标签：mit grep htm alt guid abs doctype gui down
记录是为了更好的成长！
页面打印功能很常见，总结一下：
页面引入jquery，也可以不引入，使用jquery操作DOM对象是很方便的
这是一个简单的演示：
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title></title> <script src="js/jquery-3.3.1.min.js"></script> </head> <body> <div id="dayin"><!--startprint--> <table border="1" cellspacing="0" width="100%"> <caption>员工考核管理</caption> <thead> <tr> <th>编号</th> <th>姓名</th> <th>年龄</th> <th>地址</th> <th>用户名</th> <th>邮箱</th> <th>手机号</th> <th>电话号码</th> </tr> </thead> <tbody> <tr> <td>1</td> <td>张三</td> <td>22</td> <td>上海址</td> <td>asdf</td> <td>123123@11.com</td> <td>123123123123123</td> <td>11111111111</td> </tr> <tr> <td>1</td> <td>张三</td> <td>22</td> <td>上海址</td> <td>asdf</td> <td>123123@11.com</td> <td>123123123123123</td> <td>11111111111</td> </tr> </tbody> </table> <!--endprint--> </div> <iframe id="iframe1" style="display: none"></iframe> <button>打印</button> </body> <script type="text/javascript"> $("button").click(function(){ bdhtml=$("#dayin").html(); //alert(bdhtml); sprnstr="<!--startprint-->"; //开始打印标识字符串有17个字符 eprnstr="<!--endprint-->"; //结束打印标识字符串 prnhtml=bdhtml.substr(bdhtml.indexOf(sprnstr)+17); //从开始打印标识之后的内容 prnhtml=prnhtml.substring(0,prnhtml.indexOf(eprnstr));//截取开始标识和结束标识之间的内容 var iframe = null; iframe = document.getElementById("iframe1") var iwindow = null; var iwindow = iframe.contentWindow;//获取iframe的window对象 iwindow.document.close(); iwindow.document.write(prnhtml); iwindow.print(); //调用浏览器的打印功能打印指定区域 }); </script> </html>
这是打印表格数据的方法，很简单吧！主要是 "<!--startprint-->" 和 "<!--endprint-->"比较重要，直接影响打印的内容，所以位置请放正确！
网上有一种jqprint插件，其实也是js打印，打印的是整个页面内容，如果需要打印表格数据，可以把需要打印的表格做成单独的页面来进行打印。
引入jquery，jquery不必多说，引入jquery.jqprint-0.3.js；
jquery.jqprint-0.3.js源码如下，不多，直接复制到页面中就行；
// ----------------------------------------------------------------------- // Eros Fratini - eros@recoding.it // jqprint 0.3 // // - 19/06/2009 - some new implementations, added Opera support // - 11/05/2009 - first sketch // // Printing plug-in for jQuery, evolution of jPrintArea: http://plugins.jquery.com/project/jPrintArea // requires jQuery 1.3.x // // Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php //------------------------------------------------------------------------ (function($) { var opt; $.fn.jqprint = function (options) { opt = $.extend({}, $.fn.jqprint.defaults, options); var $element = (this instanceof jQuery) ? this : $(this); if (opt.operaSupport && $.browser.opera) { var tab = window.open("","jqPrint-preview"); tab.document.open(); var doc = tab.document; } else { var $iframe = $("<iframe />"); if (!opt.debug) { $iframe.css({ position: "absolute", width: "0px", height: "0px", left: "-600px", top: "-600px" }); } $iframe.appendTo("body"); var doc = $iframe[0].contentWindow.document; } if (opt.importCSS) { if ($("link[media=print]").length > 0) { $("link[media=print]").each( function() { doc.write("<link type=‘text/css‘ rel=‘stylesheet‘ href=‘" + $(this).attr("href") + "‘ media=‘print‘ />"); }); } else { $("link").each( function() { doc.write("<link type=‘text/css‘ rel=‘stylesheet‘ href=‘" + $(this).attr("href") + "‘ />"); }); } } if (opt.printContainer) { doc.write($element.outer()); } else { $element.each( function() { doc.write($(this).html()); }); } doc.close(); (opt.operaSupport && $.browser.opera ? tab : $iframe[0].contentWindow).focus(); setTimeout( function() { (opt.operaSupport && $.browser.opera ? tab : $iframe[0].contentWindow).print(); if (tab) { tab.close(); } }, 1000); } $.fn.jqprint.defaults = { debug: false, importCSS: true, printContainer: true, operaSupport: true }; // Thanks to 9__, found at http://users.livejournal.com/9__/380664.html jQuery.fn.outer = function() { return $($(‘<div></div>‘).html(this.clone())).html(); } })(jQuery);
完整html页面：
<!doctype html> <html> <head> <meta charset="utf-8"> <title>jQuery打印插件jqprint</title> <script language="javascript" src="js/jquery-3.3.1.min.js"></script> <script src="js/jquery-migrate-1.2.1.min.js"></script> <script language="javascript" src="js/jquery.jqprint-0.3.js"></script> <script language="javascript"> function a(){ $("#ddd").jqprint(); } </script> </head> <body> <div id="ddd"> <table width="100%" border="1" cellspacing="0"> <tr> <td>test</td> <td>test</td> <td>test</td> <td>test</td> <td>test</td> </tr> <tr> <td>test</td> <td>test</td> <td>test</td> <td>test</td> <td>test</td> </tr> </table> </div> <input type="button" onclick=" a()" value="打印"/> <div style="text-align:center;margin:50px 0; font:normal 14px/24px ‘MicroSoft YaHei‘;"> </div> </body> </html>
在浏览器中打开，可能会出现这样的错误：
解决方法：加入迁移辅助插件jquery-migrate-1.0.0.js可解决版本问题：http://www.jq22.com/jquery/jquery-migrate-1.2.1.min.js
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至此，问题应该是解决了，页面也可以正常打印。
据说很强大，不过没有用过，网上可以找到一些教程可以学习。
以上内容代表个人观点，仅供参考，不喜勿喷。。。
标签：mit grep htm alt guid abs doctype gui down
原文地址：https://www.cnblogs.com/newbest/p/9974489.html
