Ajax request C # A Method in the background

Front-end:

1 $. ajax ({2 URL: "transbloodrequisition. aspx/AAA ", // method 3 in the background of the page contenttype:" application/JSON ", // It Must Be application/JSON 4 type:" Post ", // It must be post 5 data: "{}", // format: "{A: 1, B: 2}" 6 datatype: "JSON ", // JSON 7 success: function (result) {8 alert (result. d) 9} 10 })

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Background:

1 [webmethod (enablesession = true)] 2 public static string AAA () 3 {4 return "BB"; 5}

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// Enablesession = true use session // when there are parameters, the background parameter name must be consistent with the parameters passed in the foreground, and the sequence can be different

Ajax request C # A Method in the background