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Wednesday, November 12, 2014

How to show place in Google map

How to show place in Google map
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1) Create a table "latandlon" in Mysql/Oracle/Sqlserver/DB2 in which you feel easy.

CREATE TABLE latandlon (
  id int(11) NOT NULL auto_increment,
  lat decimal(10,6) NOT NULL default '0.000000',
  lon decimal(10,6) NOT NULL default '0.000000',
  address varchar(255) NOT NULL default '',
  PRIMARY KEY  (id)
);


2) feed the listed below data.
----------------------------------------------------------
id,     lat,            lon,            address
----------------------------------------------------------
1    23.402800    78.454100    Madhya Pradesh
2    26.280000    80.210000    Kanpur
3    31.122027    77.111664    Himanchal Pradesh
4    22.533000    88.367000    Kolkata
5    28.350000    77.120000    Delhi
6    17.230000    78.290000    Hyderabad
----------------------------------------------------------


3) put youe google map key in the index.jsp.


 <%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%@ page import="java.sql.*" %>
<%
// How to show place in google map
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   <title>My JSP 'index.jsp' starting page</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">  
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
<script src="http://maps.google.com/maps?file=api&v=2&key=YOURKEYHERE" type="text/javascript">
</script>
<body>
<p><strong>locations in India</strong></p>
<div id="map" style="width: 800px; height: 600px"></div>

<script type="text/javascript">
//<![CDATA[
var map = new GMap2(document.getElementById("map"));
map.addControl(new GLargeMapControl());
map.addControl(new GMapTypeControl());
map.addControl(new GScaleControl());
map.setCenter(new GLatLng(23.402800, 78.454100), 5, G_NORMAL_MAP);
function createMarker(point, number)
{
var marker = new GMarker(point);
var html = number;
GEvent.addListener(marker, "click", function() {marker.openInfoWindowHtml(html);});
return marker;
};
<%
    String userName = "root";
    String password = "";
    String url = "jdbc:mysql://localhost:3306/test";
    try{
        String driver = "com.mysql.jdbc.Driver";
        Class.forName(driver).newInstance();
        Connection conn;
        conn = DriverManager.getConnection(url, "root","");
        Statement s = conn.createStatement ();
        s.executeQuery ("SELECT *from latandlon");
        ResultSet rs = s.getResultSet ();
        int count = 0;
        while (rs.next ()) {
            String lat = rs.getString ("lat");
            String lon = rs.getString ("lon");
            String address=rs.getString ("address");
            out.print("var point = new GLatLng("+lat+","+lon+");\n");
            out.print("var marker = createMarker(point, '"+address+"');\n");
            out.print("map.addOverlay(marker);\n");
            out.print("\n");
        }
        rs.close ();
        s.close ();
    }
    catch(Exception ee){
        System.out.println(ee.toString());  
    }
%>
//]]>
</script>
</body>
</html>

4) change the database connection string in the index.jsp page, coz I have used MySql.






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1 comment:

  1. I used this code work fine and useful in my project work

    ReplyDelete

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