spring boot+ Thymeleaf 数据校验时返回错误信息使用th标签读取不到值

第一次使用springboot中的thymeleaf获取controller中的值，但是提示错误  

spring boot 中使用thymeleaf引用css

 如图在spring boot 中使用thymeleaf引用css，为什么还是会提示找不到这个CSS，导致最后也没有起到效果，问题出在哪里呢？

spring boot+thymeleaf与html+json+spring boot比哪个更好？

最近在自学spring boot，看到做页面时用了thymeleaf，感觉和jsp差不多就是功能更强大了些。但是困扰我的是，这样前后端不就又缠到一起了吗？之前用过纯html用json来交互，用spring配上swagger做接口，简直爽的不要不要的了，前后分离，后台专心做数据，前端专心展示数据，分工明确且效率高，那么用回thymeleaf这样的东西是不是倒退了，还请大神教导一下，谢谢！

spring boot+thymeleaf+js的问题

if (ids.length < 1) { alert("您还没有选中！"); return false; } 页面js如上，运行会出现： 页面报错： -----------------------错误信息开始--------------------------- Whitelabel Error Page This application has no explicit mapping for /error, so you are seeing this as a fallback. Sat Nov 04 09:55:55 CST 2017 There was an unexpected error (type=Internal Server Error, status=500). Exception parsing document: template="test", line 151 - column 25 -------------------------错误信息结束------------------------- 控制台报错： ----------------------错误信息开始---------------------------- 2017-11-04 10:04:43.833 ERROR 9032 --- [nio-8080-exec-4] o.thymeleaf.templateparser.ErrorHandler : [THYMELEAF][http-nio-8080-exec-4] Fatal error during parsing org.xml.sax.SAXParseException: 元素内容必须由格式正确的字符数据或标记组成。 at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:400) [na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:327) [na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1472) [na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.startOfMarkup(XMLDocumentFragmentScannerImpl.java:2635) [na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2732) [na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:602) [na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:505) [na:1.8.0_144] at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:841) [na:1.8.0_144] at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:770) [na:1.8.0_144] at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141) [na:1.8.0_144] at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213) [na:1.8.0_144] at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:643) [na:1.8.0_144] at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:327) [na:1.8.0_144] at org.thymeleaf.templateparser.xmlsax.AbstractNonValidatingSAXTemplateParser.doParse(AbstractNonValidatingSAXTemplateParser.java:209) [thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.templateparser.xmlsax.AbstractNonValidatingSAXTemplateParser.parseTemplateUsingPool(AbstractNonValidatingSAXTemplateParser.java:134) [thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.templateparser.xmlsax.AbstractNonValidatingSAXTemplateParser.parseTemplate(AbstractNonValidatingSAXTemplateParser.java:116) [thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.TemplateRepository.getTemplate(TemplateRepository.java:278) [thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1104) [thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1060) [thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1011) [thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:335) [thymeleaf-spring4-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:190) [thymeleaf-spring4-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1286) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1041) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:984) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat-embed-websocket-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108) [spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) [spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) [spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.23.jar:8.5.23] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_144] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_144] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.23.jar:8.5.23] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144] 2017-11-04 10:04:43.834 ERROR 9032 --- [nio-8080-exec-4] org.thymeleaf.TemplateEngine : [THYMELEAF][http-nio-8080-exec-4] Exception processing template "test": Exception parsing document: template="test", line 151 - column 25 2017-11-04 10:04:43.835 ERROR 9032 --- [nio-8080-exec-4] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: Exception parsing document: template="test", line 151 - column 25] with root cause org.xml.sax.SAXParseException: 元素内容必须由格式正确的字符数据或标记组成。 at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:400) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:327) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1472) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.startOfMarkup(XMLDocumentFragmentScannerImpl.java:2635) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2732) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:602) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:505) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:841) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:770) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:643) ~[na:1.8.0_144] at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:327) ~[na:1.8.0_144] at org.thymeleaf.templateparser.xmlsax.AbstractNonValidatingSAXTemplateParser.doParse(AbstractNonValidatingSAXTemplateParser.java:209) ~[thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.templateparser.xmlsax.AbstractNonValidatingSAXTemplateParser.parseTemplateUsingPool(AbstractNonValidatingSAXTemplateParser.java:134) ~[thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.templateparser.xmlsax.AbstractNonValidatingSAXTemplateParser.parseTemplate(AbstractNonValidatingSAXTemplateParser.java:116) ~[thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.TemplateRepository.getTemplate(TemplateRepository.java:278) ~[thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1104) ~[thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1060) ~[thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1011) ~[thymeleaf-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:335) ~[thymeleaf-spring4-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:190) ~[thymeleaf-spring4-2.1.5.RELEASE.jar:2.1.5.RELEASE] at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1286) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1041) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:984) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) ~[tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459) [tomcat-embed-core-8.5.23.jar:8.5.23] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.23.jar:8.5.23] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_144] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_144] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.23.jar:8.5.23] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144]l.impl.XMLScanner.reportFatalError(XMLScanner.java:1472) [na:1.8.0_144] ----------------------错误信息结束----------------------------

