打印DIV内容的最佳方法是什么?
当前回答
与最佳答案相同，以防你需要像我一样打印图像:
如果你想打印图像:
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;
}
其他回答
我使用Bill Paetzke的答案打印一个div包含图像，但它不能与谷歌chrome
我只需要添加这一行myWindow.onload=function(){使它工作，这里是完整的代码
<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>
如果有人只是需要打印一个带有id的div，他不需要加载jquery
这里是做这件事的纯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>
我希望这能帮助到一些人
如果你想拥有原始文档的所有样式(包括内联样式)，你可以使用这种方法。
复制完整的文档 将body替换为要打印的元素。
实现:
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)
}
}
下面的代码复制了查询选择器目标的所有相关节点，复制了它们在屏幕上看到的样式，因为许多用于css选择器目标的父元素将会丢失。如果有很多带有很多样式的子节点，这将导致一些延迟。
理想情况下，你应该有一个打印样式表，但这是为用例，没有打印样式表插入，你希望打印在屏幕上看到。
如果您在此页的浏览器控制台中复制以下项目，它将打印此页上的所有代码片段。
+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')
这是一个非常老的帖子，但这里是我的更新，我使用正确的答案。我的解决方案也使用jQuery。
这一点是使用正确的打印视图，包括所有样式表的正确格式，也要在大多数浏览器支持。
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);
});
});
});
}
之后你只需要这样的东西:
$(document).on('click', '.some-print', function() {
PrintElem($(this), 'My Print Title');
return false;
});
试一试。
虽然@BC的答案最好打印一页。
但要打印多页A4大小的同时按ctrl+P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;
}}
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