获取当前日期小方法（可用于日期校验）

常用的获取当前日期的方法，在日期校验时很有用：

 1 //Get Current Date Method for EntryDate Check
 2     public static String getCurrentDate() {
 3
 4         long millsecs = System.currentTimeMillis();
 5         long secs = millsecs / 1000;
 6         long mins = secs / 60;
 7         int hours = (int)(mins / 60);
 8         int days = hours / 24;
 9         int fourYears = days / 1461;
10         int elseDays = days % 1461;
11         int elseYears = elseDays / 365;
12         int remainDays = elseDays % 365 + 1;
13         int year = fourYears * 4 + elseYears + 1970;
14
15         int month = 1;
16         int wholeMonthDays = 0;
17         int monthCount = 0;
18         for(;wholeMonthDays < remainDays;month++) {
19             wholeMonthDays += getMonthDays(year, month);
20             monthCount++;
21         }
22         wholeMonthDays -= getMonthDays(year, --month);
23         int lastDays = remainDays - wholeMonthDays;
24
25         String currentDate = String.format("%d-%d-%d", year , monthCount , lastDays);
26         return currentDate;
27     }
28     public static int getMonthDays(int year , int month) {
29         int monthdays = 0;
30         switch (month) {
31         case 1:
32         case 3:
33         case 5:
34         case 7:
35         case 8:            case 10:
36         case 12:
37             monthdays = 31;
38         break;
39         case 4:
40         case 6:
41         case 9:
42         case 11:
43             monthdays = 30;
44             break;
45         case 2:
46             if(year / 4 == 0)
47                 monthdays = 29;
48             else
49                 monthdays = 28;
50             break;
51         }
52         return monthdays;
53     }