날짜 랜덤 생성 기능 추가

src/main/java/externalsystem/testpool/RandomUtil.java

@@ -1,10 +1,15 @@
 package externalsystem.testpool;
 
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
 import java.util.Arrays;
 import java.util.Collections;
+import java.util.Date;
 import java.util.List;
 import java.util.Random;
 
+import org.egovframe.rte.fdl.string.EgovStringUtil;
+
 public class RandomUtil {
 
 	public static String randomHangulName() {
@@ -54,4 +59,55 @@ public class RandomUtil {
 
 		return front_digit +  middle.get(0) + back_digit;
 	}
+
+
+	public static String randomPhone() {
+		List<String> middle = Arrays.asList(
+			"1111", "5555", "7777"
+		);
+		Collections.shuffle(middle);
+
+		Random random = new Random();
+
+		String end_digit1 = Integer.toString(random.nextInt(99));
+		end_digit1 = EgovStringUtil.lPad(end_digit1, 2, '0');
+
+		String end_digit2 = Integer.toString(random.nextInt(99-11)+11);
+
+		return "010" + middle + end_digit1 + end_digit2;
+	}
+
+	public static String randomYmd(String startYmd, String endYmd) throws ParseException  {
+		SimpleDateFormat in_ymdFormat = new SimpleDateFormat("yyyyMMdd");
+		Date d1 = in_ymdFormat.parse(startYmd);
+		Date d2 = in_ymdFormat.parse(endYmd);
+
+		long d1Sec = d1.getTime();
+		long d2Sec = d2.getTime();
+
+		Random random = new Random();
+		long newDateLong = random.nextLong(d2Sec - d1Sec) + d1Sec;
+
+		SimpleDateFormat out_ymdFormat = new SimpleDateFormat("yyyy-MM-dd");
+		String newDate = out_ymdFormat.format(newDateLong);
+
+		return newDate;
+	}
+
+	public static String randomYmdhhmmss(String startYmdhhmmss, String endYmdhhmmss) throws ParseException  {
+		SimpleDateFormat in_ymdhmsFormat = new SimpleDateFormat("yyyyMMddHHmmss");
+		Date d1 = in_ymdhmsFormat.parse(startYmdhhmmss);
+		Date d2 = in_ymdhmsFormat.parse(endYmdhhmmss);
+
+		long d1Sec = d1.getTime();
+		long d2Sec = d2.getTime();
+
+		Random random = new Random();
+		long newDateLong = random.nextLong(d2Sec - d1Sec) + d1Sec;
+
+		SimpleDateFormat out_ymdhmsFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+		String newDate = out_ymdhmsFormat.format(newDateLong);
+
+		return newDate;
+	}
 }