搜尋

首頁 >後端開發 >php教程 >優化客戶端呼叫服務端介面減少請求資料容量

優化客戶端呼叫服務端介面減少請求資料容量

jacklove
jacklove原創
2018-06-09 09:09:521508瀏覽

因專案需要，需要記錄使用者未來3天的預約時間，每個預約時段為1小時。

例如：00:00:00～00:59:59 或01:00:00～01:59:59 等為一個預約時段

前端程式碼如下：

nbsp;HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

 
  <meta>
  <title> 提交预约日期 </title>
  <style>
  .title{color:#FF0000;}
  .topic{font-size:18px; font-weight:bold;}
  </style>
  <script></script>
  <script>    function fsubmit(){
        var timetable = [];
        $("#myform input[type=checkbox]").each(function(){            if(this.checked){
                timetable.push($(this).val());
            }
        });        if(timetable.length==0){
            alert(&#39;请选择预约时间&#39;);
            return false;
        }
        $.post("http://localhost/server.php",{timetable:timetable}).done(function(data){            if(data[&#39;success&#39;]==true){
                alert(&#39;提交成功&#39;);                
            }else{
                alert(&#39;提交失败&#39;);
            }
        });
    }
  </script>
 
 
  <p>请选择预约时间：</p>
  
    

2015-05-28:

    

       00:00        01:00        02:00        03:00        04:00        05:00        06:00        07:00        08:00        09:00        10:00        11:00     

    

       12:00        13:00        14:00        15:00        16:00        17:00        18:00        19:00        20:00        21:00        22:00        23:00     

    

2015-05-29:

    

       00:00        01:00        02:00        03:00        04:00        05:00        06:00        07:00        08:00        09:00        10:00        11:00     

    

       12:00        13:00        14:00        15:00        16:00        17:00        18:00        19:00        20:00        21:00        22:00        23:00     

    

2015-05-30:

    

       00:00        01:00        02:00        03:00        04:00        05:00        06:00        07:00        08:00        09:00        10:00        11:00     

    

       12:00        13:00        14:00        15:00        16:00        17:00        18:00        19:00        20:00        21:00        22:00        23:00     

    

  
 

後端程式碼如下：

<?php $data = $_POST[&#39;timetable&#39;];
file_put_contents(&#39;timetable.log&#39;, json_encode($data));
header(&#39;content-type:applicaiton/json;charset=utf8&#39;);echo json_encode(array(&#39;success&#39;=>true));?>


例如要提交某個使用者的3每日預約數據，所有時段都預約（全選）
後端收到的請求數據如下：

["2015-05-28 00:00:00","2015-05-28 01:00:00","2015-05-28 02:00:00","2015-05-28 03:00:00","2015-05-28 04:00:00","2015-05-28 05:00:00","2015-05-28 06:00:00","2015-05-28 07:00:00","2015-05-28 08:00:00","2015-05-28 09:00:00","2015-05-28 10:00:00","2015-05-28 11:00:00","2015-05-28 12:00:00","2015-05-28 13:00:00","2015-05-28 14:00:00","2015-05-28 15:00:00","2015-05-28 16:00:00","2015-05-28 17:00:00","2015-05-28 18:00:00","2015-05-28 19:00:00","2015-05-28 20:00:00","2015-05-28 21:00:00","2015-05-28 22:00:00","2015-05-28 23:00:00","2015-05-29 00:00:00","2015-05-29 01:00:00","2015-05-29 02:00:00","2015-05-29 03:00:00","2015-05-29 04:00:00","2015-05-29 05:00:00","2015-05-29 06:00:00","2015-05-29 07:00:00","2015-05-29 08:00:00","2015-05-29 09:00:00","2015-05-29 10:00:00","2015-05-29 11:00:00","2015-05-29 12:00:00","2015-05-29 13:00:00","2015-05-29 14:00:00","2015-05-29 15:00:00","2015-05-29 16:00:00","2015-05-29 17:00:00","2015-05-29 18:00:00","2015-05-29 19:00:00","2015-05-29 20:00:00","2015-05-29 21:00:00","2015-05-29 22:00:00","2015-05-29 23:00:00","2015-05-30 00:00:00","2015-05-30 01:00:00","2015-05-30 02:00:00","2015-05-30 03:00:00","2015-05-30 04:00:00","2015-05-30 05:00:00","2015-05-30 06:00:00","2015-05-30 07:00:00","2015-05-30 08:00:00","2015-05-30 09:00:00","2015-05-30 10:00:00","2015-05-30 11:00:00","2015-05-30 12:00:00","2015-05-30 13:00:00","2015-05-30 14:00:00","2015-05-30 15:00:00","2015-05-30 16:00:00","2015-05-30 17:00:00","2015-05-30 18:00:00","2015-05-30 19:00:00","2015-05-30 20:00:00","2015-05-30 21:00:00","2015-05-30 22:00:00","2015-05-30 23:00:00"]

優化客戶端呼叫服務端介面減少請求資料容量

請求數據content- length:2879

使用這種方式請求資料容量比較大，影響回應時間。

改進方法1:把DateTime格式時間轉為時間戳再提交

#前端程式碼修改如下：修改javascript fsubmit方法

  <script type="text/javascript">
    function fsubmit(){
        var timetable = [];
        $("#myform input[type=checkbox]").each(function(){
            if(this.checked){                // 把时间转为时间戳
                var time = $(this).val();                var timestamp = Date.parse(new Date(time));
                timestamp = timestamp / 1000;

                timetable.push(timestamp);
            }
        });        if(timetable.length==0){
            alert(&#39;请选择预约时间&#39;);            return false;
        }

