fix：处理文件预览

src/api/common.ts

+// src/api/common.ts
 import http from '@/utils/request'
 
 /**
  * 登录
- * @returns
  */
 export function fetchLoginByUid(uid: string) {
   return http.post('/user/api/login/mobile/v1/guest/login', {
@@ -12,7 +12,6 @@ export function fetchLoginByUid(uid: string) {
 
 /**
  * 第三方登录
- * @returns
  */
 export function fetchLoginByToken(loginCode: any) {
   return http.post('/user/api/login/mobile/v1/sso_login', {
@@ -22,16 +21,25 @@ export function fetchLoginByToken(loginCode: any) {
 
 /**
  * 获取协议列表
- * @returns
  */
 export function fetchGetAgreementList() {
   return http.post('/config-center/api/commonconfig/mobile/v1/query_agreement_list')
 }
 
 /**
- * 获取文档链接s
- * @param recordId
- * @returns
+ * 获取文档链接
+ * @param docId
+ */
+export function fetchGetDocumentLink(docId: string) {
+  return http.post('/conversation/api/conversation/mobile/v1/get_document', {
+    ossType: 'private',
+    docId,
+  })
+}
+
+/**
+ * 批量获取文档链接
+ * @param docIdList
  */
 export function fetchGetDocumentLinks(docIdList: string[]) {
   return http.post('/conversation/api/conversation/mobile/v1/query_batch_document', {
@@ -41,13 +49,14 @@ export function fetchGetDocumentLinks(docIdList: string[]) {
 }
 
 /**
- * 获取文档链接
- * @param recordId
- * @returns
+ * 下载文件
+ * @param docId
  */
-export function fetchGetDocumentLink(docId: string) {
-  return http.post('/conversation/api/conversation/mobile/v1/get_document', {
+export function fetchDownloadFile(docId: string) {
+  return http.post('/conversation/api/conversation/mobile/v1/download_file', {
     ossType: 'private',
     docId,
+  }, {
+    responseType: 'blob',
   })
 }

src/pages/Chat/components/ChatItem/ChatAnswerAttchment.tsx

@@ -9,7 +9,7 @@ import CardCalculation from '@/assets/card-calculation.png'
 import CardDetailImg from '@/assets/card-detail.png'
 import CardPlansImg from '@/assets/card-book1111.png'
 import CardProductCompareImg from '@/assets/card-product2222.png'
-import { fetchGetDocumentLink } from '@/api/common'
+import { fetchDownloadFile } from '@/api/common'
 import { FilePreviewModal } from '@/components/FilePreviewModal'
 
 interface ChatAnswerAttachmentProps {
@@ -40,22 +40,48 @@ export const ChatAnswerAttachment: React.FC<ChatAnswerAttachmentProps> = ({
   const handleClickDocLink = async (doc: any) => {
     try {
       const docId = `${doc.knowledgeName}/${doc.documentStoreKey}`
-      const res = await fetchGetDocumentLink(docId)
 
-      if (res.data) {
-        setCurrentDoc(doc)
-        setDocUrl(res.data.docUrl)
-        setPreviewModalOpen(true)
-      }
+      const resBlob: any = await fetchDownloadFile(docId)
+      const mimeType = blobType(doc.documentAlias) // 修正参数
+      const blob = new Blob([resBlob.data], { type: mimeType })
+
+      // 创建 fileBlob URL
+      const fileBlobUrl = URL.createObjectURL(blob)
+
+      setCurrentDoc(doc)
+      setDocUrl(fileBlobUrl) // 传递 blob URL
+      setPreviewModalOpen(true)
     }
  catch (error) {
       console.error('获取文档链接失败:', error)
-      // 如果获取预览链接失败，直接打开新窗口
-      const docId = `${doc.knowledgeName}/${doc.documentStoreKey}`
-      const res = await fetchGetDocumentLink(docId)
-      if (res.data) {
-        window.open(res.data.docUrl, '_blank')
-      }
+    }
+  }
+
+  function blobType(fileName: string) {
+    const ext = fileName.substring(fileName.lastIndexOf('.')).toLowerCase()
+    switch (ext) {
+      case '.pdf':
+        return 'application/pdf'
+      case '.doc':
+        return 'application/msword'
+      case '.docx':
+        return 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'
+      case '.xls':
+        return 'application/vnd.ms-excel'
+      case '.xlsx':
+        return 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
+      case '.ppt':
+        return 'application/vnd.ms-powerpoint'
+      case '.pptx':
+        return 'application/vnd.openxmlformats-officedocument.presentationml.presentation'
+      case '.txt':
+        return 'text/plain;charset=utf-8'
+      case '.wps':
+        return 'application/wps-office.wps'
+      case '.ett':
+        return 'application/wps-office.ett'
+      default:
+        return 'application/octet-stream'
     }
   }
 

src/utils/request.ts

+// src/utils/request.ts
 import axios from 'axios'
 import type {
   AxiosError,
@@ -33,13 +34,10 @@ service.interceptors.request.use(
       'X-Token': JSON.parse(token),
       'X-Request-Id': `${Date.now()}${Math.random().toString(36).substring(2)}`,
       'X-Request-By': config.url,
-      // 'X-App-Type': getAppType() || '',
-      // 'X-Channel-Code': getChannelCode() || '',
     }
     return config
   },
   (error: AxiosError) => {
-    // showToast(error.message)
     return Promise.reject(error)
   },
 )
@@ -47,8 +45,15 @@ service.interceptors.request.use(
 service.interceptors.response.use(
   (response: AxiosResponse<any, Response<ResponseData>>) => {
     const { code, message } = response.data
-    if (response.config.responseType === 'stream')
+
+    // 处理 blob 响应类型
+    if (response.config.responseType === 'blob') {
+      return response
+    }
+
+    if (response.config.responseType === 'stream') {
       return response
+    }
 
     if (code === '00000000') {
       return response.data
@@ -56,16 +61,12 @@ service.interceptors.response.use(
     else if (code === '00000005') {
       // 处理登录失效
       window.localStorage.clear()
-      // window.location.href = '/sdream-ai'
-      // window.location.reload()
     }
     else {
-      // showToast(message)
       return Promise.reject(new Error(message))
     }
   },
   (error: AxiosError) => {
-    // showToast('网络请求异常')
     return Promise.reject(error)
   },
 )
@@ -95,6 +96,7 @@ export const http = {
   delete<T = any>(url: string, config?: AxiosRequestConfig): Promise<T> {
     return service.delete(url, config)
   },
+
   stream<T = any>(url: string, data: T) {
     return service.post(url, data, {
       responseType: 'stream',