打印 DIV 内容的最佳方式是什么？
【问题讨论】：
标签： javascript jquery html printing
最好的方法是将 div 的内容提交到服务器并打开一个新窗口，服务器可以将这些内容放入新窗口中。
如果这不是一个选项，您可以尝试使用 javascript 之类的客户端语言来隐藏页面上除该 div 之外的所有内容，然后打印页面...
【讨论】：
创建一个单独的打印样式表，隐藏除您要打印的内容之外的所有其他元素。加载时使用'media="print" 标记它：
<link rel="stylesheet" type="text/css" media="print" href="print.css" />
这允许您为打印输出加载完全不同的样式表。
如果你想强制浏览器的打印对话框出现在页面上，你可以使用 JQuery 在加载时这样做：
$(function() { window.print(); });
或触发您想要的任何其他事件，例如用户单击按钮。
【讨论】：
【讨论】：
与早期版本相比略有变化 - 在 CHROME 上测试
function PrintElem(elem)
{
var mywindow = window.open('', 'PRINT', 'height=400,width=600');
mywindow.document.write('<html><head><title>' + document.title + '</title>');
mywindow.document.write('</head><body >');
mywindow.document.write('<h1>' + document.title + '</h1>');
mywindow.document.write(document.getElementById(elem).innerHTML);
mywindow.document.write('</body></html>');
mywindow.document.close(); // necessary for IE >= 10
mywindow.focus(); // necessary for IE >= 10*/
mywindow.print();
mywindow.close();
return true;
}
【讨论】：
mywindow.document.write(data); 添加这个：mywindow.document.write('<script type="text/javascript">$(window).load(function() { window.print(); window.close(); });</script>'); 并删除：mywindow.print(); 和 mywindow.close();
我认为有更好的解决方案。让您的 div 打印覆盖整个文档，但仅限于打印时：
@media print {
.myDivToPrint {
background-color: white;
height: 100%;
width: 100%;
position: fixed;
top: 0;
left: 0;
margin: 0;
padding: 15px;
font-size: 14px;
line-height: 18px;
}
}
【讨论】：
从这里https://forums.asp.net/t/1261525.aspx
<html>
<head>
<script language="javascript">
function printdiv(printpage) {
var headstr = "<html><head><title></title></head><body>";
var footstr = "</body>";
var newstr = document.all.item(printpage).innerHTML;
var oldstr = document.body.innerHTML;
document.body.innerHTML = headstr + newstr + footstr;
window.print();
document.body.innerHTML = oldstr;
return false;
}
</script>
<title>div print</title>
</head>
<body>
//HTML Page //Other content you wouldn't like to print
<input name="b_print" type="button" class="ipt" onClick="printdiv('div_print');" value=" Print ">
<div id="div_print">
<h1 style="Color:Red">The Div content which you want to print</h1>
</div>
//Other content you wouldn't like to print //Other content you wouldn't like to print
</body>
</html>
【讨论】：
这是我的 jquery 打印插件
(function ($) {
$.fn.printme = function () {
return this.each(function () {
var container = $(this);
var hidden_IFrame = $('<iframe></iframe>').attr({
width: '1px',
height: '1px',
display: 'none'
}).appendTo(container);
var myIframe = hidden_IFrame.get(0);
var script_tag = myIframe.contentWindow.document.createElement("script");
script_tag.type = "text/javascript";
script = myIframe.contentWindow.document.createTextNode('function Print(){ window.print(); }');
script_tag.appendChild(script);
myIframe.contentWindow.document.body.innerHTML = container.html();
myIframe.contentWindow.document.body.appendChild(script_tag);
myIframe.contentWindow.Print();
hidden_IFrame.remove();
});
};
})(jQuery);
【讨论】：
function printdiv(printdivname) {
var headstr = "<html><head><title>Booking Details</title></head><body>";
var footstr = "</body>";
var newstr = document.getElementById(printdivname).innerHTML;
var oldstr = document.body.innerHTML;
