在Chrome浏览器上删除NPAPI后替代Jzebra / QZ Java原始打印插件 [英] Alternative to Jzebra/QZ Java Raw Print Plugin after NPAPI being dropped on Chrome Browser
问题描述
我们都知道NPAPI将在几个月内完全从Chrome中删除。
什么是Jzebra / QZ Java插件的替代品，它可以实现原始打印（发送原始的ESC / P命令）到POS打印机？
是否有Chrome API（HTML5和Javascript）能够替换浏览器和本地安装的POS打印机在USB或以太网中？
是否有Chrome API（HTML5和Javascript ），能够取代浏览器与USB或以太网中本地安装的POS打印机之间的通信？
关于HTML5和JavaScript，该解决方案往往涉及WebSocket到本地主机或启用云的打印机。
这个HTTP / WebSockets设计被使用：
- Zebra 链接操作系统和 Cloud Connect （用于标签打印等）
- Epson
- Dymo ePOS-Device （用于收据，显示，条形码扫描器） http://developers.dymo.com/2015/09/24/dymo-label-framework-javascript-library-2-0-open-beta-2/rel =nofollow noreferrer> JavaScript Framework 2.0 （用于标签打印等）
- PrintNode >
- Google Cloud Print
- QZ托盘软件（标签，收据，任何原始的，PDF，HTML ，USB缩放）
关于销售点特定打印，我一直无法找到满足这些需求的现成解决方案（纯HTML5和JavaScript），因此无论是安装在桌面上的中间件还是服务器端的中间件，目前实现你所描述的方式。
完整免责声明，我们是QZ Tray的作者。
We all know that NPAPI will be completely removed from Chrome in a few months.
What would be an alternative to the Jzebra/QZ Java plugin that makes raw printing (sending raw ESC/P commands) to POS printers?
Is there a Chrome API (HTML5 and Javascript) that will be able to replace the communication between the browser and the locally installed POS printers in USB or Ethernet?
Is there a Chrome API (HTML5 and Javascript) that will be able to replace the communication between the browser and the locally installed POS printers in USB or Ethernet?
In regards to HTML5 and JavaScript, the solution tends to involve WebSocket to localhost, or cloud-enabled printers.
This HTTP/WebSockets design is used by:
- Zebra Link-OS and Cloud Connect (for label printing, etc)
- Epson ePOS-Device (for receipts, display, barcode scanner)
- Dymo JavaScript Framework 2.0 (for label printing, etc)
- PrintNode
- Google Cloud Print
- QZ Tray software (labels, receipts, anything raw, PDFs, HTML, USB Scales)
In regards to Point-Of-Sale specific printing, I have been unable to locate a ready solution that meets these needs (pure HTML5 and JavaScript), so either a Desktop-installed middle-ware or a server-side middle-ware is currently the way to achieve what you are describing.
Full disclaimer, we're the authors of QZ Tray.
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