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POOverlay in google maps
 

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    <p>I have a problem with overlays in google maps.</p> <p>the problem is iam using latitude and longitude from the database to display overlay but its not showing the overlay</p> <pre><code>&lt;%@page contentType="text/html" pageEncoding="UTF-8"%&gt; &lt;%@page import="java.sql.*" %&gt; &lt;% Connection connection = null; boolean foundResults = false; ResultSet set = null; Statement statement = null; String lat=null; String lng=null; %&gt; &lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;meta name="viewport" content="initial-scale=1.0, user-scalable=no"/&gt; &lt;meta http-equiv="content-type" content="text/html; charset=UTF-8"/&gt; &lt;title&gt;Google Maps JavaScript API v3 Example: Geocoding Simple&lt;/title&gt; &lt;link href="http://code.google.com/apis/maps/documentation/javascript/examples/standard.css" rel="stylesheet" type="text/css" /&gt; &lt;script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; var map; function initialize() { var myLatLng = new google.maps.LatLng(18.9, 72.8); var myOptions = { zoom: 11, center: myLatLng, mapTypeId: google.maps.MapTypeId.TERRAIN }; map = new google.maps.Map(document.getElementById("map_canvas"),myOptions); see(); } function see() { &lt;% int count=0; try { Class.forName("org.postgresql.Driver"); connection = DriverManager.getConnection("jdbc:postgresql://localhost:5432/postgres","postgres", "password"); statement = connection.createStatement(); set = statement.executeQuery("SELECT count(lat) from latng"); while(set.next()) { count = set.getInt(1); } } catch(Exception e) { } %&gt; var locations = new Array(&lt;%= count%&gt;); for(i = 0; i &lt; locations.length; i++) { locations[i] = new Array(&lt;%= count%&gt;); } &lt;% int i=0; try { Class.forName("org.postgresql.Driver"); connection = DriverManager.getConnection("jdbc:postgresql://localhost:5432/postgres","postgres", "password"); statement = connection.createStatement(); set = statement.executeQuery("SELECT lat, lng FROM latng"); while(set.next()) { lat=set.getString(1); lng=set.getString(2); %&gt; locations[&lt;%= i %&gt;][0]=&lt;%= lat%&gt;; locations[&lt;%= i %&gt;][1]=&lt;%= lng%&gt;; &lt;% i++; } %&gt; var i; var infowindow = new google.maps.InfoWindow(); var marker; for (i = 0; i &lt; locations.length; i++) { marker = new google.maps.Marker({position: new google.maps.LatLng(locations[i][0],locations[i][1]),map: map}); var flightPlanCoordinates=[new google.maps.LatLng(locations[i][0],locations[i][1])]; var flightPath = new google.maps.Polyline({ path: flightPlanCoordinates, strokeColor: "#FF0000", strokeOpacity: 1.0, strokeWeight: 2 }); flightPath.setMap(map); } &lt;% } catch(Exception e) { } %&gt; } &lt;/script&gt; &lt;/head&gt; &lt;body onload="initialize()"&gt; &lt;div id="map_canvas" style="width=100%; height:80%"&gt;&lt;/div&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>Thanks please some one help me...............</p>
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    1. COare you getting the data from the database correctly?
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    2. COThe code is not working with static values, I checked.
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    3. CO@M'vy when you say not working which part of it is not working? what does firebug or chrome developer tool says?
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