下面小编就为大家带来一篇深入研究HTML5实现图片压缩上传功能。小编觉得挺不错的,现在分享给大家。也给大家一个参考,一起跟随小编过来看看吧上篇文章中提到移动端上传图片,我们知道现在流量还是挺贵的,手机的像素是越来越高,拍个照动不动就是好几M,伤不起。虽然客户端可以轻轻松松实现图片压缩再上传,但是我们的应用还可能在浏览器里面打开,怎么办呢,图片压缩。受以前PC上的开发思维影响,尼玛js哪有权限去操作文件,哪有资格压缩图片啊,搞不了,你们客户端去整吧。只能说自己还是有些井底之蛙了。在HTML5的影响下,前端能干的事情越来越多了,开发的功能逼格也越来越高了,H5万岁!前端的魅力也在这,过去不可能的并不意味现在、以后不可能,努力吧,骚年!js怎么压缩图片???潜意识里确实一开始是觉得实现不了,后来翻阅资料,研究了下,发现可行!搞起!先说说H5以前我们怎么上传,一般是借助插件、flash或者干脆一个
简介:下面小编就为大家带来一篇深入研究HTML5实现图片压缩上传功能。小编觉得挺不错的,现在分享给大家。也给大家一个参考,一起跟随小编过来看看吧上篇文章中提到移动端上传图片,我们知道现在流量还是挺贵的,手机的像素是越来越高,拍个照动不动就是好几M,伤不起。虽然客户端可以轻轻松松实现图片压缩再上传,但是我们的应用还可能在浏览器里面打开,怎么办呢,图片压缩。受以前PC上的开发思维影响,尼玛js哪有权限去操作...
简介:这篇文章主要介绍了JS+HTML5实现上传图片预览效果,结合完整实例形式分析了javascript上传图片本地预览的具体操作步骤与相关实现技巧,需要的朋友可以参考下本文实例讲述了JS+HTML5实现上传图片预览效果。分享给大家供大家参考,具体如下:在项目中遇到用input标签file类型的文件上传,想实在上传之前进行图片的预览功能;之前的做的一个解决方案是文件先上传上去然后返回地址再显示在页面上,...
简介:一、为了实现高级群发功能,需要解决的问题1、通过微信接口上传图文消息素材时,Json中的图片不是url而是media_id,如何通过微信接口上传图片并获取图片的media_id?2、图片存储在什么地方,如何获取?二、实现步骤,以根据OpenID列表群发图文消息为例1、准备数据 我把数据存储在数据库中,ImgUrl字段是图片在服务器上的相对路径(这里的服务器是自己...
4. 推荐10款表格树源码
简介:生成的例子如下: 好吧,不知道要怎么上传图片。。。 <?php /** * 树形展示 * #-------------------------------# * # a | b&nb
Introduction: Simple PHP upload image, delete image implementation code to upload image: if (!empty($_FILES["img"]["name"])) { //Extraction File domain content name, and determine $path="uppic/"; //Upload path if(!file_exists($path)) { //Check whether...
6. Summary of how to use Uploadify
##Introduction: HTML5 /CSS3 classic case - drag and drop to upload images without plug-ins (1): Uploading is basically a common occurrence in projects, generally using: 1. form submission 2. flash3, html5form submission will refresh the page, making it difficult to upload asynchronously; Flash may be used more often, because it can take into account almost all browsers. I have always used jquery's uploadify as the upload tool in the project. Uploadify is also based on HTML5 and seems to be charged. You can go to the official website to take a look; Of course...
7. Detailed introduction to collection and organization
Introduction: PHP configured using IIS under Windows cannot upload files. This has always been a confusing point for many netizens. I have collected and organized it, hoping to help you continue the article "Configuring PHP with IIS in Windows Server 2003" The server runs normally using Apache2+PHP, but after switching to IIS+PHP, there have been problems that the environment variables of php.ini cannot be read, and the verification code in php cannot be displayed. Now some people have reported the problem of being unable to upload pictures. The process of replacing Apache2 from IIS is just to open I...
8. Detailed introduction to drag and drop to upload images
Introduction: This article mainly introduces HTML5+CSS3 to implement drag-and-drop upload of images without plug-ins (supports preview and batch). Now html5 provides API and File , FileReader, XMLHttpRequest and other powerful APIs provide the possibility for us to drag and drop uploads. Those who are interested can find out. Uploading is basically something that often occurs in projects. It is generally used: 1. form submission 2. flash3, HTML5 form submission will refresh the page, and it is difficult to upload asynchronously; flash may be used more because it can...
9. Technical explanation of uploading pictures on WeChat
# #Introduction: This article mainly introduces the development of WeChat upload image component using require.js+vue+vue-router+vue-resource. It has certain reference value. Interested friends can refer to it because the project is thinkPHP. When building a back-end framework, I have always used multi-page back-end routing. I have no idea how to use the popular webpack (forgive me for being a noob, and I am the only one promoting Vue...). I have no choice but to use Vue. Only improve on the original basis. The giant using webpack...
10.
3 recommended articles about sending graphic messages
Introduction: This article mainly provides a detailed analysis of the .Net code for sending graphic messages in the development of WeChat public platform. Interested friends can refer to what we have talked about before. Let WeChat send us ordinary text messages. Let’s take a look at how to send graphic messages. It should be noted that what is said here is to let WeChat send it to us. Instead of us taking a picture and sending it to WeChat for processing, we upload the picture. It will be introduced in the following chapters. The following is the function for sending graphic messages, involving title (title), description (summary), picurl (picture), link (url)...
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