document.body.innerHTML = headstr+newstr+footstr;
window.print();
document.body.innerHTML = oldstr;
return false;
}
这将打印您想要的div 区域并将内容设置回原样。 printdivname 是要打印的div。
【讨论】：
我知道这是一个老问题，但我用 jQuery 解决了这个问题。
function printContents(id) {
var contents = $("#"+id).html();
if ($("#printDiv").length == 0) {
var printDiv = null;
printDiv = document.createElement('div');
printDiv.setAttribute('id','printDiv');
printDiv.setAttribute('class','printable');
$(printDiv).appendTo('body');
}
$("#printDiv").html(contents);
window.print();
$("#printDiv").remove();
}
CSS
@media print {
.non-printable, .fancybox-outer { display: none; }
.printable, #printDiv {
display: block;
font-size: 26pt;
}
}
【讨论】：
在 Opera 中，尝试：
print_win.document.write('</body></html>');
print_win.document.close(); // This bit is important
print_win.print();
print_win.close();
【讨论】：
我编写了一个插件来解决这种情况。我对那里的插件不满意，并着手制作更广泛/可配置的东西。
【讨论】：
与最佳答案相同，以防您需要像我一样打印图像：
如果您想打印图像：
function printElem(elem)
{
Popup(jQuery(elem).attr('src'));
}
function Popup(data)
{
var mywindow = window.open('', 'my div', 'height=400,width=600');
mywindow.document.write('<html><head><title>my div</title>');
mywindow.document.write('</head><body >');
mywindow.document.write('<img src="'+data+'" />');
mywindow.document.write('</body></html>');
mywindow.print();
mywindow.close();
return true;
}
【讨论】：
load 事件。没有它，您将打印空白页，因为未加载图像。 => $(popup).load(function(){ popup.focus(); popup.print(); });
虽然@BC 的答案是打印单页的最佳选择。
但是要使用 ctrl+P 同时打印多页 A4 尺寸的页面，以下解决方案可能会有所帮助。
@media print{
html *{
height:0px!important;
width:0px !important;
margin: 0px !important;
padding: 0px !important;
min-height: 0px !important;
line-height: 0px !important;
overflow: visible !important;
visibility: hidden ;
}
/*assing myPagesClass to every div you want to print on single separate A4 page*/
body .myPagesClass {
z-index: 100 !important;
visibility: visible !important;
position: relative !important;
display: block !important;
background-color: lightgray !important;
height: 297mm !important;
width: 211mm !important;
position: relative !important;
padding: 0px;
top: 0 !important;
left: 0 !important;
margin: 0 !important;
orphans: 0!important;
widows: 0!important;
overflow: visible !important;
page-break-after: always;
}
@page{
size: A4;
margin: 0mm ;
orphans: 0!important;
widows: 0!important;
}}
【讨论】：
这是一个适用于 IE 和 Chrome 的 IFrame 解决方案：
function printHTML(htmlString) {
var newIframe = document.createElement('iframe');
newIframe.width = '1px';
newIframe.height = '1px';
newIframe.src = 'about:blank';
// for IE wait for the IFrame to load so we can access contentWindow.document.body
newIframe.onload = function() {
var script_tag = newIframe.contentWindow.document.createElement("script");
script_tag.type = "text/javascript";
var script = newIframe.contentWindow.document.createTextNode('function Print(){ window.focus(); window.print(); }');
script_tag.appendChild(script);
newIframe.contentWindow.document.body.innerHTML = htmlString;
newIframe.contentWindow.document.body.appendChild(script_tag);
// for chrome, a timeout for loading large amounts of content
setTimeout(function() {
newIframe.contentWindow.Print();
newIframe.contentWindow.document.body.removeChild(script_tag);
newIframe.parentElement.removeChild(newIframe);
