rty813 opened a new issue, #3290:
URL: https://github.com/apache/hertzbeat/issues/3290
### Is there an existing issue for this?
- [x] I have searched the existing issues
### Current Behavior
I upgraded from 1.6.0 to 1.7.0 and found that the notification did not work
### Expected Behavior
no error
### Steps To Reproduce
_No response_
### Environment
```markdown
HertzBeat version(s):1.7.0
```
### Debug logs
```
2025-04-23 09:34:15.637 [notify-worker-3] ERROR freemarker.runtime Line:60
- Error executing FreeMarker template
freemarker.core.InvalidReferenceException: The following has evaluated to
null or missing:
==> targetLabel [in template "freeMakerTemplate" at line 2, column 11]
----
Tip: If the failing expression is known to legally refer to something that's
sometimes null or missing, either specify a default value like
myOptionalVar!myDefault, or use <#if
myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the
last step of the expression; to cover the whole expression, use parenthesis:
(myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
----
----
FTL stack trace ("~" means nesting-related):
- Failed at: ${targetLabel} [in template "freeMakerTemplate" at
line 2, column 9]
----
at
freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134)
at
freemarker.core.EvalUtil.coerceModelToTextualCommon(EvalUtil.java:490)
at
freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:410)
at
freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:379)
at
freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:104)
at freemarker.core.DollarVariable.accept(DollarVariable.java:63)
at freemarker.core.Environment.visit(Environment.java:344)
at freemarker.core.Environment.visit(Environment.java:350)
at freemarker.core.Environment.process(Environment.java:323)
at freemarker.template.Template.process(Template.java:383)
at
org.springframework.ui.freemarker.FreeMarkerTemplateUtils.processTemplateIntoString(FreeMarkerTemplateUtils.java:51)
at
org.apache.hertzbeat.alert.notice.impl.AbstractAlertNotifyHandlerImpl.renderContent(AbstractAlertNotifyHandlerImpl.java:76)
at
org.apache.hertzbeat.alert.notice.impl.DingTalkRobotAlertNotifyHandlerImpl.send(DingTalkRobotAlertNotifyHandlerImpl.java:51)
at
org.apache.hertzbeat.alert.notice.AlertNoticeDispatch.sendNoticeMsg(AlertNoticeDispatch.java:87)
at
org.apache.hertzbeat.alert.notice.AlertNoticeDispatch.lambda$sendNotify$3(AlertNoticeDispatch.java:127)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at
org.apache.hertzbeat.alert.notice.AlertNoticeDispatch.lambda$sendNotify$4(AlertNoticeDispatch.java:125)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)
2025-04-23 09:34:15.638 [notify-worker-3] WARN
org.apache.hertzbeat.alert.notice.AlertNoticeDispatch Line:130 - DispatchTask
sendNoticeMsg error, message: [DingTalk Notify Error] The following has
evaluated to null or missing:
==> targetLabel [in template "freeMakerTemplate" at line 2, column 11]
----
Tip: If the failing expression is known to legally refer to something that's
sometimes null or missing, either specify a default value like
myOptionalVar!myDefault, or use <#if
myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the
last step of the expression; to cover the whole expression, use parenthesis:
(myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
----
----
FTL stack trace ("~" means nesting-related):
- Failed at: ${targetLabel} [in template "freeMakerTemplate" at
line 2, column 9]
----
```
### Anything else?
_No response_
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