Home Web Front-end JS Tutorial Usage example of webupload upload plug-in in jQuery

Usage example of webupload upload plug-in in jQuery

Aug 13, 2017 pm 02:52 PM
jquery web

This article mainly introduces the use of Jquery upload plug-in webupload in detail, which has certain reference value. Interested friends can refer to it

WebUploader is developed by Baidu WebFE (FEX) team A simple modern file upload component developed based on HTML5 and supplemented by FLASH. It can give full play to the advantages of HTML5 in modern browsers without abandoning the mainstream IE browser. It uses the original FLASH runtime and is compatible with IE6+, iOS 6+, android 4+. The two sets of runtimes have the same calling method and can be selected by the user. The use of concurrent uploading of large files in fragments greatly improves the efficiency of file uploading.

This plug-in is easy to use and has more powerful functions. It is more powerful than ajaxfileupload. You can download it from the official website.

Currently, only the image batch upload function is used in the project. The official examples have been written in great detail. Here is how to migrate the official examples to your own project:


// 实例化
 uploader = WebUploader.create({
  pick: {
  id: '#filePicker',
  label: '点击选择图片'
  },
  formData: {
  uid: 123
  },
  dnd: '#dndArea',
  paste: '#uploader',
  swf: '../../dist/Uploader.swf',
  chunked: false,
  chunkSize: 512 * 1024,
  server: '../../server/fileupload.php',
  // runtimeOrder: 'flash',

  // accept: {
  // title: 'Images',
  // extensions: 'gif,jpg,jpeg,bmp,png',
  // mimeTypes: 'image/*'
  // },

  // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候,把图片打开。
  disableGlobalDnd: true,
  fileNumLimit: 300,
  fileSizeLimit: 200 * 1024 * 1024, // 200 M
  fileSingleSizeLimit: 50 * 1024 * 1024 // 50 M
 });
Copy after login

1. The server is modified to use its own background processing class to obtain the images uploaded by the plug-in through HttpFileCollection files = System.Web.HttpContext.Current.Request.Files; request.Files.

2. The sample program enables compression by default. This can be set. When the image is larger than a certain size, the image can be automatically compressed. If compression is not required, you need to add compress:false, attribute ## during initialization.

#3,


accept: {
  title: 'Images',
  extensions: 'gif,jpg,jpeg,bmp,png',
  mimeTypes: 'image/*'
  },
Copy after login

The official example of uploading pictures has commented out the picture filtering for some reason. If you want to upload only pictures, then Need to remove the comment

4. Added the judgment of the pixel size of the picture. I used the uploadAccept method. I submitted the picture and then judged it in the background. (I don’t know if there is a better way.) Because the plug-in The file class itself can process files, so it does not obtain the pixel attributes separately. Example:


 uploader.on('uploadAccept', function (object, ret) {
 
  var resJson = $.parseJSON(ret._raw);
  if (resJson.result == "error") {
   alert(object.file.name + "象素太低,请检查上传!");
   return false;
  }
 
  });
Copy after login
When this method returns false, it will cause the image upload to fail. Therefore, after the background determines the pixels, the status of the image upload is changed through the status returned by the background.

The above is the detailed content of Usage example of webupload upload plug-in in jQuery. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to use PUT request method in jQuery? How to use PUT request method in jQuery? Feb 28, 2024 pm 03:12 PM

How to use PUT request method in jQuery? In jQuery, the method of sending a PUT request is similar to sending other types of requests, but you need to pay attention to some details and parameter settings. PUT requests are typically used to update resources, such as updating data in a database or updating files on the server. The following is a specific code example using the PUT request method in jQuery. First, make sure you include the jQuery library file, then you can send a PUT request via: $.ajax({u

jQuery Tips: Quickly modify the text of all a tags on the page jQuery Tips: Quickly modify the text of all a tags on the page Feb 28, 2024 pm 09:06 PM

Title: jQuery Tips: Quickly modify the text of all a tags on the page In web development, we often need to modify and operate elements on the page. When using jQuery, sometimes you need to modify the text content of all a tags in the page at once, which can save time and energy. The following will introduce how to use jQuery to quickly modify the text of all a tags on the page, and give specific code examples. First, we need to introduce the jQuery library file and ensure that the following code is introduced into the page: &lt

How to enable administrative access from the cockpit web UI How to enable administrative access from the cockpit web UI Mar 20, 2024 pm 06:56 PM

Cockpit is a web-based graphical interface for Linux servers. It is mainly intended to make managing Linux servers easier for new/expert users. In this article, we will discuss Cockpit access modes and how to switch administrative access to Cockpit from CockpitWebUI. Content Topics: Cockpit Entry Modes Finding the Current Cockpit Access Mode Enable Administrative Access for Cockpit from CockpitWebUI Disabling Administrative Access for Cockpit from CockpitWebUI Conclusion Cockpit Entry Modes The cockpit has two access modes: Restricted Access: This is the default for the cockpit access mode. In this access mode you cannot access the web user from the cockpit

How to remove the height attribute of an element with jQuery? How to remove the height attribute of an element with jQuery? Feb 28, 2024 am 08:39 AM

How to remove the height attribute of an element with jQuery? In front-end development, we often encounter the need to manipulate the height attributes of elements. Sometimes, we may need to dynamically change the height of an element, and sometimes we need to remove the height attribute of an element. This article will introduce how to use jQuery to remove the height attribute of an element and provide specific code examples. Before using jQuery to operate the height attribute, we first need to understand the height attribute in CSS. The height attribute is used to set the height of an element

Use jQuery to modify the text content of all a tags Use jQuery to modify the text content of all a tags Feb 28, 2024 pm 05:42 PM

Title: Use jQuery to modify the text content of all a tags. jQuery is a popular JavaScript library that is widely used to handle DOM operations. In web development, we often encounter the need to modify the text content of the link tag (a tag) on ​​the page. This article will explain how to use jQuery to achieve this goal, and provide specific code examples. First, we need to introduce the jQuery library into the page. Add the following code in the HTML file:

Understand the role and application scenarios of eq in jQuery Understand the role and application scenarios of eq in jQuery Feb 28, 2024 pm 01:15 PM

jQuery is a popular JavaScript library that is widely used to handle DOM manipulation and event handling in web pages. In jQuery, the eq() method is used to select elements at a specified index position. The specific usage and application scenarios are as follows. In jQuery, the eq() method selects the element at a specified index position. Index positions start counting from 0, i.e. the index of the first element is 0, the index of the second element is 1, and so on. The syntax of the eq() method is as follows: $("s

Is PHP front-end or back-end in web development? Is PHP front-end or back-end in web development? Mar 24, 2024 pm 02:18 PM

PHP belongs to the backend in web development. PHP is a server-side scripting language, mainly used to process server-side logic and generate dynamic web content. Compared with front-end technology, PHP is more used for back-end operations such as interacting with databases, processing user requests, and generating page content. Next, specific code examples will be used to illustrate the application of PHP in back-end development. First, let's look at a simple PHP code example for connecting to a database and querying data:

How to implement h5 to slide up on the web side to load the next page How to implement h5 to slide up on the web side to load the next page Mar 11, 2024 am 10:26 AM

Implementation steps: 1. Monitor the scroll event of the page; 2. Determine whether the page has scrolled to the bottom; 3. Load the next page of data; 4. Update the page scroll position.

See all articles