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Home Backend Development PHP Tutorial 请教 寻找PHP采集大量网页高效可行的方法

请教 寻找PHP采集大量网页高效可行的方法

Jun 23, 2016 pm 01:50 PM
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想用PHP的CURL采集虾米网的音乐信息。
但是很慢,采集到50个左右的时候就会停掉,然后网页卡住,第二次运行的时候就无法采集,应该是根据IP识别后,不允许采集了吧,所以基本上采集数据非常慢。
请问这种大数据的采集应该怎么做?
也有可能是我代码的问题。
以下是部分代码。

$j=0;	//起始ID	$id = 200000;	//采集1000条	//保存采集的数据	$data = array();	while($j<1000){		$url = 'http://www.xiami.com/song/'.($id++);		$ch = curl_init();		$status = curl_getinfo($ch);		///$status['redirect_url'] ;// 跳转到的新地址		$header[]='Accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8';		$header[]='Accept-Encoding:gzip,deflate,sdch';		$header[]='Accept-Language:zh-CN,zh;q=0.8';		$header[]='Cache-Control:max-age=0';		$header[]='Connection:keep-alive';		$header[]='Cookie:_unsign_token=a35437bd35c221c09a0e6f564e17c225; __gads=ID=7fcc242f6fd63d77:T=1408774454:S=ALNI_Mae8MH6vL5z6q4NlGYzyqgD4jHeEg; bdshare_firstime=1408774454639; _xiamitoken=3541aab48832ba3ceb089de7f39b9b0f; pnm_cku822=211n%2BqZ9mgNqgJnCG0Zu8%2BzyLTPuc%2B7wbrff98%3D%7CnOiH84T3jPCG%2FIr%2BiPOG8lI%3D%7CneiHGXz6UeRW5k4rRCFXIkcoTdd7ym3fZdO2FrY%3D%7Cmu6b9JHlkuGa5pDqnOie5ZDkmeqb4ZTule6V7ZjjlOib7JrmkvdX%7Cm%2B%2BT%2FGIUew96DXsUYBd4HawbrTOXOVI4iyOLIYUqT%2B9P%7CmO6BH2wDcB9rHGsYdwRrH2gfbAN%2FDH8QZBNkF3gDeQqqCg%3D%3D%7Cme6d7oHyneiH84Twn%2BmR64TzUw%3D%3D; CNZZDATA921634=cnzz_eid%3D1437506062-1408774274-%26ntime%3D1408937320; CNZZDATA2629111=cnzz_eid%3D2021816723-1408774274-%26ntime%3D1408937320; isg=075E6FBDF77039CEB63A1BA239420244';		$header[]='Host:www.xiami.com';		$header[]='User-Agent:Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1653.0 Safari/537.36';		curl_setopt($ch, CURLOPT_URL, $url);	//要访问的地址		curl_setopt($ch, CURLOPT_HTTPHEADER, $header);	//设置http头		curl_setopt($ch, CURLOPT_HEADER, 0);	//显示返回的Header区域内容		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);	//获取的信息以文件流的形式返回		curl_setopt($ch, CURLOPT_TIMEOUT, 20);	//设置超时限制防止死循环		$content = curl_exec($ch);	//执行操作		$curl_errno = curl_errno($ch);		$curl_error = curl_error($ch);		curl_close($ch);	//关闭CURL会话		preg_match('/name="description"\s+content="《(.+)》演唱者(.+),所属专辑《(.+)》/', $content,$matches);		//如果歌曲名字为空,跳过		if(empty($matches[1]) || trim($matches[1]) == ''){			continue;		}				//匹配出的数据		$data[$id]['song'] = empty($matches[1])?' ':$matches[1];		$data[$id]['songer'] = empty($matches[2])?' ':$matches[2];		$data[$id]['album'] = empty($matches[3])?' ':$matches[3];				preg_match('/album\/(\d+)/', $content,$matches);		$data[$id]['albumId'] = empty($matches[1])?0:$matches[1];		preg_match('/\/artist\/(\d+)/', $content,$matches);		$data[$id]['songerId'] = empty($matches[1])?0:$matches[1];		//歌词<div class="lrc_main">		preg_match('/<div class="lrc_main">(.*)<\/div>/Us', $content,$matches);		$data[$id]['lrc'] =  empty($matches[1])?' ':addslashes($matches[1]);		//分享 分享<em>(3269)</em>		preg_match('/分享<em>\((\d+)\)<\/em>/Us', $content,$matches);		$data[$id]['share'] =  empty($matches[1]) ? 0:$matches[1];		//评论次数 <p class="wall_list_count"><span>920		preg_match('/<p class="wall_list_count"><span>(\d+)<\/span>/Us', $content,$matches);		$data[$id]['comment_count'] =  empty($matches[1])?0:$matches[1];		//入库操作		//print_r($data);		//_____________________________		$j++;		usleep(3000);	}
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回复讨论(解决方案)

亲,用snoopy类吧

亲用 Ruby 或者 Go 吧

开玩笑,就算你要跑好歹你也弄成命令行的模式跑呀....

应该是xiami.com服务器有限制,禁止采集吧

1,每个url请求只采10-20打,然后做个跳转在继续采集,这样也可以防止页面超时,如果你在虚机上运行,长时间点用cpu,进程可能会被kill.

2,每次url请求header中的user-agent,cookies,最好都能改一下。

3,如果还不行,用火车头试试吧!

4,如果火车也不行,那就放弃这个站吧!

把foreach拆分成循环执行同一页面。
第一次浏览器或者cronrab定时执行 http://localhost/caiji.php?num=1 每次完成后,$_GET['num']+1;curl 重复l执行同一脚本,当$_GET['num']==1000后,退出,不再执行curl。

if($_GET['num']){$url = 'http://www.xiami.com/song/'.$_GET['num'];//你的代码$_GET['num'])++;}if($_GET['num']<1001){        $ch = curl_init();	curl_setopt($ch, CURLOPT_URL,"http://localhost/caiji.php?num=".$_GET['num']));	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);	curl_setopt($ch, CURLOPT_CONNECTTIMEOUT ,2); 	curl_setopt($ch, CURLOPT_TIMEOUT ,2);	curl_exec($ch);	curl_close($ch);}else{   exit;}
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