From 81aa105ff6c27eb28ad82166464bc5eecc59b34a Mon Sep 17 00:00:00 2001
From: kingbabingge <ainizfb@126.com>
Date: Wed, 19 Apr 2023 15:35:13 +0800
Subject: [PATCH] [Fix-13820][alert] Fix bodyParams is empty get error log
 (#13821)

initialize an empty objectNode to save contentField.
---
 .../dolphinscheduler/plugin/alert/http/HttpSender.java       | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dolphinscheduler-alert/dolphinscheduler-alert-plugins/dolphinscheduler-alert-http/src/main/java/org/apache/dolphinscheduler/plugin/alert/http/HttpSender.java b/dolphinscheduler-alert/dolphinscheduler-alert-plugins/dolphinscheduler-alert-http/src/main/java/org/apache/dolphinscheduler/plugin/alert/http/HttpSender.java
index c46f8cded5..ab4189bd13 100644
--- a/dolphinscheduler-alert/dolphinscheduler-alert-plugins/dolphinscheduler-alert-http/src/main/java/org/apache/dolphinscheduler/plugin/alert/http/HttpSender.java
+++ b/dolphinscheduler-alert/dolphinscheduler-alert-plugins/dolphinscheduler-alert-http/src/main/java/org/apache/dolphinscheduler/plugin/alert/http/HttpSender.java
@@ -163,7 +163,10 @@ public final class HttpSender {
      */
     private void setMsgInRequestBody(String msg) {
         try {
-            ObjectNode objectNode = JSONUtils.parseObject(bodyParams);
+            ObjectNode objectNode = JSONUtils.createObjectNode();
+            if (StringUtils.isNotBlank(bodyParams)) {
+                objectNode = JSONUtils.parseObject(bodyParams);
+            }
             // set msg content field
             objectNode.put(contentField, msg);
             StringEntity entity = new StringEntity(JSONUtils.toJsonString(objectNode), DEFAULT_CHARSET);