feat：打印消息缓存

nx/helper/print.js

@@ -12,7 +12,7 @@ export default {
         clearInterval(printer.intervalID)
         printer.socketTask.close()
       }
-    }, 20000)
+    }, 10000)
   },
   //开始心跳
   heartbeatStart(printer) {
@@ -44,7 +44,7 @@ export default {
       printer = {
         isOpen: false,
         isOpening: false, //打开中
-        socketTask: false,
+        socketTask: null,
         timeoutID: -1,
         intervalID: -1,
         reConnectCount: 0, //重新连接次数
@@ -77,7 +77,6 @@ export default {
       complete: () => {}
     })
     if (!socketTask) return
-    // console.log(socketTask);
     printer.socketTask = socketTask
     this.printMap.set(printServerIp, printer)
 
@@ -89,6 +88,18 @@ export default {
       uni.$emit('printStatus', {})
       console.log(socketTask)
       console.log(printServerIp + ': WebSocket连接成功。。。')
+
+      // 发送 pending 消息
+      if (printer.pendingMessages?.length) {
+        printer.pendingMessages.forEach(msg => {
+          try {
+            printer.socketTask.send({ data: msg })
+          } catch (e) {
+            console.error('发送 pending 消息失败:', e)
+          }
+        })
+        printer.pendingMessages = []
+      }
       this.heartbeatStart(printer)
       this.checkConnect(printer) //检测连接是否正常
     })
@@ -104,7 +115,7 @@ export default {
     socketTask.onClose(res => {
       printer.isOpen = false
       printer.isOpening = false
-      printer.socketTask = false
+      printer.socketTask = null
       uni.$emit('printStatus', {})
       // console.log(printer.printServerIp + ": WebSocket连接关闭。。。");
       this.heartbeatClear(printer)
@@ -119,7 +130,7 @@ export default {
     socketTask.onError(res => {
       printer.isOpen = false
       printer.isOpening = false
-      printer.socketTask = false
+      printer.socketTask = null
       uni.$emit('printStatus', {})
       // console.log(printServerIp + ": WebSocket连接失败。。。");
       // console.log(res);
@@ -175,20 +186,38 @@ export default {
   send(printServerIp, data) {
     let printer = this.printMap.get(printServerIp)
     if (!printer) {
-      //不存在则打开
+      // 创建新 printer 对象（尚未连接）
+      printer = {
+        isOpen: false,
+        isOpening: false,
+        socketTask: null,
+        timeoutID: -1,
+        intervalID: -1,
+        reConnectCount: 0, //重新连接次数
+        printServerIp: printServerIp,
+        lastReceiveMessageTime: new Date().getTime(),
+        pendingMessages: [data]
+      }
+      this.printMap.set(printServerIp, printer)
       this.open(printServerIp)
+      return
     }
-    if (printer?.socketTask) {
+    if (printer.isOpen && printer.socketTask?.readyState === 1) {
       printer.socketTask.send({
         data: data
       })
+    } else {
+      // 连接中 or 已断开 → 缓存
+      printer.pendingMessages = printer.pendingMessages || []
+      printer.pendingMessages.push(data)
     }
   },
   //获取打印模板并执行打印
-  getPrintTemplateAndPrint(businessSubId) {
+  getPrintTemplateAndPrint(businessSubId, callback) {
     getBusinessSubSample(businessSubId)
-      .then(res => {
-        this.print(res)
+      .then(async res => {
+        await this.print(res)
+        callback && callback()
       })
       .catch(err => {
         console.log(err)
@@ -197,7 +226,7 @@ export default {
   //调用send方法执行打印
   print(businessSubData) {
     const { printTemplate } = businessSubData
-    if (!printTemplate) return uni.showToast({ title: '样品未配置打印模板' })
+    if (!printTemplate) return uni.showToast({ title: '样品未配置打印模板', icon: 'error' })
     const me = this
     me.getReportData(printTemplate, function (res) {
       const reportData = {