑色图标 */
}
}
.minimized-message {
padding: 15px;
font-size: 14px;
color: #666;
min-height: 60px;
display: flex;
align-items: center;
}
}
</style>

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@@ -0,0 +1,316 @@
<!--消息渲染-->
<script>
import MarkdownIt from 'markdown-it';
import highlight from 'markdown-it-highlightjs'
import "highlight.js/styles/a11y-dark.css"
import katex from "katex"
const md = new MarkdownIt({
}).use(highlight);
export default {
name: "message",
props: {
messageData: {
type: Object,
default: function () {
return {}
}
},
suggestions: {
type: Array,
default: () => []
}
},
data() {
return {
md,
displayText: '',
typingTimer: null,
typingSpeed: 30, // 打字机速度(毫秒/字符)
showAllCaseRefers: false // 控制是否显示所有案例引用
}
},
computed: {
// 计算需要显示的案例引用
displayedCaseRefers() {
if (this.showAllCaseRefers || !this.messageData.caseRefers) {
return this.messageData.caseRefers || [];
}
return this.messageData.caseRefers.slice(0, 3);
},
// 判断是否需要显示"查看更多"按钮
shouldShowMoreButton() {
return this.messageData.caseRefers && this.messageData.caseRefers.length > 3;
}
},
watch: {
'messageData.text': {
handler(newVal) {
if (newVal && this.messageData.isBot && !this.messageData.typing) {
// this.startTyping(newVal)
this.displayText = newVal || ''
} else {
this.displayText = newVal || ''
}
},
immediate: true
}
},
methods: {
toUrl(item) {
console.log(item);
this.$router.push({
path: '/case/detail',
query: {
id: item.caseId
}
})
},
startTyping(text) {
// 清除之前的定时器
if (this.typingTimer) {
clearInterval(this.typingTimer)
this.typingTimer = null
}
// 初始化
// this.displayText = ''
let index = 0
// 开始打字机效果
this.typingTimer = setInterval(() => {
if (index < text.length) {
this.displayText += md.render(text.charAt(index))
index++
} else {
// 打字完成,清除定时器
clearInterval(this.typingTimer)
this.typingTimer = null
}
}, this.typingSpeed)
},
// 切换显示所有案例引用
toggleShowAllCaseRefers() {
this.showAllCaseRefers = !this.showAllCaseRefers;
}
},
beforeDestroy() {
// 组件销毁前清除定时器
if (this.typingTimer) {
clearInterval(this.typingTimer)
this.typingTimer = null
}
}
}
</script>
<template>
<div class="messages">
<!-- 机器人消息-->
<div v-if="messageData.isBot" class="bot-message">
<div class="bot-think" v-if="messageData.thinkText" v-katex:auto v-html="md.render(messageData.thinkText)"></div>
<div v-katex:auto v-html="md.render(displayText)" ></div>
<div v-if="messageData.caseRefers && messageData.caseRefers.length > 0 && messageData.textCompleted">
<div class="case-refers">
<div class="case-refers-title">
<span> <i class="iconfont icon-think"></i> 引用案例</span>
<span v-if="shouldShowMoreButton" class="more" @click="toggleShowAllCaseRefers">
{{ showAllCaseRefers ? '收起' : '查看更多' }}
</span>
</div>
<div class="case-refers-list">
<div class="case-refers-item" v-for="item in displayedCaseRefers" :key="item.caseId">
<div class="case-refers-item-title">
<a @click="toUrl(item)" class="title">{{ item.title }}</a>
<span class="case-refers-item-timer">{{item.uploadTime}}</span>
</div>
<div class="case-refers-item-author">
<span class="user"></span>
<span>{{ item.authorName }}</span>
<span class="case-inter-orginInfo">{{ item.orgInfo }}</span>
</div>
<div class="case-refers-item-keywords">
<span v-for="keyword in item.keywords" :key="keyword">{{ keyword }}</span>
</div>
<div class="message-content">{{item.content}}</div>
</div>
</div>
</div>
</div>
</div>
<!-- 非机器人消息-->
<div v-else class="user-message">
<div class="message-text">
<div v-html="messageData.text"></div>
</div>
</div>
<!-- 推荐问题-->
<!-- <div v-if="suggestions && suggestions.length > 0">-->
<!-- <div class="suggestions">-->
<!-- <div class="suggestions-title">-->
<!-- <span>推荐问题</span>-->
<!-- </div>-->
<!-- <div class="suggestions-list">-->
<!-- <div class="suggestions-item" v-for="item in suggestions">-->
<!-- <div class="suggestions-item-title">-->
<!-- {{item}}-->
<!-- </div>-->
<!-- </div>-->
<!-- </div>-->
<!-- </div>-->
<!-- </div>-->
</div>
</template>
<style scoped lang="scss">
.messages {
width: 100%;
.bot-message {
background-color: #fff;
border-radius: 5px;
padding: 10px;
margin-bottom: 10px;
.bot-think {
color: #909399;
padding-bottom: 5px;
position: relative;
padding-left: 10px;
&:before {
content: ' ';
border-left: 0.5px solid #909399;
position: absolute;
height: 100%;
left: 0;
top: -3px;
transform: scaleX(0.5);
margin-right: 5px;
}
}
.case-refers {
margin-top: 10px;
.case-refers-title {
font-weight: bold;
margin-bottom: 5px;
display: flex;
align-items: center;
justify-content: space-between;
.icon-think {
background-image: url("./map.svg") ;
width: 15px;
height: 13px;
display: inline-block;
background-repeat: no-repeat;
background-size: 100% 100%;
}
.more{
font-size: 10px;
padding: 2px 6px;
background-color: #F4F7FD;
border-radius: 5px;
color:#577EE1;font-weight: unset;
cursor: pointer;
}
}
.case-refers-list {
display: flex;
flex-direction: column;
.case-refers-item {
//margin-right: 10px;
margin-bottom: 5px;
border: 1px solid rgba(144, 147, 153, 0.44);
padding: 5px;
border-radius: 5px;
.case-refers-item-title {
font-size: 14px;
margin-bottom: 5px;
font-weight: 600;
color: #000;
display: flex;
align-items: flex-end;
justify-content: space-between;
.title{
max-width: 70% ;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.case-refers-item-timer{
font-size: 10px;
margin-right: 20px;
color:#cecece;
font-weight: unset!important;
}
}
.case-refers-item-author{
display: flex;
align-items: center;
.user{
background-image: url("./user.svg");
width: 15px;
height: 15px;
display: inline-block;
background-repeat: no-repeat;
background-size: 100% 100%;
margin-right: 5px;
}
.case-inter-orginInfo{
font-size: 10px;
color: rgba(144, 147, 153, 0.44);margin-left: 5px;
}
}
.case-refers-item-author,
.case-refers-item-keywords {
font-size: 12px;
font-weight: 600;
color: #000;
}
}
}
}
}
.user-message {
float: right;
padding: 5px 15px;
box-sizing: border-box;
background-color: rgba(228, 231, 237, 1);
border-radius: 5px;
margin-bottom: 10px;
}
.case-refers-item-keywords{
margin-top: 5px;
span{
padding: 1px 4px;
background-color: #F4F7FD;
border-radius: 5px;
font-size: 10px!important;
color:#577EE1
}
span + span{
margin-left: 8px;
}
}
.message-content{
font-size: 12px!important;
margin-top: 5px;
}
}
</style>