客户端打印优化

package.json

@@ -1,6 +1,6 @@
 {
   "name": "JUSTAR",
-  "version": "2.1.6",
+  "version": "2.2.0",
   "description": "钜星科技便民问诊系统",
   "main": "src/index.js",
   "scripts": {

src/js/main.js

@@ -159,7 +159,7 @@ let main ={
           }
         },
         {
-          label:'版本号:2.1.9',
+          label:'版本号:2.2.0',
           icon: respath + path.sep+ "static"+ path.sep+"images"+ path.sep+"paste.png",
         },]
     });

src/js/setting/print_monitor.js

@@ -72,6 +72,12 @@ let print_monitor={
               fs.readFile(print_url,'utf8',(err,data) =>{
                 if(err){
                   log.error("获取打印机缓存失败");
+                }else {
+                    if(data.length == 0){
+                        data = {
+                            listPrinter: listPrinter,
+                            pdf_url: pdf_url
+                        }
                     }else{
                         let printer_json = JSON.parse(data);
                         defaultPrinter = printer_json.printer_name;
@@ -80,6 +86,7 @@ let print_monitor={
                             defaultPrinter: defaultPrinter,
                             pdf_url: pdf_url
                         }
+                    }
                   win.show();
                   let json_data =  JSON.stringify(data);
                   log.info("打印机列表数据【"+json_data+"】")