在谷歌地图上标记XML文件中的数据

我想在谷歌地图上标记一些数据。我使用eclipse Java EE和xml文件在同一个工作区中;（workspace_jsp）。

XML 文件：

<csv_data>
<row>
<time>10:01:43</time>
<latitude>37.4805016667</latitude>
<longitude>126.952741667</longitude>
<pdistance>0.000555</pdistance>
<totaldistance>0.000555</totaldistance>
<sectionspray>3343.0</sectionspray>
</row>
<row>
<time>10:01:57</time>
<latitude>37.4807483333</latitude>
<longitude>126.952753333</longitude>
<pdistance>0.027396</pdistance>
<totaldistance>0.027951</totaldistance>
<sectionspray>3320.0</sectionspray>
</row>

我的代码是

<!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 src="https://maps.googleapis.com/maps/api/js?key=~~~~"
            type="text/javascript"></script>
    <script type="text/javascript">
    //<![CDATA[
    var customIcons = {
      restaurant: {
        icon: 'http://labs.google.com/ridefinder/images/mm_20_blue.png'
      },
      bar: {
        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(37.466285,126.948366),
                zoom: 10,
        mapTypeId: 'roadmap'
      });
      var infoWindow = new google.maps.InfoWindow;
      // Change this depending on the name of your PHP file
      downloadUrl("mark_info.xml", function(data) {
        var xml = data.responseXML;
        var markers = xml.documentElement.getElementsByTagName("/csv_data/row");
        for (var i = 0; i < markers.length; i++) {
          var time = markers[i].getAttribute("time");
          var ss = markers[i].getAttribute("sectionspray");
          var pd = markers[i].getAttribute("pdistance");
          var td = markers[i].getAttribute("totaldistance");
          var point = new google.maps.LatLng(
              parseFloat(markers[i].getAttribute("latitude")),
              parseFloat(markers[i].getAttribute("longitude")));
          var html = "<b>" + time + "</b> <br/>" + ss + pd + td;
          var icon = customIcons[pd] || {};
          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: 2500px; height: 1500px"></div>
      </body>
</html>

地图加载在浏览器（IE，CHrome）上，但标记和信息窗口。
出了什么问题，我该如何解决？请帮助我..

您的 xml

未格式化为 xml 属性。您无法使用 getAttribute 检索它。数据是 XML 元素的内容。我使用 geoxml3 中的nodeValue函数从元素中检索文本。要获取元素，您可以使用 getElementsByTagName ，它返回一个元素数组，如果只有一个，则为 [0]。

  var markers = xml.getElementsByTagName('row');
  for (var i = 0; i < markers.length; i++) {
    var time = nodeValue(markers[i].getElementsByTagName("time")[0]);
    var ss = nodeValue(markers[i].getElementsByTagName("sectionspray")[0]);
    var pd = nodeValue(markers[i].getElementsByTagName("pdistance")[0]);
    var td = nodeValue(markers[i].getElementsByTagName("totaldistance")[0]);
    var point = new google.maps.LatLng(
      parseFloat(nodeValue(markers[i].getElementsByTagName('latitude')[0])),
      parseFloat(nodeValue(markers[i].getElementsByTagName('longitude')[0])));
    var html = "<b>" + time + "</b> <br/>" + ss + pd + td;
    var icon = customIcons[pd] || {};
    var marker = new google.maps.Marker({
      map: map,
      position: point,
      icon: icon.icon
    });
    bindInfoWindow(marker, map, infoWindow, html);
  }

概念验证小提琴

代码片段：

var map;
var customIcons = {
  restaurant: {
    icon: 'http://labs.google.com/ridefinder/images/mm_20_blue.png'
  },
  bar: {
    icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png'
  }
};
function initialize() {
  map = new google.maps.Map(
    document.getElementById("map_canvas"), {
      center: new google.maps.LatLng(37.4419, -122.1419),
      zoom: 13,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    });
  var infoWindow = new google.maps.InfoWindow;
  var bounds = new google.maps.LatLngBounds();
  var xml = xmlParse(xmlData);
  var markers = xml.getElementsByTagName('row');
  for (var i = 0; i < markers.length; i++) {
    var time = nodeValue(markers[i].getElementsByTagName("time")[0]);
    var ss = nodeValue(markers[i].getElementsByTagName("sectionspray")[0]);
    var pd = nodeValue(markers[i].getElementsByTagName("pdistance")[0]);
    var td = nodeValue(markers[i].getElementsByTagName("totaldistance")[0]);
    var point = new google.maps.LatLng(
      parseFloat(nodeValue(markers[i].getElementsByTagName('latitude')[0])),
      parseFloat(nodeValue(markers[i].getElementsByTagName('longitude')[0])));
    console.log(point.toUrlValue(6));
    var html = "<b>" + time + "</b> <br/>" + ss + pd + td;
    var icon = customIcons[pd] || {};
    var marker = new google.maps.Marker({
      map: map,
      position: point,
      icon: icon.icon
    });
    bounds.extend(point);
    bindInfoWindow(marker, map, infoWindow, html);
  }
  map.fitBounds(bounds);
}
function bindInfoWindow(marker, map, infoWindow, html) {
  google.maps.event.addListener(marker, 'click', function() {
    infoWindow.setContent(html);
    infoWindow.open(map, marker);
  });
}
google.maps.event.addDomListener(window, "load", initialize);
function xmlParse(str) {
    if (typeof ActiveXObject != 'undefined' && typeof GetObject != 'undefined') {
      var doc = new ActiveXObject('Microsoft.XMLDOM');
      doc.loadXML(str);
      return doc;
    }
    if (typeof DOMParser != 'undefined') {
      return (new DOMParser()).parseFromString(str, 'text/xml');
    }
    return createElement('div', null);
  }
  /**
   * Extract the text value of a DOM node, with leading and trailing whitespace trimmed.
   *
   * @param {Element} node XML node/element.
   * @param {Any} delVal Default value if the node doesn't exist.
   * @return {String|Null}
   */
var nodeValue = function(node, defVal) {
  var retStr = "";
  if (!node) {
    return (typeof defVal === 'undefined' || defVal === null) ? null : defVal;
  }
  if (node.nodeType == 3 || node.nodeType == 4 || node.nodeType == 2) {
    retStr += node.nodeValue;
  } else if (node.nodeType == 1 || node.nodeType == 9 || node.nodeType == 11) {
    for (var i = 0; i < node.childNodes.length; ++i) {
      retStr += arguments.callee(node.childNodes[i]);
    }
  }
  return retStr;
}
var xmlData = '<csv_data><row><time>10:01:43</time><latitude>37.4805016667</latitude><longitude>126.952741667</longitude><pdistance>0.000555</pdistance><totaldistance>0.000555</totaldistance><sectionspray>3343.0</sectionspray></row><row><time>10:01:57</time><latitude>37.4807483333</latitude><longitude>126.952753333</longitude><pdistance>0.027396</pdistance><totaldistance>0.027951</totaldistance><sectionspray>3320.0</sectionspray></row>';

html,
body,
#map_canvas {
  height: 100%;
  width: 100%;
  margin: 0px;
  padding: 0px
}

<script src="https://maps.googleapis.com/maps/api/js"></script>
<div id="map_canvas"></div>

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