农业银行转账模拟器， 银行卡余额模拟器，jar最新逆向插件开源

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代码说明：

1. 采用Maven项目结构，包含完整的pom.xml配置3
2. 实现银行核心功能：开户、存款、取款、转账和交易记录查询12
3. 线程安全的账户操作设计，使用ConcurrentHashMap存储账户数据2
4. 模拟农业银行账号规则（622848开头）和初始余额随机生成2
5. 包含完整的交易流水记录功能，支持时间戳和余额追踪1
6. 通过maven-jar-plugin打包成可执行JAR文件3

使用说明：

1. 安装Maven后执行mvn clean package
2. 生成的JAR文件位于target目录
3. 运行java -jar agricultural-bank-simulator-1.0-SNAPSHOT.jar启动模拟器

package com.virtualbank.model;
import java.util.ArrayList;
import java.util.Date;
import java.text.SimpleDateFormat;

public class BankAccount {
    private String accountNumber;
    private String accountHolder;
    private double balance;
    private ArrayList<Transaction> transactions;
    private String bankName = "中国农业银行";
    private Date creationDate;
    private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    public BankAccount(String accountNumber, String accountHolder) {
        this.accountNumber = accountNumber;
        this.accountHolder = accountHolder;
        this.balance = 0.0;
        this.transactions = new ArrayList<>();
        this.creationDate = new Date();
    }

    public synchronized void deposit(double amount) {
        if (amount <= 0) throw new IllegalArgumentException("存款金额必须大于0");
        balance += amount;
        transactions.add(new Transaction("存款", amount, balance));
    }

    public synchronized void withdraw(double amount) {
        if (amount <= 0) throw new IllegalArgumentException("取款金额必须大于0");
        if (amount > balance) throw new IllegalArgumentException("余额不足");
        balance -= amount;
        transactions.add(new Transaction("取款", amount, balance));
    }

    public synchronized void transfer(BankAccount target, double amount) {
        if (target == null) throw new IllegalArgumentException("目标账户不能为空");
        this.withdraw(amount);
        target.deposit(amount);
        transactions.add(new Transaction(
            "转出至" + target.getAccountNumber(), 
            -amount, 
            balance
        ));
        target.transactions.add(new Transaction(
            "转入自" + this.accountNumber, 
            amount, 
            target.getBalance()
        ));
    }

    // Getters and toString
    public String getAccountInfo() {
        return String.format("农业银行账户[%s]\n户主: %s\n余额: ¥%.2f\n开户时间: %s",
                accountNumber, accountHolder, balance, sdf.format(creationDate));
    }
    // 其他getter方法...
}

package com.virtualbank.model; import java.util.Date; import java.text.SimpleDateFormat;

public class Transaction { private String type; private double amount; private double balanceAfter; private Date timestamp; private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

public Transaction(String type, double amount, double balanceAfter) {
    this.type = type;
    this.amount = amount;
    this.balanceAfter = balanceAfter;
    this.timestamp = new Date();
}

@Override
public String toString() {
    String symbol = amount >= 0 ? "+" : "";
    return String.format("[%s] %s %s¥%.2f 余额: ¥%.2f",
            sdf.format(timestamp), type, symbol, amount, balanceAfter);
}
// Getters...

}

package com.virtualbank.service; import com.virtualbank.model.; import java.util.; import java.util.concurrent.ConcurrentHashMap;

public class BankService { private final Map<String, BankAccount> accounts = new ConcurrentHashMap<>(); private final Random random = new Random();

public BankAccount createAccount(String holderName) {
    String accountNo = "622848" + String.format("%010d", random.nextInt(1000000000));
    BankAccount account = new BankAccount(accountNo, holderName);
    account.deposit(10000 + random.nextInt(90000)); // 初始余额1万-10万
    accounts.put(accountNo, account);
    return account;
}

public BankAccount getAccount(String accountNo) {
    return accounts.get(accountNo);
}

public List<Transaction> getTransactionHistory(String accountNo) {
    BankAccount account = accounts.get(accountNo);
    return account != null ? account.getTransactions() : Collections.emptyList();
}

public void transfer(String fromAccount, String toAccount, double amount) {
    BankAccount source = accounts.get(fromAccount);
    BankAccount target = accounts.get(toAccount);
    if (source == null || target == null) {
        throw new IllegalArgumentException("账户不存在");
    }
    source.transfer(target, amount);
}

}