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megha singhal
i have to retrieve data from the database and want to store in a variable using rs.getString and that variable i have to use in dropdown in jsp page.
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April 4, 2012 at 11:47 AM
1)Bean.java:
package form;
import java.sql.*;
import java.util.*;
public class Bean {
public List dataList(){
ArrayList list=new ArrayList();
try{
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
Statement st=con.createStatement();
ResultSet rs=st.executeQuery("select * from data");
while(rs.next()){
list.add(rs.getString("name"));
}
}
catch(Exception e){}
return list;
}
}
2)BeanInServlet.java:
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class BeanInServlet extends HttpServlet{
protected void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException{
form.Bean p = new form.Bean();
List list=p.dataList();
req.setAttribute("data", list);
RequestDispatcher rd = req.getRequestDispatcher("/jsp/beandata.jsp");
rd.forward(req, res);
}
}
3)beandata.jsp:
<%@page language="java" import="java.util.*" %>
<html>
<body>
<select name="name">
<option value="Select">Select</option>
<%Iterator itr;%>
<% List data= (List)request.getAttribute("data");
for (itr=data.iterator(); itr.hasNext(); ){
%>
<option value="<%=itr.next()%>"><%=itr.next()%></option>
<%}%>
</select>
</body>
</html>
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