html5文件上传

 var vFD = new FormData(window.document.getElementById('notice-file-form'));
                    var oXHR = new XMLHttpRequest();
                    oXHR.addEventListener('load', function (e) { // upload successfully finished
                        alert(e.target.responseText);
                    }, false);
                    oXHR.addEventListener('error', function (e) {
                        console.log('file upload error:',e);
                    }, false);
                    oXHR.addEventListener('abort', function (e) {
                        console.log('file upload abort:', e);
                    }, false);
                    oXHR.open('POST', controller.sys.program.domain + controller.sys.program.api.fileUpload.getUri('notice') + '?token=' + data.token + '&r=' + data.r);
                    oXHR.send(vFD);

 <form id="notice-file-form" enctype="multipart/form-data">
                        <input type="file" id="uploadfile" name="uploadfile" />
                    </form>