}, 200);
};
document.body.appendChild(newIframe);
}
【讨论】：
使用Jquery，只需使用这个函数：
<script>
function printContent(el){
var restorepage = $('body').html();
var printcontent = $('#' + el).clone();
$('body').empty().html(printcontent);
window.print();
$('body').html(restorepage);
}
</script>
您的打印按钮将如下所示：
<button id="print" onclick="printContent('id name of your div');" >Print</button>
编辑：如果您确实有需要保留的表单数据，克隆不会复制它，因此您只需要获取所有表单数据并在还原后将其替换为：
<script>
function printContent(el){
var restorepage = $('body').html();
var printcontent = $('#' + el).clone();
var enteredtext = $('#text').val();
$('body').empty().html(printcontent);
window.print();
$('body').html(restorepage);
$('#text').html(enteredtext);
}
</script>
<textarea id="text"></textarea>
【讨论】：
el 的方式很糟糕，尤其是在使用jQ 之后。最好简单地通过selector 并摆脱硬编码的#
el 之外的一些额外部分。我认为打印命令是在恢复正文时发送的。
我认为目前提出的解决方案有以下缺点：
我对上述解决方案进行了改进。这是我已经测试过的东西，它具有以下好处。
注意事项：
<script id="print-header" type="text/x-jquery-tmpl">
<html>
<header>
<title>Printing Para {num}</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<style>
body {
max-width: 300px;
}
</style>
</header>
<body onload="window.print()">
<h2>Printing Para {num} </h2>
<h4>https://math.tools</h4>
</script>
<script id="print-footer" type="text/x-jquery-tmpl">
</body>
</html>
</script>
<script>
$('.printthis').click(function() {
num = $(this).attr("data-id");
w = window.open();
w.document.write(
$("#print-header").html().replace("{num}",num) +
$("#para-" + num).html() +
$("#print-footer").html()
);
w.document.close();
w.focus();
//w.print(); Don't do this otherwise chrome won't work. Look at the onload on the body of the newly created window.
///w.close(); Don't do this otherwise chrome won't work
});
</script><script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<a class="btn printthis" data-id="1" href="#" title="Print Para 1"><i class="fa fa-print"></i> Print Para 1</a>
<a class="btn printthis" data-id="2" href="#" title="Print Para 2"><i class="fa fa-print"></i> Print Para 2</a>
<p class="para" id="para-1">
Para 1 : Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
<p class="para" id="para-2">
Para 2 : Lorem 2 ipsum 2 dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
【讨论】：
我使用Bill Paetzke 回答打印包含图像的 div，但它不适用于谷歌浏览器
我只需要添加这一行 myWindow.onload=function(){ 即可使其工作，这是完整的代码
<html>
<head>
<script type="text/javascript" src="http://jqueryjs.googlecode.com/files/jquery-1.3.1.min.js"> </script>
<script type="text/javascript">
function PrintElem(elem) {
Popup($(elem).html());
}
function Popup(data) {
var myWindow = window.open('', 'my div', 'height=400,width=600');
myWindow.document.write('<html><head><title>my div</title>');
/*optional stylesheet*/ //myWindow.document.write('<link rel="stylesheet" href="main.css" type="text/css" />');
myWindow.document.write('</head><body >');
myWindow.document.write(data);
myWindow.document.write('</body></html>');
myWindow.document.close(); // necessary for IE >= 10
myWindow.onload=function(){ // necessary if the div contain images
myWindow.focus(); // necessary for IE >= 10
myWindow.print();
myWindow.close();
};
}
</script>
</head>
<body>
<div id="myDiv">
This will be printed.
<img src="image.jpg"/>
</div>
<div>
This will not be printed.
</div>
<div id="anotherDiv">
Nor will this.