        $.post("http://localhost/server.php",{timetable:timetable}).done(function(data){
            if(data[&#39;success&#39;]==true){
                alert(&#39;提交成功&#39;);                
            }else{
                alert(&#39;提交失败&#39;);
            }
        });

    }  </script>

後端收到的請求資料如下：

["1432742400","1432746000","1432749600","1432753200","1432756800","1432760400","1432764000","1432767600","1432771200","1432774800","1432778400","1432782000","1432785600","1432789200","1432792800","1432796400","1432800000","1432803600","1432807200","1432810800","1432814400","1432818000","1432821600","1432825200","1432828800","1432832400","1432836000","1432839600","1432843200","1432846800","1432850400","1432854000","1432857600","1432861200","1432864800","1432868400","1432872000","1432879200","1432882800","1432886400","1432890000","1432893600","1432897200","1432900800","1432904400","1432908000","1432911600","1432915200","1432918800","1432922400","1432926000","1432929600","1432933200","1432936800","1432940400","1432944000","1432947600","1432951200","1432954800","1432958400","1432962000","1432965600","1432969200","1432972800","1432976400","1432980000","1432983600","1432987200","1432990800","1432994400","1432998000"]

優化客戶端呼叫服務端介面減少請求資料容量

請求資料content-length:1916

#後端收到後可把時間戳轉為datetime格式使用

#改進方法2:使用一個32位元的整數變量，把每一小時作為32位元整數的其中一位來儲存

時段與32位元整數的對應關係是
從右到左開始是00:00,01:00,02:00 ,03:00 以此類推，如果有選擇的時段則為1，否則為0

例如：需要預約2016-05-28的10:00,12:00,14:00 ,16:00,18:00

 0   0    0   0   0   0   0    0   0  0  0  0  0  1  0  1  0  1  0  1  0  1  0  0  0  0  0  0  0  0  0  0
忽略 忽略 忽略 忽略 忽略 忽略 忽略 忽略 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

則以32位元二進位表示為1010101010000000000 即10進位349184 ＝ 2的10次方2的12次方2的14次方2的16次方2的18次方
前端程式碼修改如下：修改javascript fsubmit方法

  <script type="text/javascript">
    function fsubmit(){
        var timetable = [];        var tmp = {};
        $("#myform input[type=checkbox]").each(function(){
            if(this.checked){                // 拆分日期与时间
                var datetime = $(this).val();                var datetime = datetime.split(&#39; &#39;);                var day = datetime[0];                var time = parseInt(datetime[1].substring(0,2));                // 创建日期与时间数组
                if(typeof(tmp[day])==&#39;undefined&#39;){
                    tmp[day] = [];
                }
                tmp[day].push(time);
            }
        });        // 合拼数据，转换格式
        for(day in tmp){            // 根据数据集合，合拼，创建10进制数据
            var time = tmp[day];            var timeint = 0;            for(var i=0; i<time.length; i++){
                timeint += Math.pow(2,time[i]);
            }

            timetable.push(day+&#39; &#39;+timeint);
        }        if(timetable.length==0){
            alert(&#39;请选择预约时间&#39;);            return false;
        }

        $.post("http://localhost/server.php",{timetable:timetable}).done(function(data){
            if(data[&#39;success&#39;]==true){
                alert(&#39;提交成功&#39;);
            }else{
                alert(&#39;提交失败&#39;);
            }
        });

    }  </script>

後端收到的請求資料如下：

["2015-05-28 16777215","2015-05-29 16777215","2015-05-30 16777215"]

優化客戶端呼叫服務端介面減少請求資料容量

請求資料content-length:107

##使用這種方法，一天不管選了多少個預約時段，都只會有一筆記錄，大量減少提交的資料大小。
後端把10進位轉換為時間的方法： 1.把10進位轉為2進制，並且反轉
2.迴圈判斷每一位，記錄值為1的
3.記錄保存

#程式碼如下：

<?php$datetime = &#39;2015-05-28 1398016&#39;;list($day, $time) = explode(&#39; &#39;, $datetime);$bintime = decbin($time);$bintime = strrev($bintime);$result = array();for($i=0,$len=strlen($bintime); $i<$len; $i++){    if(substr($bintime, $i, 1)==1){        $result[] = $day.&#39; &#39;.str_pad($i, 2, &#39;0&#39;, STR_PAD_LEFT).&#39;:00:00&#39;;
    }
}
print_r($result);?>

輸出：

Array(
    [0] => 2015-05-28 08:00:00
    [1] => 2015-05-28 10:00:00
    [2] => 2015-05-28 12:00:00
    [3] => 2015-05-28 14:00:00
    [4] => 2015-05-28 16:00:00
    [5] => 2015-05-28 18:00:00
    [6] => 2015-05-28 20:00:00)

總結：本文提供一個可以把大量資料轉換為小容量資料傳輸的方法，但需要加入更多的運算。因此實際開發中需根據實際需求來判斷是否適合用時間換空間，或是空間換時間的演算法。

本篇文章說明了優化客戶端呼叫服務端介面減少請求資料容量，更多相關內容請關注php中文網。

相關推薦：

mysql order by rand() 效率最佳化方法

php 取得開始日期與結束日期之間所有日期

php 從指定數字中取得隨機組合的方法

以上是優化客戶端呼叫服務端介面減少請求資料容量的詳細內容。更多資訊請關注PHP中文網其他相關文章！

陳述：
本文內容由網友自願投稿，版權歸原作者所有。本站不承擔相應的法律責任。如發現涉嫌抄襲或侵權的內容，請聯絡admin@php.cn
上一篇：php 取得開始日期與結束日期之間所有日期下一篇：php 取得開始日期與結束日期之間所有日期

相關文章

看更多