在我的项目中，我有一些 javascript 来实现我的工作，但是当我启动页面时它没有占用，但是在重新加载页面后它正在工作。
这是代码：
<?php
require_once"session.php";
$slat =$_GET['slat'];
$slang =$_GET['slang'];
$elat =$_GET['elat'];
$elang =$_GET['elang'];
?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<?php require_once"header.php";?>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<title>Near My Location Contacts</title>
<script src="http://maps.google.com/maps/api/js?sensor=false"
type="text/javascript"></script>
<script type="text/javascript">
/* function refreshPage() {
alert('dfg');
window.location.href,
{
allowSamePageTransition : true,
transition : 'none',
showLoadMsg : false,
reloadPage : true
}
}
refreshPage();*/
//<![CDATA[
var directionsDisplay;
var directionsService = new google.maps.DirectionsService();
var map;
//var haight = new google.maps.LatLng(37.7699298, -122.4469157);
//var oceanBeach = new google.maps.LatLng(37.7683909618184, -122.51089453697205);
var haight = new google.maps.LatLng(<?php echo $slat;?>,<?php echo $slang;?>);
var oceanBeach = new google.maps.LatLng(<?php echo $elat;?>,<?php echo $elang;?>);
function initialize() {
directionsDisplay = new google.maps.DirectionsRenderer();
var mapOptions = {
zoom: 14,
mapTypeId: google.maps.MapTypeId.ROADMAP,
center: haight
}
map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
directionsDisplay.setMap(map);
directionsDisplay.setPanel(document.getElementById("directionsPanel"));
}
function calcRoute() {
var request = {
origin:haight,
destination:oceanBeach,
travelMode: google.maps.TravelMode.DRIVING,
unitSystem: google.maps.UnitSystem.METRIC
};
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
}
});
}
//]]>
</script>
</head>
<body style="margin:0px; padding:0px;" onload="initialize();calcRoute()">
<div data-role=page id=nmContacts >
<div data-role=header data-theme="e" >
<a href="geoMapGrid.php" data-icon="back" ><font size="2px">Back</font></a>
<h1 align="left"><font size="2px">Near My Contacts</font></h1>
</div>
<div data-role=content style="width:100%;height:100%;">
<div data-role=content id="map_canvas" style="width:95%; height:300px"></div>
<div id="directionsPanel" style="width:97%;height 100%"></div>
</div>
</body>
</html>
在上面我有body onload，它在刷新后第一次没有工作，只有它在工作。