节点JS-使用打印机(硬件) [英] Node JS - Use Printer (Hardware)

问题描述

我正在使用Angular JS和Node JS开发应用程序，我需要查看用户机器中所有可用的打印机，让用户选择其中一台并打印收据.

I'm developing an application with Angular JS and Node JS where I need to see all available printers in the user's machine, let the user select one of them and print a receipt.

有没有办法做到这一点?

Is there a way to achieve this?

推荐答案

我做了一个这样的应用程序.我使用 http ://nwjs.io/和注释中的模块: https://www.npmjs .com/package/printer ，这是此模块的工作代码，该模块在默认打印机中原始打印文件:

I did an application like that.. I did it using http://nwjs.io/ and the module in the comment: https://www.npmjs.com/package/printer, here is a working code with this module printing raw in the default printer a file:

var printer = require('printer');
var fs = require('fs');

var info = fs.readFileSync('ticket.txt').toString();

function sendPrint() {
  printer.printDirect({
    data: info,
    type: 'RAW',
    success: function (jobID) {
      console.log("ID: " + jobID);
    },
    error: function (err) {
      console.log('printer module error: '+err);
      throw err;
    }
  });
}

sendPrint();

您可以对其进行修改，以使用getPrinters()方法枚举所有已安装的打印机，然后允许用户选择所需的打印机.

you can adapt it to use the getPrinters() method to enumerate all installed printers and then allow the user to select the desired one.

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