java oop 第十二章宠物商店

DAO层
package cn.happy.dao;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

public class BaseDao {
	Connection con = null;
	PreparedStatement ps = null;
    public ResultSet rs=null;
	private static final String driver = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
	private static final String url = "jdbc:sqlserver://localhost:1433;DatabaseName=PetShop";
	private static final String username = "sa";
	private static final String pwd = "1";
	
	
	public Connection getCon()throws Exception{
		Class.forName(driver);
		if(con==null||con.isClosed()){
        con = DriverManager.getConnection(url, username, pwd);
		}
	return con;
	}
	
	
	
	
	//执行查询
	public ResultSet executeQuery(String sql,Object... obje) throws Exception{
		
		con=getCon();
		ps=con.prepareStatement(sql);
		for(int i=0;i

package cn.happy.dao;

import java.util.List;

import cn.happy.entity.Pet;
import cn.happy.entity.PetOwner;

public interface Petdao {
	public List select1() throws Exception;
	public List se1() throws Exception;
	public boolean up(int id) throws Exception;
	public List poselect(int id) throws Exception;
	public List  selectquan() throws Exception;
	Pet getPetById(int id) throws Exception;
	int buyPet(int petid,int ownerid) throws Exception;
    int sellPet(int storeid,int petid) throws Exception;
    public List getOwnerPet(int ownerid) throws Exception ;
}

package cn.happy.dao;

import java.util.List;

import cn.happy.entity.Pet;
import cn.happy.entity.PetOwner;

public interface PetOwnerdao {
	//显示宠物主人名称
	public List select2() throws Exception;
	public PetOwner DL(String name1) throws Exception;
	public boolean update1(int money,int id) throws Exception;
	public List getnamebyid()throws Exception;
	public int getIdByName(String name) throws Exception ;
	public int updateByName(int money,String name) throws Exception ;
	public int updateMoneyByName(int money, String name) throws Exception ;
}

package cn.happy.dao;

import java.util.List;

import cn.happy.entity.PetStore;

public interface PetStoredao {
 public List select3() throws Exception;
 public PetStore DL(String name1) throws Exception; 
 

}

package cn.happy.dao;

public interface Accountdao {
public boolean add(int id)throws Exception;
int addAccount(int dealtype,int petid,int ownerid) throws Exception;
int addSellAccount(int dealtype,int petid,int ownerid,int storeid) throws Exception;
}

DAO Impl
package cn.happy.Impl;

import cn.happy.dao.Accountdao;
import cn.happy.dao.BaseDao;

public  class AccountdaoImpl extends BaseDao implements Accountdao {

	@Override
	//添加一条台账信息
	//宠物主人登录购买的宠物
	public boolean add(int id) throws Exception {
		boolean flag=false;
		String sql="insert into Account values(?,?,?)";
		int count=this.execteUpdate(sql,id);
		if(count>0){
			flag=true;
		}
		return flag;
	}

	@Override
	public int addAccount(int dealtype, int petid, int ownerid)
			throws Exception {
		String sql="insert into account (DEAL_TYPE,pet_id,SELLER_ID)  values(?,?,?)";	
		Object[] objs={dealtype,petid,ownerid};
		int count = execteUpdate(sql, objs);
		return count;
	}

	@Override
	public int addSellAccount(int dealtype, int petid, int ownerid, int storeid)
			throws Exception {
		String sql="insert into account (DEAL_TYPE,pet_id,SELLER_ID,BUYER_ID)  values(?,?,?,?)";	
		Object[] objs={dealtype,petid,ownerid,storeid};
		int count = execteUpdate(sql, objs);
		return count;
	}
		
	}

package cn.happy.Impl;

import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;

import cn.happy.dao.BaseDao;
import cn.happy.dao.Petdao;
import cn.happy.entity.Account;
import cn.happy.entity.Pet;
import cn.happy.entity.PetOwner;


public class PetdaoImpl extends BaseDao implements Petdao {
	@Override
	//显示宠物表的所有信息
	public List select1() throws Exception {
		List list=new ArrayList();
		String sql="select * from Pet";
		ResultSet rs=this.executeQuery(sql);
		if(rs!=null){
			while(rs.next()){
				Pet pet=new Pet();
				pet.setName(rs.getString("name"));
				pet.setId(rs.getInt("id"));
			    list.add(pet);
			}
		}
		return list;
	}

