Goods:注册页面之后台数据验证

package cn.itcast.goods.user.dao;

import java.sql.SQLException;

import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.ScalarHandler;

import cn.itcast.jdbc.TxQueryRunner;

//用户模块持久层
public class UserDao {
private QueryRunner qr=new TxQueryRunner();

//校驗用戶名是否註冊
public boolean ajaxValidateLoginname(String loginname) throws SQLException{
String sql="select count(1) from t_user where loginname=?";

Number number=(Number) qr.query(sql, new ScalarHandler(),loginname);
System.out.println("userdao:ajaxloginname");
return number.intValue()==0;

}
//校驗email是否註冊
public boolean ajaxValidateEmail(String email) throws SQLException{
String sql="select count(1) from t_user where email=?";

Number number=(Number) qr.query(sql, new ScalarHandler(),email);
return number.intValue()==0;

}
}