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How to implement thinkphp automatic collection

爱喝马黛茶的安东尼
爱喝马黛茶的安东尼Original
2019-08-22 09:46:164026browse

How to implement thinkphp automatic collection

thinkphp实现自动采集功能的三种方法:

方法一:QueryList

个人感觉比较好用,采集详情比较不错的选择,但是采集复杂一点的列表,不好用。具体使用:

How to implement thinkphp automatic collection

控制器示例:

public function index(){
    // 使用采集类
    // 使用手册 :http://www.php.cn/php/php-QueryList3-ThinkPHP.html
    import('Org.QL.QueryList');
    $url = "http://www.zyctd.com/gqqg/";
    $reg = array();
    $reg['title'] = array('.sulist_title','text');
    $reg['shuliang'] = array('.su_li1','html');
    $obj = new \QueryList($url,$reg);
    $data = $obj->jsonArr;
    // foreach($data as $v){
    //     echo "<br>".$v[&#39;title&#39;].&#39;___&#39;.$v[&#39;shuliang&#39;]."<br>";
    // }
    p($data);
}

相关推荐:《ThinkPHP教程

方法二:simple_html_dom

这个方法比较适合采集一点结构简单的页面,HTML标签的类名比较明确的页面,还不错。具体使用:

How to implement thinkphp automatic collection

控制器示例:

public function index(){
    // 参考文档:http://microphp.us/plugins/public/microphp_res/simple_html_dom/manual.htm#section_quickstart
    // 下载地址:https://github.com/samacs/simple_html_dom/edit/master/simple_html_dom.php
    // 使用方法:http://www.thinkphp.cn/topic/21635.html
    import("Org.Util.simple_html_dom", &#39;&#39;, &#39;.php&#39;);
    $html = file_get_html(&#39;http://www.zyctd.com/gqqg/&#39;);
    $ret = $html->find(&#39;.supply_list_box ul&#39;,0)->first_child();
    foreach($ret as $v){
        echo $v;
    };
}

方法三:获取页面HTMl,进行正则匹配采集

举例一个Demo:

采集一个页面:

http://www.zyctd.com/gqqg/

我要获取上面的四个信息:标题,数量,时间,跳转链接。

How to implement thinkphp automatic collection

获取这些信息,通过上面两种方法都采集不到,最后才选用的正则来采集。具体方法:

public function index(){
    $url = "http://www.zyctd.com/gqqg/";
    // http://www.zyctd.com/gqqg-p1.html
    $supplyDB = M(&#39;supply&#39;);    
    $urlList = array();
    $array = array();
    for($x=1; $x<=1; $x++) {
        array_push($urlList,"http://www.zyctd.com/gqqg-p".$x.".html");
    };        
    foreach($urlList as $v){
        $curPageList = $this->getInfo($v);
        array_push($array,$curPageList);
    };
    foreach($array as $v){
        foreach($v as $vv){
            //echo $vv[&#39;title&#39;]."__".$vv[&#39;weight&#39;]."__".$vv[&#39;time&#39;]."<br>";
            $data = array();
            $data[&#39;title&#39;] = $vv[&#39;title&#39;];
            $data[&#39;weight&#39;] = $vv[&#39;weight&#39;];
            $data[&#39;add_time&#39;] = $vv[&#39;add_time&#39;];
            $data[&#39;url&#39;] = $vv[&#39;url&#39;];
            //$res = $supplyDB->add($data);
            //echo $res;
            echo "<p><span style=&#39;display:inline-block; width:110px;&#39;>".$vv[&#39;title&#39;]."</span>
            <span style=&#39;display:inline-block; width:110px;&#39;>".$vv[&#39;weight&#39;]."</span>
            <span style=&#39;display:inline-block; width:110px;&#39;>".$vv[&#39;add_time&#39;]."</span>
            <span style=&#39;display:inline-block; width:110px;&#39;>".$vv[&#39;url&#39;]."</span></p>";
        }
    }
        // 获取信息
        //$curPageList = $this->getInfo($html);
        //p($curPageList);
}
private function getInfo($url){
    $html = $this->getHtml($url);
    $array = array();
    // 匹配所有的标题
    preg_match_all("#<divclass=\"sulist_title\"><i></i><span>(.*?)</span></div>#",$html,$matches);
    $all_title = $matches[1];
    preg_match_all("#<i>发布时间:</i><span>(.*?)</span>#",$html,$matches);
    // 匹配所有的发布时间
    $all_time = $matches[1];
    // 匹配所有的求购数量
    preg_match_all("#<i>求购数量:</i><span>(.*?)</span>#",$html,$matches);
    $all_weight = $matches[1];
    // 匹配跳转链接
    preg_match_all("#<atarget=\"_blank\"href=\"(.*?)\">#",$html,$matches);
    $all_url = $matches[1];
    // 组合
    foreach($all_title as $k => $v){
        $arr = array();
        $arr[&#39;title&#39;] = $v;
        $arr[&#39;weight&#39;] = $all_weight[$k];
        $arr[&#39;add_time&#39;] = $all_time[$k];
        $arr[&#39;url&#39;] = $all_url[$k];
        array_push($array,$arr);
    }
    return $array;
}
private function getHtml($url){
    $html = file_get_contents($url);
    $html = preg_replace("#\n#","",$html);
    $html = preg_replace("#\r#","",$html);
    $html = preg_replace("#\\s#","",$html);
    return $html;
}

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