laravelcache缓存解决访问速度

编程

查询近7天 近30天的数据,并且把每天的数据拿出来生成一个连续多日的折线图:

思路:要拿到每天的数据,循环查询数据库速度很慢,近7天就要查7次,近30天就要查30次,如果一次拿7天或者30天,再循环判断出每天的又需要大改原逻辑,所以想了下,除了今天的数据是实时的,其他时间数据已经不会变了,就把他们存到缓存中,近7天第一天的数据就缓存一天,第二天就缓存两天,因为明天再查近7天,这个第一天就不用了,但是结合还要查近30天,所以近7天的第一天就缓存24天,后面依次推。

代码:

if($time_type==6){

//组合数据

$date = [];

$data = [];

for ($i=0; $i<=6; $i++){

$date[$i] = date("n.j" ,strtotime( "+" . $i-6 ." days", time()));

$time_search_string["start_time"] = strtotime(date("Y-m-d" ,strtotime( "+" . $i-6 ." days", time())));

$time_search_string["end_time"] = strtotime(date("Y-m-d" ,strtotime( "+" . $i-6 ." days", time())))+86399;

//如何是今天则取实时数据

if( $time_search_string["start_time"]==strtotime(date("Y-m-d",time())) ){

$data[$i] = $this->VisitRankData($department_id,$del_type,$time_search_string,$position_status,1);

}else{

if (!Cache::has("visit_echart_".$department_id."_".$del_type."_".$time_search_string["start_time"]."_".$time_search_string["end_time"]."_".$position_status."_1")) {

$data[$i] = $this->VisitRankData($department_id,$del_type,$time_search_string,$position_status,1);

Cache::put("visit_echart_".$department_id."_".$del_type."_".$time_search_string["start_time"]."_".$time_search_string["end_time"]."_".$position_status."_1",json_encode($data[$i]),($i+24)*24*60);

} else {

$data[$i]=json_decode(Cache::get("visit_echart_".$department_id."_".$del_type."_".$time_search_string["start_time"]."_".$time_search_string["end_time"]."_".$position_status."_1"),true);

}

}

}

}else{

//组合数据

$date = [];

$data = [];

for ($i=0; $i<=29; $i++){

$date[$i] = date("n.j" ,strtotime( "+" . $i-29 ." days", time()));

$time_search_string["start_time"] = strtotime(date("Y-m-d" ,strtotime( "+" . $i-29 ." days", time())));

$time_search_string["end_time"] = strtotime(date("Y-m-d" ,strtotime( "+" . $i-29 ." days", time())))+86399;

//如何是今天则取实时数据

if( $time_search_string["start_time"]==strtotime(date("Y-m-d",time())) ){

$data[$i] = $this->VisitRankData($department_id,$del_type,$time_search_string,$position_status,1);

}else{

if (!Cache::has("visit_echart_".$department_id."_".$del_type."_".$time_search_string["start_time"]."_".$time_search_string["end_time"]."_".$position_status."_1")) {

$data[$i] = $this->VisitRankData($department_id,$del_type,$time_search_string,$position_status,1);

Cache::put("visit_echart_".$department_id."_".$del_type."_".$time_search_string["start_time"]."_".$time_search_string["end_time"]."_".$position_status."_1",json_encode($data[$i]),($i+1)*24*60);

} else {

$data[$i]=json_decode(Cache::get("visit_echart_".$department_id."_".$del_type."_".$time_search_string["start_time"]."_".$time_search_string["end_time"]."_".$position_status."_1"),true);

}

}

}

}

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