添加dateutil

Author: xqs

src/main/java/com/devil/utils/CommUtil.java

@@ -48,9 +48,9 @@ public static boolean isEmpty(Object o) {
 		return false;
 	}
 
-	public static boolean isSubClass(Class<?> clz, Class<?> subClz) {
+	public static boolean isSubClass(Class<?> clz, Class<?> supperClz) {
 		try {
-			clz.asSubclass(subClz);
+			clz.asSubclass(supperClz);
 			return true;
 		} catch (ClassCastException e) {
 			return false;

src/main/java/com/devil/utils/DateUtil.java

@@ -0,0 +1,38 @@
+package com.devil.utils;
+
+import java.util.Calendar;
+import java.util.Date;
+
+public class DateUtil {
+	private static final long ADAY = 24 * 60 * 60 * 1000;
+
+	public static int getDate(Date d) {
+		Calendar cld = Calendar.getInstance();
+		cld.setTime(d);
+		return cld.get(Calendar.DAY_OF_MONTH);
+	}
+
+	public static Date getDateStart(Date d) {
+		Calendar cld = Calendar.getInstance();
+		cld.setTime(d);
+		cld.set(Calendar.HOUR_OF_DAY, 0);
+		cld.set(Calendar.MINUTE, 0);
+		cld.set(Calendar.SECOND, 0);
+		cld.set(Calendar.MILLISECOND, 0);
+		return cld.getTime();
+	}
+
+	public static boolean sameDay(Date d1, Date d2) {
+		return d1.getTime() / ADAY == d2.getTime() / ADAY;
+	}
+
+	public static boolean sameMonth(Date d1, Date d2) {
+		Calendar cld = Calendar.getInstance();
+		cld.setTime(d1);
+		Calendar cld2 = Calendar.getInstance();
+		cld2.setTime(d2);
+		boolean yeareq = cld.get(Calendar.YEAR) == cld2.get(Calendar.YEAR);
+		boolean montheq = cld.get(Calendar.MONTH) == cld2.get(Calendar.MONTH);
+		return montheq && yeareq;
+	}
+}