</div>
<input type="button" value="Print Div" onclick="PrintElem('#myDiv')" />
</body>
</html>
如果有人只需要打印一个带有 id 的 div，他就不需要加载 jquery
这是执行此操作的纯 JavaScript 代码
<html>
<head>
<script type="text/javascript">
function PrintDiv(id) {
var data=document.getElementById(id).innerHTML;
var myWindow = window.open('', 'my div', 'height=400,width=600');
myWindow.document.write('<html><head><title>my div</title>');
/*optional stylesheet*/ //myWindow.document.write('<link rel="stylesheet" href="main.css" type="text/css" />');
myWindow.document.write('</head><body >');
myWindow.document.write(data);
myWindow.document.write('</body></html>');
myWindow.document.close(); // necessary for IE >= 10
myWindow.onload=function(){ // necessary if the div contain images
myWindow.focus(); // necessary for IE >= 10
myWindow.print();
myWindow.close();
};
}
</script>
</head>
<body>
<div id="myDiv">
This will be printed.
<img src="image.jpg"/>
</div>
<div>
This will not be printed.
</div>
<div id="anotherDiv">
Nor will this.
</div>
<input type="button" value="Print Div" onclick="PrintDiv('myDiv')" />
</body>
</html>
我希望这可以帮助某人
【讨论】：
创建了可用于任何 HTML 元素的通用内容
HTMLElement.prototype.printMe = printMe;
function printMe(query){
var myframe = document.createElement('IFRAME');
myframe.domain = document.domain;
myframe.style.position = "absolute";
myframe.style.top = "-10000px";
document.body.appendChild(myframe);
myframe.contentDocument.write(this.innerHTML) ;
setTimeout(function(){
myframe.focus();
myframe.contentWindow.print();
myframe.parentNode.removeChild(myframe) ;// remove frame
},3000); // wait for images to load inside iframe
window.focus();
}
//usage
document.getElementById('xyz').printMe();
document.getElementsByClassName('xyz')[0].printMe();
希望这会有所帮助。
【讨论】：
接受的解决方案不起作用。 Chrome 正在打印空白页，因为它没有及时加载图像。这种方法有效：
编辑：在我发帖后似乎已接受的解决方案已被修改。为什么投反对票？这个解决方案也很有效。
function printDiv(divName) {
var printContents = document.getElementById(divName).innerHTML;
w = window.open();
w.document.write(printContents);
w.document.write('<scr' + 'ipt type="text/javascript">' + 'window.onload = function() { window.print(); window.close(); };' + '</sc' + 'ript>');
w.document.close(); // necessary for IE >= 10
w.focus(); // necessary for IE >= 10
return true;
}
【讨论】：
我修改了@BillPaetski 答案以使用 querySelector、添加可选 CSS、删除强制 H1 标记并使标题可选地指定或从窗口中拉出。它也不再自动打印并暴露内部结构，因此可以在包装器功能或您喜欢的情况下切换它们。
仅有的两个私有变量是 tmpWindow 和 tmpDoc，虽然我相信 title、css 和 elem 访问可能会有所不同，但应该假设所有函数参数都是私有的。
代码：function PrintElem(elem, title, css) {
var tmpWindow = window.open('', 'PRINT', 'height=400,width=600');
var tmpDoc = tmpWindow.document;
title = title || document.title;
css = css || "";
this.setTitle = function(newTitle) {
title = newTitle || document.title;
};
this.setCSS = function(newCSS) {
css = newCSS || "";
};
this.basicHtml5 = function(innerHTML) {
return '<!doctype html><html>'+(innerHTML || "")+'</html>';
};
this.htmlHead = function(innerHTML) {
return '<head>'+(innerHTML || "")+'</head>';
};
this.htmlTitle = function(title) {
return '<title>'+(title || "")+'</title>';
};
this.styleTag = function(innerHTML) {
return '<style>'+(innerHTML || "")+'</style>';
};
this.htmlBody = function(innerHTML) {
return '<body>'+(innerHTML || "")+'</body>';
};
this.build = function() {
tmpDoc.write(
this.basicHtml5(
this.htmlHead(
this.htmlTitle(title) + this.styleTag(css)
) + this.htmlBody(
document.querySelector(elem).innerHTML
