check.java~1~

一个java+sql2000开发的网吧管理系统

package com.jbaptech.accp.netbar.client;

import java.sql.*;
/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2005</p>
 *
 * <p>Company: 北京阿博泰克北大青鸟信息技术有限公司</p>
 *
 * @author Michael Luo
 * @version 1.0
 */
public class Check {
  public Check() {
  }

  public int checkUserName(String UserName){
    try{
      Connection con = ConnectionManager.getConnection();
      String sql = "select * from Card where UserName ='"+UserName+"'";
      Statement s = con.createStatement();
      ResultSet rs = s.executeQuery(sql);
      while(!rs.next()){
        con.close();
        return 0;
      }

      con.close();
    }catch (SQLException ce){
      ce.printStackTrace();
    }
    return 1;
  }

  public int checkPassword(String Password){
    try{
     Connection con = ConnectionManager.getConnection();
     String sql = "select * from Card where Password ='"+Password+"'";
     Statement s = con.createStatement();
     ResultSet rs = s.executeQuery(sql);
     while(!rs.next()){
       con.close();
       return 0;
     }

     con.close();
   }catch (SQLException ce){
     ce.printStackTrace();
   }
   return 1;

  }


}