fix: 修复 Lodop 打印 PDF 到虚拟打印机时输出空白的问题

src/components/print.ts

-import useLodop from '@/utils/hooks/useLodop.ts'
-import { printWithLodop } from '@/utils/lodopPrinter'
+import { ElMessage } from 'element-plus'
+import useLodop, { LODOPObject } from '@/utils/hooks/useLodop.ts'
 
 
 const { getCLodop } = useLodop()
 const { getCLodop } = useLodop()
+const lodopCall = async (fn: (lodop: LODOPObject) => string) => {
+  if (!window._lodop) {
+    window._lodop = getCLodop(null, null)
+    if (window._lodop) {
+      window._lodop.On_Return_Remain = true
+      window._lodop.SET_PRINT_MODE('CATCH_PRINT_STATUS', true)
+      window._lodopCallback = {}
+      window._lodop.On_Return = function (id, value) {
+        const cb = window._lodopCallback[id]
+        if (!cb) return
+        delete window._lodopCallback[id]
+        cb(value)
+      }
+    }
+  }
 
 
-export const print = async (url: string,printDevice:string) => {
-  await printWithLodop({
-    getCLodop: () => getCLodop(null, null),
-    printer: printDevice,
-    data: { filePath: url },
-    callback: (_status: boolean) => {},
-    baseUrl: '',
+  return new Promise((resolve) => {
+    let id
+    if (window._lodop) {
+      id = fn(window._lodop)
+    }
+    window._lodopCallback[id || 0] = resolve
   })
   })
 }
 }
+function downloadPDF(url: string) {
+  if (!/^https?:/i.test(url)) return url
+  let xhr,
+    arrybuffer = false,
+    dataArray = null
+  if (window.XMLHttpRequest) {
+    xhr = new XMLHttpRequest()
+  } else {
+    xhr = new window.ActiveXObject('MSXML2.XMLHTTP')
+  }
+  xhr.open('GET', url, false) //同步方式
+  if (xhr.overrideMimeType)
+    try {
+      xhr.responseType = 'arraybuffer'
+      arrybuffer = true
+    } catch (err) {
+      xhr.overrideMimeType('text/plain; charset=x-user-defined')
+    }
+  xhr.send(null)
+  const data = xhr.response || xhr.responseBody
+  if (typeof Uint8Array !== 'undefined') {
+    if (arrybuffer) {
+      dataArray = new Uint8Array(data)
+    } else {
+      dataArray = new Uint8Array(data.length)
+      for (let i = 0; i < dataArray.length; i++) {
+        dataArray[i] = data.charCodeAt(i)
+      }
+    }
+  } else {
+    dataArray = window.VBS_BinaryToArray(data).toArray() //兼容IE低版本
+  }
+  const digits =
+    'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='
+  let strData = ''
+  for (let i = 0, ii = dataArray.length; i < ii; i += 3) {
+    if (isNaN(dataArray[i])) break
+    const b1 = dataArray[i] & 0xff,
+      b2 = dataArray[i + 1] & 0xff,
+      b3 = dataArray[i + 2] & 0xff
+    const d1 = b1 >> 2,
+      d2 = ((b1 & 3) << 4) | (b2 >> 4)
+    const d3 = i + 1 < ii ? ((b2 & 0xf) << 2) | (b3 >> 6) : 64
+    const d4 = i + 2 < ii ? b3 & 0x3f : 64
+    strData +=
+      digits.substring(d1, d1 + 1) +
+      digits.substring(d2, d2 + 1) +
+      digits.substring(d3, d3 + 1) +
+      digits.substring(d4, d4 + 1)
+  }
+  return strData
+}
+
+export const print = async (url: string,printDevice:string) => {
+  const lodop = getCLodop(null, null) //调用getLodop获取LODOP对象
+  if (!lodop) return
+  lodop.PRINT_INIT('打印内容')
+  // SET_PRINTER_INDEX 指定打印设备
+  const setPrintRes = lodop.SET_PRINTER_INDEX(printDevice)
+  if (!setPrintRes) {
+    ElMessage.warning('设置面单打印机出错')
+    return
+  }
+  lodop.ADD_PRINT_PDF(0, 0, '100%', '100%', downloadPDF(url))
+  console.log(lodop)
+  if (lodop.CVERSION) {
+    const startTime = Date.now()
+    const jobCode = await lodopCall((lodop: LODOPObject) => {
+      lodop.SET_PRINT_MODE('CATCH_PRINT_STATUS', true)
+      return lodop.PRINT()
+    })
+
+    console.log('[LODOP] job ' + jobCode)
+    // eslint-disable-next-line no-constant-condition
+    while (true) {
+      const ok = await lodopCall((lodop: LODOPObject) =>
+        lodop.GET_VALUE('PRINT_STATUS_OK', jobCode),
+      )
+      if (ok == 1) {
+        // 打印状态：成功
+        return
+      }
+      // 如果打印状态表示未成功或者返回了空，继续获取任务是否存在
+      const exist = await lodopCall((lodop: LODOPObject) =>
+        lodop.GET_VALUE('PRINT_STATUS_EXIST', jobCode),
+      )
+      console.log(
+        '[LODOP] PRINT_STATUS OK,EXIST',
+        jobCode,
+        ok,
+        exist,
+        `(${Date.now() - startTime}ms)`,
+      )
+      if (exist == 0) {
+        // 任务不存在了
+        return
+      }
+
+      await new Promise((r) => setTimeout(r, 500))
+      if (Date.now() - startTime >= 30000) {
+        ElMessage.error('打印超时(30秒)')
+        return
+      }
+    }
+  } else {
+    lodop.PRINT()
+  }
+}

