<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>测试</title>
<script src="https://cdn.bootcss.com/jsbarcode/3.8.0/JsBarcode.all.min.js"></script>
</head>
<body>
<h1>条形码生成测试</h1>
<div class="box">
<img id="barcode" />
</div>
<input type="text" id="content" placeholder="请输入条码内容"/>
<input type="button" id="autoIma" value="生成" onclick="CreateIma()"/>
<input type="button" id="btnsavaImg" value="保存图片到本地" onclick="Download()" />
<script>
//生成条码
function CreateIma() {
var content = document.getElementById('content').value;
if (content == undefined || content == "") {
alert("请输入条码内容!");
return;
};
var barcode = document.getElementById('barcode'),
//str = "chenyanbin",
options = {
format: "CODE128",
displayValue: true,
fontSize: 18,
height: 100
};
JsBarcode(barcode, content, options); //原生JS方式
// $('#barcode').JsBarcode(string, options); //jQuery方式
}
//将生成的条形码保存至本地
function Download() {
// 通过选择器获取img元素
var img = document.getElementById('barcode')
// 将图片的src属性作为URL地址
var url = img.src
var a = document.createElement('a')
var event = new MouseEvent('click')
a.download = name || '下载图片名称'
a.href = url
a.dispatchEvent(event) //根据A标签的属性来搞事情
};
</script>
</body>
</html>