	@Override
	//查询表的库存宠物
	public List se1() throws Exception {

		List list=new ArrayList();
		String sql="select a.id, a.name,a.typename,b.price from Pet a,Account b where a.id=b.pet_id";
		//String sql="select id,name,typename,price from Pet ";
		ResultSet rs=this.executeQuery(sql);
		if(rs!=null){
			while(rs.next()){	
				Pet owner=new Pet();
				owner.setId(rs.getInt("id"));
				owner.setName(rs.getString("name"));
				owner.setTypename(rs.getString("typename"));
				owner.getAccount().setPrice(rs.getInt("price"));
			    list.add(owner);
			}
		}
		return list;
	}
	
	@Override
	public List poselect(int id) throws Exception {
		List list=new ArrayList();
		String sql="select * from Pet where Owner_id=?";
		ResultSet rs=this.executeQuery(sql,id);
		if(rs!=null){
			while(rs.next()){	
				Pet pet=new Pet();
				pet.setId(rs.getInt("id"));
				pet.setName(rs.getString("name"));
				pet.setTypename(rs.getString("typename"));
			    list.add(pet);
			}
		}
		return list;
	}
	@Override
	public boolean up(int id) throws Exception {
		boolean flag=false;
		String sql="update Pet set Owner_id=?";
		int count=this.execteUpdate(sql,id);
		if(count>0){
			flag=true;
		}
		return flag;
	}

	@Override
	public Pet getPetById(int id) throws Exception {
		String sql="select name,typename from pet where id=?";
		Object[] objs={id};
		ResultSet rs = executeQuery(sql, objs);
		Pet pet=new Pet();
		if(rs.next()){
			pet.setName(rs.getString("name"));
			
			pet.setTypename(rs.getString("typename"));
			System.out.println("宠物名字叫:"+pet.getName()+"\t宠物类别是："+pet.getTypename());
		}
		return pet;
	}

	@Override
	public int buyPet(int petid, int ownerid) throws Exception {
		String sql="update pet set owner_id=? where id=?";		
		Object[] objs={ownerid,petid};
		int count = execteUpdate(sql, objs);		
		return count;
	}

	@Override
	public int sellPet(int storeid, int petid) throws Exception {
		String sql="update pet set owner_id=?,store_id=? where id=?";		
		Object[] objs={null,storeid,petid};
		int count = execteUpdate(sql, objs);		
		return count;
	}

	@Override
	public List selectquan() throws Exception {
		List list=new ArrayList();
		String sql="select id,name,typename from Pet a,Account b where a.id=b.pet_id";
		ResultSet rs=this.executeQuery(sql);
		if(rs!=null){
			while(rs.next()){	
				Pet owner=new Pet();
				owner.setId(rs.getInt("id"));
				owner.setName(rs.getString("name"));
				owner.setTypename(rs.getString("typename"));
				owner.getAccount().setPrice(rs.getInt("price"));
			    list.add(owner);
			}
		}
		return list;
	}

	@Override
	public List getOwnerPet(int ownerid) throws Exception {
		List list=new ArrayList();
		String sql="select pet.id,pet.name,typename from pet,petowner where pet.owner_id=petowner.id and petowner.id=?";
		Object[] objs={ownerid};
		ResultSet rs =executeQuery(sql,objs);
		if(rs!=null){
			while(rs.next()){
				Pet pet=new Pet();
				pet.setId(rs.getInt("id"));
				pet.setName(rs.getString("name"));
				pet.setTypename(rs.getString("typename"));			
				list.add(pet);
			}
		}
		return list;
	}
	
	
}

package cn.happy.Impl;

import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;

import cn.happy.dao.BaseDao;
import cn.happy.dao.PetStoredao;
import cn.happy.entity.Pet;
import cn.happy.entity.PetOwner;
import cn.happy.entity.PetStore;

public class PetStoredaoImpl extends BaseDao implements PetStoredao {

	@Override
	//显示宠物商店信息
	public List select3() throws Exception {
		List list=new ArrayList();
		String sql="select * from PetStore";
		ResultSet rs=this.executeQuery(sql);
		if(rs!=null){
			while(rs.next()){
				PetStore ps=new PetStore();
				ps.setName(rs.getString("name"));
				ps.setId(rs.getInt("id"));
			    list.add(ps);
			}
		}
		return list;
	}