src/utils/lodopPrinter.ts

-import { ElMessage } from 'element-plus'
-import type { LODOPObject } from '@/utils/hooks/useLodop'
-
-type LodopGetter = () => LODOPObject | null
-
-export function downloadPDF(url: string): string {
-  if (!/^https?:/i.test(url)) return url
-  const xhr = new XMLHttpRequest()
-  let arrayBuffer = false
-  xhr.open('GET', url, false)
-  if (xhr.overrideMimeType) {
-    try {
-      xhr.responseType = 'arraybuffer'
-      arrayBuffer = true
-    } catch {
-      xhr.overrideMimeType('text/plain; charset=x-user-defined')
-    }
-  }
-  xhr.send(null)
-  const data = (xhr.response ||
-    (xhr as unknown as { responseBody?: unknown }).responseBody) as
-    | ArrayBuffer
-    | string
-  let dataArray: Uint8Array
-  if (arrayBuffer) {
-    dataArray = new Uint8Array(data as ArrayBuffer)
-  } else {
-    const text = data as string
-    dataArray = new Uint8Array(text.length)
-    for (let i = 0; i < dataArray.length; i++) dataArray[i] = text.charCodeAt(i)
-  }
-  const digits =
-    'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='
-  let strData = ''
-  for (let i = 0, ii = dataArray.length; i < ii; i += 3) {
-    const b1 = dataArray[i] & 0xff
-    const b2 = dataArray[i + 1] & 0xff
-    const b3 = dataArray[i + 2] & 0xff
-    const d1 = b1 >> 2
-    const d2 = ((b1 & 3) << 4) | (b2 >> 4)
-    const d3 = i + 1 < ii ? ((b2 & 0xf) << 2) | (b3 >> 6) : 64
-    const d4 = i + 2 < ii ? b3 & 0x3f : 64
-    strData +=
-      digits.charAt(d1) +
-      digits.charAt(d2) +
-      digits.charAt(d3) +
-      digits.charAt(d4)
-  }
-  return 'data:application/pdf;base64,' + strData
-}
-
-export function createLodopCaller(getCLodop: LodopGetter) {
-  let lodop: LODOPObject | null = null
-  let lodopCallback: { [key: string]: (value: string) => void } = {}
-
-  return (fn: (lodop: LODOPObject) => string) => {
-    if (!lodop) {
-      lodop = getCLodop()
-      if (!lodop) return Promise.resolve('')
-      lodop.On_Return_Remain = true
-      lodop.SET_PRINT_MODE('CATCH_PRINT_STATUS', true)
-      lodopCallback = {}
-      lodop.On_Return = (id, value) => {
-        const cb = lodopCallback[id]
-        if (!cb) return
-        delete lodopCallback[id]
-        cb(value)
-      }
-    }
-
-    return new Promise<string>((resolve) => {
-      if (!lodop) {
-        resolve('')
-        return
-      }
-      const id = fn(lodop)
-      lodopCallback[id] = resolve
-    })
-  }
-}
-
-interface PrintData {
-  filePath?: string
-  fileData?: string
-}
-
-interface PrintWithLodopOptions {
-  getCLodop: LodopGetter
-  printer: string
-  data: PrintData
-  callback?: (success: boolean) => void
-  timeout?: number
-  baseUrl?: string
-}
-
-export async function printWithLodop(options: PrintWithLodopOptions) {
-  const {
-    getCLodop,
-    printer,
-    data,
-    callback,
-    timeout = 30000,
-    baseUrl = '',
-  } = options
-  const lodop = getCLodop()
-  if (!lodop) return
-
-  const lodopCall = createLodopCaller(getCLodop)
-  lodop.PRINT_INIT('打印内容')
-  const printerIndex = lodop.SET_PRINTER_INDEX(printer)
-  if (!printerIndex) {
-    ElMessage.error('打印机设置失败')
-    callback?.(false)
-    return
-  }
-
-  if (data.filePath) {
-    const strURL = /^https?:/i.test(data.filePath)
-      ? data.filePath
-      : baseUrl + data.filePath
-    lodop.ADD_PRINT_PDF(
-      0,
-      0,
-      '100%',
-      '100%',
-      /^https?:/i.test(strURL) ? downloadPDF(strURL) : strURL,
-    )
-  } else {
-    lodop.SEND_PRINT_RAWDATA(data.fileData || '')
-  }
-
-  if (lodop.CVERSION) {
-    const startTime = Date.now()
-    const jobCode = await lodopCall((instance) => {
-      instance.SET_PRINT_MODE('CATCH_PRINT_STATUS', true)
-      return instance.PRINT()
-    })
-    let pending = true
-    while (pending) {
-      const ok = await lodopCall((instance) =>
-        instance.GET_VALUE('PRINT_STATUS_OK', jobCode),
-      )
-      if (ok == '1' || ok == '1.0') {
-        callback?.(true)
-        return
-      }
-      const exist = await lodopCall((instance) =>
-        instance.GET_VALUE('PRINT_STATUS_EXIST', jobCode),
-      )
-      if (exist == '0' || exist == '0.0') {
-        callback?.(true)
-        return
-      }
-      await new Promise((r) => setTimeout(r, 500))
-      if (Date.now() - startTime >= timeout) {
-        ElMessage.error(`打印超时(${Math.floor(timeout / 1000)}秒)`)
-        callback?.(false)
-        pending = false
-      }
-    }
-    return
-  }
-
-  lodop.PRINT()
-  callback?.(false)
-}

