diff --git a/UPDATE.md b/UPDATE.md
index 7223917..4188526 100644
--- a/UPDATE.md
+++ b/UPDATE.md
@@ -8,6 +8,7 @@ yexuejc-base 更新记录
 1. [FileUtil.java](src/main/java/com/yexuejc/base/util/FileUtil.java)增加读取大文件自定义方法和单纯读取方法
 2. JsonUtil 增加objToMap；优化obj2Json
 3. DateUtil 标准化日期时间的转换函数
+4. [AES.java](src/main/java/com/yexuejc/base/encrypt/AES.java) 兼容ECB(虽然不再建议利用)
 ---
 
 #### version ：1.5.2-jre11
diff --git a/src/main/java/com/yexuejc/base/encrypt/AES.java b/src/main/java/com/yexuejc/base/encrypt/AES.java
index 0941afa..213786b 100644
--- a/src/main/java/com/yexuejc/base/encrypt/AES.java
+++ b/src/main/java/com/yexuejc/base/encrypt/AES.java
@@ -93,7 +93,10 @@ public class AES {
             byte[] plaintext = new byte[plaintextLength];
             System.arraycopy(dataBytes, 0, plaintext, 0, dataBytes.length);
             SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(charset), AES_ALGORITHM);
-            IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes(charset));
+            IvParameterSpec ivspec = null;
+            if(!algorithm.name.contains("ECB")){
+                ivspec = new IvParameterSpec(iv.getBytes(charset));
+            }
             cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);
             byte[] encrypted = cipher.doFinal(plaintext);
             return Base64.getEncoder().encodeToString(encrypted);
@@ -115,7 +118,10 @@ public class AES {
             byte[] encrypted = Base64.getDecoder().decode(data);
             Cipher cipher = Cipher.getInstance(algorithm.name);
             SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(charset), AES_ALGORITHM);
-            IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes(charset));
+            IvParameterSpec ivspec = null;
+            if(!algorithm.name.contains("ECB")){
+                ivspec = new IvParameterSpec(iv.getBytes(charset));
+            }
             cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec);
             byte[] original = cipher.doFinal(encrypted);
             return new String(original, charset).trim();