diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ac5ef3f3..d0c81ae0b 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,8 @@
 * 【core  】      改进XmlUtil.xmlToBean，支持xml转bean时父节点忽略大小写
 * 【core  】      优化ArrayUtil的空判断（pr#2969@Github）
 * 【extra 】      优化SpringUtil在非Spring环境下的异常（issue#2835@Github）
+* 【core  】      StrUtil增加commonPrefix和commonSuffix方法（pr#3007@Github）
+* 【core  】      NumberUtil增加重载parseXXX方法, 解析失败返回默认值（pr#3007@Github）
 
 ### 🐞Bug修复
 * 【crypto】      修复NoSuchMethodError未捕获问题（issue#2966@Github）
diff --git a/hutool-core/src/main/java/cn/hutool/core/text/CharSequenceUtil.java b/hutool-core/src/main/java/cn/hutool/core/text/CharSequenceUtil.java
index 107476613..51d980afd 100755
--- a/hutool-core/src/main/java/cn/hutool/core/text/CharSequenceUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/text/CharSequenceUtil.java
@@ -2142,9 +2142,9 @@ public class CharSequenceUtil {
 	 */
 	public static String subWithLength(String input, int fromIndex, int length) {
 		final int toIndex;
-		if(fromIndex < 0){
+		if (fromIndex < 0) {
 			toIndex = fromIndex - length;
-		}else{
+		} else {
 			toIndex = fromIndex + length;
 		}
 		return sub(input, fromIndex, toIndex);
@@ -4587,18 +4587,17 @@ public class CharSequenceUtil {
 	}
 
 	/**
+	 * 字符串1和字符串2的公共前缀
 	 *
-	 * @param str1	字符串1
-	 * @param str2	字符串2
-	 * @return	字符串1和字符串2的公共前缀
+	 * @param str1 字符串1
+	 * @param str2 字符串2
+	 * @return 字符串1和字符串2的公共前缀
 	 */
 	public static CharSequence commonPrefix(CharSequence str1, CharSequence str2) {
-
 		if (isBlank(str1) || isBlank(str2)) {
 			return EMPTY;
 		}
-
-		int minLength = Math.min(str1.length(), str2.length());
+		final int minLength = Math.min(str1.length(), str2.length());
 
 		int index = 0;
 
@@ -4607,36 +4606,28 @@ public class CharSequenceUtil {
 			if (str1.charAt(index) != str2.charAt(index)) {
 				break;
 			}
-
 		}
-
 		return str1.subSequence(0, index);
 	}
 
 	/**
+	 * 字符串1和字符串2的公共后缀
 	 *
-	 * @param str1	字符串1
-	 * @param str2	字符串2
-	 * @return	字符串1和字符串2的公共后缀
+	 * @param str1 字符串1
+	 * @param str2 字符串2
+	 * @return 字符串1和字符串2的公共后缀
 	 */
 	public static CharSequence commonSuffix(CharSequence str1, CharSequence str2) {
-
 		if (isBlank(str1) || isBlank(str2)) {
 			return EMPTY;
 		}
-
 		int str1Index = str1.length() - 1;
-
 		int str2Index = str2.length() - 1;
-
 		for (; str1Index >= 0 && str2Index >= 0; str1Index--, str2Index--) {
-
 			if (str1.charAt(str1Index) != str2.charAt(str2Index)) {
 				break;
 			}
-
 		}
-
 		return str1.subSequence(str1Index + 1, str1.length());
 	}
 
diff --git a/hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java
index 80bfa5ee9..dd5efc9e4 100644
--- a/hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/util/NumberUtilTest.java
@@ -413,18 +413,18 @@ public class NumberUtilTest {
 
 		// -------------------------- Parse failed -----------------------
 
-		Long v1 = NumberUtil.parseLong(null, null);
+		final Long v1 = NumberUtil.parseLong(null, null);
 		assertThat(v1, nullValue());
 
-		Long v2 = NumberUtil.parseLong(StrUtil.EMPTY, null);
+		final Long v2 = NumberUtil.parseLong(StrUtil.EMPTY, null);
 		assertThat(v2, nullValue());
 
-		Long v3 = NumberUtil.parseLong("L3221", 1233L);
+		final Long v3 = NumberUtil.parseLong("L3221", 1233L);
 		assertThat(v3, equalTo(1233L));
 
 		// -------------------------- Parse success -----------------------
 
-		Long v4 = NumberUtil.parseLong("1233L", null);
+		final Long v4 = NumberUtil.parseLong("1233L", null);
 		assertThat(v4, equalTo(1233L));
 
 	}