)
)
);
tmpDoc.close(); // necessary for IE >= 10
};
this.print = function() {
tmpWindow.focus(); // necessary for IE >= 10*/
tmpWindow.print();
tmpWindow.close();
};
this.build();
return this;
}
DOMPrinter = PrintElem('#app-container');
DOMPrinter.print();
【讨论】：
<input> 元素的值。我如何使用它，包括用户输入的内容？
<input>、<select>、<textarea>组件的属性值、selected、default和innerText设置为它们的运行时值。有替代方案，但这不是这个脚本的问题，而是浏览器工作方式的问题，并通过输入、画布等获取文档的innerHTML 属性。
.attr('value',) 找到了解决方案。我什至已经为 textarea（通过附加）和复选框（.attr('checked',)）完成了它。我抱歉如果我没有充分考虑我的问题。
注意：这仅适用于启用 jQuery 的网站
这个很酷的技巧非常简单。它在 Google Chrome 浏览器中对我有用。 Firefox 不允许您在没有插件的情况下打印为 PDF。
var jqchild = document.createElement('script');
jqchild.src = "https://cdnjs.cloudflare.com/ajax/libs/jQuery.print/1.5.1/jQuery.print.min.js";
document.getElementsByTagName('body')[0].appendChild(jqchild);
$("#myDivWithStyles").print(); // Replace ID with yours
逻辑很简单。我们正在创建一个新的脚本标签并将其附加到结束正文标签的前面。我们在 HTML 中注入了一个 jQuery 打印扩展。用您自己的 Div 标签 ID 更改 myDivWithStyles。现在它负责准备一个可打印的虚拟窗口。
在任何网站上试用。唯一需要注意的是，有时复杂的 CSS 会导致样式丢失。但我们大多数时候都能得到内容。
【讨论】：
如果您想拥有原始文档中的所有样式（包括内联样式），您可以使用这种方法。
实施：
class PrintUtil {
static printDiv(elementId) {
let printElement = document.getElementById(elementId);
var printWindow = window.open('', 'PRINT');
printWindow.document.write(document.documentElement.innerHTML);
setTimeout(() => { // Needed for large documents
printWindow.document.body.style.margin = '0 0';
printWindow.document.body.innerHTML = printElement.outerHTML;
printWindow.document.close(); // necessary for IE >= 10
printWindow.focus(); // necessary for IE >= 10*/
printWindow.print();
printWindow.close();
}, 1000)
}
}
【讨论】：
下面的代码复制了查询选择器所针对的所有相关节点，复制了它们在屏幕上看到的样式，因为用于定位 css 选择器的许多父元素将丢失。如果子节点有很多样式，这会导致一些延迟。
理想情况下，您应该准备好打印样式表，但这适用于没有要插入的打印样式表并且您希望按照屏幕上显示的方式打印的用例。
如果您在此页面的浏览器控制台中复制以下项目，它将打印此页面上的所有代码sn-ps。
+function() {
/**
* copied from https://stackoverflow.com/questions/19784064/set-javascript-computed-style-from-one-element-to-another
* @author Adi Darachi https://stackoverflow.com/users/2318881/adi-darachi
*/
var copyComputedStyle = function(from,to){
var computed_style_object = false;
//trying to figure out which style object we need to use depense on the browser support
//so we try until we have one
computed_style_object = from.currentStyle || document.defaultView.getComputedStyle(from,null);
//if the browser dose not support both methods we will return null
if(!computed_style_object) return null;
var stylePropertyValid = function(name,value){
//checking that the value is not a undefined
return typeof value !== 'undefined' &&
//checking that the value is not a object
typeof value !== 'object' &&
//checking that the value is not a function
typeof value !== 'function' &&
//checking that we dosent have empty string
value.length > 0 &&
//checking that the property is not int index ( happens on some browser
value != parseInt(value)
};
//we iterating the computed style object and compy the style props and the values
for(property in computed_style_object)
{
//checking if the property and value we get are valid sinse browser have different implementations
if(stylePropertyValid(property,computed_style_object[property]))
{
//applying the style property to the target element
to.style[property] = computed_style_object[property];
}
}
};
// Copy over all relevant styles to preserve styling, work the way down the children tree.