//宠物商店登录
	@Override
	public PetStore DL(String name1) throws Exception {
		String sql="select * from PetStore where name=?";
		ResultSet rs=this.executeQuery(sql,name1);
		PetStore pse=null;
		if(rs!=null){
			if(rs.next()){	
				pse=new PetStore();
				pse.setName(rs.getString("name"));
				pse.setPassword(rs.getString("password"));
				pse.setBalance(rs.getInt("Balance"));
			   
			}
		}
		return pse;
	}


	
	
}

package cn.happy.Impl;

import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;

import cn.happy.dao.BaseDao;
import cn.happy.dao.PetOwnerdao;
import cn.happy.entity.Pet;
import cn.happy.entity.PetOwner;

public class PetOwnerdaoImpl extends BaseDao implements PetOwnerdao {

	@Override
	//显示主人表所有信息
	public List select2() throws Exception {
		List list=new ArrayList();
		String sql="select * from PetOwner";
		ResultSet rs=this.executeQuery(sql);
		if(rs!=null){
			while(rs.next()){	
				PetOwner owner=new PetOwner();
				owner.setName(rs.getString("name"));
				owner.setId(rs.getInt("id"));
				owner.setMoney(rs.getInt("money"));
			    list.add(owner);
			}
		}
		return list;
	}
//宠物主人登录
	@Override
	public PetOwner DL(String name1) throws Exception {
		String sql="select * from PetOwner where name=?";
		ResultSet rs=this.executeQuery(sql,name1);
		PetOwner por=null;
		if(rs!=null){
			if(rs.next()){	
				por=new PetOwner();
				por.setName(rs.getString("name"));
				por.setPassword(rs.getString("password"));
				por.setMoney(rs.getInt("money"));
			}
		}
		return por;
	}

	@Override
	public boolean update1(int money,int id) throws Exception {
		boolean flag=false;
		String sql="update PetOwner set money=? where id=?";
		int count=this.execteUpdate(sql,money,id);
		if(count>0){
			flag=true; 
		}
		return flag;
		
	}
	@Override
	public List getnamebyid() throws Exception {
		List list=new ArrayList();
		String sql="select * from PetOwner where name=?";
		ResultSet rs=this.executeQuery(sql);
		if(rs!=null){
			while(rs.next()){	
				PetOwner owner=new PetOwner();
				owner.setName(rs.getString("name"));
				owner.setId(rs.getInt("id"));
			    list.add(owner);
			}
		}
		return list;
	}
	@Override
	public int getIdByName(String name) throws Exception {
		String sql="select id from petowner where name=?";
		Object [] objs={name};
		ResultSet rs =executeQuery(sql,objs);
		PetOwner po=new PetOwner();
		if(rs.next()){
			po.setId(rs.getInt("id"));
		}
		return po.getId();
	}
	@Override
	public int updateByName(int money, String name) throws Exception {
		String sql="update petowner set money=? where name=?";
		Object [] objs={money,name};
		int count = execteUpdate(sql, objs);
		return count;
	}
	@Override
	public int updateMoneyByName(int money, String name) throws Exception {
		String sql="update petowner set money=? where name=?";
		Object [] objs={money,name};
		int count = execteUpdate(sql, objs);
		return count;
	}
}

service
package cn.happy.service;

import java.security.acl.Owner;
import java.util.List;
import java.util.Scanner;

import cn.happy.Impl.AccountdaoImpl;
import cn.happy.Impl.PetOwnerdaoImpl;
import cn.happy.Impl.PetStoredaoImpl;
import cn.happy.Impl.PetdaoImpl;
import cn.happy.dao.Accountdao;
import cn.happy.dao.PetOwnerdao;
import cn.happy.dao.PetStoredao;
import cn.happy.dao.Petdao;
import cn.happy.entity.Pet;
import cn.happy.entity.PetOwner;
import cn.happy.entity.PetStore;