src/views/order/factoryOrderNew/index.vue

@@ -977,8 +977,7 @@ import {
 import BigNumber from 'bignumber.js'
 import BigNumber from 'bignumber.js'
 import { filePath } from '@/api/axios'
 import { filePath } from '@/api/axios'
 import { OrderData } from '@/types/api/podMakeOrder'
 import { OrderData } from '@/types/api/podMakeOrder'
-import useLodop from '@/utils/hooks/useLodop'
-import { printWithLodop } from '@/utils/lodopPrinter'
+import useLodop, { LODOPObject } from '@/utils/hooks/useLodop'
 import LogisticsWaySelect from '@/views/logistics/components/LogisticsWaySelect'
 import LogisticsWaySelect from '@/views/logistics/components/LogisticsWaySelect'
 import ProductTypeFilter from './component/ProductTypeFilter.vue'
 import ProductTypeFilter from './component/ProductTypeFilter.vue'
 import ConfirmOrderDialog from './component/ConfirmOrderDialog.vue'
 import ConfirmOrderDialog from './component/ConfirmOrderDialog.vue'
@@ -1470,7 +1469,9 @@ const baseProductColumns = computed(() => [
     render: (row: ProductListData) => {
     render: (row: ProductListData) => {
       return (
       return (
         <span>
         <span>
-          {new BigNumber(row.templatePrice ?? 0).plus(row.craftPrice ?? 0).toString()}
+          {new BigNumber(row.templatePrice ?? 0)
+            .plus(row.craftPrice ?? 0)
+            .toString()}
         </span>
         </span>
       )
       )
     },
     },
@@ -1976,14 +1977,131 @@ const printOrder = async (
   data: OrderData,
   data: OrderData,
   callback: (status: boolean) => void,
   callback: (status: boolean) => void,
 ) => {
 ) => {
-  await printWithLodop({
-    getCLodop: () => getCLodop(null, null),
-    printer: sheetPrinter.value,
-    data,
-    callback,
-    baseUrl: filePath,
+  const lodop = getCLodop(null, null)
+  if (!lodop) return
+  lodop.PRINT_INIT('打印内容')
+  const printerIndex = lodop.SET_PRINTER_INDEX(sheetPrinter.value)
+  console.log(
+    'printerIndex',
+    printerIndex,
+    `sheetPrinter.value:${sheetPrinter.value}`,
+  )
+  if (!printerIndex) {
+    ElMessage.error('打印机设置失败')
+    callback && callback(false)
+    return
+  }
+  if (data.filePath) {
+    const strURL = /^https?:/i.test(data.filePath)
+      ? data.filePath
+      : filePath + data.filePath
+    const pdfData = /^https?:/i.test(strURL)
+      ? await downloadPDF(strURL)
+      : strURL
+    lodop.ADD_PRINT_PDF(0, 0, '100%', '100%', pdfData)
+  } else {
+    lodop.SEND_PRINT_RAWDATA(data.fileData || '')
+  }
+  console.log('lodop.CVERSION', lodop.CVERSION)
+  if (lodop.CVERSION) {
+    const startTime = Date.now()
+    const jobCode = await lodopCall((lodop) => {
+      lodop.SET_PRINT_MODE('CATCH_PRINT_STATUS', true)
+      return lodop.PRINT()
+    })
+    console.log('jobCode', jobCode)
+    // eslint-disable-next-line no-constant-condition
+    while (true) {
+      const ok = await lodopCall((lodop) =>
