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Caused by: org.thymeleaf.exceptions.TemplateInputException: Error resolving template [], template mi
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org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: Error resolving template [], template might not exist or might not be accessible by any of the configured Template Resolvers at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:503) ~[jakarta.servlet-api-4.0.3.jar:4.0.3] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:590) ~[jakarta.servlet-api-4.0.3.jar:4.0.3] at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:141) ~[spring-session-core-2.2.0.RELEASE.jar:2.2.0.RELEASE] at org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:82) ~[spring-session-core-2.2.0.RELEASE.jar:2.2.0.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-2.0.27.Final.jar:2.0.27.Final] at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) ~[undertow-core-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) ~[undertow-core-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) ~[undertow-core-2.0.27.Final.jar:2.0.27.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-2.0.27.Final.jar:2.0.27.Final] at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.SessionRestoringHandler.handleRequest(SessionRestoringHandler.java:119) ~[undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269) [undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78) [undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133) [undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130) [undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) [undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) [undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249) [undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78) [undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99) [undertow-servlet-2.0.27.Final.jar:2.0.27.Final] at io.undertow.server.Connectors.executeRootHandler(Connectors.java:376) [undertow-core-2.0.27.Final.jar:2.0.27.Final] at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830) [undertow-core-2.0.27.Final.jar:2.0.27.Final] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_331] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_331] at java.lang.Thread.run(Thread.java:750) [na:1.8.0_331] Caused by: org.thymeleaf.exceptions.TemplateInputException: Error resolving template [], template might not exist or might not be accessible by any of the configured Template Resolvers at org.thymeleaf.engine.TemplateManager.resolveTemplate(TemplateManager.java:869) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE] at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:607) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE] at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE] at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE] at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:362) ~[thymeleaf-spring5-3.0.11.RELEASE.jar:3.0.11.RELEASE] at org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:189) ~[thymeleaf-spring5-3.0.11.RELEASE.jar:3.0.11.RELEASE] at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1373) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1118) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] ... 52 common frames omitted
无意中将undertow换成了tomcat
现有pom配置如下
更换之前
<!--移除tomcat容器-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<!--加入undertow-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-undertow</artifactId>
</dependency>
更换之后
<!--tomcat容器--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency>
标签：accessible,27,undertow,servlet,template,java,2.0,might,Final 来源： https://www.cnblogs.com/q202105271618/p/16699547.html