spring boot 2外部tomcat启动错误：check whether you have multiple ContextLoader* definitions in your web.xml!

spring boot 2外部tomcat启动错误 java.lang.IllegalStateException: Cannot initialize context because there is already a root application context present - check whether you have multiple ContextLoader* definitions in your web.xml! pom： ``` <!-- Spring Boot Dubbo 依赖 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> </exclusion> <exclusion> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <!-- <scope>compile</scope>--> <scope>provided</scope><!-- 必须要加，不然报错 --> </dependency> <!-- <dependency>--> <!-- <groupId>org.springframework.boot</groupId>--> <!-- <artifactId>spring-boot-starter-velocity</artifactId>--> <!-- <version>1.2.2.RELEASE</version>--> <!-- </dependency>--> <!-- <dependency>--> <!-- <groupId>org.springframework.boot</groupId>--> <!-- <artifactId>spring-boot-legacy</artifactId>--> <!-- <version>1.1.0.RELEASE</version>--> <!-- </dependency>--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>com.alibaba.boot</groupId> <artifactId>dubbo-spring-boot-starter</artifactId> <version>0.2.0</version> </dependency> ``` web.xml检查过没有ContextLoaderListener，ContextLoaderListener和RequestContextListener写在代码中 ``` @Configuration public class ListenerConfig { /** * 配置 RequestContextListener * @return */ @Bean public ServletListenerRegistrationBean<RequestContextListener> listenerRegistration1() { return new ServletListenerRegistrationBean<>( new RequestContextListener()); } /** * 配置 ContextLoaderListener * @return */ @Bean public ServletListenerRegistrationBean<ContextLoaderListener> listenerRegistration2(){ return new ServletListenerRegistrationBean<>( new ContextLoaderListener() ); } } ```

spring+thymeleaf页面加载出错

spring+thymeleaf，页面加载出错 

springboot传输数据到thymeleaf的一个问题

 +++  +++ +++ +++ **1、图一红框处，我把 查询所有的数据 放进了 map里面，但是并没有用类似addAttribute的方法把map传出去，为什么前端还能直接拿到map的数据呢？ | 2、请问大神们有没有比较全面的 thymeleaf传值 的资料或者链接能发给我看看（这里可以再加点分）**

spring boot 前台向后台用thymeleaf传参

前台代码 ``` <form th:action="@{/loadredisstatus}" method="post" th:object="${redisbaseinfo}" > <select class="width-40 chosen-select" name="knowledgePointIdSet" data-placeholder="选择redis"> <option th:each="redisinfolist:${session.redisinfolist}" th:value="${redisinfolist.getRedisIp()}+':'+${redisinfolist.getRedisPort()}" th:text="${redisinfolist.getRedisIp()}+':'+${redisinfolist.getRedisPort()}" th:field="*{ipandport}" >模块名称</option> </select> <input type="submit" /> </form> ``` 后台代码 ``` @RequestMapping(value = "/loadredisstatus", method = RequestMethod.POST) public void loginPost(Model model, @ModelAttribute(value = "redisbaseinfo") RedisBaseInfo redisbaseinfo, HttpServletResponse response, HttpSession session) { String ipandport=redisbaseinfo.getIpandport(); System.out.println("in loadredisstatus "+ipandport); if(ipandport!=null&&!ipandport.trim().equals("")){ String [] arr=ipandport.split(":"); addCourse(response,session,arr[0],arr[1]); } } ``` RedisBaseInfo代码 ``` public class RedisBaseInfo extends BaseObject { private String ipandport; public String getIpandport() { return ipandport; } public void setIpandport(String ipandport) { this.ipandport = ipandport; } } ``` 如上所示现在 ``` th:object="${redisbaseinfo}" ``` 和 ``` th:field="*{ipandport}" ``` 两处报错，运行的话根本运行不起来，想实现的功能是选择一个下拉菜单选项并点击按钮提交后吧他的text封装到redisbaseinfo类里面传到后台处理，请问具体该怎么改这段代码呢