var buildChild = function(masterList, childList) {
for(c=0; c<masterList.length; c++) {
var master = masterList[c];
var child = childList[c];
copyComputedStyle(master, child);
if(master.children && master.children.length > 0) {
buildChild(master.children, child.children);
}
}
}
/** select elements to print with query selector **/
var printSelection = function(querySelector) {
// Create an iframe to make sure everything is clean and ordered.
var iframe = document.createElement('iframe');
// Give it enough dimension so you can visually check when modifying.
iframe.width = document.width;
iframe.height = document.height;
// Add it to the current document to be sure it has the internal objects set up.
document.body.append(iframe);
var nodes = document.querySelectorAll(querySelector);
if(!nodes || nodes.length == 0) {
console.error('Printing Faillure: Nothing to print. Please check your querySelector');
return;
}
for(i=0; i < nodes.length; i++) {
// Get the node you wish to print.
var origNode = nodes[i];
// Clone it and all it's children
var node = origNode.cloneNode(true);
// Copy the base style.
copyComputedStyle(origNode, node);
if(origNode.children && origNode.children.length > 0) {
buildChild(origNode.children, node.children);
}
// Add the styled clone to the iframe. using contentWindow.document since it seems the be the most widely supported version.
iframe.contentWindow.document.body.append(node);
}
// Print the window
iframe.contentWindow.print();
// Give the browser a second to gather the data then remove the iframe.
window.setTimeout(function() {iframe.parentNode.removeChild(iframe)}, 1000);
}
window.printSelection = printSelection;
}();
printSelection('.default.prettyprint.prettyprinted')
【讨论】：
这是一个非常老的帖子，但这是我使用正确答案所做的更新。我的解决方案也使用 jQuery。
重点是使用正确的打印视图，包括所有样式表以实现正确的格式设置，并且在大多数浏览器中都得到支持。
function PrintElem(elem, title, offset)
{
// Title constructor
title = title || $('title').text();
// Offset for the print
offset = offset || 0;
// Loading start
var dStart = Math.round(new Date().getTime()/1000),
$html = $('html');
i = 0;
// Start building HTML
var HTML = '<html';
if(typeof ($html.attr('lang')) !== 'undefined') {
HTML+=' lang=' + $html.attr('lang');
}
if(typeof ($html.attr('id')) !== 'undefined') {
HTML+=' id=' + $html.attr('id');
}
if(typeof ($html.attr('xmlns')) !== 'undefined') {
HTML+=' xmlns=' + $html.attr('xmlns');
}
// Close HTML and start build HEAD
HTML+='><head>';
// Get all meta tags
$('head > meta').each(function(){
var $this = $(this),
$meta = '<meta';
if(typeof ($this.attr('charset')) !== 'undefined') {
$meta+=' charset=' + $this.attr('charset');
}
if(typeof ($this.attr('name')) !== 'undefined') {
$meta+=' name=' + $this.attr('name');
}
if(typeof ($this.attr('http-equiv')) !== 'undefined') {
$meta+=' http-equiv=' + $this.attr('http-equiv');
}
if(typeof ($this.attr('content')) !== 'undefined') {
$meta+=' content=' + $this.attr('content');
}
$meta+=' />';
HTML+= $meta;
i++;
}).promise().done(function(){
// Insert title
HTML+= '<title>' + title + '</title>';
// Let's pickup all CSS files for the formatting
$('head > link[rel="stylesheet"]').each(function(){
HTML+= '<link rel="stylesheet" href="' + $(this).attr('href') + '" />';
i++;
}).promise().done(function(){
// Print setup
HTML+= '<style>body{display:none;}@media print{body{display:block;}}</style>';
// Finish HTML
HTML+= '</head><body>';
HTML+= '<h1 class="text-center mb-3">' + title + '</h1>';
HTML+= elem.html();
HTML+= '</body></html>';
// Open new window
var printWindow = window.open('', 'PRINT', 'height=' + $(window).height() + ',width=' + $(window).width());
// Append new window HTML
printWindow.document.write(HTML);
printWindow.document.close(); // necessary for IE >= 10
printWindow.focus(); // necessary for IE >= 10*/
