blob

问题 I have a simple cuestion. I have the following service in angular 4 app. getProviderPhoto(id:string){ return this.http.get(this.apiUrl+"/"+id+"/images", {responseType: "blob"}); } I need to convert this Blob response to Image file to use the following method: createImageFromBlob(image: Blob) { let reader = new FileReader(); this.photo = new File([image],"foto.png",{ type: 'image/png' }); reader.readAsDataURL(this.photo); reader.onload = (event: any) => { this.image=event.target.result;

问题 I am using Asp.net with C# and back-end MySql to keep Images as byte[] array with using BLOB datatype TABLE : ImageLog ImgID int (auto increment) ImageLogo blob I am using following function to convert image to array... private byte[] ConvertImageToByteArray(FileUpload fuImgToByte) { byte[] ImageByteArray; try { MemoryStream ms = new MemoryStream(fuImgToByte.FileBytes); ImageByteArray = ms.ToArray(); return ImageByteArray; } catch (Exception ex) { return null; } } here is calling method for

问题 i am working with digital persona u are u 4500 and oracle database, i got the problem to store fingerprint template to database, here part of my code string sqlInsert = "insert into mytable(ID,FINGERPRINT)"; sqlInsert += "values (:i_ID,:i_FINGERPRINT)"; OracleParameter iID = new OracleParameter(); iID.OracleDbType = OracleDbType.Varchar2; iID.Value = textBox1.Text; iID.ParameterName = "i_ID"; OracleParameter iFINGERPRINT = new OracleParameter(); iFINGERPRINT.OracleDbType = OracleDbType.Blob;

问题 I am having some text like below to be saved in a downloadable doc format using javascript blob. <p style='font-size:18px'>Hello</p> Once the download happens I want the doc to show just show formatted ' Hello ' without any html tags. In ubuntu this works very well. But when I open the same doc in windows or google docs , I still see html tags. Is there a way where I can do this formatting at Blob level itself. Below is the way Iam creating blob object. var file = new Blob([val], {type:

问题 d3.select("#save").on("click", function(){ var html = d3.select("svg") .attr("version", 1.1) .attr("xmlns", "http://www.w3.org/2000/svg") .node().parentNode.innerHTML; //console.log(html); var imgsrc = 'data:image/svg+xml;base64,'+ btoa(html); var img = '<img src="'+imgsrc+'">'; d3.select("#svgdataurl").html(img); }); this is the code but its not showing the copied image at all. what is the problem? this is the code from http://techslides.com/save-svg-as-an-image/ . my line chart has mouse

问题 Using Sqoop I’ve successfully imported a few rows from a table that has a BLOB column.Now the part-m-00000 file contains all the records along with BLOB field as CSV. Questions: 1) As per doc, knowledge about the Sqoop-specific format can help to read those blob records. So , What does the Sqoop-specific format means ? 2) Basically the blob file is .gz file of a text file containing some float data in it. These .gz file is stored in Oracle DB as blob and imported into HDFS using Sqoop. So how

问题 Is there any way to extract a blob file from a (an Oracle) DB and pass it to the Controller in spring MVC without using hibernate ? The following is my table structure: desc PROJECT_STORAGE; PROJECT_ID NUMBER(38) FILE_NAME VARCHAR2(20) DOCUMENTS BLOB ALIAS VARCHAR2(50) FILE_TYPE VARCHAR2(50) My code as of now is as follows : @RequestMapping(value = "/DownloadFile.htm", method = RequestMethod.GET) @ResponseBody public void downloadFile(ModelMap model,HttpServletRequest request

问题 so i'm having a small problem in displaying a BLOB from my database , I tried everything but with no results , just some ugly characters , I know it's something silly but it drives me crazy , here is the code: <?php conect.. //collect if(isset($_POST['search'])) { $searchq = $_POST['search']; $query = mysql_query("SELECT * FROM thinking_search.search WHERE title LIKE '%$searchq%' OR keywords LIKE '%$searchq%'"); $count = mysql_num_rows($query); if($count == 0) { $output = 'There are no

问题 I have setup some static content in a CDN but when accessing the .html file, the file gets downloaded and not rendered in the browser. I am using a blob container http://cdn-dezelo-consulting01.azureedge.net/index.html I don't know what I missed ? 回答1: I traced the request/response through Fiddler and noticed the Content-Type property on your blob ( index.html ) is set as application/octet-stream (which is default content type for a blob in Azure). This is the reason it is being downloaded

问题 When we make a git diff Version1..Version2 -- file , this command will return something like : diff --git a/wp-includes/version.php b/wp-includes/version.php index 5d034bb9d8..617021e8d9 100644 The git here compare between two version of a file to give you the difference between them. I need to know the commit responsible for adding the file in question from the number of index 5d034bb9d8 , and the index **617021e8d9*. 回答1: TL;DR This (untested) script may do what you want. Read the rest for