我已经使用googlemaps制作了一些GIS网页。但我遇到了一些麻烦。我必须显示大约1500 - 2500标记并且有onowindows onclick。 2天前，一切都很好，但是当我在infowindows中添加更多细节时（之前只有4个详细信息，如姓名，地址等，现在有9个详细信息），标记没有出现。我正在使用Json消息函数从数据库中获取值并显示在infowindows中。如果它是1450个标记，它可以正常工作，但是当标记不止于此时，标记不会显示在地图上。内存缓存或cookie问题？请帮忙。谢谢。我正在使用googlechrome，Postgre数据库，PHP和googlemaps api v3。
<?php
require ('config.php');
$rayon = $_POST['rayon'];
$cabang = $_POST['org_id'];
//echo "$rayon, $cabang, $rayonhasil";
$sql = "SELECT distinct org_id, cp_customer_site_use_id, customer_name, address, postal_code, city, cp_rayon_name, icon_rayon, attribute16, attribute17 FROM hasilgis";
$data = pg_query($sql);
$json = '{"enseval": {';
$json .= '"customer":[ ';
while($x = pg_fetch_array($data)){
$json .= '{';
$json .= '"id_customer":"'.$x['org_id'].'",
"id_photo":"'.$x['cp_customer_site_use_id'].'",
"postal_code":"'.$x['postal_code'].'",
"nama_customer":"'.htmlspecialchars($x['customer_name']).'",
"city":"'.htmlspecialchars($x['city']).'",
"address":"'.htmlspecialchars($x['address']).'",
"nama_rayon":"'.htmlspecialchars($x['cp_rayon_name']).'",
"icon":"'.$x['icon_rayon'].'",
"x":"'.$x['attribute16'].'",
"y":"'.$x['attribute17'].'"
},';
}
$json = substr($json,0,strlen($json)-1);
$json .= ']';
$json .= '}}';
echo $json;
?>
<script type="text/javascript">
function initialize(){
var peta;
var x = new Array();
var y = new Array();
var customer_name = new Array();
var cp_rayon_name = new Array();
var icon = new Array();
var photo = new Array();
var city = new Array();
var address = new Array();
var postal_code = new Array();
// posisi default peta saat diload
var lokasibaru = new google.maps.LatLng( -1.2653859,116.83119999999997);
var petaoption = {
zoom: 5,
center: lokasibaru,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
peta = new google.maps.Map(document.getElementById("map_canvas"),petaoption);
var infowindow = new google.maps.InfoWindow({
content: ''
});
// memanggil function untuk menampilkan koordinat
url = "json.php";
$.ajax({
url: url,
dataType: 'json',
cache: false,
success: function(msg){
for(i=0;i<msg.enseval.customer.length;i++){
x[i] = msg.enseval.customer[i].x;
y[i] = msg.enseval.customer[i].y;
customer_name[i] = msg.enseval.customer[i].nama_customer;
cp_rayon_name[i] = msg.enseval.customer[i].nama_rayon;
icon[i] = msg.enseval.customer[i].icon;
photo[i] = msg.enseval.customer[i].id_photo;
city[i] = msg.enseval.customer[i].city;
address[i] = msg.enseval.customer[i].address;
postal_code[i] = msg.enseval.customer[i].postal_code;
var point = new google.maps.LatLng(parseFloat(msg.enseval.customer[i].x),parseFloat(msg.enseval.customer[i].y));
var gambar_tanda = 'assets/images/'+msg.enseval.customer[i].icon+'.png';
var photo_cust = '<img src="assets/images/foto_cust/'+msg.enseval.customer[i].id_photo+'_1.jpg" style="width:200px;height:120px;"/>';
//var nm_cust = msg.enseval.customer[i].nama_customer;
//var nm_rayon = , msg.enseval.customer[i].nama_rayon;
var html = '<b>' + customer_name[i] + '</b><br/>'+city[i]+ ', '+address[i]+', '+postal_code[i]+'<br/>' + cp_rayon_name[i] + '<br/>' + photo_cust;
tanda = new google.maps.Marker({
position: point,
map: peta,
icon: gambar_tanda,
clickable: true
});
bindInfoWindow(tanda, peta, infowindow, html );
}
}
});
}
google.maps.event.addDomListener(window, 'load', initialize);
function bindInfoWindow(tanda, peta, infowindow, data) {
google.maps.event.addListener(tanda, 'click', function() {
infowindow.setContent(data);
infowindow.open(peta, tanda);
});
}
function reload(form){
var val=form.org_id.options[form.org_id.options.selectedIndex].value;
self.location='main_page.php?cabang=' + val ;
}
</script>
<!--[if IE]><script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script><![endif]-->
</head>
<body>
<div id="wrapper"><!-- #wrapper -->
<header><!-- header -->
<br><br><br>
<h1></h1>
</header><!-- end of header -->
<section id="main"><!-- #main content area -->
<div id="map_canvas" style=" align: left; width:1000px; height:500px"></div><br>
<?php require ('config.php');
@$cabang=$_GET['cabang'];
/*if(strlen($cabang) > 0 and !is_numeric($cabang)){
echo "Data Error";
exit;
}*/
$quer2=pg_query("SELECT DISTINCT orgid FROM epmgis order by orgid");
if(isset($cabang) and strlen($cabang)){
$quer=pg_query("SELECT DISTINCT nm_rayon FROM epmgis where orgid=$cabang order by nm_rayon");
}
else{$quer=pg_query("SELECT DISTINCT nm_rayon FROM epmgis order by nm_rayon"); }
echo"<table>";
echo"<tr>";
echo "<form method=post name=f1 action='proses_map.php'>";
echo " <td>Silahkan Pilih Kode Cabang </td><td>:</td><td><select name='org_id' onchange=\"reload(this.form)\"><option value=''></option>";
while($noticia2 = pg_fetch_array($quer2)) {
if($noticia2['orgid']==@$cabang){echo "<option selected value='$noticia2[orgid]'>$noticia2[orgid]</option>"."<BR>";}
else{echo "<option value='$noticia2[orgid]'>$noticia2[orgid]</option>";}
}
echo "</select></td></tr>";
echo"<br>";
echo "<tr><td>Silahkan Pilih Rayon</td><td>:</td><td><select name='rayon'><option value=''></option>";
while($noticia = pg_fetch_array($quer)) {
echo "<option value='$noticia[nm_rayon]'>$noticia[nm_rayon]</option>";
}
echo "</select></td></tr>";
echo "<tr><td><input type=submit value=Submit>";
echo "</form>";
echo"</td></tr>";
echo"</table>";
?>