producebean.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 ProduceBean extends DBConnection{
//	 声明实体
	private ProduceClass produceClass;

	private PreparedStatement ptst;

	private ResultSet rs;

	private Collection collection;



	public ProduceBean() throws ClassNotFoundException, SQLException {
		super();
		// TODO Auto-generated constructor stub
	}
	public Collection getAllProduce(){
		String sql="select * from produce";
		try {
			ptst=con.prepareStatement(sql);
			rs=ptst.executeQuery();
			collection=new ArrayList();
			while(rs.next()){
				produceClass=new ProduceClass();
				produceClass.setProduceId(rs.getString("produceId"));
				produceClass.setProduceName(rs.getString("produceName"));
				collection.add(produceClass);
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		return collection;
	}
	
	// 按ID查询厂商
	public Collection getProduceByProduceId(String produceId) {
		String sql = "select * from produceDetails where produceId=?;";
            ProduceDetailsClass pd=null;
		try {

			ptst = con.prepareStatement(sql);
			ptst.setString(1, produceId);
			rs = ptst.executeQuery();
			collection = new ArrayList();
			while (rs.next()) {
				pd = new ProduceDetailsClass();
				pd.setProduceId(rs.getString("produceId"));
			   pd.setProduceName(rs.getString("produceName"));
				pd.setGoodsId(rs.getString("goodsId"));
				pd.setSortId(rs.getString("sortId"));
				collection.add(pd);
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		return collection;
	}
}