diff --git a/.gitignore b/.gitignore
index efc7569..d2bdc20 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,7 @@ Thumbs.db
 *.class
 
 # idea #
+!.idea/icon.png
 .idea
 *.iml
 
diff --git a/.idea/icon.png b/.idea/icon.png
new file mode 100644
index 0000000..caada1c
Binary files /dev/null and b/.idea/icon.png differ
diff --git a/blade-core-tool/src/main/java/org/springblade/core/tool/jackson/JsonUtil.java b/blade-core-tool/src/main/java/org/springblade/core/tool/jackson/JsonUtil.java
index 57180e8..a75d008 100644
--- a/blade-core-tool/src/main/java/org/springblade/core/tool/jackson/JsonUtil.java
+++ b/blade-core-tool/src/main/java/org/springblade/core/tool/jackson/JsonUtil.java
@@ -814,8 +814,7 @@ public class JsonUtil {
 			return Collections.emptyList();
 		}
 		try {
-			return getInstance().readValue(content, new TypeReference<List<Map<String, Object>>>() {
-			});
+			return getInstance().readValue(content, getListType(Map.class));
 		} catch (IOException e) {
 			throw Exceptions.unchecked(e);
 		}