console.log(printWindow.document);
/* Make sure that page is loaded correctly */
$(printWindow).on('load', function(){
setTimeout(function(){
// Open print
printWindow.print();
// Close on print
setTimeout(function(){
printWindow.close();
return true;
}, 3);
}, (Math.round(new Date().getTime()/1000) - dStart)+i+offset);
});
});
});
}
稍后你需要这样的东西：
$(document).on('click', '.some-print', function() {
PrintElem($(this), 'My Print Title');
return false;
});
试试看。
【讨论】：
只需使用PrintJS
let printjs = document.createElement("script");
printjs.src = "https://printjs-4de6.kxcdn.com/print.min.js";
document.body.appendChild(printjs);
printjs.onload = function (){
printJS('id_of_div_you_want_to_print', 'html');
}
【讨论】：
这应该可行：
function printDiv(divName) {
var printContents = document.getElementById(divName).innerHTML;
var originalContents = document.body.innerHTML;
document.body.innerHTML = printContents;
window.print();
document.body.innerHTML = originalContents;
}
【讨论】：
虽然有点晚了，但我发现这真的很好！！！
function printDiv(divID) {
//Get the HTML of div
var divElements = document.getElementById(divID).innerHTML;
//Get the HTML of whole page
var oldPage = document.body.innerHTML;
//Reset the page's HTML with div's HTML only
document.body.innerHTML =
"<html><head><title></title></head><body>" +
divElements + "</body>";
//Print Page
window.print();
//Restore orignal HTML
document.body.innerHTML = oldPage;
}
【讨论】：
HTML > 头部
<script type="text/javascript">
function printDiv() {
var divToPrint = document.getElementById('printArea');
//Firefox was just opening a new window with same content as opener and not performing the printing dialog, so needed to make it open a new instance of the window opener
newWin= window.open(self.location.href);
//We want to format the document appropriately
newWin.document.write("\<!DOCTYPE html\>\<html lang='es'\>\<head\>\<meta charset='utf-8'\/\>\<meta name='viewport' content='width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no'><meta http-equiv='X-UA-Compatible' content='IE=edge,chrome=1'\>\<meta name='HandheldFriendly' content='true'\/\>");
//HTML ELEMENTS THAT WE WANT TO HIDE FROM THE PRINTING AREA
newWin.document.write("<style type='text/css'>@media print{.dataTables_info,.dataTables_filter{height:0!important;width:0!important;margin:0!important;padding:0!important;min-height:0!important;line-height:0!important;overflow:visible!important;visibility:hidden}");
//General Styling for Printing
newWin.document.write("body {z-index:100!important;visibility:visible!important;position:relative!important;display:block!important;background-color:lightgray!important;height:297mm!important;width:211mm!important;position:relative!important;padding:0;top:0!important;left:0!important;margin:0!important;orphans:0!important;widows:0!important;overflow:visible!important;page-break-after:always}");
//Some forced styling in css rules includying page break for a div
newWin.document.write("body h1{font-size:1em; font-family:Verdana;} a.marked{color:black; text-decoration:none} .pagebreak { page-break-before: always; } ");
newWin.document.write("@page{size:A4; margin:2em; orphans:0!important;widows:0!important}}</style>\<\/head>\<body>");
newWin.document.write(divToPrint.innerHTML);
newWin.document.write("</body></html>");
newWin.focus();
newWin.print();
}
</script>
HTML > 正文
<div id="printArea">
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
<!-- Page break -->
<div class="pagebreak"> </div>
It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors now use Lorem Ipsum as their default model text, and a search for 'lorem ipsum' will uncover many web sites still in their infancy. Various versions have evolved over the years, sometimes by accident, sometimes on purpose (injected humour and the like).
</div>
【讨论】：