java 订单支付status逻辑

一、java实现订单支付status逻辑，主要是通过位运算实现的，例：

二、可设置常量来进行状态判断：

public static final Long ORDER2_DELETED = (1L); //已删除
public static final Long ORDER2_CANCELLED = (1L << 1); //已取消
public static final Long ORDER2_ALLPAID = (1L << 6); //完成支付
public static final Long ORDER2_REFUNDED = (1L << 7); //已退款
public static final Long ORDER2_CANCEL_BYCUSTOMER = (1L << 8); //商家发起取消订单
public static final Long ORDER2_CANCEL_BYMERCHANT = (1L << 9); //消费者发起取消订单
public static final Long ORDER2_EXPRESS_FILLED = (1L << 10); //发货信息已填写
public static final Long ORDER2_GOODS_SENT = (1L << 11); //已完成发货
public static final Long ORDER2_GOODS_RECEIVED = (1L << 12); //消费者确认收货
public static final Long ORDER2_ORDER_COMPLETED = (1L << 13); //订单已完成
public static final Long ORDER2_PAIED_BYWECHAT = (1L << 16); //通过微信支付
public static final Long ORDER2_PAIED_BYALI = (1L << 17); //通过支付宝支付

三、通过从数据库中查询status值，与常量进行位运算，获取订单状态，如：

（1）订单已删除：if ( status & ORDER2_DELETED  ==  ORDER2_DELETED)  { return "已删除";  }

（2）订单已取消：if ( status & ORDER2_CANCELLED == ORDER2_CANCELLED) { return "已取消"; }

（3）订单待收货：if ( (status & ORDER2_ALLPAID) == ORDER2_ALLPAID  &&  (status & ORDER2_GOODS_RECEIVED) != ORDER2_GOODS_RECEIVED) { return "待收货" ;}

（4）订单待付款：if ( (status  &  ORDER2_DELETED) != ORDER2_DELETED && (status & ORDER2_CANCELLED) != ORDER2_CANCELLED &&( status & ORDER2_ALLPAID) != ORDER2_ALLPAID ) { return "待付款" ;}

  (5) 订单已完成：if ((status & ORDER2_ORDER_COMPLETED ) == ORDER2_ORDER_COMPLETED ) { return "订单已完成"；}

四、订单状态对应的操作，可设常量辅助，如：

public static final Integer ORDERVO2_IMMEDIATE_PAY = 1;// 立即支付

public static final Integer ORDERVO2_GOODS_ORDER_CANCEL = (1 << 1); // 取消订单

public static final Integer ORDERVO2_BUY_AGAIN = (1 << 2); // 再次购买

public static final Integer ORDERVO2_ENSURE_TAKE_GODDS = (1 << 3); // 确认收货

（1）订单已删除：

（2）订单已取消：再次购买  { return  buttonController = ORDERVO2_BUY_AGAIN }

  (3)  订单待收货：确认收货，再次购买  { return buttonController = ORDERVO2_BUY_AGAIN | ORDERVO2_ENSURE_TAKE_GODDS }

  (4)  订单待付款：取消订单、立即支付  { return buttonController = ORDERVO2_IMMEDIATE_PAY |  ORDERVO2_GOODS_ORDER_CANCEL }

  (5)  订单已完成：再次购买  { return buttonController = ORDERVO2_BUY_AGAIN }

五、前台根据获取的  订单状态，buttonController 进行位运算，进行后续逻辑。