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| name | use-x-chat |
| version | 2.7.0 |
| description | 专注讲解如何使用 useXChat Hook,包括自定义 Provider 的集成、消息管理、错误处理、多会话管理等 |
核心定位:使用
useXChatHook 构建专业级 AI 对话应用 前置要求:已具备自定义 Chat Provider(参考 x-chat-provider 技能)
npm install @ant-design/x-sdk@latest @ant-design/x@latest
由 x-chat-provider 技能负责。注意 XRequest 必须传 manual: true:
import { MyChatProvider } from './MyChatProvider';
import { XRequest } from '@ant-design/x-sdk';
// ⚠️ manual: true 是必须的
const provider = new MyChatProvider({
request: XRequest('https://your-api.com/chat', { manual: true })
});
import { useXChat } from '@ant-design/x-sdk';
const ChatComponent = () => {
const { messages, onRequest, isRequesting } = useXChat({
provider,
requestPlaceholder: (_, { messages }) => ({
content: '正在思考中...',
role: 'assistant'
}),
requestFallback: (_, { error, messageInfo }) => {
if (error.name === 'AbortError') {
return { content: messageInfo?.message?.content || '已取消回复', role: 'assistant' };
}
return { content: '网络异常,请稍后重试', role: 'assistant' };
}
});
return (
<div>
{messages.map(msg => (
<div key={msg.id}>
{msg.message.role}: {msg.message.content}
</div>
))}
<button onClick={() => onRequest({ query: '你好' })}>发送</button>
</div>
);
};
⚠️
messages是MessageInfo<ChatMessage>[],不能直接传给Bubble.List。需要映射为{ key, role, content, loading }格式。Bubble.List使用role属性(不是roles)配置角色样式。
import { Bubble, Sender } from '@ant-design/x';
const ChatUI = () => {
const { messages, onRequest, isRequesting, abort } = useXChat({ provider });
return (
<div style={{ height: 600 }}>
<Bubble.List
// ✅ 正确:使用 role(不是 roles)
role={{
user: { placement: 'end' },
assistant: { placement: 'start' }
}}
items={messages.map(({ id, message, status }) => ({
key: id,
role: message.role, // 用于匹配 role 配置
content: message.content, // 消息内容
loading: status === 'loading' // 加载动画
}))}
/>
<Sender loading={isRequesting} onSubmit={content => onRequest({ query: content })} onCancel={abort} />
</div>
);
};
当 ChatMessage 是复杂对象(如有 content、attachments 等字段),需用 contentRender 渲染:
<Bubble.List
role={{
assistant: {
placement: 'start',
// contentRender 接收 content 参数,就是 message 字段本身
contentRender(content: MyMessage) {
return (
<div>
<div>{content.content}</div>
{content.attachments?.map(a => (
<FileCard key={a.url} name={a.name} />
))}
</div>
);
}
},
user: {
placement: 'end',
contentRender(content: MyMessage) {
return content.content;
}
}
}}
items={messages.map(({ id, message, status }) => ({
key: id,
role: message.role,
content: message, // ⚠️ 传整个 message 对象,contentRender 会处理渲染
loading: status === 'loading'
}))}
/>
⚠️ 重要:
messages类型是MessageInfo<ChatMessage>[],消息内容在msg.message中
interface MessageInfo<ChatMessage> {
id: number | string; // 消息唯一标识
message: ChatMessage; // 实际消息内容(你的 ChatMessage 类型)
status: MessageStatus; // 消息状态
extraInfo?: AnyObject; // 扩展信息(注意:是 extraInfo,不是 extra)
}
type MessageStatus = 'local' | 'loading' | 'updating' | 'success' | 'error' | 'abort';
// local: 用户发送的本地消息
// loading: AI 回复占位中(requestPlaceholder 对应此状态)
// updating: AI 正在流式输出
// success: AI 回复完成
// error: 请求失败
// abort: 用户主动取消
| 配置项 | 类型 | 说明 |
|---|---|---|
provider | AbstractChatProvider<ChatMessage, Input, Output> | 必填,Provider 实例 |
conversationKey | string | 会话唯一标识,多会话必填 |
defaultMessages | DefaultMessageInfo[] | () => ... | async () => ... | 默认展示消息,支持异步加载 |
requestPlaceholder | ChatMessage | (requestParams, { messages }) => ChatMessage | 请求中的占位消息 |
requestFallback | ChatMessage | (requestParams, { error, errorInfo, messages, messageInfo }) => ChatMessage | Promise<ChatMessage> | 请求失败/中止时的兜底消息 |
parser | (message: ChatMessage) => BubbleMessage | BubbleMessage[] | 将 ChatMessage 转为组件消费格式,支持一转多 |
requestFallback中messageInfo类型为MessageInfo<ChatMessage>,是请求失败时正在更新的那条消息。requestFallback同时处理网络错误(error)和主动取消(error.name === 'AbortError')。
| 返回值 | 类型 | 说明 |
|---|---|---|
messages | MessageInfo<ChatMessage>[] | 消息列表,需映射后传给 Bubble.List |
parsedMessages | MessageInfo<ParsedMessage>[] | 经过 parser 转译后的消息列表(有 parser 时用这个) |
onRequest | (params: Partial<Input>, opts?: { extraInfo: AnyObject }) => void | 添加消息并触发请求 |
isRequesting | boolean | 是否正在请求 |
abort | () => void | 中止当前请求 |
setMessages | (messages: Partial<MessageInfo<ChatMessage>>[]) => void | 直接修改消息列表,不触发请求 |
setMessage | (id: string | number, info: Partial<MessageInfo<ChatMessage>>) => void | 修改单条消息,不触发请求 |
