filereader

display images fetched from s3

由 核能气质少年 提交于 2019-11-27 05:24:58
问题 I want to fetch images from s3 and display them on my HTML page. Angular HTML file: <section data-ng-controller="myCtrl"> <img ng-src="{{src}}" width="200px" height="200px"> </section> Angular Controller file: angular.module('users').controller('myCtrl', ['$scope',function($scope) { var s3 = new AWS.S3(); s3.getObject({Bucket: 'mybucket', Key: 'myimage.jpg'},function(err,file){ //code?? to display this image file in the img tag //$scope.src=file????....obviously it wont work }); }]); I found

Modify the content of a file using Java

由 梦想与她 提交于 2019-11-27 04:53:51
I want to delete some content of file using java program as below. Is this the write method to replace in the same file or it should be copied to the another file. But its deleting the all content of the file. class FileReplace { ArrayList<String> lines = new ArrayList<String>(); String line = null; public void doIt() { try { File f1 = new File("d:/new folder/t1.htm"); FileReader fr = new FileReader(f1); BufferedReader br = new BufferedReader(fr); while (line = br.readLine() != null) { if (line.contains("java")) line = line.replace("java", " "); lines.add(line); } FileWriter fw = new

Reading line-by-line file in JavaScript on client side

由 偶尔善良 提交于 2019-11-27 04:14:29
问题 Could you please help me with following issue. Goal Read file on client side (in browser via JS and HTML5 classes) line by line, without loading whole file to memory. Scenario I'm working on web page which should parse files on client side. Currently, I'm reading file as it described in this article. HTML: <input type="file" id="files" name="files[]" /> JavaScript: $("#files").on('change', function(evt){ // creating FileReader var reader = new FileReader(); // assigning handler reader

Filereader - upload same file again not working

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-11-27 03:46:03
问题 I have sth like drawing app. User can save projects and then load them. When I load first time one file (for e.g. project1.leds) make some changes in the app but no saving it and then again load same file (project1.leds) nothing happen. I cant load same file more than once. If I load another file, it's working. Code: $("#menu-open-file").change(function(e){ var data=[]; var file = null; file = e.target.files[0]; console.log(file) var reader = new FileReader(); reader.onload = function(e){

批量替换文件为UTF-8

由 喜你入骨 提交于 2019-11-27 02:47:31
下载地址: https://pan.baidu.com/s/1L5_UCZ0y0uhRVEqkYn7BhA 工程下载地址： https://pan.baidu.com/s/1y3tC0UQyvA3elYyewvP8Iw 主要代码 // Convert.cpp : 定义控制台应用程序的入口点。 // #include "stdafx.h" #include "Convert.h" #include <afxwin.h> #include <string> #include <iostream> #ifdef _DEBUG #define new DEBUG_NEW #endif #ifdef _DEBUG #define new DEBUG_NEW #endif #define _CRT_SECURE_CPP_OVERLOAD_SECURE_NAMES 1 // 唯一的应用程序对象 CWinApp theApp; using namespace std; void recursiveFile(CString strFileType); void convertGBToUTF8(CString strWritePath, const char* gb2312); int _tmain(int argc, TCHAR* argv[], TCHAR* envp[]) { int

How to read from files with Files.lines(…).forEach(…)?

由 这一生的挚爱 提交于 2019-11-27 02:44:44
问题 I'm currently trying to read lines from a text only file that I have. I found on another stackoverflow(Reading a plain text file in Java) that you can use Files.lines(..).forEach(..) However I can't actually figure out how to use the for each function to read line by line text, Anyone know where to look for that or how to do so? 回答1: Sample content of test.txt Hello Stack Over Flow com Code to read from this text file using lines() and forEach() methods. import java.io.IOException; import

How to read a properties file in javascript from project directory?

由 大城市里の小女人 提交于 2019-11-27 01:57:49
问题 I'm building a Chrome Packaged App. I want to put the script configuration if a config file in a resource directory and on startup want to read that by Javascript. For example Project WebContent index.html manifest.json main.js resource config.properties Here I want main.js to load config.properties file in the beginning and get key-value pairs. Have anyone done something like this? 回答1: There is a super simple way to do this, along the lines of sowbug's answer, but which doesn't need any XHR

Fastest way to read a file line by line with 2 sets of Strings on each line?

由 拟墨画扇 提交于 2019-11-27 01:37:31
问题 What is the fastest way I can read line by line with each line containing two Strings. An example input file would be: Fastest, Way To, Read One, File Line, By Line .... can be a large file There are always two sets of strings on each line that I need even if there are spaces between the String e.g. "By Line" Currently I am using FileReader a = new FileReader(file); BufferedReader br = new BufferedReader(a); String line; line = br.readLine(); long b = System.currentTimeMillis(); while(line !=

Read a file synchronously in Javascript

由 送分小仙女□ 提交于 2019-11-27 00:48:23
问题 I would like to read a file and convert it into a base64 encoded string using the FileReader object. Here's the code I use : var reader = new FileReader(); reader.onloadend = function(evt) { // file is loaded result_base64 = evt.target.result; }; reader.readAsDataURL(file); But in this case, I get the result of the conversion in the event handler (onLoadEnd event). I would like a synchronous method. Is there a way the "readAsDataURL" method can return directly the value of the 'result_base64'

HTML5 FileReader how to return result?

由 限于喜欢 提交于 2019-11-27 00:32:58
I use JS FileReader. I want to get result after file reading operation and work with this data. FileReader is asynchronous and I don't know when result is ready. How to get it done right? $(document).ready(function(){ $('#file_input').on('change', function(e){ var res = readFile(this.files[0]); //my some manipulate with res $('#output_field').text(res); }); }); function readFile(file){ var reader = new FileReader(), result = 'empty'; reader.onload = function(e) { result = e.target.result; }; reader.readAsText(file); //waiting until result is empty? return result; } http://jsfiddle.net/ub22m/4/
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