diff --git a/hutool-core/src/main/java/cn/hutool/core/util/ObjectUtil.java b/hutool-core/src/main/java/cn/hutool/core/util/ObjectUtil.java
index 9f68a82fc..65bb2fafe 100644
--- a/hutool-core/src/main/java/cn/hutool/core/util/ObjectUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/util/ObjectUtil.java
@@ -356,11 +356,11 @@ public class ObjectUtil {
 	 * 如果给定对象为{@code null}或者""或者空白符返回默认值
 	 *
 	 * <pre>
-	 * ObjectUtil.defaultIfEmpty(null, null)      = null
-	 * ObjectUtil.defaultIfEmpty(null, "")        = ""
-	 * ObjectUtil.defaultIfEmpty("", "zz")      = "zz"
-	 * ObjectUtil.defaultIfEmpty(" ", "zz")      = "zz"
-	 * ObjectUtil.defaultIfEmpty("abc", *)        = "abc"
+	 * ObjectUtil.defaultIfBlank(null, null)      = null
+	 * ObjectUtil.defaultIfBlank(null, "")        = ""
+	 * ObjectUtil.defaultIfBlank("", "zz")      = "zz"
+	 * ObjectUtil.defaultIfBlank(" ", "zz")      = "zz"
+	 * ObjectUtil.defaultIfBlank("abc", *)        = "abc"
 	 * </pre>
 	 *
 	 * @param <T>          对象类型（必须实现CharSequence接口）
diff --git a/hutool-crypto/src/main/java/cn/hutool/crypto/symmetric/SymmetricCrypto.java b/hutool-crypto/src/main/java/cn/hutool/crypto/symmetric/SymmetricCrypto.java
index d077a8dd6..68431759c 100644
--- a/hutool-crypto/src/main/java/cn/hutool/crypto/symmetric/SymmetricCrypto.java
+++ b/hutool-crypto/src/main/java/cn/hutool/crypto/symmetric/SymmetricCrypto.java
@@ -219,7 +219,7 @@ public class SymmetricCrypto implements Serializable {
 	}
 
 	/**
-	 * 加密，针对大数据量，结束后不关闭流
+	 * 加密，针对大数据量，可选结束后是否关闭流
 	 *
 	 * @param data 被加密的字符串
 	 * @param out 输出流，可以是文件或网络位置