沒有顯示我下面就如何使用谷歌地圖使用的PHP/MySQL這裏的教程:https://developers.google.com/maps/articles/phpsqlajax_v3谷歌地圖標記在資源管理器或Chrome
一切正常在Firefox,但標記無法在Chrome或顯示資源管理器。在Chrome控制檯我得到他以下錯誤:
遺漏的類型錯誤:無法讀取的特性 'documentElement' 空/地圖/ 35 (匿名函數)/地圖/ 35 request.onreadystatechange
這裏是我的代碼(完全一樣的教程):
<!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="http://maps.googleapis.com/maps/api/js?
key=AIzaSyAGdu4GFzdG3B203KSHApI5hA9HQmGKRrc&sensor=true">
</script>
<script type="text/javascript">
//<![CDATA[
var customIcons = {
restaurant: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_blue.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
},
bar: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
}
};
function load() {
var map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(47.6145, -122.3418),
zoom: 13,
mapTypeId: 'roadmap'
});
var infoWindow = new google.maps.InfoWindow;
// Change this depending on the name of your PHP file
downloadUrl("genxml.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,
shadow: icon.shadow
});
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>
<body onload="load()">
<div id="map" style="width: 500px; height: 300px"></div>
</body>
</html>
而這裏的輸出XML文件:
<?php
require("db.php");
// Start XML file, create parent node
$dom = new DOMDocument("1.0");
$node = $dom->createElement("markers");
$parnode = $dom->appendChild($node);
// Opens a connection to a MySQL server
$connection=mysql_connect ('maps', $username, $password);
if (!$connection) { die('Not connected : ' . mysql_error());}
// Set the active MySQL database
$db_selected = mysql_select_db($database, $connection);
if (!$db_selected) {
die ('Can\'t use db : ' . mysql_error());
}
// Select all the rows in the markers table
$query = "SELECT * FROM markers WHERE 1";
$result = mysql_query($query);
if (!$result) {
die('Invalid query: ' . mysql_error());
}
header("Content-type: text");
// Iterate through the rows, adding XML nodes for each
while (($row = mysql_fetch_assoc($result))!==false){
// ADD TO XML DOCUMENT NODE
$marker = $dom->createElement("marker");
$node->appendChild($marker);
$marker->setAttribute("name",$row['name']);
$marker->setAttribute("address", $row['address']);
$marker->setAttribute("lat", $row['lat']);
$marker->setAttribute("lng", $row['lng']);
$marker->setAttribute("type", $row['type']);
}
echo $dom->saveXML();
?>
任何幫助非常感謝!
感謝您爲我指出這一點。我已經做出了您所建議的更改。但是,它並沒有解決我的問題。仍然得到相同的錯誤。你有沒有工作腳本? – user1009453 2012-07-10 18:56:28
對不起,但我沒有你的腳本*的工作副本。但是,如果您想發佈一個鏈接到我們可以正確調試的鏈接。請注意,您收到的錯誤引用了行var markers = xml.documentElement.getElementsByTagName(「marker」);所以你的XML可能無法正確加載。 – Marcelo 2012-07-10 19:03:46
我想也許你hade嘗試過相同的教程(上面的鏈接),這就是爲什麼我問。這裏是使用上面發佈的腳本的實時站點:http://gjutveckling.se/maps/,這裏是xml輸出:http://gjutveckling.se/maps/genxml.php感謝您的幫助:) – user1009453 2012-07-10 20:51:06