thinkphp加锁抢购商品

<?php
namespace Service\Controller;

use Base\Webbase;

class SeckillController extends Webbase
{
    /**
     * 预约操作
     */
    public function order()
    {
        $cond1 = array(
          'starttime'  =>   array('ELT',time()),
          'endtime'   =>   array('EGT',time())
        );
        M()->startTrans();//开启事务
        $plan = M('maskplans')->lock(true)->where($cond1)->find();
//        echo M('maskplans')->getLastSql();
//        dump($plan);die();
        if (!$plan  || $plan['plan_num']<=$plan['real_num'])
        {
            $this->weberror(self::THIS_ACTION_ERROR,"当前场次已结束!");
        }
        $cond2 = array(
            'idcard'=> $_POST['idcard'],
            'add_time' => array("EGT",strtotime("-7 day"))
        );
       $order = M('maskorders')->where($cond2)->find();
        if ($order)
        {
            $this->weberror(self::THIS_ACTION_ERROR,"每人7天只能预约1次，请勿重复预约!");
        }
        $postData = array(
//          'name'=>$_POST['name'],
//          'idcard'=>$_POST['idcard'],
//          'lat'=>$_POST['lat'] ,
//          'lon'=>$_POST['lon'] ,
//            'sku'=>rand(100000,999999),
//            'add_time'=>time()
          'name'=>"a".rand(100,999),
          'idcard'=>rand(1000000,9999999),
          'lat'=>1,
          'lon'=>2,
          'sku'=>rand(100000,999999),
          'add_time'=>time()
        );
        if (!$postData['name'] || !$postData['idcard' || !$postData['lon'] || !$postData['lat'])
        {
            $this->weberror(self::THIS_ACTION_ERROR,"信息填写错误!");
        }
        $status =M('maskplans')->lock(true)->where(array('id'=>$plan['id']))->setInc('real_num');
        if ($status)
        {
            $re = M('maskorders')->add($postData);
            if ($re)
            {
                $data = array(
                    'sku'=>$postData['sku']
                );
                M()->commit();//事务提交
                $this->websuccess(self::OUTPUT_SUCCESS,"预约成功",$data);
            }
        }
        M()->rollback();//回滚
        $this->weberror(self::THIS_ACTION_ERROR,"预约失败!");

    }

    /**
     * 我的预约
     */
    public function myAppointment()
    {
        $idcard = $_POST['idcard'];
        $re = M('maskorders')->where(array('idcard'=>$idcard))->order('add_time desc')->select();
        if ($re)
        {
            foreach ($re as &$item)
            {
                $item['add_time'] = date("Y-m-d H:i:s",$item['add_time']);
            }

            $this->websuccess(self::OUTPUT_SUCCESS,"成功!",$re);
        }
        $this->websuccess(self::OUTPUT_SUCCESS,"暂无数据!");
    }

    /**
     * 预约计划列表
     */
    public function appointList()
    {
        $cond = array(
          'end_time' =>array('GT',time())
        );
        $lists = M('maskplans')->where($cond)->select();
        if ($lists)
        {
            foreach ($lists as &$item)
            {
                if ($item['starttime']<time() && $item['endtime'] >time())
                {
                    $item['show'] = 1;
                }else{
                    $item['show'] = 0;
                }
                $item['starttime'] = date("Y-m-d H:i:s",$item['starttime']);
                $item['endtime'] = date("Y-m-d H:i:s",$item['endtime']);

            }
            $this->websuccess(self::OUTPUT_SUCCESS,"成功!",$lists);
        }
        $this->websuccess(self::OUTPUT_SUCCESS,"暂无数据!");
    }
}
/*
 create table yixiang_maskorders(
`id` int(11) NOT NULL AUTO_INCREMENT primary key,
`name` varchar(255) NOT NULL COMMENT "姓名",
`idcard` varchar(255) NOT NULL COMMENT "身份证号",
`lat` varchar(255) NOT NULL COMMENT "经度",
`lon` varchar(255) NOT NULL COMMENT "纬度",
`sku` varchar(255) NOT NULL COMMENT "编号",
`add_time` varchar(255) NOT NULL COMMENT "抢购时间",
);


create table yixiang_maskplans(
`id` int(11) NOT NULL AUTO_INCREMENT primary key,
`starttime` int(11) NOT NULL COMMENT "计划投放开始时间",
`endtime` int(11) NOT NULL COMMENT "计划投放结束时间",
`plan_locale` varchar(255) NOT NULL COMMENT "地点",
`plan_num` int(11) NOT NULL COMMENT "计划发放量",
`real_num` int(11) NOT NULL COMMENT "实际发放量"
);

使用ab测试：

效果应该如图所示