来八八美团页面的防采集方法

[huerniu]

偶然在美团的页面上发现了防采集的做法，转过来给大家一起分析分析：

页面地址：http://hz.meituan.com/deal/15565584.html

在这个页面上找到显示商家地址的位置，如下：
胤隆汇 商家累积评分：4.8分1471人评价地址：江干区新塘路杭海路238号（森禾广场）查看地图公交/驾车去这里电话：[phone]

但是，如果在页面上点击右键查看源文件，可以看到对应的位置是：

<div id="J-biz-pos" data-poi="[{"shopid":566878,"name":"\u80e4\u9686\u6c47","address":"\u6c5f\u5e72\u533a\u65b0\u5858\u8def\u676d\u6d77\u8def238\u53f7\uff08\u68ee\u79be\u5e7f\u573a\uff09","range":"\u94b1\u6c5f\u65b0\u57ce","rangeid":5455,"disid":58,"disname":"\u6c5f\u5e72\u533a","dpshopid":0,"mapurl":"","trafficinfo":"","phone":"0571-86963688\/86963788","latlng":"[30.253548,120.206872]","city":50,"url":"","poiid":6307803,"poilevel":{"avgscore":"4.8","fbcount":1471},"cityname":"\u676d\u5dde","status":0,"subwayname":"","subwaydis":0,"subwayslug":"","appointmentDay":0}]" data-reservationPhoneNumber="" class="all-biz cf" data-uix="collapse" data-params="{lazyload:true, triggerEvent:'hover', group:'.biz-info', trigger:'.biz-info__title', openClass:'biz-info--open'}"></div>

由此可以看出商家的名称、地址、电话等内容是采用了json_encode()来处理，但为什么原文件里看到是加密的内容，而经过html解释道页面后有又显示为明文呢，是不是可以理解是php加密，js解密。这样页面直接被复制或抓取是无法直接读出明文的。

大牛们看看他具体是怎么实现的呢？

[xuzuning]

这与防采集无关，而与他用的 UI 有关 data-poi 的值是（url编码到达 js 时已还原）

[{"shopid":566878,"name":"\u80e4\u9686\u6c47","address":"\u6c5f\u5e72\u533a\u65b0\u5858\u8def\u676d\u6d77\u8def238\u53f7\uff08\u68ee\u79be\u5e7f\u573a\uff09","range":"\u94b1\u6c5f\u65b0\u57ce","rangeid":5455,"disid":58,"disname":"\u6c5f\u5e72\u533a","dpshopid":0,"mapurl":"","trafficinfo":"","phone":"0571-86963688\/86963788","latlng":"[30.253548,120.206872]","city":50,"url":"","poiid":6307803,"poilevel":{"avgscore":"4.8","fbcount":1471},"cityname":"\u676d\u5dde","status":0,"subwayname":"","subwaydis":0,"subwayslug":"","appointmentDay":0}]

json 解码后是

Array
(
    [0] => stdClass Object
        (
            [shopid] => 566878
            [name] => 胤隆汇
            [address] => 江干区新塘路杭海路238号（森禾广场）
            [range] => 钱江新城
            [rangeid] => 5455
            [disid] => 58
            [disname] => 江干区
            [dpshopid] => 0
            [mapurl] => 
            [trafficinfo] => 
            [phone] => 0571-86963688/86963788
            [latlng] => [30.253548,120.206872]
            [city] => 50
            [url] => 
            [poiid] => 6307803
            [poilevel] => stdClass Object
                (
                    [avgscore] => 4.8
                    [fbcount] => 1471
                )

            [cityname] => 杭州
            [status] => 0
            [subwayname] => 
            [subwaydis] => 0
            [subwayslug] => 
            [appointmentDay] => 0
        )

)

[猪崽儿0o0]

只是json后的一种数据格式，你可以在json解码转过来就可以了，然后页面时采用的ajax进行局部数据输出的，当你只是采集的时候无法获取到对应的文字内容很正常。

[huerniu]

再仔细分析了下他的页面代码，里面用JS调用的combo文件起到了解释的作用。这是YUI框架的原因啊