diff --git a/doriswriter/src/main/java/com/alibaba/datax/plugin/writer/doriswriter/DorisStreamLoadObserver.java b/doriswriter/src/main/java/com/alibaba/datax/plugin/writer/doriswriter/DorisStreamLoadObserver.java
index 18162a21..a09f2cac 100644
--- a/doriswriter/src/main/java/com/alibaba/datax/plugin/writer/doriswriter/DorisStreamLoadObserver.java
+++ b/doriswriter/src/main/java/com/alibaba/datax/plugin/writer/doriswriter/DorisStreamLoadObserver.java
@@ -1,6 +1,7 @@
 package com.alibaba.datax.plugin.writer.doriswriter;
 
 import com.alibaba.fastjson2.JSON;
+import com.alibaba.fastjson2.JSONWriter;
 import org.apache.commons.codec.binary.Base64;
 import org.apache.http.HttpEntity;
 import org.apache.http.HttpHeaders;