打印DIV内容的最佳方法是什么?


当前回答

创建一个单独的打印样式表,隐藏除要打印的内容之外的所有其他元素。当你加载它时,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一个完全不同的样式表。

如果你想强制浏览器的打印对话框出现在页面上,你可以在加载时使用JQuery这样做:

$(function() {window.print();});

或者由你想要的任何其他事件触发,比如用户点击一个按钮。

其他回答

打开一个新窗口 打开新窗口的文档对象,并在其中写入一个简单的文档,其中只包含您已经获得的div和必要的html头文件等-您可能还希望将文档拉入样式表,这取决于您的内容是什么 在新页面中放入一个脚本来调用window.print() 触发脚本

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。

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');
}

HTML >头

  <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 >主体

<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">&nbsp;</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>

下面是一个适用于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);
}