public class Petservice {
Scanner input=new Scanner(System.in);
 Petdao pdao=new PetdaoImpl();
 PetOwnerdao odao=new PetOwnerdaoImpl();
 PetStoredao sdao=new PetStoredaoImpl();
 Accountdao adao=new AccountdaoImpl();
 PetOwner po=new PetOwner();
 PetStore ps=new PetStore();
	public void show() throws Exception{
		System.out.println("wonderland醒来，所有宠物从sqlserver中醒来");
		System.out.println("*********************************************************");
		List p1 = pdao.select1();
		System.out.println("序号\t宠物名称");
		for(Pet item:p1){
			System.out.print(item.getId()+"\t");
			System.out.println(item.getName());
		}
		System.out.println("所有宠物主人从sqlserver中醒来");
		System.out.println("***********************************************************");
		po=new PetOwner();
		List p2=odao.select2();
		System.out.println("序号\t主人姓名");
		for(PetOwner item1:p2){
			System.out.print(item1.getId()+"\t");
			System.out.println(item1.getName());
		}
		
		System.out.println("所有宠物商店从sqlserver中醒来");
		System.out.println("***********************************************************");
		List p3=sdao.select3();
		System.out.println("序号\t宠物商店名称");
		for(PetStore item2:p3){
			System.out.print(item2.getId()+"\t");
			System.out.println(item2.getName());
		}
		System.out.println("请选择输入登录模式，输入1为宠物主人登录，输入2位宠物商店登录。");
		int isLogin=input.nextInt();
		if(isLogin==1){
			//宠物主人登录
			System.out.println("请先登录，输入主人的姓名：");
			String name=input.next();	
			po=odao.DL(name);
			System.out.println("请输入密码:");
			String pwd = input.next();
			if(po!=null){
				if (pwd.equals(po.getPassword().trim())) {
				System.out.println("-------------恭喜您，登录成功-----------------");
				System.out.println("-----------------您的基本信息--------------------------");	
		         System.out.println("姓名："+po.getName());
		         System.out.println("元宝数："+po.getMoney());         	
			System.out.println("登录成功，您可以购买和卖出宠物，如果你想购买宠物请输入1，如果你想卖出宠物请输入2");
	 		System.out.println("1.购买宠物");
	 		System.out.println("2.卖出宠物");
	 		int t=input.nextInt();
	 		switch(t){
	 		case 1:
	 			System.out.println("------------------请输入选择要购买范围：只输入选择项序号----------------------------");
	 		   System.out.println("1.购买库存宠物");
	 		   System.out.println("2.购买新培育宠物");
	 		
	 		   int m=input.nextInt();
	 		   if(m==1){
	 				//主人购买宠物
	 			   System.out.println("----------------以下是库存列表----------------");
	 			   System.out.println("宠物序号\t宠物名称\t宠物类型\t       元宝数");
	 			List p11=pdao.se1();
	 			//循环遍历Pet 和account 表  
	 		   for(Pet item:p11){
	 			   System.out.println(item.getId()+"\t"+item.getName()+"\t"+item.getTypename()+" "+item.getAccount().getPrice());
	 		   }
	 		   System.out.println("----------------------请选择要购买哪一个宠物，并输出项的序号----------------");
	 		  int i=input.nextInt();//输入购买宠物的序号
	 		  //增加台账信息，并删除宠物表记录
	 		 int masid=getIdByName();
	 		 adao.addAccount(isLogin, i, masid);
	 		 buyPet(i, masid);
	 		 updateByName();
	 		  System.out.println("----------------------台账正确插入一天信息----------------------");
	 		  System.exit(0);
	 		   }else if(m==2){
	 			   
	 			   System.out.println("---------------以下是购买新培育的宠物-----------------");
	 			   System.out.println("宠物序号\t宠物名称\t宠物类型\t       元宝数");
	 			  List p11=pdao.se1();
		 			//循环遍历Pet 和account 表  
		 		   for(Pet item:p11){
		 			   System.out.println(item.getId()+"\t"+item.getName()+"\t"+item.getTypename()+" "+item.getAccount().getPrice());
		 		   }
	 		   }else{ 
	 			   System.out.println("序号选错了");
	 		   }
	 			break;
	 		case 2:

