jQuery DataTables插件 从服务器端获取数据的办法

/**  *  @param {string} sSource HTTP source to obtain the data from (sAjaxSource)  *  @param {array} aoData A key/value pair object containing the data to send  *    to the server  *  @param {function http://www.fpzhangsha.com/linked/20130311.do } fnCallback to be called on completion of the data get  *    process that will draw the data on the page.  *  @param {object} oSettings DataTables settings object  */   "fnServerData": function ( sUrl, aoData, fnCallback, oSettings ) {       oSettings.jqXHR = $.ajax( {       "url":  sUrl,     "data": aoData,       "success": function (json) {           if ( json.sError ) {               oSettings.oApi._fnLog( oSettings, 0, json.sError );           }           $(oSettings.oInstance).trigger('xhr', [oSettings, json]);               fnCallback( json );           },       "dataType": "json",       "cache": false,       "type": oSettings.sServerMethod,       "error": function (xhr, error, thrown) {           if ( error == "parsererror" ) {               oSettings.oApi._fnLog( oSettings, 0, "DataTables warning: JSON data from "   "server could not be parsed. This is caused by a JSON formatting error." );           }       }       });   },   http://www.fpnanchang.com/linked/20130311.do