这篇文章主要介绍了javaScript如何连接打印机打印小票,具有一定借鉴价值,感兴趣的朋友可以参考下,希望大家阅读完这篇文章之后大有收获,下面让小编带着大家一起了解一下。
如下所示:
<%@ 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('image/jpeg', 1.0); var pdf = new jsPDF('', 'pt', 'a4'); //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, 'JPEG', 0, 0, imgWidth, imgHeight ); } else { while(leftHeight > 0) { pdf.addImage(pageData, 'JPEG', 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+').pdf'); } }) document.getElementById("baocun").style.display = ""; document.getElementById("dayin").style.display = ""; } </script> </head> <body > <div > <button id="dayin" onclick="doPrint()" class="" ><i class="fa fa-print"></i>打印</button> <button id="baocun" onclick="downPdf()" class="" ><i class="fa fa-print"></i>保存</button> </div> <!--startprint--> <br> <div id="print" > <table > <tr> <td colspan="8" >新XXXXX物业服务中心</td> </tr> <tr > <td colspan="8">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 >户名</td> <td >${emfee.userName}</td> <td >表号</td> <td id="emNo" colspan="2" >${emfee.emNo}</td> <td >房号</td> <td colspan="2" >${emfee.num}</td> </tr> <tr> <td >起止时间</td> <td colspan="3" >${emfee.emDt}至${emfee.startDt}</td> <td >缴费金额</td> <td >${emfee.tranMoney}</td> <td >倍率</td> <td >${emfee.emRate}</td> </tr> <tr> <td rowspan="6" >用电量</td> <td >时段</td> <td colspan="2" >起止表码</td> <td >倍率前用量</td> <td >本次用量</td> <td >单价</td> <td >本次电费</td> </tr> <tr> <td >尖</td> <td colspan="2" >${emfee.mosaicJian}</td> <td >${emfee.jianQuantity}</td> <td >${emfee.blJian}</td> <td >${emfee.jian}</td> <td >${emfee.jianFee}</td> </tr> <tr> <td >峰</td> <td colspan="2" >${emfee.mosaicFeng}</td> <td >${emfee.fengQuantity}</td> <td >${emfee.blFeng}</td> <td >${emfee.feng}</td> <td >${emfee.fengFee}</td> </tr> <tr> <td >平</td> <td colspan="2" >${emfee.mosaicPing}</td> <td >${emfee.pingQuantity}</td> <td >${emfee.blPing}</td> <td >${emfee.ping}</td> <td >${emfee.pingFee}</td> </tr> <tr> <td >谷</td> <td colspan="2" >${emfee.mosaicGu}</td> <td >${emfee.guQuantity}</td> <td >${emfee.blGu}</td> <td >${emfee.gu}</td> <td >${emfee.guFee}</td> </tr> <tr> <td >总</td> <td colspan="2" >${emfee.mosaicZong}</td> <td >${emfee.quantity}</td> <td >${emfee.blquantity}</td> <td >——</td> <td >${emfee.electFee}</td> </tr> <tr> <td rowspan="2" >电费</td> <td >上次剩余(元)</td> <td colspan="2" >本期已用(元)</td> <td colspan="2" >本次缴费(元)</td> <td colspan="2" >本次剩余(元)</td> </tr> <tr> <td >${emfee.lastRemainQ}</td> <td colspan="2" >${emfee.electFee}</td> <td colspan="2" >${emfee.tranMoney}</td> <td colspan="2" >${emfee.remainQ}</td> </tr> <tr> <td colspan="2" ></td> <td >收款人:</td> <td colspan="2" ></td> <td >付款人:</td> <td colspan="2" ></td> </tr> </table> <!--b--> </div> </body> </html>
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