diff --git a/docs-cn/14-reference/03-connector/java.mdx b/docs-cn/14-reference/03-connector/java.mdx
index f55302669e629615cd387e09cd5cf4c35b273377..660477dfb44cb5768938f3d06d02f31ee19c12cf 100644
--- a/docs-cn/14-reference/03-connector/java.mdx
+++ b/docs-cn/14-reference/03-connector/java.mdx
@@ -171,7 +171,7 @@ Connection conn = DriverManager.getConnection(jdbcUrl);
 
 连接开启批量拉取方式：
 
-```
+```java
 String url = "jdbc:TAOS-RS://taosdemo.com:6041/?user=root&password=taosdata";Properties properties = new Properties();
 properties.setProperty(TSDBDriver.PROPERTY_KEY_BATCH_LOAD, "true");
 Connection connection = DriverManager.getConnection(url, properties);