JSP 上传图片之前先在页面生成预览

2019独角兽企业重金招聘Python工程师标准>>>

JSP 页面代码：

        <form action="#" name="uploadForm" method="post" enctype="multipart/form-data">  

        <input type="file" name="upload" id="upload" onchange="loadImageFile(event)">

                <img id="image" src="" >

                <input type="submit" value="上传">

        </form>  

JS 代码：

        function loadImageFile(event)

        {

                var image = document.getElementById('image');

                image.src = URL.createObjectURL(event.target.files[0]); 

        };

转载于:https://my.oschina.net/u/2452573/blog/553030