/*******************************************************************\*                                                                   **			   LightningBoard			    **                                                                   **          http://sourceforge.net/projects/lightningboard/          **			                                            **	            Copyright (c) 2002 Xiaobo Liu	            **                                                                   ***********************************************************************                        LICENSE INFORMATION                        **                                                                   **  LightningBoard is free software; you can redistribute it and/or  **  modify it under the terms of the GNU General Public License as   **  published by the Free Software Foundation; either version 2 of   **  the License, or any later version.                               **                                                                   **  We don't charge anything for the use of LightningBoard, we only  **  require you to keep the copyright present on your site and in    **  the source files.                                                **                                                                   **  LightningBoard is distributed in the hope that it will be useful,**  but without any warranty; without even the implied warranty of   **  merchantability or fitness for a particular purpose. See the GNU **  General Public License for more details.                         **                                                                   *\*******************************************************************/package liuxiaobo.lb.dao;import java.sql.*;import java.util.*;import liuxiaobo.db.*;import liuxiaobo.lb.*;import liuxiaobo.lb.bean.*;public class LoginDAO  {  private DBConnectionManager dbcm = DBConnectionManager.getInstance();  public LoginBean execute(String u_name)throws ActionException{    Connection connection=null;    try {      LoginBean loginBean=new LoginBean();      connection=dbcm.getConnection();      DBAccess dba=new DBAccess(connection);      String sql="SELECT u_id,u_password,u_email,u_address,u_sign FROM user WHERE u_name='"+u_name+"'";      ResultSet rs=dba.openSelect(sql);//check result      if (!rs.next())        return null;      rs.beforeFirst();      while (rs.next()){        loginBean.setU_id(rs.getString("u_id"));        loginBean.setU_name(u_name);        loginBean.setU_password(rs.getString("u_password"));        loginBean.setU_email(rs.getString("u_email"));        loginBean.setU_address(rs.getString("u_address"));        loginBean.setU_sign(rs.getString("u_sign"));      }      rs.close();      dba.closeSelect();      return loginBean;    } catch (Exception ex) {      throw new ActionException(ex);    }finally{      try {        dbcm.freeConnection(connection);      } catch (SQLException ex) {        //      }    }  }}