search

Home  >  Article  >  Web Front-end  >  How to connect printer in javaScript

How to connect printer in javaScript

亚连
亚连Original
2018-06-14 15:41:252994browse

Below I will share with you an example of using javaScript to link a printer and print a receipt. It has a good reference value and I hope it will be helpful to everyone.

is as follows: 

<%@ page contentType="text/html;charset=UTF-8"%>
<%@ include file="/webpage/include/taglib.jsp"%>
<!-- <!DOCTYPE html> -->
<html>
<head>
<meta name="decorator" content="default" />
<script type="text/javascript" src="${ctxStatic}/jquery-ztree/3.5.12/js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="${ctxStatic}/newStyle/jsPdf.debug.js"></script>
<script type="text/javascript" src="${ctxStatic}/newStyle/html2canvas.js"></script>
<script type="text/javascript">
function doPrint(){
 
   bdhtml=window.document.body.innerHTML; 
   sprnstr="<!--startprint-->"; 
   eprnstr="<!--b-->"; 
   prnhtml=bdhtml.substr(bdhtml.indexOf(sprnstr)+17); 
   prnhtml=prnhtml.substring(0,prnhtml.indexOf(eprnstr)); 
   window.document.body.innerHTML=prnhtml; 
   window.print(); 
   top.layer.closeAll();
   
