jQuery ajax 文件上传

html

<!-- lang: html -->
<form id="upload" method="post" action="/bucket/${buck.name}/up" enctype="multipart/form-data" >
<input type="hidden" name="prefix" value="${prefix}"/>
<input type="file" name="upfile" id="file_upload" class="filestyle"/>
</form>

javascript

<!-- lang: js -->
var dat = new FormData()

dat.append('prefix', $(':input[name=prefix]').val())
dat.append('file', $(':input[name=upfile]')[0].files[0])
var req = $.ajax({
url: $('#upload').attr('action'),
data: dat,
dataType: 'json',
type: 'POST',
contentType: false,
processData: false
})

req.done(function(msg) {
alert(msg)
})