blob

I would like to display a video from a Javascript Blob/File object in the HTML5 video tag. This code only works for small videos : var reader = new FileReader(); reader.onload = function(e) { document.getElementById("video").src=reader.result; } reader.readAsDataURL(vid); I cannot use this for big videos (> 10MB). Is there a solution to display a big video from a blob object in HTML 5? I've found. It was so simple that I didnt even see it... function display(vid){ var video = document.getElementById("video"); video.src = window.URL.createObjectURL(vid); } In some case blobObject.data should be

this.down = function (data, scope) { console.log(data); console.log(data.headers); var status = data.headers('status_'); if (status == '1' || status === 1) { var blob = data.data; if (blob.size > 0) { var a = document.createElement('a'); document.body.appendChild(a); a.download = un_code.utf8Decode(data.headers('filename'));/*=后面的是被下载文件的文件名，可以自定义，也可以像此处一样由后台返回方法，前端执行后获取文件名。un_code.utf8Decode是前端方法，不是必须。*/ $(a).addClass('collect-data-down-a'); a.href = URL.createObjectURL(blob); /*URL.createObjectURL(blob)可以获取当前文件的一个内存URL*/ a.click(); $(a).remove(); } } else { scope.g_tip('下载失败！'); } }; 来源：

This question already has an answer here: Why do I get java.lang.AbstractMethodError when trying to load a blob in the db? 14 answers I am trying to save an uploaded file in MySQL database as follows: String firstName = request.getParameter("firstName"); String lastName = request.getParameter("lastName"); InputStream inputStream = null; // input stream of the upload file // obtains the upload file part in this multipart request Part filePart = request.getPart("photo"); if (filePart != null) { // prints out some information for debugging System.out.println(filePart.getName()); System.out

This Question is related to and inspired by How to updoad in old browsers (ex Safari 5.1.4) Given an <input type="file"> element having a files property containing File objects which inherit from Blob , is it possible to create a ArrayBuffer and convert the ArrayBuffer to a data URI from a Blob or File object without using FileReader ? Approaches have tried so far have been create a mock WebSocket with .binaryType set to "arraybuffer" , create a MessageEvent with event.data set to File object; result is File object at onmessage handler set prototype of File to ArrayBuffer , Uint8Array ; result

How do I update a BLOB field only using TSQL (for example from SSMS and not using any code such as ADO.Net or Linq)? There are two ways to SELECT a BLOB with TSQL: SELECT * FROM OPENROWSET (BULK 'C:\Test\Test1.pdf', SINGLE_BLOB) a As well as: SELECT BulkColumn FROM OPENROWSET (BULK 'C:\Test\Test1.pdf', SINGLE_BLOB) a Note the correlation name after the FROM clause, which is mandatory. The second version can be used for a UPDATE as in the following example: UPDATE MyTable SET blobField = (SELECT BulkColumn FROM OPENROWSET (BULK 'C:\Test\Test1.pdf', SINGLE_BLOB) a) WHERE (CriteriaField =