<!DOCTYPE html> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ page import="java.util.Date" %> <%@ page import="java.text.SimpleDateFormat" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/ html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <link rel="stylesheet" href="css/page/index.css"> <title>window调用打印接口</title> <style> #pr{width:100px;height:40px;line-height:40px;text-align:center;background:#ccc;} .box{width:600px;background:red;} </style> </head> <body> <div class="box"> <h1>要打印的内容</h1> <p>测试内容</p> </div> <div id="pr">点击打印</div> </body> </html> <script> function $(selector){ return document.querySelector(selector); } //获取整个页面 $("#pr").onclick =function(){ window.print(); } /* 实现打印全部页面（也可以打印局部页面 - 看需求） ---- 我是只打印baby里边的内容 获取我们定义的id */ $("#pr").onclick =function(){ var oldHtml = $("body").innerHTML; var printbox = $(".box").innerHTML; $("body").innerHTML = printbox; window.print(); $("body").innerHTML = oldHtml; location.reload();//刷新当前页面，很重要 } </script>
原文：https://blog.csdn.net/qq_36537546/article/details/8292736