fix: 尝试修复打印机任务并发导致打印内容错乱问题 #1001679

src/views/order/factoryOrderNew/index.vue

@@ -2896,101 +2896,108 @@ const handleSeedingWall = (type: 'print' | 'sort') => {
   podOrderVisible.value = true
 }
 
-const printOrder = async (
+/** LODOP 单例不可并发，打印串行 */
+let printOrderChain: Promise<void> = Promise.resolve()
+
+const printOrder = (
   data: OrderData,
   callback: (status: boolean) => void,
 ) => {
-  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 = filePath + data.filePath
-    const isHttpsPdf = /(https):\/\/([^/]+)/i.test(strURL)
-    console.log('[printOrder] label source', {
-      id: data.id,
-      hasFilePath: !!data.filePath,
-      hasFileData: !!data.fileData,
-      isHttpsPdf,
-      strURL,
-    })
-    const pdfPayload = isHttpsPdf ? downloadPDF(strURL) : strURL
-    console.log('[printOrder] pdf payload meta', {
-      mode: isHttpsPdf ? 'base64' : 'url',
-      length: pdfPayload?.length || 0,
-      preview: pdfPayload?.slice(0, 30),
-    })
-    lodop.ADD_PRINT_PDF(0, 0, '100%', '100%', pdfPayload)
-  } else {
-    console.log('[printOrder] raw payload meta', {
-      id: data.id,
-      hasFilePath: !!data.filePath,
-      fileDataLength: data.fileData?.length || 0,
-      fileDataPreview: data.fileData?.slice(0, 30),
-    })
-    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
-      }
+  const run = async () => {
+    const lodop = getCLodop(null, null)
+    if (!lodop) {
+      callback && callback(false)
+      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 = filePath + data.filePath
+      const isHttpsPdf = /(https):\/\/([^/]+)/i.test(strURL)
+      console.log('[printOrder] label source', {
+        id: data.id,
+        hasFilePath: !!data.filePath,
+        hasFileData: !!data.fileData,
+        isHttpsPdf,
+        strURL,
+      })
+      const pdfPayload = isHttpsPdf ? downloadPDF(strURL) : strURL
+      console.log('[printOrder] pdf payload meta', {
+        mode: isHttpsPdf ? 'base64' : 'url',
+        length: pdfPayload?.length || 0,
+        preview: pdfPayload?.slice(0, 30),
+      })
+      lodop.ADD_PRINT_PDF(0, 0, '100%', '100%', pdfPayload)
+    } else {
+      console.log('[printOrder] raw payload meta', {
+        id: data.id,
+        hasFilePath: !!data.filePath,
+        fileDataLength: data.fileData?.length || 0,
+        fileDataPreview: data.fileData?.slice(0, 30),
+      })
+      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: ${ok}`)
+        if (ok == 1) {
+          console.log('打印成功')
+          callback && callback(true)
+          return
+        }
+        const exist = await lodopCall((lodop) =>
+          lodop.GET_VALUE('PRINT_STATUS_EXIST', jobCode),
+        )
+        console.log(
+          '[LODOP] PRINT_STATUS OK,EXIST',
+          jobCode,
+          `ok:${ok}`,
+          `exist:${exist}`,
+          `jobCode:${jobCode}`,
+          `(${Date.now() - startTime}ms)`,
+        )
+        if (exist == 0) {
+          console.log('任务不存在了', `exist:${exist}`)
+          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
+        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)
     }
-  } else {
-    lodop.PRINT()
-    callback && callback(false)
   }
+
+  printOrderChain = printOrderChain.then(run, run)
 }
 let _lodop: LODOPObject | null = null
 let _lodopCallback: { [key: string]: (value: string) => void } = {}

src/views/order/podUs/PodMakeOrder.vue

@@ -1445,15 +1445,24 @@ const handlePrinterChange = (value: string) => {
   emit('set-printer', value)
 }
 
+/** 已自动打印过的订单，避免 WS 回写清掉 printResult 后重复打印 */
+const autoPrintedIds = new Set<number>()
+
 const print = (data: OrderData, forcePrint = false, callback?: () => void) => {
   const _boxIndex = boxIndex.value
+  const orderId = data.id
 
-  if (!forcePrint && data.printResult) {
+  if (
+    !forcePrint &&
+    (data.printResult || (orderId != null && autoPrintedIds.has(orderId)))
+  ) {
     callback && callback()
     return
   }
+  if (!forcePrint && orderId != null) autoPrintedIds.add(orderId)
 
   props.printOrder(data, (status: boolean) => {
+    if (!status && orderId != null) autoPrintedIds.delete(orderId)
     callback && callback()
     const item = podBoxList.value?.find((item) => item.box === _boxIndex)
     if (item && item.data) {