JavaScript jQuery $.post $.ajax usage _jquery

Jquery.post (URL, [data], [callback], [Type]): Asynchronous request using POST method


Parameters:

URL (String): The URL address where the request is sent.

Data (MAP): (optional) The information to be sent to the server, expressed as a Key/value key-value pair.

Callback (function): (optional) the callback function (which is invoked only if the response return state is success) when loading succeeds.

Type (String): (optional) The official description is: type of data to is sent. The type that should actually be requested for the client (Json,xml, etc.)

This is a simple POST request function to replace the complex $.ajax. Callback functions can be invoked when the request succeeds. If you need to perform a function when an error occurs, use $.ajax. Sample code:

Ajax.aspx:

Response.ContentType = "Application/json"; Response.Write ("{result: '" + request["Name"] + ", Hello! (This message comes from server) '} '); JQuery code:
$.post ("Ajax.aspx", {Action: "Post", Name: "Lulu"}, function (data, textstatus) {//data can be xmldoc, j            Sonobj, HTML, text, and so on. This        For this AJAX-requested option configuration information, refer to the This alert (Data.result) as mentioned in Jquery.get (). }, "JSON"; Click Submit:

This sets the requested format to "JSON":


$.ajax () This is the underlying AJAX implementation of jquery. Simple and easy-to-use high-level implementation see $.get, $.post, etc.

Here are a few Ajax event parameters: Beforesend, Success, complete, error. We can define these events to deal well with each of our AJAX requests.

$.ajax ({url: ' stat.php ',

Type: ' POST ',

Data:{name: "Keyun"},

DataType: ' HTML ',

timeout:1000,

Error:function () {alert (' Error loading PHP document ');

Success:function (Result) {alert (result);}

});