Show results from the database to html tables?

Hi,
I am a PHP programmer and did a successful CMS program for a company. Now I have another project which is a web based system.
I basically know how to do it and finish it in PHP.. but I am trying to do it using J2EE.. I am trying to learn J2EE now since I have been programming
on J2SE for quite sometime..
I am trying to show the results from a MySQL database on a table on J2EE but I am having hard time doing that. I am trying to research online and reading books but with no luck I can't find any resources on how to do that..If you guys can lead me into a resource where I can read how to do it? or just give any ideas on how to do it correctly I'll try to read and learn I will very much appreciate it.. here's my coding please look at it. Thank you very much
I want to make it like this in a html table:
userid username activated task
1 alvin y delete(this will be a link to delete the user)
Right now this is what I was able to do so far:
Userid username activated task
1
alvin
y
Here are my codes... I am not even sure if I am doing it in the correct way...
User.java
mport java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
public class Users {
public List getUsers(){
List names = new ArrayList();
try{
Connection con = DBConnect.getConnection();
Statement stmt = con.createStatement();
String sql = "select * from users";
ResultSet rs = stmt.executeQuery(sql);
while(rs.next())
String userid = rs.getString("user_id");
String usernames = rs.getString("user_name");
String password= rs.getString("password");
String activated= rs.getString("activated");
names.add(userid);
names.add(usernames);
names.add(password);
names.add(activated);
catch(SQLException e)
System.out.print(e);
catch(Exception e)
System.out.print(e);
return names;
UserServlet.java
import java.io.IOException;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class UsersServ extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
Users be =new Users();
List result = be.getUsers();
request.setAttribute("user_results", result);
RequestDispatcher view = request.getRequestDispatcher("manage_users1.jsp");
view.forward(request, response);
manage_users1.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@page import = "java.util.*" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<%
List results = (List)request.getAttribute("user_results");
Iterator it = results.iterator();
out.print("<table border = 1>");
out.print("<th>");
out.print("userid");
out.print("</th>");
out.print("<th>");
out.print("username");;
out.print("</th>");
while(it.hasNext()){
out.print("<tr><td> " + it.next()+"</td></tr>");
out.print("</table>");
%>
</body>
</html>

I suggest:
1: you use this:
e.printStackTrace()
instead of this:
System.out.print(e);
so it will tell you what line it crashed on.
2: In the code below,here is how you mix coding html tags and java scriptlets
(you should never have to use out.print()):. In a later project, you can learn how to use JSTL
instead of java scriplets (I suggest using java scriptlets for now until you have more JSP experience).
FROM:
<html>
<%
//some java code goes here
out.print("<th>");
//some more java code goes here
out.print("<tr>");
%>
TO:
<html>
<% //some java code goes here%>
<th>
<%//some more java code goes here%>
<tr>
3: Put a lot of System.println() statements in your *.java classes to verify what its doing (you can learn how to use a debugger later).
4: I highly recommend reading a book on JSP/servlets cover to cover.
Here's a simple MVC design approach I previously posted:
http://forums.sun.com/thread.jspa?messageID=10786901

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Astraport2012 wrote:
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