jquery file upload 怎么从服务器端获取实时进度信息？

[ssy1786705959]

jquery file upload 进度条默认好像是假进度，我想从服务器端获取进度信息，根据从服务器端获取的进度信息显示进度条？

[cheery_an]

在onSubmit里面，每隔一段时间，从服务器取进度信息

[ssy1786705959]

能详细点吗... All callbacks are of type function and can also be bound as event listeners, using the callback name plus "fileupload" as prefix: $('#fileupload') .bind('fileuploadadd', function (e, data) {/* ... */}) .bind('fileuploadsubmit', function (e, data) {/* ... */}) .bind('fileuploadsend', function (e, data) {/* ... */}) .bind('fileuploaddone', function (e, data) {/* ... */}) .bind('fileuploadfail', function (e, data) {/* ... */}) .bind('fileuploadalways', function (e, data) {/* ... */}) .bind('fileuploadprogress', function (e, data) {/* ... */}) .bind('fileuploadprogressall', function (e, data) {/* ... */}) .bind('fileuploadstart', function (e) {/* ... */}) .bind('fileuploadstop', function (e) {/* ... */}) .bind('fileuploadchange', function (e, data) {/* ... */}) .bind('fileuploadpaste', function (e, data) {/* ... */}) .bind('fileuploaddrop', function (e, data) {/* ... */}) .bind('fileuploaddragover', function (e) {/* ... */}) .bind('fileuploadchunksend', function (e, data) {/* ... */}) .bind('fileuploadchunkdone', function (e, data) {/* ... */}) .bind('fileuploadchunkfail', function (e, data) {/* ... */}) .bind('fileuploadchunkalways', function (e, data) {/* ... */}); //--------------------------------------------------------------------------------------------- submit Callback for the submit event of each file upload. If this callback returns false, the file upload request is not started. Example: function (e, data) { var input = $('#input'); data.formData = {example: input.val()}; if (!data.formData.example) { data.context.find('button').prop('disabled', false); input.focus(); return false; } } 获取数据后怎么设置进度条？

[lixin1412]

后台可以返回上传大小吗？ 不考虑兼容性的话就直接用xhr啊，自带获取已上传大小，简单方便 不然可以用socket，个人认为很蠢很麻烦