Example Analysis of Ajax long connection Project

This article mainly introduces the example analysis of Ajax long connection project, which is very detailed and has certain reference value. Friends who are interested must finish it!

The so-called long connection is to constantly send requests, block the requests on the server side, resend the request every time the request time is exceeded, maintain the connection, and obtain the response data of the server side at any time.

Project case:

The code is as follows:

Function connection () {

$.ajax ({

Type: "GET"

Url: "/ api2/session/event?"

Data: {

"uid": obj.uid

"sessionID": "cool"

}

Success:function (serverData) {

Connection ()

}

Error:function (XMLHttpRequest, textStatus, errorThrown) {

Connection ()

}

});

}

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