2014 Sinsing jquery reading section III Ajax

ajax*********************

1.Ajax is a shorthand for asynchronous JavaScript and XML, which refers to asynchronous JavaScript and XML, which simply means that the entire page is not flushed and the server side interacts with the data and can be displayed on the Web page.

The 2.jQuery support for Ajax is perfect, and it allows us to read the information from the server in a GET or post manner and display it.

3.jQuery supports Ajax in several ways.

Load Method *******************

The 1.load method loads the data from the server and puts the returned data into the selected element in the syntax format:

$ (selector). Load (url,data,callback);

2. The URL here is the URL that we want to send the data to, the parameter is optional, it specifies a collection of query string key-value pairs sent with the request, and the optional callback parameter is the name of the function executed after the Load method completes.

3. For example, our background server in PHP, for example, we first write a foreground HTML file, the code is as follows:

Then we also need to create a new a.php file in the WWW directory or the Htdocs directory, which reads as follows:
<?phpecho "I am Sinsing";
Then we run the page, when we click on the "Query" button, we found that the above text does not change, but "click on the button below to display information" has become "I am Sinsing", this is a simple asynchronous transfer.

Description ****************
1. Load also has other parameters, which can be referenced in the manual.
2. There are also two function applications that are also very extensive, that is get and post, which we'll cover in the next section.


2014 Sinsing jquery reading section III Ajax