在每一列的列头加上,renderer:showTip;
{header: "<s:text name="report.enabled">", dataIndex: 'strEnabled', width: 0, sortable: true ,menuDisabled : true,renderer:showTip }
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//表格中每一列的tip提示
function showTip(data, metadata, record, rowIndex, columnIndex, store){
metadata.attr ='" ext:qtip="' + data;
return data;
}