Ajax : Asynchronous JavaScript and XML
Ajax is not a technology, It is a collection of technologies. It is used for creation a fast and dynamic web pages.
Before the Ajax, for accessing any data from the server side, it compulsory to reload whole page on client side. Ex, if the user submits a form with information, it takes more time to validate and returns response to the client. With the help of Ajax, you can update a part of web page, instead of reloading whole page. ADS_TO_REPLACE_1
Struts2 use a toolkit called Dojo. It provides Ajax support. Ajax allows the developers to develop GUI like web applications.
struts2-dojo-plugin-2.2.1.1.jar
Note: If a client send a Ajax request, the server does not know it is script request, it woks another request. ADS_TO_REPLACE_2
Ajax is the combination of different technologies, which works together. These technologies are tools are as follows..
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