adminproducebean.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 AdminProduceBean extends DBConnection {

	// 声明实体
	private ProduceClass produceClass;

	private PreparedStatement ptst;

	private ResultSet rs;

	private Collection collection;


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

	// 设置实体对象
	public void setProduce(ProduceClass produceClass) {
		this.produceClass = produceClass;
	}

	// 增加
	public void addProduce() {
		String sql = "insert into produce(produceName) values(?);";
		try {
			ptst = con.prepareStatement(sql);
			ptst.setString(1, this.produceClass.getProduceName());
			ptst.executeUpdate();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	// 按姓名查询
	public Collection getProduceByProduceName(String produceName) {
		String sql = "select * from produce where produceName=?;";

		try {

			ptst = con.prepareStatement(sql);
			ptst.setString(1, produceName);
			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 produce where produceId=?;";

		try {

			ptst = con.prepareStatement(sql);
			ptst.setString(1, produceId);
			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;
	}
	
	//删除厂商
	public void deleteProduce(String produceId){
		String sql="delete from produce where produceId=?;";
		try {
			ptst = con.prepareStatement(sql);
			ptst.setString(1, produceId);
			ptst.executeUpdate();
			
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
	
	//获取所有厂商
	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;
	}
	

}