base64

问题 I'm tring to concatenate two strings encoded to base64 but it doesn't really work, just prints the first string in concatanation: q = base64.b64encode("StringA") print q # prints an encoded string q = q+base64.b64encode("StringB") print q # prints an encoded string print base64.b64decode(q) # just prints "StringA" 回答1: You are decoding a string that is concatenation of two base64 strings. This is not correct. You should do something like this - base64.b64decode(base64.b64encode("StringA" +

问题 I'm tring to concatenate two strings encoded to base64 but it doesn't really work, just prints the first string in concatanation: q = base64.b64encode("StringA") print q # prints an encoded string q = q+base64.b64encode("StringB") print q # prints an encoded string print base64.b64decode(q) # just prints "StringA" 回答1: You are decoding a string that is concatenation of two base64 strings. This is not correct. You should do something like this - base64.b64decode(base64.b64encode("StringA" +

问题 I am working on a script where after some operation of PHP functions, I generate a base64 image data in $base64Image variable. Now I want to show that base64 image data as a full image on the web browser same as an image.jpeg . For this purpose, I wrote some codes as shown below... screenshot.php <?php /*------------------------ // Basic PHP Operations // ------------------------*/ // Get URL Parameters $key1 = $_GET["key1"]; $key2 = $_GET["key2"]; // Some PHP Operations......................

问题 I'm trying to send base64 encoded images to a server using HttpUrlConnection. The problem I'm having is that most images gets sent successfully, however some generate a FileNotFound exception. My code for encoding the image can be found below. public static String encodeImage(Bitmap thumbnail) { ByteArrayOutputStream baos = new ByteArrayOutputStream(); thumbnail.compress(Bitmap.CompressFormat.JPEG, 100, baos); byte[] b = baos.toByteArray(); String imageEncoded = Base64.encodeToString(b,Base64

问题 I'm trying to send base64 encoded images to a server using HttpUrlConnection. The problem I'm having is that most images gets sent successfully, however some generate a FileNotFound exception. My code for encoding the image can be found below. public static String encodeImage(Bitmap thumbnail) { ByteArrayOutputStream baos = new ByteArrayOutputStream(); thumbnail.compress(Bitmap.CompressFormat.JPEG, 100, baos); byte[] b = baos.toByteArray(); String imageEncoded = Base64.encodeToString(b,Base64

问题 I'm trying to send base64 encoded images to a server using HttpUrlConnection. The problem I'm having is that most images gets sent successfully, however some generate a FileNotFound exception. My code for encoding the image can be found below. public static String encodeImage(Bitmap thumbnail) { ByteArrayOutputStream baos = new ByteArrayOutputStream(); thumbnail.compress(Bitmap.CompressFormat.JPEG, 100, baos); byte[] b = baos.toByteArray(); String imageEncoded = Base64.encodeToString(b,Base64

问题 I want convert video in base64 String so i convert migBase64 Method through my video in android it convert video to string successfully but when i decode String to Video then it not proper converting in video. so please help me if anyone knows. i try code like below: String encodedString; //Decode Video To String File tempFile = new File(Environment.getExternalStorageDirectory()+ "/my/part/my_0.mp4"); byte fileContent[] = new byte[3000]; try { FileInputStream fin = new FileInputStream

问题 I want convert video in base64 String so i convert migBase64 Method through my video in android it convert video to string successfully but when i decode String to Video then it not proper converting in video. so please help me if anyone knows. i try code like below: String encodedString; //Decode Video To String File tempFile = new File(Environment.getExternalStorageDirectory()+ "/my/part/my_0.mp4"); byte fileContent[] = new byte[3000]; try { FileInputStream fin = new FileInputStream

问题 I'm trying to remove a dependence on System.Web.dll from a Web API project, but have stumbled on a call to HttpServerUtility.UrlTokenEncode(byte[] input) (and its corresponding decode method) that I don't know what to replace with to ensure backwards compatibility. The documentation says that this method Encodes a byte array into its equivalent string representation using base 64 digits, which is usable for transmission on the URL. I tried substituting with Convert.ToBase64String(byte[] input

问题 I am trying to get a pdf from datatable and attach it to an entity in CRM. For that purpose I use this code. Unfortunately created pdf is broken, I am unable to open it. Any ideas? private static string ExportToBase64Pdf(DataTable dt, string entityName) { using (MemoryStream memoryStream = new MemoryStream()) { Document document = new Document(PageSize.A4); PdfWriter writer = PdfWriter.GetInstance(document, memoryStream); document.Open(); Font font5 = FontFactory.GetFont(FontFactory.HELVETICA