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John Niang 2d4e3b2c54
Fix the problem of undetermined locale (#7458) 
#### What type of PR is this?

/kind bug
/area core
/milestone 2.21.x

#### What this PR does / why we need it:

This PR check if the locale is undetermined during resolving locale. Or it will cause the error below if locale is `und`:

```java
2025-05-21T17:28:45.953+08:00 ERROR 58760 --- [undedElastic-14] o.s.w.s.adapter.HttpWebHandlerAdapter    : [c1824fa5-1] 500 Server Error for HTTP GET "/"

org.thymeleaf.exceptions.TemplateOutputException: An error happened during template rendering
	at org.thymeleaf.engine.OutputTemplateHandler.handleText(OutputTemplateHandler.java:75) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.AbstractTemplateHandler.handleText(AbstractTemplateHandler.java:221) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.ProcessorTemplateHandler.handleText(ProcessorTemplateHandler.java:587) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.Text.beHandled(Text.java:97) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.Model.process(Model.java:300) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.GatheringModelProcessable.process(GatheringModelProcessable.java:78) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.ProcessorTemplateHandler.queueProcessable(ProcessorTemplateHandler.java:2106) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.ProcessorTemplateHandler.handleCloseElement(ProcessorTemplateHandler.java:1642) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.CloseElementTag.beHandled(CloseElementTag.java:139) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.Model.process(Model.java:300) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.OpenElementTagModelProcessable.process(OpenElementTagModelProcessable.java:110) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.ProcessorTemplateHandler.queueProcessable(ProcessorTemplateHandler.java:2106) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.ProcessorTemplateHandler.handleOpenElement(ProcessorTemplateHandler.java:1559) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.OpenElementTag.beHandled(OpenElementTag.java:205) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.TemplateModel.process(TemplateModel.java:155) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.ThrottledTemplateProcessor.process(ThrottledTemplateProcessor.java:235) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.ThrottledTemplateProcessor.process(ThrottledTemplateProcessor.java:200) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.spring6.SpringWebFluxTemplateEngine$StreamThrottledTemplateProcessor.process(SpringWebFluxTemplateEngine.java:720) ~[thymeleaf-spring6-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.spring6.SpringWebFluxTemplateEngine.lambda$createChunkedStream$2(SpringWebFluxTemplateEngine.java:269) ~[thymeleaf-spring6-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at reactor.core.publisher.FluxGenerate$GenerateSubscription.slowPath(FluxGenerate.java:271) ~[reactor-core-3.7.5.jar:3.7.5]
	at reactor.core.publisher.FluxGenerate$GenerateSubscription.request(FluxGenerate.java:213) ~[reactor-core-3.7.5.jar:3.7.5]
	at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.request(FluxPeekFuseable.java:144) ~[reactor-core-3.7.5.jar:3.7.5]
	at reactor.core.publisher.FluxSubscribeOn$SubscribeOnSubscriber.requestUpstream(FluxSubscribeOn.java:131) ~[reactor-core-3.7.5.jar:3.7.5]
	at reactor.core.publisher.FluxSubscribeOn$SubscribeOnSubscriber.onSubscribe(FluxSubscribeOn.java:124) ~[reactor-core-3.7.5.jar:3.7.5]
	at reactor.core.publisher.FluxPeekFuseable$PeekFuseableSubscriber.onSubscribe(FluxPeekFuseable.java:178) ~[reactor-core-3.7.5.jar:3.7.5]
	at reactor.core.publisher.FluxGenerate.subscribe(FluxGenerate.java:85) ~[reactor-core-3.7.5.jar:3.7.5]
	at reactor.core.publisher.InternalFluxOperator.subscribe(InternalFluxOperator.java:68) ~[reactor-core-3.7.5.jar:3.7.5]
	at reactor.core.publisher.FluxSubscribeOn$SubscribeOnSubscriber.run(FluxSubscribeOn.java:194) ~[reactor-core-3.7.5.jar:3.7.5]
	at reactor.core.scheduler.BoundedElasticThreadPerTaskScheduler$SchedulerTask.run(BoundedElasticThreadPerTaskScheduler.java:1013) ~[reactor-core-3.7.5.jar:3.7.5]
	at java.base/java.lang.VirtualThread.run(VirtualThread.java:329) ~[na:na]
Caused by: org.thymeleaf.exceptions.TemplateProcessingException: Locale "" cannot be used as it does not specify a language. (template: "modules/layout" - line 12, col 49)
	at org.thymeleaf.messageresolver.StandardMessageResolutionUtils.computeMessageResourceNamesFromBase(StandardMessageResolutionUtils.java:202) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.messageresolver.StandardMessageResolutionUtils.resolveMessagesForTemplate(StandardMessageResolutionUtils.java:69) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.messageresolver.StandardMessageResolver.resolveMessagesForTemplate(StandardMessageResolver.java:380) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.messageresolver.StandardMessageResolver.resolveMessage(StandardMessageResolver.java:282) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.messageresolver.StandardMessageResolver.resolveMessage(StandardMessageResolver.java:227) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.context.AbstractEngineContext.getMessage(AbstractEngineContext.java:134) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.standard.expression.MessageExpression.executeMessageExpression(MessageExpression.java:265) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.standard.expression.SimpleExpression.executeSimple(SimpleExpression.java:69) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.standard.expression.Expression.execute(Expression.java:109) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.standard.expression.Expression.execute(Expression.java:138) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.standard.processor.StandardUtextTagProcessor.doProcess(StandardUtextTagProcessor.java:87) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:74) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.processor.element.AbstractElementTagProcessor.process(AbstractElementTagProcessor.java:95) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.util.ProcessorConfigurationUtils$ElementTagProcessorWrapper.process(ProcessorConfigurationUtils.java:633) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.ProcessorTemplateHandler.handleOpenElement(ProcessorTemplateHandler.java:1314) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.OpenElementTag.beHandled(OpenElementTag.java:205) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.TemplateModel.process(TemplateModel.java:136) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.TemplateManager.process(TemplateManager.java:519) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.util.LazyProcessingCharSequence.writeUnresolved(LazyProcessingCharSequence.java:85) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.util.AbstractLazyCharSequence.write(AbstractLazyCharSequence.java:103) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.AbstractTextualTemplateEvent.writeContent(AbstractTextualTemplateEvent.java:224) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.Text.write(Text.java:78) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	at org.thymeleaf.engine.OutputTemplateHandler.handleText(OutputTemplateHandler.java:71) ~[thymeleaf-3.1.3.RELEASE.jar:3.1.3.RELEASE]
	... 29 common frames omitted
```

