jQuery ajax 文件上传

html

javascript

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)

})