Warning: file_get_contents(/data/phpspider/zhask/data//catemap/9/javascript/402.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181

Warning: file_get_contents(/data/phpspider/zhask/data//catemap/2/jquery/84.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Javascript jquery正在更改服务器上的xml参数_Javascript_Jquery - Fatal编程技术网

Javascript jquery正在更改服务器上的xml参数

Javascript jquery正在更改服务器上的xml参数,javascript,jquery,Javascript,Jquery,我被要求组装一个圣诞老人跟踪器。。。到周四:)到目前为止,我发现的是一个GoogleMapAPI,它可以基于MYSQL数据库在地图上绘制标记。它正在工作,并且完成了任务。它所做的可以把所有的计划点放在地图上 我想知道用JQuery逐个更改标记是否容易。因此,当圣诞老人经过一个地点时,标记就会改变 有人能帮我做这件事吗?基本上,前后参数需要稍加延迟地更改 提前感谢那些好人 <!DOCTYPE html > <head> <meta name="viewpo

我被要求组装一个圣诞老人跟踪器。。。到周四:)到目前为止,我发现的是一个GoogleMapAPI,它可以基于MYSQL数据库在地图上绘制标记。它正在工作,并且完成了任务。它所做的可以把所有的计划点放在地图上

我想知道用JQuery逐个更改标记是否容易。因此,当圣诞老人经过一个地点时,标记就会改变

有人能帮我做这件事吗?基本上,前后参数需要稍加延迟地更改

提前感谢那些好人

<!DOCTYPE html >
  <head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
    <title>PHP/MySQL & Google Maps Example</title>
    <script type="text/javascript" src="https://maps.googleapis.com/maps/api/js"></script>
    <script type="text/javascript">
    //<![CDATA[

    var customIcons = {
      after: {
        icon: 'http://localhost/google/santa.png'
      },
      before: {
        icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png'
      }
    };

    function load() {
      var map = new google.maps.Map(document.getElementById("map"), {
        center: new google.maps.LatLng(31.57185, -0.20962),
        zoom: 12,
        mapTypeId: 'roadmap'
      });
      var infoWindow = new google.maps.InfoWindow;

      // Change this depending on the name of your PHP file
      downloadUrl("map.php", function(data) {
        var xml = data.responseXML;
        var markers = xml.documentElement.getElementsByTagName("marker");
        for (var i = 0; i < markers.length; i++) {
          var name = markers[i].getAttribute("name");
          var address = markers[i].getAttribute("address");
          var type = markers[i].getAttribute("type");
          var point = new google.maps.LatLng(
              parseFloat(markers[i].getAttribute("lat")),
              parseFloat(markers[i].getAttribute("lng")));
          var html = "<b>" + name + "</b> <br/>" + address;
          var icon = customIcons[type] || {};
          var marker = new google.maps.Marker({
            map: map,
            position: point,
            icon: icon.icon
          });
          bindInfoWindow(marker, map, infoWindow, html);
        }
      });
    }

    function bindInfoWindow(marker, map, infoWindow, html) {
      google.maps.event.addListener(marker, 'click', function() {
        infoWindow.setContent(html);
        infoWindow.open(map, marker);
      });
    }

    function downloadUrl(url, callback) {
      var request = window.ActiveXObject ?
          new ActiveXObject('Microsoft.XMLHTTP') :
          new XMLHttpRequest;

      request.onreadystatechange = function() {
        if (request.readyState == 4) {
          request.onreadystatechange = doNothing;
          callback(request, request.status);
        }
      };

      request.open('GET', url, true);
      request.send(null);
    }

    function doNothing() {}

    //]]>

  </script>

  </head>

  <body onload="load()">
    <div id="map" style="width: 1024px; height: 786px"></div>
  </body>

</html>

PHP/MySQL和googlemaps示例
//

我过去所做的是使用xml并设置一个标志VISISTED=yes,然后拉取下一条记录。您还可以实现一个计时器,每隔30分钟检查一次xml,并更新地图

这样您就可以设置“lat”和“lng”变量