managerserviceimpl.java

是Eclipse web开发从入门到精通的源码

package com.REP.ServiceImpl;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;

import com.REP.DAO.iface.IAccountDAO;
import com.REP.DAO.iface.IManagerDAO;
import com.REP.IService.IManagerService;
import com.REP.bean.Account;
import com.REP.bean.Manager;
import com.REP.excptions.AccountIsExistException;
import com.REP.excptions.AccountNotExistException;

public class ManagerServiceImpl implements IManagerService {
    //定义DAO对象
    public IAccountDAO accountdao  ;
    public IManagerDAO managerdao;
    
    public IAccountDAO getAccountdao() {
        return accountdao;
    }

    public void setAccountdao(IAccountDAO accountdao) {
        this.accountdao = accountdao;
    }
    //删除帐户
    public void delAccount(Account account) throws AccountNotExistException {
          if(account == null)throw new AccountNotExistException();
           accountdao.delete(account);
    }
    //以Account对象为参数修改帐户
    public void modifyAccount(Account account) throws AccountNotExistException {
        if(account==null)throw new AccountNotExistException();  
        accountdao.update(account);

    }
    ////以就餐帐户名称和帐户id为参数修改帐户
    public void modifyAccount(String repastCard ,String id) throws  AccountIsExistException {
        Account account = new Account();
        //根据帐户名称获得帐户对象
        account = accountdao.getAccountbyName(repastCard);
        //如果帐户不存在，则抛出异常
        if(!(account==null)) throw new AccountIsExistException();
        //如果帐户存在，对帐户的名称进行修改
        account = getAccountById(id);
        account.setLoginName(repastCard);
        accountdao.update(account);

    }
    //帐户充值
    public void fillAccount(Account account,String fee) throws AccountNotExistException {
        //如果帐户为空，则无法充值，抛出异常
        if(account==null)throw new AccountNotExistException();
        //如果帐户存在，获得帐户余额
        BigDecimal banlances = account.getBalance();
        Integer overDrawNub = account.getOverdrawNumber();
        //增加帐户余额
        banlances =banlances.add(new BigDecimal(fee));
        //如果帐户余额大于0则，将透支次数设为0
        if(banlances.compareTo(new BigDecimal("0"))>=0){
            overDrawNub = 0;
        }
        //更新帐户
        account.setBalance(banlances);
        account.setOverdrawNumber(overDrawNub);
        accountdao.update(account);
           
    }
    ////检查用户是否存在
    public Boolean checkUser(String username, String password) {
        Manager manager = managerdao.findUser(username,password);
        if(manager==null) return false;
        return true;
    }
    
    public void setManagerdao(IManagerDAO managerdao) {
        this.managerdao = managerdao;
    }
    //获得所有帐户
    public List findAllAccount(){
        List list = new ArrayList();
        list = accountdao.findAll();
        return list;
    }
    //根据帐户id获得帐户
    public Account getAccountById(String id){
        Account account = accountdao.get(Integer.valueOf(id));
        return account;
    }
}