UserModel.findByName = SELECT user_id, username, user_email, user_regdate, user_posts, deleted \
        FROM jforum_users \
        WHERE UPPER(u.username) \
        LIKE UPPER(?)

public List findByName(String input, boolean exactMatch)
	{
		List namesList = new ArrayList();

		PreparedStatement p = null;
		ResultSet rs = null;
		try {
			p = JForumExecutionContext.getConnection().prepareStatement(SystemGlobals.getSql("UserModel.findByName"));
			p.setString(1, exactMatch ? input : "%" + input + "%");

			rs = p.executeQuery();
			while (rs.next()) {
				User u = new User();

                              u.setId(rs.getInt("user_id"));
                              u.setUsername(rs.getString("username"));
                              u.setColor(rs.getString("group_color"));
                              u.setEmail(rs.getString("user_email"));
                              u.setRegistrationDate(new Date(rs.getTimestamp("user_regdate").getTime()));
                              u.setTotalPosts(rs.getInt("user_posts"));
                              u.setDeleted(rs.getInt("deleted"));

				namesList.add(u);
			}
			return namesList;
		}
		catch (SQLException e) {
			throw new DatabaseException(e);
		}
		finally {
			DbUtils.close(rs, p);
		}
	}

private void commonData()
	{			
		this.setTemplateName(TemplateKeys.USER_LIST);		
	}
        
public void search()
	{
		String search = this.request.getParameter("username");		
		
		if (search != null && !"".equals(search)) {
            List users;
			users = DataAccessDriver.getInstance().newUserDAO().findByName(search, false);
			
			this.commonData();
			
			this.context.put("users", users);
			this.context.put("search", search);
		}		
		else {
			this.list();
		}
	}

<table width="100%">        
        <tr>
		<td class="gen" align="center">
			<form id="formusersearch" action="${JForumContext.encodeURL("/jforum")}" accept-charset="${encoding}" method="post">
			<span class="gensmall">
			${I18n.getMessage("User.searchByUsername")}: 
			<input type="hidden" name="action" value="search" />
			<input type="hidden" name="module" value="${moduleName}" />

			<input type="text" name="username" value="${search?default("")}" />

			<input type="submit" value="${I18n.getMessage("ForumBase.search")}" class="mainoption"/>
			</form>
		</td>
	</tr>
        
</table>