懂javaBean的

懂javaBean的高手进
bean的源程序：
package   test;
import   java.sql.*;
public   class   Login
{
  String   users= " ";
  String   usertype= " ";
  String   password= " ";
  String   success= "false ",
  message= " ";
 
  public   Login()
  {
    try{Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver ");
      }
      catch(ClassNotFoundException   e){}
  }
  public   void   setuserType(String   No)
  {
    usertype=No;
    }
    public   String   getuserType()
    {
      return   usertype;
      }
  public   void   setUsers(String   name)
  {
    users=name;
  }
  public   String   getUsers()
  {
    return   users;
    }
  public   void   setPassword(String   number)
  {
    password=number;      
  }
 
  public   String   getPassword()
  {
    return   password;
    }
    public   String   getMessage()
    {
      Connection   con;
      Statement   sql;
      ResultSet   rs;
      try{
      con=DriverManager.getConnection( "jdbc:odbc:sun ", "sa ", " ");
      sql=con.createStatement();
      String   condition= "select   *   from   user   WHERE   users= "+ " ' "+users+ " ' ";
      rs=sql.executeQuery(condition);
      int   rowcount=0;
      String   ps= " ";
      String   bs= " ";
      while(rs.next())
      {
        rowcount++;
        users=rs.getString( "users ");
        ps=rs.getString( "password ");
        bs=rs.getString( "usertype ");
      }
      if((rowcount==1)&&(password.equals(ps))&&(usertype.equals(bs)))
      {
        message= "ok ";
        success= "ok ";
      }
      else
      {
        message= "输入的用户名或密码不正确 ";
        success= "false ";
      }
      con.close();
      return   message;
    }
    catch(SQLException   e)
      {
        message= "输入的用户名或密码不正确 ";
        success= "false ";
        return   message;
      }
    }
  }

<%@   page   import= "test.Login "%>
<jsp:useBean   id= "g "   class= "test.Login "   scope= "page ">

</jsp:useBean>
<jsp:setProperty   name= "g "   property= "passwrd "   value= "t "   />
<jsp:getProperty   name= "g "   property= "password "   />
能测试通过，而
<%@   page   import= "test.Login "%>
<jsp:useBean   id= "g "   class= "test.Login "   scope= "page ">
</jsp:useBean>
<jsp:setProperty   name= "g "   property= "usertype "   value= "t "   />
<jsp:getProperty   name= "g "   property= "usertype "   />
却报错
Cannot   find   any   information   on   property   'usertype '   in   a   bean   of   type   'test.Login '

[解决办法]
你的getter和setter方法不是用IDE自动生成的吧，注意大小写
public void setUserType(String No)
{
usertype=No;
}
public String getUserType()
{
return usertype;
}

[解决办法]
嗯，不对，按你的变量命名的话应该是setUsertype和getUsertype。