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	完成支付通知的逻辑
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		| @@ -89,4 +89,35 @@ public class DateUtils { | ||||
|         return date.getTime() >= System.currentTimeMillis(); | ||||
|     } | ||||
|  | ||||
|     /** | ||||
|      * 计算当期时间相差的日期 | ||||
|      * | ||||
|      * @param field  日历字段.<br/>eg:Calendar.MONTH,Calendar.DAY_OF_MONTH,<br/>Calendar.HOUR_OF_DAY等. | ||||
|      * @param amount 相差的数值 | ||||
|      * @return 计算后的日志 | ||||
|      */ | ||||
|     public static Date addDate(int field, int amount) { | ||||
|         return addDate(null, field, amount); | ||||
|     } | ||||
|  | ||||
|     /** | ||||
|      * 计算当期时间相差的日期 | ||||
|      * | ||||
|      * @param date   设置时间 | ||||
|      * @param field  日历字段 例如说,{@link Calendar#DAY_OF_MONTH} 等 | ||||
|      * @param amount 相差的数值 | ||||
|      * @return 计算后的日志 | ||||
|      */ | ||||
|     public static Date addDate(Date date, int field, int amount) { | ||||
|         if (amount == 0) { | ||||
|             return date; | ||||
|         } | ||||
|         Calendar c = Calendar.getInstance(); | ||||
|         if (date != null) { | ||||
|             c.setTime(date); | ||||
|         } | ||||
|         c.add(field, amount); | ||||
|         return c.getTime(); | ||||
|     } | ||||
|  | ||||
| } | ||||
|   | ||||
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