#### Does this PR introduce a user-facing change?

```release-note
修复因 Locale 解析错误导致无法访问页面的问题
```
 		2025-05-22 03:14:00 +00:00
.devcontainer Add devcontainer support (#6252) 2024-07-10 10:21:25 +00:00
.github Set Java 21 as minimal version (#7451) 2025-05-20 02:05:25 +00:00
api Merge branch 'main' into refactor/libs-versions 2025-05-20 10:07:25 +08:00
api-docs/openapi/v3_0 Bump versions to 2.21.0-SNAPSHOT (#7448) 2025-05-19 04:33:40 +00:00
application Fix the problem of undetermined locale (#7458) 2025-05-22 03:14:00 +00:00
buildSrc Fix failing checks of staging repository when releasing to Maven (#7114) 2024-12-05 08:45:15 +00:00
config/checkstyle chore: add checkstyle rule (#2091) 2022-05-17 06:46:11 +00:00
docs Add before and after security web filters (#6297) 2024-07-09 14:05:24 +00:00
e2e Refine setup page 2024-10-09 12:20:54 +08:00
gradle Merge branch 'main' into refactor/libs-versions 2025-05-20 10:07:25 +08:00
hack chore: add cherry_pick_pull.sh for cherry-picking pull request (#1554) 2021-12-03 10:21:24 +08:00
platform Refactor dependencies and plugins with version catelog 2025-05-19 16:05:56 +08:00
ui refactor: improve entity component layout for better device responsiveness (#7383) 2025-05-21 11:29:41 +08:00
.dockerignore chore: rename console to ui in some files (#5347) 2024-02-07 14:40:08 +00:00
.editorconfig Support backup and restore (#4206) 2023-07-24 08:26:16 +00:00
.gitignore test: add e2e test cases of user, role, and plugin (#4920) 2023-11-28 21:52:44 +08:00
.gitpod.yml test: add e2e test cases of user, role, and plugin (#4920) 2023-11-28 21:52:44 +08:00
CODE_OF_CONDUCT.md docs: add CODE_OF_CONDUCT.md (#2150) 2022-06-12 08:10:12 +00:00
CONTRIBUTING.md docs: update the branch name from `master` to `main` in contribution.md (#5359) 2024-02-17 08:00:15 +00:00
Dockerfile Enable Virtual Thread when running on JVM 21 (#7261) 2025-03-05 02:32:57 +00:00
LICENSE Create LICENSE 2018-03-21 21:39:46 +08:00
OWNERS chore: add LIlGG as a approver (#6795) 2024-10-08 18:25:22 +08:00
README.md docs: add a suggestion for using 1Panel in README.md (#7226) 2025-02-12 14:48:19 +00:00
SECURITY.md Mark the security policy for version 1.x as unsupported (#5450) 2024-03-06 06:06:07 +00:00
gradle.properties Upgrade JSONAssert to 2.0-rc1 2025-05-21 10:37:04 +08:00
gradlew Upgrade to Gradle 8.14 (#7450) 2025-05-20 10:06:23 +08:00
gradlew.bat Upgrade to Gradle 8.14 (#7450) 2025-05-20 10:06:23 +08:00
settings.gradle Add build script for ui project 2024-02-03 22:51:50 +08:00

README.md

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Halo [ˈheɪloʊ]，强大易用的开源建站工具。

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docker run -d --name halo -p 8090:8090 -v ~/.halo2:/root/.halo2 halohub/halo:2.20

或者点击下方按钮使用 Gitpod 启动一个体验环境：

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