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How does the JS AJAX frontend pass parameters to the function of the background class?

高洛峰
高洛峰Original
2017-02-16 17:28:341543browse

This article mainly introduces the method of passing parameters from the JS AJAX frontend to the function of the background class. There is a good example below. Friends who need it can refer to

to publish the methods of ordinary pages as WebMethod. Accessed as Javascript.

1 The method must be decorated with public static, and the return type is preferably string.
2 Add the [WebMethod] attribute before the method.
3 When accessing the client, use the Post method to interact with Json as data. Otherwise, the entire page of HTML will be returned.
4 When accessed by jQuery, data.d in the callback is the real return content.
5 The access URL is: http://abc.com/abc.aspx/GetTime If there is a public static method of GetTime.

Example:
abc.aspx


[WebMethod]
public static string GetTime()
{
return DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
}


----------- ----
Script (call jQuery as an example)


$.ajax({
url:url,
method:"post",
dataType:"json",
contentType:"application/json; charset=UTF-8",
success: function(data){
$("#id").html(data.d); //见第3点
}
});

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