spring boot 集成 thymeleaf 静态资源响应Content-Type: application/json;charset=UTF-8

正常配置了 静态资源访问 ``` @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/"); } ```

thymeleaf 怎么动态引入html？

我想实现一个左侧是菜单，点击菜单右侧加载不同的html页面 ，用的是spring boot +thymeleaf 不用iframe做 ，各位大神求指点！！！！

thymeleaf实现ifream效果

前端页面整合了thymeleaf以后，ifream标签就没效果了。使用 th:replace 标签就把页面写死了。 请问怎么实现点击左侧导航栏，使右侧区域呈现不同的html页面呢？ 求大神解答！

spring boot 运行出错了 Application failed to start with classpath？

 ```java "C:\Program Files\Java\jdk1.8.0_121\bin\java.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=50188 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=localhost -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true -javaagent:E:\IDEA2018.2.3\lib\idea_rt.jar=50189:E:\IDEA2018.2.3\bin -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_121\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\rt.jar;E:\maven\kexie\target\classes;C:\Users\amdin\.m2\repository\org\springframework\boot\spring-boot-starter-thymeleaf\2.1.7.RELEASE\spring-boot-starter-thymeleaf-2.1.7.RELEASE.jar;C:\Users\amdin\.m2\repository\org\springframework\boot\spring-boot-starter\2.1.7.RELEASE\spring-boot-starter-2.1.7.RELEASE.jar;C:\Users\amdin\.m2\repository\org\springframework\boot\spring-boot\2.1.7.RELEASE\spring-boot-2.1.7.RELEASE.jar;C:\Users\amdin\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.1.7.RELEASE\spring-boot-autoconfigure-2.1.7.RELEASE.jar;C:\Users\amdin\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.1.7.RELEASE\spring-boot-starter-logging-2.1.7.RELEASE.jar;C:\Users\amdin\.m2\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;C:\Users\amdin\.m2\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;C:\Users\amdin\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.11.2\log4j-to-slf4j-2.11.2.jar;C:\Users\amdin\.m2\repository\org\apache\logging\log4j\log4j-api\2.11.2\log4j-api-2.11.2.jar;C:\Users\amdin\.m2\repository\org\slf4j\jul-to-slf4j\1.7.26\jul-to-slf4j-1.7.26.jar;C:\Users\amdin\.m2\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;C:\Users\amdin\.m2\repository\org\yaml\snakeyaml\1.23\snakeyaml-1.23.jar;C:\Users\amdin\.m2\repository\org\thymeleaf\thymeleaf-spring5\3.0.11.RELEASE\thymeleaf-spring5-3.0.11.RELEASE.jar;C:\Users\amdin\.m2\repository\org\thymeleaf\thymeleaf\3.0.11.RELEASE\thymeleaf-3.0.11.RELEASE.jar;C:\Users\amdin\.m2\repository\org\attoparser\attoparser\2.0.5.RELEASE\attoparser-2.0.5.RELEASE.jar;C:\Users\amdin\.m2\repository\org\unbescape\unbescape\1.1.6.RELEASE\unbescape-1.1.6.RELEASE.jar;C:\Users\amdin\.m2\repository\org\thymeleaf\extras\thymeleaf-extras-java8time\3.0.4.RELEASE\thymeleaf-extras-java8time-3.0.4.RELEASE.jar;C:\Users\amdin\.m2\repository\org\mybatis\spring\boot\mybatis-spring-boot-starter\2.0.1\mybatis-spring-boot-starter-2.0.1.jar;C:\Users\amdin\.m2\repository\org\springframework\boot\spring-boot-starter-jdbc\2.1.7.RELEASE\spring-boot-starter-jdbc-2.1.7.RELEASE.jar;C:\Users\amdin\.m2\repository\com\zaxxer\HikariCP\3.2.0\HikariCP-3.2.0.jar;C:\Users\amdin\.m2\repository\org\springframework\spring-jdbc\5.1.9.RELEASE\spring-jdbc-5.1.9.RELEASE.jar;C:\Users\amdin\.m2\repository\org\springframework\spring-tx\5.1.9.RELEASE\spring-tx-5.1.9.RELEASE.jar;C:\Users\amdin\.m2\repository\org\mybatis\spring\boot\mybatis-spring-boot-autoconfigure\2.0.1\mybatis-spring-boot-autoconfigure-2.0.1.jar;C:\Users\amdin\.m2\repository\org\mybatis\mybatis\3.5.1\mybatis-3.5.1.jar;C:\Users\amdin\.m2\repository\org\mybatis\mybatis-spring