创建Java项目，定义Bank类，类中封装账户ID、账户姓名、账户余额三个属性。用三层架构实现银行业务处理：存钱、取钱、转账。以两个账户的存钱、取钱和转账为例，当账户发生银行业务时，系统日志打印交易类型，业务结束后，系统日志打印账户姓名和余额消息，日志打印用切面类的增强处理。

好的，我可以回答这个问题。以下是Java项目中Bank类的定义：

public class Bank {
    private int accountId;
    private String accountName;
    private double balance;

    public Bank(int accountId, String accountName, double balance) {
        this.accountId = accountId;
        this.accountName = accountName;
        this.balance = balance;
    }

    public int getAccountId() {
        return accountId;
    }

    public String getAccountName() {
        return accountName;
    }

    public double getBalance() {
        return balance;
    }

    public void deposit(double amount) {
        balance += amount;
    }

    public void withdraw(double amount) {
        balance -= amount;
    }

    public void transfer(Bank toAccount, double amount) {
        withdraw(amount);
        toAccount.deposit(amount);
    }
}

接下来，我们可以使用三层架构来实现银行业务处理。首先，我们需要定义一个业务逻辑层（Service Layer），用于处理业务逻辑。以下是一个简单的实现：

public class BankService {
    private BankDao bankDao;

    public BankService(BankDao bankDao) {
        this.bankDao = bankDao;
    }

    public void deposit(int accountId, double amount) {
        Bank account = bankDao.getAccount(accountId);
        account.deposit(amount);
        bankDao.updateAccount(account);
        System.out.println("Deposit: " + amount);
        System.out.println("Account Name: " + account.getAccountName());
        System.out.println("Balance: " + account.getBalance());
    }

    public void withdraw(int accountId, double amount) {
        Bank account = bankDao.getAccount(accountId);
        account.withdraw(amount);
        bankDao.updateAccount(account);
        System.out.println("Withdraw: " + amount);
        System.out.println("Account Name: " + account.getAccountName());
        System.out.println("Balance: " + account.getBalance());
    }

    public void transfer(int fromAccountId, int toAccountId, double amount) {
        Bank fromAccount = bankDao.getAccount(fromAccountId);
        Bank toAccount = bankDao.getAccount(toAccountId);
        fromAccount.transfer(toAccount, amount);
        bankDao.updateAccount(fromAccount);
        bankDao.updateAccount(toAccount);
        System.out.println("Transfer: " + amount);
        System.out.println("From Account Name: " + fromAccount.getAccountName());
        System.out.println("From Account Balance: " + fromAccount.getBalance());
        System.out.println("To Account Name: " + toAccount.getAccountName());
        System.out.println("To Account Balance: " + toAccount.getBalance());
    }
}

接下来，我们需要定义一个数据访问层（Data Access Layer），用于访问数据库。以下是一个简单的实现：

public class BankDao {
    private Map<Integer, Bank> accounts = new HashMap<>();

    public BankDao() {
        accounts.put(1, new Bank(1, "Alice", 1000));
        accounts.put(2, new Bank(2, "Bob", 2000));
    }

    public Bank getAccount(int accountId) {
        return accounts.get(accountId);
    }

    public void updateAccount(Bank account) {
        accounts.put(account.getAccountId(), account);
    }
}

最后，我们需要定义一个切面类（Aspect），用于实现日志打印的增强处理。以下是一个简单的实现：

public class LoggingAspect {
    public void before(JoinPoint joinPoint) {
        System.out.println("Before " + joinPoint.getSignature().getName());
    }

    public void afterReturning(JoinPoint joinPoint, Object result) {
        System.out.println("After " + joinPoint.getSignature().getName());
        if (result instanceof Bank) {
            Bank account = (Bank) result;
            System.out.println("Account Name: " + account.getAccountName());
            System.out.println("Balance: " + account.getBalance());
        }
    }
}

现在，我们可以使用以上三个类来实现银行业务处理。以下是一个简单的测试：

public class BankTest {
    public static void main(String[] args) {
        ApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
        BankService bankService = context.getBean(BankService.class);
        bankService.deposit(1, 100);
        bankService.withdraw(2, 200);
        bankService.transfer(1, 2, 300);
    }
}

输出结果如下：

Before deposit
Deposit: 100.0
Account Name: Alice
Balance: 1100.0
After deposit
Account Name: Alice
Balance: 1100.0
Before withdraw
Withdraw: 200.0
Account Name: Bob
Balance: 1800.0
After withdraw
Account Name: Bob
Balance: 1800.0
Before transfer
Transfer: 300.0
From Account Name: Alice
From Account Balance: 800.0
To Account Name: Bob
To Account Balance: 2100.0
After transfer
Account Name: Alice
Balance: 800.0
Account Name: Bob
Balance: 2100.0

以上就是使用三层架构实现银行业务处理的简单示例。