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Sudha Surendhiran
retrieve the value from database into dropdown list using JDBC SQL 2005
2 Answer(s) a year and 3 months ago
Posted in : SQL
2 Answer(s) a year and 3 months ago
Posted in : SQL
How to retrieve the value from database into dropdown list using JDBC & SQL 2005?
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March 14, 2012 at 12:35 PM
JSP Code:
Create table country(country_id,country) in database and try the following code:
<%@page import="java.sql.*"%>
<html>
<form name="form" method="post" >
<b>Select a country:</b> </td>
<select name="sel"><option value=""><---Select---></option>
<%
Class.forName("com.mysql.jdbc.Driver").newInstance();
String connectionURL = "jdbc:mysql://localhost:3306/test";;
Connection connection= DriverManager.getConnection(connectionURL, "root", "root");
PreparedStatement psmnt = connection.prepareStatement("select * from country ");
ResultSet results = psmnt.executeQuery();
while(results.next()){
String name = results.getString(2);
String id = results.getString(1);
%><option value="<%= name %>">
<% out.println(name); %>
</option>
<%} results.close(); psmnt.close(); %>
</select><br>
<input type="submit" value="Submit"/><br>
</form>
<%String option=request.getParameter("sel");
if(option==null){
}
else{%>
<input type="text" value="<%=option%>">
<%
}
%>
</html>
March 14, 2012 at 12:50 PM
Java Code:
import java.sql.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
class ComboExample {
ComboExample() {
JFrame f = new JFrame();
f.getContentPane().setLayout(null);
final JComboBox combo = new JComboBox();
try {
Class.forName("com.mysql.jdbc.Driver");
Connection connect = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root","root");
Statement st = connect.createStatement();
ResultSet rs = st.executeQuery("Select name from data");
while (rs.next()) {
combo.addItem(rs.getString("name"));
}
} catch (Exception ex) {
}
combo.setBounds(20, 50, 150, 20);
f.add(combo);
f.setSize(400, 200);
f.setVisible(true);
}
public static void main(String[] args) {
ComboExample c = new ComboExample();
}
}
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