Introduction to several methods of preventing Ajax caching

1, in the service side (such as PHP) plus "header (" Cache-control:no-cache,must-revalidate ");" ; 2, in the AJAX send the request before adding "Anyajaxobj.setrequestheader" ("If-modified-since", "0"); ; 3, in the AJAX send the request before

Ajax Introductory Learning fourth day AJAX introduction

Ajax consists of HTML, JavaScript technology, DHTML, and DOM, an excellent way to translate awkward Web interfaces into interactive Ajax applications. The author of this article is an Ajax expert who demonstrates how these technologies work together-

JS get DOM Object Ajax operations read and write cookies

var LF = {};lf.version = ' 1.0.0 ';Global functionsfunction $ (objname) {return document.getElementById (objname);}function $name (objname) {Return Document.getelementsbyname (objname);}function $tag (objname) {Return document.getElementsByTagName

jquery implements star comment code _jquery based on Ajax

This example describes the jquery implementation of the star Comment code based on Ajax. Share to everyone for your reference. Specifically as follows: Here use jquery to imitate the comment on the star of the network, AJAX comment module, the

Similar to Gmail Ajax feedback Display _ page background

Copy Code code as follows: new document (default settings) display location: Upper left corner vanishing time: not disappearing onclick= "feedbackmessage (' message hint Test 1 ... '); return false" href= "#"

Ajax read txt and the TXT content for pagination display function _ajax related

Below to share the AJAX read txt and the TXT content page to display the core code, nonsense said more, directly affixed to the code. function transferstring (content) {var string = content; try{string=string.replace (/\r\n/g, "")

Ajax is related to the JSON data storage format of user interaction _ajax

Data storage is the core function of JavaScript, which is an easy to confuse problem in the early learning. It's not the kind of special effects that look like page slides, slide shows, fading, and so on. Properly storing the data helps us organize

Ajax implementation Waterfall Flow layout _ajax related

Waterfall flow is currently a more popular site interface layout, uneven layout of multiple columns and to reach the bottom of the automatic loading way, so that the site in the visual and user experience can be greatly improved. The earliest use of

Using dojo and JSON to build an infinite class of Ajax dynamically loaded function module tree _dojo

After reading the article "using Hibernate to realize the tree structure infinite level classification", I also want to post and share the complete demo (including source code) of the functional module tree that I use in all the projects I developed.

Ajax advanced functionality Ajax sends data to the server _ajax related

1. Preparing to send data to the server One of the most common uses of Ajax is to send data to the server. The most typical scenario is to send form data from the client, which is the value entered by the user in each INPUT element contained in the

Ajax technology Composition and core principle analysis _ajax related

This article mainly analyzes the Ajax technology composition principle, for everybody reference, the concrete content is as follows 1, AjaxFeatures: local refresh, improve user experience, data from the server business load 2, the technical

Graphics and Text analysis Ajax principles _ajax Related

First on schematic diagram: Background: 1. Traditional Web sites, submitting forms, need to reload the entire page. 2. If the server fails to return response for a long time, the client will be unresponsive and the user experience is poor.

Ajax commodity Classification Three-level linkage simple implementation (case) _ajax related

Thinking Analysis: Effect: When the page is loaded, using AJAX asynchronous back to the request data, loading a class of goods, when the choice of a class of goods loaded two-class goods, the choice of two-class goods loaded three-class goods.

Ajax Learning Full Set (most complete classics) _ajax related

Introduction to Ajax Ajax, "Asynchronous JavaScript and XML" (Asynchronous JavaScript and XML), refers to a web development technology that creates interactive Web applications. Ajax is not a new programming language, but a new way of using

Reverse Ajax 30 Minute quick Master _ajax related

Scenario 1: When there are new messages, the Web page automatically pops up the message without requiring the user to manually refresh the Inbox. Scenario 2: When the user's mobile phone scan completes the two-dimensional code in the page, the page

Problems encountered in using GET and post in Ajax and solutions _ajax related

Problems with Get encountered: 1. Question one. Caching: When each access URL is the same, the client directly reads the contents of the local cache, even if the background data changes the foreground will not change; Solution: In? The following

Ajax Basics Tutorials (ii) _ajax related

In the previous article to introduce the AJAX basic detailed tutorial (i), about Ajax in the open method of the third parameter asynchronous and synchronization problem, today, to continue to chatter, first followed by the code var obtn =

Ajax processing server returns three data type methods _ajax related

The principle is simple, the structure is basically unchanged, just change the way of processing the returned data. 1.text/html formatthis type of return processing is simple, and is used directly as a string. For ease of use, encapsulate the

Error handling methods _ajax related to Ajax mistakes

1, Ajax sends the request state to judge if else statement problem. var xhr = new XMLHttpRequest (); ("Get", strURL); xhr.onreadystatechange = function () { if (xhr.readystate = = 4) { if (xhr.status ===200) {

Classic 20-Way Ajax face test (must be known) _ajax related

1, what is Ajax, why to use Ajax (please talk about your knowledge of Ajax) What is Ajax: Ajax is the abbreviation for "Asynchronous JavaScript and XML". He refers to a web development technology that creates interactive Web applications. Ajax

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