admincart.java

j2ee框架下的mvc模式的一个网上销售系统

package com.qrsx.buyflowers.beans;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;

public class AdminCart extends DBConnection {

	private PreparedStatement ptst = null;

	private Collection collection = null;

	private ResultSet rs = null;

	private OrdersClass order = null;

	public AdminCart() throws ClassNotFoundException, SQLException {
		super();
		// TODO Auto-generated constructor stub
	}

	// 增加订单
	public void addOrder(String orderName, String totalPrice) {
		String sql = "insert into orders(usersName,ordersPrice) values(?,?);";
		try {
			ptst = con.prepareStatement(sql);
			ptst.setString(1, orderName);
			ptst.setString(2, totalPrice);
			ptst.executeUpdate();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

	// 删除订单
	public void deleteOrder(String ordersId) {
		String sql = "delete from orders where ordersId=?;";
		try {
			ptst = con.prepareStatement(sql);
			ptst.setString(1, ordersId);
			ptst.executeUpdate();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	// 获取所有订单
	public Collection getOrders() {
		String sql = "select * from orders;";
		try {
			ptst = con.prepareStatement(sql);
			rs = ptst.executeQuery();
			collection = new ArrayList();
			while (rs.next()) {
				order = new OrdersClass();
				order.setOrdersId(rs.getString("ordersId"));
				order.setOrdersPrice(Float.parseFloat(rs
						.getString("ordersPrice")));
				order.setUsersName(rs.getString("usersName"));
				order.setOrdersDatetime(rs.getString("ordersDatetime"));
				collection.add(order);
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		return collection;
	}

	// 按订单号查询
	public Collection getOrdersByOrderId(String ordersId) {
		String sql = "select * from orders where ordersId=?";
		try {
			ptst = con.prepareStatement(sql);
			ptst.setString(1, ordersId);
			rs = ptst.executeQuery();
			collection = new ArrayList();
			while (rs.next()) {
				order = new OrdersClass();
				order.setOrdersId(rs.getString("ordersId"));
				order.setOrdersPrice(Float.parseFloat(rs
						.getString("ordersPrice")));
				order.setUsersName(rs.getString("usersName"));
				order.setOrdersDatetime(rs.getString("ordersDatetime"));
				collection.add(order);
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return collection;
	}
	
	// 按用户名查询
	public Collection getOrdersByUserName(String usersName){
		String sql="select * from orders where usersName=?;";
		try {
			ptst = con.prepareStatement(sql);
			ptst.setString(1, usersName);
			rs = ptst.executeQuery();
			collection = new ArrayList();
			while (rs.next()) {
				order = new OrdersClass();
				order.setOrdersId(rs.getString("ordersId"));
				order.setOrdersPrice(Float.parseFloat(rs
						.getString("ordersPrice")));
				order.setUsersName(rs.getString("usersName"));
				order.setOrdersDatetime(rs.getString("ordersDatetime"));
				collection.add(order);
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return collection;
		
	}
}