+        lodop.GET_VALUE('PRINT_STATUS_OK', jobCode),
+      )
+      console.log('PRINT_STATUS_OK:', jobCode, `ok: ${ok}`)
+      if (ok == 1) {
+        console.log('打印成功')
+        // 打印状态：成功
+        callback && callback(true)
+        return
+      }
+      // 如果打印状态表示未成功或者返回了空，继续获取任务是否存在
+      const exist = await lodopCall((lodop) =>
+        lodop.GET_VALUE('PRINT_STATUS_EXIST', jobCode),
+      )
+      console.log(
+        '[LODOP] PRINT_STATUS OK,EXIST',
+        jobCode,
+        `ok:${ok}`,
+        `exist:${exist}`,
+        `jobCode:${jobCode}`,
+        `(${Date.now() - startTime}ms)`,
+      )
+      if (exist == 0) {
+        console.log('任务不存在了', `exist:${exist}`)
+        // 任务不存在了
+        callback && callback(true)
+        return
+      }
+
+      await new Promise((r) => setTimeout(r, 500))
+      if (Date.now() - startTime >= 30000) {
+        console.log('打印超时(30秒)')
+        ElMessage.error('打印超时(30秒)')
+        callback && callback(false)
+        return
+      }
+    }
+  } else {
+    lodop.PRINT()
+    callback && callback(false)
+  }
+}
+let _lodop: LODOPObject | null = null
+let _lodopCallback: { [key: string]: (value: string) => void } = {}
+const lodopCall = (fn: (lodop: LODOPObject) => string) => {
+  if (!_lodop) {
+    _lodop = getCLodop(null, null)
+    if (!_lodop) return
+    _lodop.On_Return_Remain = true
+    _lodop.SET_PRINT_MODE('CATCH_PRINT_STATUS', true)
+    _lodopCallback = {}
+    _lodop.On_Return = (id, value) => {
+      console.log('lodopCall return', id, JSON.stringify(value))
+      const cb = _lodopCallback[id]
+      if (!cb) return
+      delete _lodopCallback[id]
+      cb(value)
+    }
+  }
+
+  return new Promise((resolve) => {
+    if (!_lodop) return
+    const id = fn(_lodop)
+    console.log('lodopCall', id)
+    _lodopCallback[id] = resolve
   })
   })
 }
 }
+const downloadPDF = async (url: string): Promise<string> => {
+  if (!/^https?:/i.test(url)) return url
+
+  const headers: Record<string, string> = {}
+  const token = localStorage.getItem('token')
+  if (token) headers['jwt-token'] = token
+
+  const response = await fetch(url, { headers })
+  if (!response.ok) {
+    console.error(
+      `PDF download failed: ${response.status} ${response.statusText}`,
+    )
+    return ''
+  }
+
+  const arrayBuffer = await response.arrayBuffer()
+  const bytes = new Uint8Array(arrayBuffer)
+  let binary = ''
+  for (let i = 0; i < bytes.byteLength; i++) {
+    binary += String.fromCharCode(bytes[i])
+  }
+  return 'data:application/pdf;base64,' + btoa(binary)
+}
 const handleDownloadMaterial = async () => {
 const handleDownloadMaterial = async () => {
   if (!ensureSelection()) return
   if (!ensureSelection()) return
   const usePodOrderDownloadStatuses = ['PENDING_DELIVERY', 'SUSPEND']
   const usePodOrderDownloadStatuses = ['PENDING_DELIVERY', 'SUSPEND']