ruanwenjun commented on code in PR #13050:
URL: 
https://github.com/apache/dolphinscheduler/pull/13050#discussion_r1321630114


##########
dolphinscheduler-service/src/main/java/org/apache/dolphinscheduler/service/json/DateJsonSerializer.java:
##########
@@ -33,6 +34,15 @@ public class DateJsonSerializer extends JsonSerializer<Date> 
{
 
     @Override
     public void serialize(Date value, JsonGenerator gen, SerializerProvider 
serializers) throws IOException {
-        gen.writeString(DateUtils.dateToString(value));
+        Date temp = value;
+        // In the internal implementation of JDK, java.sql.Date is inherited 
from java.util.Date, and java.sql.Date has
+        // rewritten many methods in java.util.Date, but it has not been 
implemented.
+        // Later, when formatting, you need to call the method in Date to 
report an error.
+        if (value instanceof java.sql.Date) {
+            Calendar calendar = Calendar.getInstance();
+            calendar.setTime(value);
+            temp = calendar.getTime();
+        }

Review Comment:
   The right way is to fix this at `DateUtils.dateToString`, rather than modify 
this class.



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