<!doctype html> <html lang="en"> <head> <Meta charset="UTF-8"> <Meta name="viewport" content="width=device-width,user-scalable=no,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0"> <Meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>ajax Upload demo</title> </head> <body> <form id="uploadForm" enctype="multipart/form-data"> <input id="file" type="file" name="file"/> <button id="upload" type="button">upload</button> </form> <img id="pre" src="#" width="800" height="600"/> <button id="show" >show</button> </body> <script src="http://cdn.bootcss.com/jquery/3.1.0/jquery.js"></script> <script> $('#upload').click(upload); $('#file').change(function(){ var reader = new FileReader(); reader.readAsDataURL($('#file')[0].files[0]); reader.onload = function (e) { $('#pre').attr('src',this.result) } }) function upload() { var form = new FormData(); form.append("file",$('#file')[0].files[0]); form.append("name","jdlsajdlkas"); form.append("order","1"); var settings = { "async": true,"crossDomain": true,"url": "/attachments/","method": "POST","processData": false,"contentType": false,"mimeType": "multipart/form-data","data": form } $.ajax(settings).done(function (response) { console.log(response); }); } </script> </html>