\2.0.1\mybatis-spring-2.0.1.jar;C:\Users\amdin\.m2\repository\com\alibaba\druid\1.1.16\druid-1.1.16.jar;C:\Users\amdin\.m2\repository\com\microsoft\sqlserver\mssql-jdbc\6.4.0.jre8\mssql-jdbc-6.4.0.jre8.jar;C:\Users\amdin\.m2\repository\org\mybatis\generator\mybatis-generator-core\1.3.7\mybatis-generator-core-1.3.7.jar;C:\Users\amdin\.m2\repository\org\springframework\boot\spring-boot-starter-web\2.1.7.RELEASE\spring-boot-starter-web-2.1.7.RELEASE.jar;C:\Users\amdin\.m2\repository\org\springframework\boot\spring-boot-starter-json\2.1.7.RELEASE\spring-boot-starter-json-2.1.7.RELEASE.jar;C:\Users\amdin\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.9.9\jackson-datatype-jdk8-2.9.9.jar;C:\Users\amdin\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.9.9\jackson-datatype-jsr310-2.9.9.jar;C:\Users\amdin\.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.9.9\jackson-module-parameter-names-2.9.9.jar;C:\Users\amdin\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.1.7.RELEASE\spring-boot-starter-tomcat-2.1.7.RELEASE.jar;C:\Users\amdin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.22\tomcat-embed-core-9.0.22.jar;C:\Users\amdin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.22\tomcat-embed-el-9.0.22.jar;C:\Users\amdin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.22\tomcat-embed-websocket-9.0.22.jar;C:\Users\amdin\.m2\repository\org\hibernate\validator\hibernate-validator\6.0.17.Final\hibernate-validator-6.0.17.Final.jar;C:\Users\amdin\.m2\repository\javax\validation\validation-api\2.0.1.Final\validation-api-2.0.1.Final.jar;C:\Users\amdin\.m2\repository\org\jboss\logging\jboss-logging\3.3.2.Final\jboss-logging-3.3.2.Final.jar;C:\Users\amdin\.m2\repository\com\fasterxml\classmate\1.4.0\classmate-1.4.0.jar;C:\Users\amdin\.m2\repository\org\springframework\spring-web\5.1.9.RELEASE\spring-web-5.1.9.RELEASE.jar;C:\Users\amdin\.m2\repository\org\springframework\spring-beans\5.1.9.RELEASE\spring-beans-5.1.9.RELEASE.jar;C:\Users\amdin\.m2\repository\org\springframework\spring-webmvc\5.1.9.RELEASE\spring-webmvc-5.1.9.RELEASE.jar;C:\Users\amdin\.m2\repository\org\springframework\spring-aop\5.1.9.RELEASE\spring-aop-5.1.9.RELEASE.jar;C:\Users\amdin\.m2\repository\org\springframework\spring-context\5.1.9.RELEASE\spring-context-5.1.9.RELEASE.jar;C:\Users\amdin\.m2\repository\org\springframework\spring-expression\5.1.9.RELEASE\spring-expression-5.1.9.RELEASE.jar;C:\Users\amdin\.m2\repository\junit\junit\4.12\junit-4.12.jar;C:\Users\amdin\.m2\repository\org\hamcrest\hamcrest-core\1.3\hamcrest-core-1.3.jar;C:\Users\amdin\.m2\repository\org\springframework\spring-core\5.1.9.RELEASE\spring-core-5.1.9.RELEASE.jar;C:\Users\amdin\.m2\repository\org\springframework\spring-jcl\5.1.9.RELEASE\spring-jcl-5.1.9.RELEASE.jar;C:\Users\amdin\.m2\repository\org\slf4j\slf4j-api\1.7.26\slf4j-api-1.7.26.jar;C:\Users\amdin\.m2\repository\org\slf4j\log4j-over-slf4j\1.7.26\log4j-over-slf4j-1.7.26.jar;C:\Users\amdin\.m2\repository\org\slf4j\jcl-over-slf4j\1.7.26\jcl-over-slf4j-1.7.26.jar;C:\Users\amdin\.m2\repository\com\github\pagehelper\pagehelper-spring-boot-starter\1.2.5\pagehelper-spring-boot-starter-1.2.5.jar;C:\Users\amdin\.m2\repository\com\github\pagehelper\pagehelper-spring-boot-autoconfigure\1.2.5\pagehelper-spring-boot-autoconfigure-1.2.5.jar;C:\Users\amdin\.m2\repository\org\apache\commons\commons-lang3\3.9\commons-lang3-3.9.jar;C:\Users\amdin\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.9