你作为Java后端工程师完成以下代码 骑手向平台发起提现申请： public boolean applyForWithdrawalWithdraw withdraw BigDecimal amount 平台向骑手支付提现金额：public boolean payWithdrawalToRiderWithdraw withdraw BigDecimal amount String acc

public class WithdrawalService {

public boolean applyForWithdrawal(Withdraw withdraw, BigDecimal amount) {
    // 骑手向平台发起提现申请的逻辑
    // ...
    return true; // 提交成功返回true，失败返回false
}

public boolean payWithdrawalToRider(Withdraw withdraw, BigDecimal amount, String accountNumber) {
    // 平台向骑手支付提现金额的逻辑
    boolean isSuccess = payToAccount(accountNumber, amount);
    if (isSuccess) {
        withdraw.setStatus(Status.SUCCESS);
        // 更新提现记录状态
        // ...
    } else {
        withdraw.setStatus(Status.FAIL);
        // 更新提现记录状态
        // ...
    }
    return isSuccess;
}

public boolean performWithdrawal(Withdraw withdraw, BigDecimal amount, String accountNumber) {
    // 骑手立即提现的逻辑
    boolean isSuccess = payToAccount(accountNumber, amount);
    if (isSuccess) {
        withdraw.setStatus(Status.SUCCESS);
        // 更新提现记录状态
        // ...
    } else {
        withdraw.setStatus(Status.FAIL);
        // 更新提现记录状态
        // ...
    }
    return isSuccess;
}

private boolean payToAccount(String accountNumber, BigDecimal amount) {
    // 调用支付接口的方法
    // ...
    return true; // 支付成功返回true，失败返回false
}

}