设备维护项目导出模板兼容下载方式

src/views/component/device/index.vue

@@ -349,6 +349,7 @@ import image02 from '@/assets/images/device/02.png'
 import image03 from '@/assets/images/device/03.png'
 import image04 from '@/assets/images/device/04.png'
 import { getImage } from '@/api/platform/file/attachment'
+import { download } from '@/api/platform/file/attachment'
 
 import xlsx from 'xlsx'
 import fs from 'file-saver'
@@ -629,7 +630,7 @@ export default {
         }
     },
     async mounted () {
-        const { stateList, hideSysDeviceNo, tabList } = await getSetting('device')
+        const { stateList, hideSysDeviceNo, tabList } = await getSetting('device') || {}
         if (stateList) {
             console.debug('stateList', stateList)
             this.stateList = stateList
@@ -1044,8 +1045,25 @@ export default {
                 const sql = `select b.yuan_she_bei_bian as yuanSheBeiBian,b.she_bei_ming_cheng_ as sheBeiMingCheng,a.parent_id_,a.wei_hu_xiang_mu_c as weiHuXiangMuC,a.wei_hu_ri_qi_ as weiHuRiQi,a.wei_hu_lei_xing_ as weiHuLeiXing,a.ri_qi_shu_zi_ as riQiShuZi from t_whzqjxm a,t_sbdj b where a.parent_id_=b.id_ and a.parent_id_ in (${selection.map(i => `'${i}'`).join(',')})`
                 const { variables: { data }} = await this.$common.request('sql', sql)
                 exportData = data
+                this.xlsx(exportData, this.projectColums, '设备维护项目数据' + this.getTimeStamp())
+            } else {
+                const attachmentId = 'device_maintainProject'
+                const res = await download({ attachmentId })
+                // 判断 ArrayBuffer 的大小，主要用于兼容没有文件的情况
+                if (res.data?.byteLength === 0) {
+                    this.xlsx([], this.projectColums, '设备维护项目模板' + this.getTimeStamp())
+                } else {
+                    // const blob = new Blob([res.data], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' })
+                    const a = document.createElement('a')
+                    a.style.display = 'none'
+                    // a.href = URL.createObjectURL(blob)
+                    a.href = res.request.responseURL
+                    // a.download = '设备维护项目导入模板'
+                    document.body.appendChild(a)
+                    a.click()
+                    document.body.removeChild(a)
+                }
             }
-            this.xlsx(exportData, this.projectColums, '设备维护项目数据' + this.getTimeStamp())
             this.$message.success('导出维护项目成功！')
         },
         // value 转 key