.8\jackson-databind-2.9.8.jar;C:\Users\amdin\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.0\jackson-annotations-2.9.0.jar;C:\Users\amdin\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.9.9\jackson-core-2.9.9.jar;C:\Users\amdin\.m2\repository\org\apache\httpcomponents\httpclient\4.5.8\httpclient-4.5.8.jar;C:\Users\amdin\.m2\repository\org\json\json\20180813\json-20180813.jar;C:\Users\amdin\.m2\repository\commons-fileupload\commons-fileupload\1.4\commons-fileupload-1.4.jar;C:\Users\amdin\.m2\repository\commons-io\commons-io\2.2\commons-io-2.2.jar;C:\Users\amdin\.m2\repository\org\bouncycastle\bcprov-jdk15on\1.61\bcprov-jdk15on-1.61.jar;C:\Users\amdin\.m2\repository\commons-codec\commons-codec\1.12\commons-codec-1.12.jar;C:\Users\amdin\.m2\repository\jdom\jdom\1.0\jdom-1.0.jar;C:\Users\amdin\.m2\repository\com\google\code\gson\gson\2.8.5\gson-2.8.5.jar;C:\Users\amdin\.m2\repository\commons-logging\commons-logging\1.2\commons-logging-1.2.jar;C:\Users\amdin\.m2\repository\dom4j\dom4j\1.6.1\dom4j-1.6.1.jar;C:\Users\amdin\.m2\repository\xml-apis\xml-apis\1.4.01\xml-apis-1.4.01.jar;C:\Users\amdin\.m2\repository\org\apache\httpcomponents\httpcore\4.4.11\httpcore-4.4.11.jar;C:\Users\amdin\.m2\repository\org\apache\httpcomponents\httpmime\4.5.8\httpmime-4.5.8.jar;C:\Users\amdin\.m2\repository\com\googlecode\json-simple\json-simple\1.1.1\json-simple-1.1.1.jar;C:\Users\amdin\.m2\repository\org\apache\shiro\shiro-spring\1.3.2\shiro-spring-1.3.2.jar;C:\Users\amdin\.m2\repository\org\apache\shiro\shiro-core\1.3.2\shiro-core-1.3.2.jar;C:\Users\amdin\.m2\repository\commons-beanutils\commons-beanutils\1.8.3\commons-beanutils-1.8.3.jar;C:\Users\amdin\.m2\repository\org\apache\shiro\shiro-web\1.3.2\shiro-web-1.3.2.jar;C:\Users\amdin\.m2\repository\com\github\pagehelper\pagehelper\5.1.2\pagehelper-5.1.2.jar;C:\Users\amdin\.m2\repository\com\github\jsqlparser\jsqlparser\1.0\jsqlparser-1.0.jar" com.example.kexie.KexieApplication 17:55:12.366 [main] DEBUG org.springframework.boot.context.logging.ClasspathLoggingApplicationListener - Application failed to start with classpath: [file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/charsets.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/deploy.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/ext/access-bridge-64.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/ext/cldrdata.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/ext/dnsns.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/ext/jaccess.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/ext/jfxrt.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/ext/localedata.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/ext/nashorn.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/ext/sunec.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/ext/sunjce_provider.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/ext/sunmscapi.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/ext/sunpkcs11.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/ext/zipfs.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/javaws.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/jce.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/jfr.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/jfxswt.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/jsse.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/management-agent.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/plugin.