EXTJS 4.2 资料 将store 传到后台

                var lstAddRecord = new Array();
                store.each(function (record) {
                    lstAddRecord.push(record.data);
                });
                Ext.Ajax.request({
                    url: 'function/rivaldata/rivalDataAction.do?tag=add',
                    params: {
                        strJson: Ext.encode(lstAddRecord)
                    }
                });