	 			//主人卖出宠
	 			System.out.println("--------------------我的宠物列表------------------------");
	 			System.out.println("序号\t宠物名称\t类型");
               
	 			int ownerid=getIdByName(); 
	 			getPetInfoList(ownerid);
	 			System.out.println("-----------请选择你要出售的宠物编号--------------------------");
	 			int i=input.nextInt();
	 			System.out.println("--------------------------您要卖出的宠物信息如下----------------------");
	 			getPetById(i);
	 			
	 			System.out.println("确认是否卖出，y代表卖出 ， n代表不卖");
	 			String sure=input.next();
	 	if(sure.equals("y")){ 
	 				
	 			System.out.println("------下面是现有的宠物商店，请你选择要卖给的商家序号-----------");
	 			System.out.println("序号\t宠物商店名称");
	 			List pse=sdao.select3();
	 			for(PetStore item3:pse){
	 				System.out.print(item3.getId()+"\t");
	 				System.out.println(item3.getName());
	 			}
	 			sdao.select3();
	 			int storeid=input.nextInt();
	 		
	 			pdao.sellPet(storeid, i);
	 			updateMoneyByName();
	 			
	 			adao.addSellAccount(t, i, ownerid, storeid);
	 			System.out.println("台账正确插入一条信息");
	 			}
	 			else if(sure.equals("n")){
	 				System.out.println("不卖就别进,一天天的");
	 				return ;
	 			}
	 			break;
	 		}
	 }else{
			System.out.println("登录失败！！！！！");
					}	
				}else{
					System.out.println("沒有這个用户");
			}
	}
		
		
		
		
		
		
		
	else if(isLogin==2){
			//宠物商店登录
			System.out.println("请先登录，请输入宠物商店名字");
			String name=input.next();
			 ps=sdao.DL(name);	
			System.out.println(ps.getPassword());
				System.out.println("请输入密码:");
				String pwd = input.next();
	
				if (ps!=null) {
					if(pwd.equals(ps.getPassword().trim())){
						System.out.println("-------------恭喜您，登录成功-----------------");
						  System.out.println("-----------------宠物商店的基本信息--------------------------");
							System.out.println("名字："+ps.getName());
							System.out.println("元宝数："+ps.getBalance());
							System.out.println("登录成功，您可以进行如下操作：");
		                	System.out.println("1.购买宠物");
			                System.out.println("2.卖出宠物");
			                System.out.println("3.培育宠物");
				            System.out.println("4.查询代售宠物");
					        System.out.println("5.查询商店结余");
						    System.out.println("6.查看商店账目");
						    System.out.println("7.开宠物商店");
							System.out.println("请根据需要执行的操作。请选择序号输入，退出请输入0");
		}else{
			System.out.println("密码错误，登录失败");
		                }
					
	}else{
				System.out.println("没有这个用户");
	                   }
			
	      }			

		
		
		
		
	}

	public int getIdByName() throws Exception{		
		int ownerid= odao.getIdByName(po.getName());
		return ownerid;
	}
	public void updateByName() throws Exception{	
		odao.updateByName(po.getMoney()-10, po.getName());
	}
	public void updateMoneyByName() throws Exception{	
		odao.updateByName(po.getMoney()+10, po.getName());
	}
	
	 public void addAccount(int dealtype,int petid,int ownerid) throws Exception{
				
		 adao.addAccount(dealtype,petid,ownerid);
	 }

	 public void addSellAccount(int dealtype,int petid,int ownerid,int storeid) throws Exception{
			
		 adao.addSellAccount(dealtype, petid, ownerid, storeid);
	 }
	
	 
	 public void getPetById(int id) throws Exception{	
			pdao.getPetById(id);	
		}
		public void buyPet(int petid,int ownerid) throws Exception{
			pdao.buyPet(petid, ownerid);
		}
		public void sellPet(int storeid,int petid) throws Exception {
			pdao.sellPet(storeid, petid);
		
		}
		
		public void getPetInfoList(int ownerid) throws Exception{		
			List petList=pdao.getOwnerPet(ownerid);
			for (Pet pet : petList) {
				System.out.print(pet.getId()+"\t"+pet.getName()+"\t"+pet.getTypename());
				System.out.println();
			
			}
		}
}