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/resources.jar, file:/C:/Program%20Files/Java/jdk1.8.0_121/jre/lib/rt.jar, file:/E:/maven/kexie/target/classes/, file:/C:/Users/amdin/.m2/repository/org/springframework/boot/spring-boot-starter-thymeleaf/2.1.7.RELEASE/spring-boot-starter-thymeleaf-2.1.7.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/boot/spring-boot-starter/2.1.7.RELEASE/spring-boot-starter-2.1.7.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/boot/spring-boot/2.1.7.RELEASE/spring-boot-2.1.7.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/2.1.7.RELEASE/spring-boot-autoconfigure-2.1.7.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/boot/spring-boot-starter-logging/2.1.7.RELEASE/spring-boot-starter-logging-2.1.7.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar, file:/C:/Users/amdin/.m2/repository/ch/qos/logback/logback-core/1.2.3/logback-core-1.2.3.jar, file:/C:/Users/amdin/.m2/repository/org/apache/logging/log4j/log4j-to-slf4j/2.11.2/log4j-to-slf4j-2.11.2.jar, file:/C:/Users/amdin/.m2/repository/org/apache/logging/log4j/log4j-api/2.11.2/log4j-api-2.11.2.jar, file:/C:/Users/amdin/.m2/repository/org/slf4j/jul-to-slf4j/1.7.26/jul-to-slf4j-1.7.26.jar, file:/C:/Users/amdin/.m2/repository/javax/annotation/javax.annotation-api/1.3.2/javax.annotation-api-1.3.2.jar, file:/C:/Users/amdin/.m2/repository/org/yaml/snakeyaml/1.23/snakeyaml-1.23.jar, file:/C:/Users/amdin/.m2/repository/org/thymeleaf/thymeleaf-spring5/3.0.11.RELEASE/thymeleaf-spring5-3.0.11.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/thymeleaf/thymeleaf/3.0.11.RELEASE/thymeleaf-3.0.11.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/attoparser/attoparser/2.0.5.RELEASE/attoparser-2.0.5.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/unbescape/unbescape/1.1.6.RELEASE/unbescape-1.1.6.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/thymeleaf/extras/thymeleaf-extras-java8time/3.0.4.RELEASE/thymeleaf-extras-java8time-3.0.4.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/mybatis/spring/boot/mybatis-spring-boot-starter/2.0.1/mybatis-spring-boot-starter-2.0.1.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/boot/spring-boot-starter-jdbc/2.1.7.RELEASE/spring-boot-starter-jdbc-2.1.7.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/com/zaxxer/HikariCP/3.2.0/HikariCP-3.2.0.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/spring-jdbc/5.1.9.RELEASE/spring-jdbc-5.1.9.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/spring-tx/5.1.9.RELEASE/spring-tx-5.1.9.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/mybatis/spring/boot/mybatis-spring-boot-autoconfigure/2.0.1/mybatis-spring-boot-autoconfigure-2.0.1.jar, file:/C:/Users/amdin/.m2/repository/org/mybatis/mybatis/3.5.1/mybatis-3.5.1.jar, file:/C:/Users/amdin/.m2/repository/org/mybatis/mybatis-spring/2.0.1/mybatis-spring-2.0.1.jar, file:/C:/Users/amdin/.m2/repository/com/alibaba/druid/1.1.16/druid-1.1.16.jar, file:/C:/Users/amdin/.m2/repository/com/microsoft/sqlserver/mssql-jdbc/6.4.0.jre8/mssql-jdbc-6.4.0.jre8.jar, file:/C:/Users/amdin/.m2/repository/org/mybatis/generator/mybatis-generator-core/1.3.7/mybatis-generator-core-1.3.7.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/boot/spring-boot-starter-web/2.1.7.RELEASE/spring-boot-starter-web-2.1.7.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/boot/spring-boot-starter-json/2.1.7.RELEASE/spring-boot-starter-json-2.1.7.