deleteuser.java

help desk for hospitals/health care systems

import java.io.IOException;
import java.io.PrintStream;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class deleteuser extends HttpServlet
{

    public deleteuser()
    {
    }

    public void init(ServletConfig servletconfig)
        throws ServletException
    {
        super.init(servletconfig);
        try
        {
            System.out.println("inside try");
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con=DriverManager.getConnection("jdbc:odbc:ecare","ecare","ecare");
//Class.forName("oracle.jdbc.driver.OracleDriver");
  //con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:project","ecare","ecare");
  st=con.createStatement();
            System.out.println("statement is created");
        }
        catch(Exception exception)
        {
            System.out.println(exception);
        }
    }

    public void service(HttpServletRequest httpservletrequest, HttpServletResponse httpservletresponse)
        throws ServletException, IOException
    {
        String s = "";
        java.io.PrintWriter printwriter = httpservletresponse.getWriter();
        httpservletresponse.setContentType("text/html");
        System.out.println("before try");
        try
        {
            String s1 = httpservletrequest.getParameter("u");
            System.out.println("ucode is " + s1);
            int i = st.executeUpdate("delete from registration where user_id='" + s1 + "'");
            System.out.println("deleted:" + i);
            httpservletresponse.sendRedirect("./createuser");
        }
        catch(Exception exception)
        {
            System.out.println(exception);
        }
    }
Connection con;
Statement st;
    ResultSet rs;
}