Talking about the new page without refreshing ajax technology, talking about page refreshing ajax

Talking about the new page without refreshing ajax technology, talking about page refreshing ajax

Currently, most websites use ajax to perform page refreshing.

What is no refreshing: ajax can achieve data interaction between pages and the background, and users cannot feel any page refreshing at all. This is the refreshing of AJAX.

Ajax implementation:

You can encapsulate ajax to facilitate calling of each page:

Function MyAjax (type, url, callBack, data, dataType, asyncType)

{

If (dataType = null) {dataType = "text ";}

If (asyncType = null) {asyncType = true ;}

$. Ajax ({

Type: type, // post or get

Url: url, // it is best to add a url + Math. random () to ensure that the page of each request is regarded as different by the browser.

Data: data, // here is the parameter to be passed, in the format of data: "{paraName: paraValue }"

DataType: dataType, // string, xml, script, json, text

Async: asyncType, // synchronous asynchronous true/false

Error: function (XmlHttpRequest, xmlhttp, info ){

},

Success: function (result ){

// Callback function, result, Return Value

CallBack (result );

},

});}

Call: MyAjax ('post', "url? Id = "+ id, DoOK );

Note: async: true indicates asynchronous. This means that when ajax sends a request, the foreground will continue to execute the script after the ajax block while waiting for the server to return, success will not be executed until the server returns a positive result, which is equivalent to opening two threads; false is synchronization, that is, the foreground will wait for the server to return data before execution.