修改代码,去掉原有组件的请求后端的方式。改用更简单的EventSource的方式。确保结果渲染正确。

This commit is contained in:
2025-10-22 22:40:19 +08:00
parent 108d755166
commit 7dbb8a3a08

View File

@@ -5,7 +5,7 @@ import type {
ConversationsProps,
PromptsProps,
} from 'ant-design-x-vue'
import type { VNode } from 'vue'
import type { Component, VNode } from 'vue'
import {
CloudUploadOutlined,
CommentOutlined,
@@ -18,7 +18,7 @@ import {
ShareAltOutlined,
SmileOutlined,
} from '@ant-design/icons-vue'
import { Badge, Button, Flex, Space, Typography, theme } from 'ant-design-vue'
import { Badge, Button, Flex, Space, theme } from 'ant-design-vue'
import {
Attachments,
Bubble,
@@ -213,7 +213,7 @@ let messageIdCounter = 0
// ==================== Runtime ====================
async function sendMessage(userMessage: string) {
console.log('📝 [Submit] 用户提交消息:', userMessage)
console.log('[Submit] 用户提交消息:', userMessage)
if (!userMessage) return
// 添加用户消息
@@ -243,10 +243,10 @@ async function sendMessage(userMessage: string) {
message: userMessage,
conversionId: convId,
}
console.log('📤 [Request] 请求体:', JSON.stringify(requestBody, null, 2))
console.log('[Request] 请求体:', JSON.stringify(requestBody, null, 2))
// 调用后端接口
const response = await fetch('http://localhost:8080/dashscope/chat', {
// 调用后端接口 - POST 请求 SSE 流式响应
const response = await fetch('http://localhost:8080/dashscope/generateStream', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
@@ -254,7 +254,7 @@ async function sendMessage(userMessage: string) {
body: JSON.stringify(requestBody),
})
console.log('📥 [Response] 响应状态:', response.status, response.statusText)
console.log('[Response] 响应状态:', response.status, response.statusText)
if (!response.ok) {
throw new Error(`请求失败: ${response.status} ${response.statusText}`)
@@ -266,25 +266,22 @@ async function sendMessage(userMessage: string) {
const decoder = new TextDecoder()
let buffer = ''
console.log('🌊 [Stream] 开始读取流数据...')
console.log('[Stream] 开始读取流数据...')
try {
let isFirstChunk = true
while (true) {
const { done, value } = await reader.read()
if (done) {
console.log('[Stream] 流读取完成')
const msg = messages.value[aiMsgIndex]
if (msg) {
msg.status = 'success'
}
console.log('[Stream] 流读取完成')
break
}
// 解码数据
const text = decoder.decode(value, { stream: true })
buffer += text
console.log('📦 [Stream] 收到原始数据:', text)
console.log('[Stream] 收到原始数据:', text)
// 解析 SSE 格式: data: content\n\n
const lines = buffer.split('\n\n')
@@ -299,14 +296,28 @@ async function sendMessage(userMessage: string) {
for (const block of lines) {
if (block.startsWith('data:')) {
// 提取 data: 后面的内容
const content = block.substring(5)
console.log('[Parse] 解析后的内容:', JSON.stringify(content))
const data = block.substring(5).trim()
console.log('[Parse] 接收到数据:', data)
// 直接累积到消息内容
if (data) { // 若响应数据不为空
// 解析 JSON
const response = JSON.parse(data)
console.log('[Parse] 解析后的内容:', JSON.stringify(response))
// 更新消息内容并强制触发响应式更新
const msg = messages.value[aiMsgIndex]
if (msg) {
msg.content += content
console.log('🔄 [Update] 更新消息, 当前长度:', msg.content.length)
// 第一次接收到数据时,将状态改为 success这样内容才会显示
if (isFirstChunk) {
isFirstChunk = false
console.log('[Stream] 首次接收数据,设置状态为 success')
}
// 持续追加流式回答
msg.content += response.v
msg.status = 'success'
console.log('[Update] 更新消息, 当前长度:', msg.content.length)
}
}
}
}
@@ -316,7 +327,7 @@ async function sendMessage(userMessage: string) {
}
}
} catch (error) {
console.error('[Error] 请求错误:', error)
console.error('[Error] 请求错误:', error)
const msg = messages.value[aiMsgIndex]
if (msg) {
msg.status = 'error'
@@ -331,7 +342,7 @@ watch(
activeKey,
() => {
if (activeKey.value !== undefined) {
console.log('🔄 [Conversation] 切换会话:', activeKey.value)
console.log('[Conversation] 切换会话:', activeKey.value)
messages.value = []
}
},
@@ -370,18 +381,16 @@ const handleFileChange: AttachmentsProps['onChange'] = (info) =>
// ==================== Nodes ====================
const placeholderNode = computed(() =>
h(Space, { direction: 'vertical', size: 16, style: styles.value.placeholder }, () => [
h(Welcome, {
h(Welcome as Component, {
variant: 'borderless',
icon: 'https://mdn.alipayobjects.com/huamei_iwk9zp/afts/img/A*s5sNRo5LjfQAAAAAAAAAAAAADgCCAQ/fmt.webp',
title: "Hello, I'm Ant Design X",
description: '基于Ant DesignAGI产品界面解决方案创造更美好的智能愿景~',
extra: h(Space, {}, () => [
h(Button, { icon: h(ShareAltOutlined) }),
h(Button, { icon: h(EllipsisOutlined) }),
]),
}),
h(Prompts, {
title: '想要了是吧?',
}, () => "Hello, I'm Ant Design X"),
h(Prompts as Component, {
items: placeholderPromptsItems,
styles: {
list: {
@@ -392,20 +401,20 @@ const placeholderNode = computed(() =>
},
},
onItemClick: onPromptsItemClick,
}),
}, () => '想要了是吧?'),
]),
)
const items = computed<BubbleListProps['items']>(() => {
console.log('🎨 [Items] 计算 items, messages数量:', messages.value.length)
console.log('[Items] 计算 items, messages数量:', messages.value.length)
if (messages.value.length === 0) {
console.log('🎨 [Items] 显示占位符')
console.log('[Items] 显示占位符')
return [{ content: placeholderNode, variant: 'borderless' }]
}
const result = messages.value.map(({ id, role, content, status }) => {
console.log('🎨 [Items] 处理消息:', { id, role, status, contentLength: content?.length })
console.log('[Items] 处理消息:', { id, role, status, contentLength: content?.length })
return {
key: id,
loading: status === 'loading',
@@ -414,7 +423,7 @@ const items = computed<BubbleListProps['items']>(() => {
}
})
console.log('🎨 [Items] 最终 items:', result)
console.log('[Items] 最终 items:', result)
return result
})
</script>
@@ -493,19 +502,19 @@ const items = computed<BubbleListProps['items']>(() => {
vertical
gap="2"
>
<Typography.Text style="font-size: 30px; line-height: 1">
<div style="font-size: 30px; line-height: 1">
<CloudUploadOutlined />
</Typography.Text>
<Typography.Title :level="5" style="margin: 0; font-size: 14px; line-height: 1.5">
</div>
<div style="margin: 0; font-size: 14px; line-height: 1.5; font-weight: 600">
Upload files
</Typography.Title>
<Typography.Text type="secondary">
</div>
<div style="color: rgba(0, 0, 0, 0.45)">
Click or drag files to this area to upload
</Typography.Text>
</div>
</Flex>
<Typography.Text v-if="type && type.type === 'drop'">
<div v-if="type && type.type === 'drop'">
Drop file here
</Typography.Text>
</div>
</template>
</Attachments>
</Sender.Header>