recorddao.java~8~

来自「我做的第一个java MIS项目」· JAVA~8~ 代码 · 共 44 行

package server.dao;

import java.sql.*;
import server.dao.Connectionmanager;
import server.entity.User;

public class Recorddao {

    private Connection con = null;
    private Connectionmanager cm=null;
    private PreparedStatement ps = null;
    private ResultSet rs = null;

    //增加一条借出记录
    public void cdout()
    {
        //初始化变量

        //创建一个连接并得到查询结果
        cm = new Connectionmanager();
        con = cm.getconnection();
        try {
            ps = con.prepareStatement("select * from [user] where username=''");
            rs = ps.executeQuery();
            while (rs.next()) {
            }
        } catch (SQLException ex) {
            return false;
        }
        //断开数据连接
        finally {
            cm.closeresultset(rs);
            cm.closestatement(ps);
            cm.closeconnection(con);
        }

        //判断并返回判断值
        //if (dbusername.equals(user.getusername())&& dbuserpwd.equals(user.getuserpwd()) )
        //{return true;}
        //else
        //{return false;}
    }
}