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[英]How to move the marker in Google map when the latitude and longitude changes in webservices?
[英]How can I move a marker on Google Maps using latitude & longitude pair from MSExcel and refresh every 10 seconds
這是我的代碼:它正在從excel數據庫中檢索數據,我必須通過從excel逐個獲取一個坐標來移動標記。它實際上是用於公交車跟蹤的。我已經具有所有經度-緯度格式的坐標。 只是通過jsp檢索值,然后通過放置新標記將這些值一個一地放置在javascript中,我也想刪除舊標記。pls幫助
<%response.setIntHeader("Refresh", 5);
Connection conn=null;
Statement stmt=null;
String sql="";
ResultSet rs=null;
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
conn=DriverManager.getConnection("jdbc:odbc:kashimiraz","","");
stmt=conn.createStatement(
ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_UPDATABLE);
sql="select * from [Sheet1$]";
rs=stmt.executeQuery(sql);
rs.next();
String latitude =rs.getString("lat");
String longitude = rs.getString("lon");
String last = latitude;
String lastt= longitude;
rs.close();
stmt.close();
conn.close();
rs=null;
stmt=null;
conn=null; %>
<script type="text/javascript">
function initialize()
{
var value="<%=last%>";
var valuee="<%=lastt%>";
var myCenter=new google.maps.LatLng(value,valuee);
var mapProp = {
center:myCenter,
zoom:15,
mapTypeId:google.maps.MapTypeId.ROADMAP
};
var map=new google.maps.Map(document.getElementById("googleMap"),mapProp);
var marker=new google.maps.Marker({
position:myCenter,
});
marker.setMap(map);
var infowindow = new google.maps.InfoWindow({
content:"Bus# 57"
});
infowindow.open(map,marker);
}google.maps.event.addDomListener(window, 'load', initialize);
</script>
<div id="googleMap" style="width:1200px;height:500px;"></div>
</section>
</body></html>
我認為您的答案在這里: http : //www.w3schools.com/js/js_timing.asp
使用setInterval
示例: setInterval(function(){alert("Hello")},3000);
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