JSP页面进入时不加载数据列表

"columns": [
{data: function (row, type, val, meta ) {
return '<input type="checkbox" value="' + row.custId + '" />';
}},
{ "data": "custName" },
{data:function (row, type, val, meta ) {
return caseEnum("cn.sunline.bolt.Enum.GenderType",row.custGender);
}},
{data: function (row, type, val, meta ) {
return caseEnum("cn.sunline.bolt.Enum.PapersType",row.custCertiType);
}},
{ "data": "custIdNo" },
{ "data": function (row, type, val, meta ) {
return parseDate(row.custBirthday);
}},
],
"paging": true,
"deferRender": true,
"deferLoading": 0