Thymeleaf引入公共模板，打包成jar有错误

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Mon Feb 10 10:35:20 CST 2020
There was an unexpected error (type=Internal Server Error, status=500).
An error happened during template parsing (template: "class path resource [templates/index.html]")

我在templates/index.html引入了 公共模板 commons/bar.html，如下图

<div th:replace="~{/commons/bar :: bar}"></div>

 这里显示，解析/commons/bar错误，在网上查询资料，知道这里的/不能加，详情见https://blog.csdn.net/qq_37638061/article/details/83276472

org.thymeleaf.exceptions.TemplateInputException: Error resolving template [/commons/bar], template might not exist or might not be accessible by any of the configured Template Resolvers (template: "index" - line 23, col 14)
        at org.thymeleaf.engine.TemplateManager.resolveTemplate(TemplateManager.java:869) ~[thymeleaf-3.0.11.RELEASE.jar!/:3.0.11.RELEASE]
        at org.thymeleaf.engine.TemplateManager.parseStandalone(TemplateManager.java:250) ~[thymeleaf-3.0.11.RELEASE.jar!/:3.0.11.RELEASE]
        at org.thymeleaf.standard.expression.FragmentExpression.resolveExecutedFragmentExpression(FragmentExpression.java:588) ~[thymeleaf-3.0.11.RELEASE.jar!/:3.0.11.RELEASE]
        at org.thymeleaf.standard.processor.AbstractStandardFragmentInsertionTagProcessor.computeFragment(AbstractStandardFragmentInsertionTagProcessor.java:399) ~[thymeleaf-3.0.11.RELEASE.jar!/:3.0.11.RELEASE]
        at org.thymeleaf.standard.processor.AbstractStandardFragmentInsertionTagProcessor.doProcess(AbstractStandardFragmentInsertionTagProcessor.java:110) ~[thymeleaf-3.0.11.RELEASE.jar!/:3.0.11.RELEASE]
        at org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:74) ~[thymeleaf-3.0.11.RELEASE.jar!/:3.0.11.RELEASE]
        at org.thymeleaf.processor.element.AbstractElementTagProcessor.process(AbstractElementTagProcessor.java:95) ~[thymeleaf-3.0.11.RELEASE.jar!/:3.0.11.RELEASE]
        at org.thymeleaf.util.ProcessorConfigurationUtils$ElementTagProcessorWrapper.process(ProcessorConfigurationUtils.java:633) ~[thymeleaf-3.0.11.RELEASE.jar!/:3.0.11.RELEASE]
        at org.thymeleaf.engine.ProcessorTemplateHandler.handleOpenElement(ProcessorTemplateHandler.java:1314) ~[thymeleaf-3.0.11.RELEASE.jar!/:3.0.11.RELEASE]