Generating a Simple QR-Code with just HTML

问题

I came across this APIserver to generate the QRCode but I was wondering is it possible to just use HTML to generate the QRcode for example this is what I was thinking

<input id="text" type="text" value="Please Enter Your NRIC or Work Permit" style="Width:20%"/> 
         
<img src="https://api.qrserver.com/v1/create-qr-code/?data=HelloWorld&amp;size=100x100" alt="" title="HELLO" />

In the "title" I believe it is where you will write your text and the QR code would generate, I was wondering how can I create a text box for me to key in the value directly on a website.

回答1:

Were you thinking of something like this? https://jsfiddle.net/v7d6d1ps/

Your HTML can be similar to what you have but with added onblur event. Only HTML cannot do this, so I have added jQuery/JavaScript combination.

<html>
    <head>
        <title>Testing QR code</title>
        <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
        <script type="text/javascript">
            function generateBarCode()
            {
                var nric = $('#text').val();
                var url = 'https://api.qrserver.com/v1/create-qr-code/?data=' + nric + '&amp;size=50x50';
                $('#barcode').attr('src', url);
            }
        </script>
    </head>
    <body>
        <input id="text" type="text" 
            value="NRIC or Work Permit" style="Width:20%"
            onblur='generateBarCode();' /> 

      <img id='barcode' 
            src="https://api.qrserver.com/v1/create-qr-code/?data=HelloWorld&amp;size=100x100" 
            alt="" 
            title="HELLO" 
            width="50" 
            height="50" />
    </body>
</html>

Copy and paste this into an HTML file on your desktop. Type in the text box 12345 and hit tab. Notice that the QR code will update.

来源：https://stackoverflow.com/questions/30115242/generating-a-simple-qr-code-with-just-html

标签

qr-code