loginbean.java

登录页面保护(通过jsp调用servlet实现页面保护

package com;
import java.sql.*;

public class LoginBean
{
  private ResultSet rs;
  private JdbcLogin jdbc=new JdbcLogin();
  public boolean selectDenglu(String username,String password)
  {
    int ok=0;
          boolean Jiegou;
    try{
            jdbc.openJdbc();
            String sql="select * from login where name='"+username+"' and pass='"+password+"'";
            rs=jdbc.selectJdbc(sql);
            if(rs.next())
            {
              ok=1;
            }
            jdbc.closeJdbc();
    }catch(Exception e)
    {
      System.out.println(e.getMessage());
    }
        if(ok==1)
        {
         return Jiegou=true;
        }
        else
        {
         return Jiegou=false;
        }
  }
}