removeMessage | (id: string | number) => boolean | 删除某条消息,返回是否删除成功 |
onReload | (id: string | number, params: Partial<Input>, opts?: { extraInfo: AnyObject }) => void | 重新生成某条 AI 回复 |
queueRequest | (conversationKey: string | symbol, params: Partial<Input>, opts?: { extraInfo: AnyObject }) => void | 队列化请求,等待会话初始化后发送 |
isDefaultMessagesRequesting | boolean | 默认消息是否在异步加载中 |
核心功能参考 CORE.md
useXConversations 是 @ant-design/x-sdk 提供的会话列表管理 Hook,与 useXChat 配合实现多会话:
import { useXConversations } from '@ant-design/x-sdk';
import type { ConversationData } from '@ant-design/x-sdk';
const {
conversations, // ConversationData[]:会话列表
activeConversationKey, // string:当前激活会话的 key
setActiveConversationKey, // (key: string) => void:切换会话
addConversation, // ( ConversationData, placement?) => boolean
removeConversation, // (key: string) => boolean
setConversation, // (key: string, data: ConversationData) => boolean
getConversation, // (key: string) => ConversationData | undefined
setConversations, // (list: ConversationData[]) => void
getMessages // (key: string) => MessageInfo[] | undefined(跨组件读取消息)
} = useXConversations({
defaultConversations: [
{ key: 'conv-1', label: '会话 1' },
{ key: 'conv-2', label: '会话 2' }
],
defaultActiveConversationKey: 'conv-1'
});
import { useXChat, useXConversations } from '@ant-design/x-sdk';
import { OpenAIChatProvider, XRequest } from '@ant-design/x-sdk';
import { Bubble, Conversations, Sender } from '@ant-design/x';
import React, { useEffect, useRef } from 'react';
// ⚠️ 每个会话必须有独立的 Provider 实例,否则状态会混用
const providerCache = new Map<string, OpenAIChatProvider>();
function getProvider(key: string): OpenAIChatProvider {
if (!providerCache.has(key)) {
providerCache.set(
key,
new OpenAIChatProvider({
request: XRequest(BASE_URL, { manual: true, params: { model: 'gpt-4o', stream: true } })
})
);
}
return providerCache.get(key)!;
}
const App = () => {
const senderRef = useRef<any>(null);
const { conversations, activeConversationKey, setActiveConversationKey, addConversation } = useXConversations({
defaultConversations: [{ key: 'conv-1', label: '新对话' }],
defaultActiveConversationKey: 'conv-1'
});
const { messages, onRequest, isRequesting, abort, queueRequest } = useXChat({
provider: getProvider(activeConversationKey),
conversationKey: activeConversationKey,
// 异步加载默认消息
defaultMessages: async ({ conversationKey }) => {
// 根据 conversationKey 从服务器加载历史消息
return [];
},
requestFallback: (_, { error, messageInfo }) => {
if (error.name === 'AbortError') {
return { content: messageInfo?.message?.content || '已取消', role: 'assistant' };
}
return { content: '请求失败', role: 'assistant' };
}
});
// 切换会话时清空输入框
useEffect(() => {
senderRef.current?.clear?.();
}, [activeConversationKey]);
const handleNewConversation = () => {
const newKey = `conv-${Date.now()}`;
addConversation({ key: newKey, label: `新对话 ${conversations.length + 1}` });
setActiveConversationKey(newKey);
};
return (
<div style={{ display: 'flex', height: '100vh' }}>
<Conversations
items={conversations}
activeKey={activeConversationKey}
onActiveChange={setActiveConversationKey}
creation={{ onClick: handleNewConversation }}
/>
<div style={{ flex: 1, display: 'flex', flexDirection: 'column' }}>
<Bubble.List
role={{ assistant: { placement: 'start' }, user: { placement: 'end' } }}
items={messages.map(({ id, message, status }) => ({
key: id,
role: message.role,
content: message.content,
loading: status === 'loading'
}))}
/>
<Sender
ref={senderRef}
loading={isRequesting}
onCancel={abort}
onSubmit={val => {
onRequest({ messages: [{ role: 'user', content: val }] });
}}
/>
</div>
</div>
);
};
// 场景:用户切换到新会话,同时触发一条初始消息
// queueRequest 会等 defaultMessages 异步加载完成后,再发送请求
const handleNewConversationWithFirstMessage = () => {
const newKey = `conv-${Date.now()}`;
addConversation({ key: newKey, label: '新对话' });
setActiveConversationKey(newKey);
// 把消息加入队列,等 newKey 会话的 defaultMessages 加载完后自动发送
queueRequest(newKey, {
messages: [{ role: 'user', content: '你好!请自我介绍' }]
});
};
| 使用场景 | 需要的技能/Provider | 使用顺序 |
|---|---|---|
| 私有API适配 | x-chat-provider → use-x-chat | 先创建 Provider |
| 标准API | 内置 Provider + use-x-chat | 直接使用 |
| 多会话 | Provider 工厂 + useXConversations + useXChat | 配合使用 |
使用 use-x-chat 前必须确认:
manual: trueMessageInfo 数据结构(消息内容在 msg.message 中)Bubble.List 使用 role 属性(不是 roles)tsc --noEmit 确保无类型错误