I am using NodeJS express (MVC) and I am trying to upload an image. I am trying to store the image in a uploads folder but nothing is showing up. When I console.log(req.files), I get the following (req.buffer prints out a long series of double digit numbers and letters). How do I get this to save the image in the folder? [ { fieldname: 'file', originalname: 'thumbnail.jpg', e
我正在使用NodeJS express（MVC），并且正在尝试上载图像。 我正尝试将图像存储在上传文件夹中，但没有任何内容显示。 当我console.log（req.files）时，我得到以下内容（req.buffer打印出一系列长度为两位数的数字和字母）。 我如何获得这个将图像保存在文件夹中？ [{fieldname：'file'，originalname：'thumbnail.jpg'，编码：'7bit'，mimetype：'image / jpeg'，buffer：，size：1347}]
This is driving my crazy. I've tried to search, but all the solutions being offered aren't working. I am trying to create a simple file upload using multer, but can't seem to get it to work since req.file seems to always be undefined. Any ideas? Completely stumped.. nothing is working it's just coming back as undefined! app.js var path = require('path'), routes = require('
这让我疯狂。 我试图搜索，但提供的所有解决方案都不起作用。 我正尝试使用multer创建一个简单的文件上传，但似乎无法使其工作，因为req.file似乎始终未定义。 有任何想法吗？ 完全困难..没有任何工作，它只是回来未定义！ app.js var path = require('path'), routes = require('./routes'), exphbs = require('express-handlebars'), express = require('express'), bodyParser = require('body-parser'), cookieParser
I'm developing an application for android. In my controller I am trying to send an image and a JSON to the server. I capture the image with the camera plugin and then I use $cordovaFileTransfer to send image and a json object to the server. The server support multiform request. What I did it's something like that: // Destination URL var url = "http://example.gajotres.net/upload/u
我正在开发一个android应用程序。 在我的控制器中，我试图将图像和JSON发送到服务器。 我使用相机插件捕获图像，然后使用$cordovaFileTransfer将图像和json对象发送到服务器。 该服务器支持多种形式的请求。 我做的是这样的： // Destination URL var url = "http://example.gajotres.net/upload/upload.php"; //File for Upload var targetPath = "myImage.jpg"; // File name only var filename = targetPath.split(
Fairly new to Javascript and still running into this problem after trying a lot of things: I'm using http://ngcordova.com/docs/plugins/camera/ to capture an image on the phone and can retrieve as either a base64-encoded image or as a path to the image location (file://storage/emulated/...jpg). Next I'm using this to upload files to google drive: https://github.com/googledrive/cors-upl
相当新的JavaScript，并尝试了很多事情后仍然遇到这个问题： 我使用http://ngcordova.com/docs/plugins/camera/在手机上捕获图像，并可以检索为base64编码的图像或作为图像位置的路径（file：// storage /仿真/ ... JPG）。 接下来，我使用它来上传文件到谷歌驱动器：https：//github.com/googledrive/cors-upload-sample 我已经成功上传了一个具有给定示例的文本文件： * @example * var content = new Blob(["Hello wor
I have a jpeg as a base64 encoded string. var image = "/9j/4AAQSkZJRgABAQEAS..." I would like to upload this jpeg to the server using FormData. var data = new FormData(); What is the proper way to append the image to data? Your image data is nothing more than a string, so append it to your FormData object like this: data.append("image_data", image); Then on your server side you can store
我有一个jpeg作为base64编码的字符串。 var image = "/9j/4AAQSkZJRgABAQEAS..." 我想用FormData将这个jpeg上传到服务器。 var data = new FormData(); 将图像追加到数据的正确方法是什么？ 你的图像数据只不过是一个字符串，所以把它附加到你的FormData对象中就像这样： data.append("image_data", image); 然后在服务器端，您可以将其直接存储在数据库中，或将其转换为图像并将其存储在文件系统中。 你可能会觉得这篇
I've been trying to re-implement an HTML5 image uploader like the one on the Mozilla Hacks site, but that works with WebKit browsers. Part of the task is to extract an image file from the canvas object and append it to a FormData object for upload. The issue is that while canvas has the toDataURL function to return a representation of the image file, the FormData object only accepts File o
我一直在尝试重新实现像Mozilla Hacks站点上的HTML5图像上传器，但是它可以与WebKit浏览器一起使用。 部分任务是从canvas对象中提取图像文件并将其附加到FormData对象上进行操作。 问题是，虽然canvas具有toDataURL函数以返回图像文件的表示形式，但FormData对象只接受来自File API的File或Blob对象。 Mozilla解决方案在canvas上使用了以下仅限Firefox的功能： var file = canvas.mozGetAsFile("foo.png"); ...这在WebKit
Our app is a Polymer 2 single page app, where we have some custom build steps to generate versioned files of the resources (gulp-rev-all). All is working well, but we need to have implement a safe refresh of the application. What we are doing is that we keep latest installed git commit in a file that is served together with the application, and we pull for this file in intervals and alerts the
我们的应用程序是一个Polymer 2单页面应用程序，我们有一些自定义构建步骤来生成资源的版本化文件（gulp-rev-all）。 所有工作都很好，但我们需要实施应用程序的安全刷新。 我们正在做的是我们将最新安装的git commit保存在与应用程序一起提供的文件中，并且我们会间隔地提取该文件，并提醒用户有可用的新版本并要求他们单击按钮刷新应用程序。 问题是，我们正在使用服务工作者预先缓存作为默认聚合物版本提供。 这意味着当
Lets say I want to write set of mixins. As I understand it, each mixin should provide some piece of functionality and don't affect or rely any other mixins (except when it extends another mixin directly). So i write something like this: const MixinA = superClass => class extends superClass { connectedCallback() { this.addEventListener('click', this.handleClick_); } /** *
可以说我想写一组mixin。 据我所知，每个mixin应该提供一些功能，并且不影响或依赖任何其他mixin（除非直接扩展另一个mixin）。 所以我写这样的东西： const MixinA = superClass => class extends superClass { connectedCallback() { this.addEventListener('click', this.handleClick_); } /** * @return {Array.<string>} */ static get observers() { return [ 'handleMyPropChan
So I'm new to polymer and decided to take a look at polymer 2.0. I found the Polymer CLI and decided to create a couple of custom elements. I've managed to get them rendering on a page but I'm hoping to try to better understand the best practices for having multiple elements on the same page. Right now my current project structure looks like this. index.html - used to display t
所以我是聚合物新手，决定看看聚合物2.0。 我找到了Polymer CLI，并决定创建一些自定义元素。 我设法让它们在页面上呈现，但我希望能够更好地理解在同一页面上具有多个元素的最佳做法。 现在我目前的项目结构看起来像这样。 index.html - used to display the elements elements ->first-element -> bower_components -> demo -> index.html -> test -> first-element_test.html
I have question about publishing/ building element in Polymer 2.0 I make polymer 2 application using bower. Then I coded my element. I can use it in this project when i call <my-element></my-element> in index.html. In my Polymer class i have some functions. What should I do in my new project where I will import my builded element <my-element></my-element> to call th
我对Polymer 2.0中的发布/构建元素有疑问 我使用凉亭制作聚合物2应用程序。 然后我编写了我的元素。 当我在index.html中调用<my-element></my-element> ，我可以在此项目中使用它。 在我的聚合物类中，我有一些功能。 我应该在我的新项目中做什么，我将导入我的构建元素<my-element></my-element>来调用这个函数？ 例如，我将有一些文件form.html，在这里我将有<my-element></my-eleme