feat: 新增大屏功能，bug修复。

src/utils/request.ts

@@ -87,4 +87,84 @@ export function deleteAction(url: string, data?: any, isToken: boolean = true) {
   return request({ data, url, method: 'DELETE', headers: { isToken }, })
 }
 
+export function downloadAction(url: string, data: any = {}, filename: string = 'download.xlsx') {
+  const token = getToken()
+  const fullUrl = baseUrl + url
+  // #ifdef H5
+  return new Promise((resolve, reject) => {
+    const xhr = new XMLHttpRequest()
+    xhr.open('POST', fullUrl, true)
+    xhr.responseType = 'blob'
+    xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded')
+    if (token) {
+      xhr.setRequestHeader('Authorization', 'Bearer ' + token)
+    }
+    xhr.onload = () => {
+      if (xhr.status >= 200 && xhr.status < 300) {
+        const blob = xhr.response
+        const link = document.createElement('a')
+        link.href = window.URL.createObjectURL(blob)
+        link.download = filename
+        link.click()
+        window.URL.revokeObjectURL(link.href)
+        resolve(blob)
+      } else {
+        toast('下载文件出现错误')
+        reject(xhr.status)
+      }
+    }
+    xhr.onerror = () => {
+      toast('下载文件出现错误')
+      reject(new Error('download error'))
+    }
+    xhr.send(tansParams(data))
+  })
+  // #endif
+  // #ifndef H5
+  return new Promise((resolve, reject) => {
+    uni.request({
+      method: 'POST',
+      url: fullUrl,
+      data: tansParams(data),
+      responseType: 'arraybuffer',
+      header: {
+        'Content-Type': 'application/x-www-form-urlencoded',
+        ...(token ? { Authorization: 'Bearer ' + token } : {})
+      },
+      success: (res: any) => {
+        if (res.statusCode !== 200) {
+          toast('下载文件出现错误')
+          reject(res.statusCode)
+          return
+        }
+        // #ifdef MP-WEIXIN
+        const filePath = `${wx.env.USER_DATA_PATH}/${filename}`
+        uni.getFileSystemManager().writeFile({
+          filePath,
+          data: res.data,
+          success: () => {
+            uni.openDocument({
+              filePath,
+              fileType: 'xlsx',
+              showMenu: true,
+              success: resolve,
+              fail: reject
+            })
+          },
+          fail: reject
+        })
+        // #endif
+        // #ifndef MP-WEIXIN
+        resolve(res.data)
+        // #endif
+      },
+      fail: (err) => {
+        toast('下载文件出现错误')
+        reject(err)
+      }
+    })
+  })
+  // #endif
+}
+
 export default request