Adding a java class file in an another java class file - mysql

Question

I am doing a jsp project in which, I have a dbconn.java page in which database connection to MySQL database is created.
I want to call it in an another java page for getting the database connection.
I dont know how to include the page dbconn.java into my page. Please help.
I know its a simple question for you all, but I could not find the answer.
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ActionContext;
import java.util.*;
import java.util.Date;
import java.sql.*;
package com.act;
public class dbconn {
public String execute() throws Exception
{
Connection con=null;
Statement stmt1=null;
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/mydatabasename", "root", "password");
}
}
This is my dbconn.java page. Is this correct?

Answer 1

You need to return the Connection object from this utility class.
I rewrite your class with name ConnectionManager like this :
import java.sql.*;
public class ConnectionManager{
private Connection con = null;
public Connection getCon(){
try{
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydatabasename","root", "password");
}
catch(Exception e){
e.printStackTrace();
}
return con;
}
}
Now in your other classes, call this class like this whenever you need a db-connection:
Connection con = new ConnectionManager().getCon();
PreparedStatement st = con.prepareStatement("YOUR SQL QUERY");