<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<script src="//cdn.bootcss.com/jquery/2.2.0/jquery.min.js"></script>
<script src="image-upload/js/ajaxFileUpload.js"></script>
<title>fileUpload</title>
</head>
<body>
<input id="file" type="file" name="file">
<script type="text/javascript">
$(function () {
$("#file").change(function () {
new AjaxSubmit('file', 'fileupload.do',{
success : function(data){
alert(data.code);
}
}).send();
});
});
</script>
</body>
</html>
插件下载链接:https://github.com/acrazing/ajaxFileUpload