一）因此我的服务不再有效-->从我的角度来看，YQL不再可靠，我需要更换 /*/ Old code /*/ var site = "http://www.test.com/foo.html"; var yql = "select * from html

一）因此我的服务不再有效-->从我的角度来看，YQL不再可靠，我需要更换

/*/ Old code /*/

var site = "http://www.test.com/foo.html";

var yql = "select * from html where url='" + site + "' AND xpath='//div'";

var resturl = "https://query.yahooapis.com/v1/public/yql?q="
    + encodeURIComponent(yql) + "&format=json";

/*/ New code /*/

var site = "http://www.test.com/foo.html";

var yql = "select * from htmlstring where url='" + site + "' AND xpath='//div'";

var resturl = "https://query.yahooapis.com/v1/public/yql?q="
    + encodeURIComponent(yql) + "&format=json"
    + "&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys";

<?
    header('Access-Control-Allow-Origin: *'); //all
    $url = $_GET['url'];
    if (substr($url,0,25) != "https://www.xxxx.yy") {
       echo "Only https://www.xxxx.yy allowed!";
       return;
    }
    $xpathQuery = $_GET['xpath'];

    //need more hard check for security, I made only basic
   function check($target_url){
       $check = curl_init();
       //curl_setopt( $check, CURLOPT_HTTPHEADER, array("REMOTE_ADDR: $ip", "HTTP_X_FORWARDED_FOR: $ip"));
        //curl_setopt($check, CURLOPT_INTERFACE, "xxx.xxx.xxx.xxx");
        curl_setopt($check, CURLOPT_COOKIEJAR, 'cookiemon.txt');
        curl_setopt($check, CURLOPT_COOKIEFILE, 'cookiemon.txt');
        curl_setopt($check, CURLOPT_TIMEOUT, 40000);
        curl_setopt($check, CURLOPT_RETURNTRANSFER, TRUE);
        curl_setopt($check, CURLOPT_URL, $target_url);
        curl_setopt($check, CURLOPT_USERAGENT,   $_SERVER['HTTP_USER_AGENT']);
    curl_setopt($check, CURLOPT_FOLLOWLOCATION, false);
        $tmp = curl_exec ($check);
        curl_close ($check);
        return $tmp;
    } 

    // get html
    $html = check($url);
    $dom = new DOMDocument();
    @$dom->loadHTML($html);

    // apply xpath filter
    $xpath = new DOMXPath($dom);
    $elements = $xpath->query($xpathQuery);
    $temp_dom = new DOMDocument();
    foreach($elements as $n)   $temp_dom->appendChild($temp_dom->importNode($n,true));
    $renderedHtml = $temp_dom->saveHTML();

    // return html in json response
    // json structure: 
    // {html: "xxxx"}
    $post_data = array(
      'html' => $renderedHtml
    );  
    echo json_encode($post_data); 

?>

$.ajax({
    url: "url of service",
    dataType: "json", 
    data: { url: url,
            xpath: "//*"
          },
    type: 'GET',
    success: function() {
             },
    error: function(data) {
           }
}); 

select html from rss where url="http://w1.weather.gov/xml/current_obs/KFLL.rss"