}
function closes (){
  top.layer.closeAll();
}

function downPdf(){
 document.getElementById("dayin").style.display = "none";
 document.getElementById("baocun").style.display = "none";
  html2canvas(document.body, {
   onrendered:function(canvas) {
    var contentWidth = canvas.width;
    var contentHeight = canvas.height;
    //一页pdf显示html页面生成的canvas高度;
    var pageHeight = contentWidth / 592.28 * 841.89;
    //未生成pdf的html页面高度
    var leftHeight = contentHeight;
    //pdf页面偏移
    var position = 0;
    //a4纸的尺寸[595.28,841.89]，html页面生成的canvas在pdf中图片的宽高
    var imgWidth = 595.28;
    var imgHeight = 592.28/contentWidth * contentHeight;
    var pageData = canvas.toDataURL(&#39;image/jpeg&#39;, 1.0);
    var pdf = new jsPDF(&#39;&#39;, &#39;pt&#39;, &#39;a4&#39;);
    //有两个高度需要区分，一个是html页面的实际高度，和生成pdf的页面高度(841.89)
    //当内容未超过pdf一页显示的范围，无需分页
    if (leftHeight < pageHeight) {
     pdf.addImage(pageData, &#39;JPEG&#39;, 0, 0, imgWidth, imgHeight );
    } else {
     while(leftHeight > 0) {
      pdf.addImage(pageData, &#39;JPEG&#39;, 0, position, imgWidth, imgHeight)
      leftHeight -= pageHeight;
      position -= 841.89;
      //避免添加空白页
      if(leftHeight > 0) {
       pdf.addPage();
      }
     }
    }
    pdf.save(document.getElementById("emNo").innerText+"("+document.getElementById("dt").innerText+&#39;).pdf&#39;);
   }
  })
  document.getElementById("baocun").style.display = "";
  document.getElementById("dayin").style.display = "";
}
</script>
</head>
<body >
<p style="width: 800px;height: 35px;">
 <button id="dayin" onclick="doPrint()" class="" style="border-bottom:1px solid #0071ce;float: right;background: #0071ce;color:rgb(255, 255, 255);font-size:13px;margin-right: 10px; margin-top: 10px;"><i class="fa fa-print"></i>打印</button>
 <button id="baocun" onclick="downPdf()" class="" style="border-bottom:1px solid #0071ce;float: right;background: #0071ce;color:rgb(255, 255, 255);font-size:13px;margin-right: 10px; margin-top: 10px;"><i class="fa fa-print"></i>保存</button>
</p>
<!--startprint-->
<br>
 <p id="print" style="padding-left: 15px; padding-right: 15px;">
  <table style="width: 100%">
   <tr>
    <td colspan="8" style="text-align: center;font-size: 20px;">新XXXXX物业服务中心</td>
   </tr>
   <tr >
    <td colspan="8"style="text-align: center;font-size: 14px;padding-top: 10px;">收费单据</td>
   </tr>
   <tr>
    <td colspan="2">收票类型：电费</td>
    <td colspan="3"></td>
    <td>缴费日期：</td>
    <td colspan="2" id="dt">${emfee.dt}</td>
   </tr>
   <tr>
    <td style="text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">户名</td>
    <td style="text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.userName}</td>
    <td style="text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">表号</td>
    <td id="emNo" colspan="2" style="text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.emNo}</td>
    <td style=" text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">房号</td>
    <td colspan="2" style=" text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.num}</td>
   </tr>
   <tr>
    <td style=" text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">起止时间</td>
    <td colspan="3" style=" text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.emDt}至${emfee.startDt}</td>
    <td style=" text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">缴费金额</td>
    <td style=" text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.tranMoney}</td>
    <td style="text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">倍率</td>
    <td style="text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.emRate}</td>
   </tr>
   <tr>
    <td rowspan="6" style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;">用电量</td>
    <td style="width: 12%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">时段</td>
    <td colspan="2" style="width: 13%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">起止表码</td>
    <td style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">倍率前用量</td>
    <td style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">本次用量</td>
    <td style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">单价</td>
    <td style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">本次电费</td>
   </tr>
   <tr>
    <td style="width: 12%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">尖</td>
    <td colspan="2" style="width: 13%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.mosaicJian}</td>
    <td style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.jianQuantity}</td>
    <td style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.blJian}</td>
    <td style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.jian}</td>
    <td style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.jianFee}</td>
   </tr>
   <tr>
    <td style="width: 12%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">峰</td>
    <td colspan="2" style="width: 13%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.mosaicFeng}</td>
    <td style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.fengQuantity}</td>
    <td style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.blFeng}</td>
    <td style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.feng}</td>
    <td style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.fengFee}</td>
   </tr>
   <tr>
    <td style="width: 12%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">平</td>
    <td colspan="2" style="width: 13%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.mosaicPing}</td>
    <td style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.pingQuantity}</td>
    <td style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.blPing}</td>
    <td style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.ping}</td>
    <td style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.pingFee}</td>
   </tr>
   <tr>
    <td style="width: 12%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">谷</td>
    <td colspan="2" style="width: 13%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.mosaicGu}</td>
    <td style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.guQuantity}</td>
    <td style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.blGu}</td>
    <td style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.gu}</td>
    <td style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.guFee}</td>
   </tr>
   <tr>
    <td style="width: 12%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">总</td>
    <td colspan="2" style="width: 13%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.mosaicZong}</td>
    <td style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.quantity}</td>
    <td style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">${emfee.blquantity}</td>
    <td style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">——</td>
    <td style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;">${emfee.electFee}</td>
   </tr>
   <tr>
    <td rowspan="2" style="text-align: center;font-size: 14px;height:40px;border:1px solid #000000;">电费</td>
    <td style="width: 12%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">上次剩余(元)</td>
    <td colspan="2" style="width: 13%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">本期已用(元)</td>
    <td colspan="2" style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">本次缴费(元)</td>
    <td colspan="2" style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;border-bottom:0px solid #000000;">本次剩余(元)</td>
   </tr>
   <tr>
    <td style="width: 12%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;">${emfee.lastRemainQ}</td>
    <td colspan="2" style="width: 13%; text-align: center ;font-size: 14px;height: 40px;border:1px solid #000000;">${emfee.electFee}</td>
    <td colspan="2" style="width: 12%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;">${emfee.tranMoney}</td>
    <td colspan="2" style="width: 13%; text-align: center;font-size: 14px;height: 40px;border:1px solid #000000;">${emfee.remainQ}</td>
   </tr>
   <tr>
    <td colspan="2" style="text-align: center;font-size: 14px;height: 40px;"></td>
    <td style="text-align: center;font-size: 14px;height: 40px;">收款人：</td>
    <td colspan="2" style="text-align: center;font-size: 14px;height: 40px;"></td>
    <td style="text-align:center ;font-size: 14px;height: 40px;">付款人：</td>
    <td colspan="2" style="text-align:center ;font-size: 14px;height: 40px;"></td>
   </tr>
  </table>
 <!--b-->
 </p>
</body>
</html>

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

Related articles:

What are the methods for debugging js scripts?

How to implement the search box using Angular

Detailed introduction to interpolation in vue

vueHow to output original html?

The above is the detailed content of How to connect printer in javaScript. For more information, please follow other related articles on the PHP Chinese website!

JavaScript html angular JS
Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：How BrowserRouter cooperates with react-router serverNext article：How BrowserRouter cooperates with react-router server

Related articles

See more