diff --git a/core/src/main/java/org/wangliang181230/core/util/StringUtils.java b/core/src/main/java/org/wangliang181230/core/util/StringUtils.java
index 8fd1d4d7ce18a4ec132c3bcd55afa3a44ad97039..cca244d992daf9ed6389719d1674f0523dc17660 100644
--- a/core/src/main/java/org/wangliang181230/core/util/StringUtils.java
+++ b/core/src/main/java/org/wangliang181230/core/util/StringUtils.java
@@ -6,4 +6,23 @@ package org.wangliang181230.core.util;
  * @author 王良
  */
 public class StringUtils {
+
+	public static boolean isEmpty(String str) {
+		return str == null || str.isEmpty();
+	}
+
+	public static boolean isBlank(String str) {
+		if (isEmpty(str)) {
+			return true;
+		}
+
+		for (int i = 0; i < str.length(); ++i) {
+			if (Character.isWhitespace(str.charAt(i))) {
+				return false;
+			}
+		}
+
+		return true;
+	}
+
 }