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.9.9/jackson-datatype-jdk8-2.9.9.jar, file:/C:/Users/amdin/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.9.9/jackson-datatype-jsr310-2.9.9.jar, file:/C:/Users/amdin/.m2/repository/com/fasterxml/jackson/module/jackson-module-parameter-names/2.9.9/jackson-module-parameter-names-2.9.9.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/2.1.7.RELEASE/spring-boot-starter-tomcat-2.1.7.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.22/tomcat-embed-core-9.0.22.jar, file:/C:/Users/amdin/.m2/repository/org/apache/tomcat/embed/tomcat-embed-el/9.0.22/tomcat-embed-el-9.0.22.jar, file:/C:/Users/amdin/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/9.0.22/tomcat-embed-websocket-9.0.22.jar, file:/C:/Users/amdin/.m2/repository/org/hibernate/validator/hibernate-validator/6.0.17.Final/hibernate-validator-6.0.17.Final.jar, file:/C:/Users/amdin/.m2/repository/javax/validation/validation-api/2.0.1.Final/validation-api-2.0.1.Final.jar, file:/C:/Users/amdin/.m2/repository/org/jboss/logging/jboss-logging/3.3.2.Final/jboss-logging-3.3.2.Final.jar, file:/C:/Users/amdin/.m2/repository/com/fasterxml/classmate/1.4.0/classmate-1.4.0.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/spring-web/5.1.9.RELEASE/spring-web-5.1.9.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/spring-beans/5.1.9.RELEASE/spring-beans-5.1.9.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/spring-webmvc/5.1.9.RELEASE/spring-webmvc-5.1.9.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/spring-aop/5.1.9.RELEASE/spring-aop-5.1.9.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/spring-context/5.1.9.RELEASE/spring-context-5.1.9.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/spring-expression/5.1.9.RELEASE/spring-expression-5.1.9.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/junit/junit/4.12/junit-4.12.jar, file:/C:/Users/amdin/.m2/repository/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/spring-core/5.1.9.RELEASE/spring-core-5.1.9.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/springframework/spring-jcl/5.1.9.RELEASE/spring-jcl-5.1.9.RELEASE.jar, file:/C:/Users/amdin/.m2/repository/org/slf4j/slf4j-api/1.7.26/slf4j-api-1.7.26.jar, file:/C:/Users/amdin/.m2/repository/org/slf4j/log4j-over-slf4j/1.7.26/log4j-over-slf4j-1.7.26.jar, file:/C:/Users/amdin/.m2/repository/org/slf4j/jcl-over-slf4j/1.7.26/jcl-over-slf4j-1.7.26.jar, file:/C:/Users/amdin/.m2/repository/com/github/pagehelper/pagehelper-spring-boot-starter/1.2.5/pagehelper-spring-boot-starter-1.2.5.jar, file:/C:/Users/amdin/.m2/repository/com/github/pagehelper/pagehelper-spring-boot-autoconfigure/1.2.5/pagehelper-spring-boot-autoconfigure-1.2.5.jar, file:/C:/Users/amdin/.m2/repository/org/apache/commons/commons-lang3/3.9/commons-lang3-3.9.jar, file:/C:/Users/amdin/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.9.8/jackson-databind-2.9.8.jar, file:/C:/Users/amdin/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.9.0/jackson-annotations-2.9.0.jar, file:/C:/Users/amdin/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.9.9/jackson-core-2.9.9.jar, file:/C:/Users/amdin/.m2/repository/org/apache/httpcomponents/httpclient/4.5.8/httpclient-4.5.8.jar, file:/C:/Users/amdin/.m2/repository/org/json/json/20180813/json-20180813.jar, file:/C:/Users/amdin/.m2/repository/commons-fileupload/commons-fileupload/1.4/commons-fileupload-1.4.jar, file:/C:/Users/amdin/.m2/repository/commons-io/commons-io/2.2/commons-io-2.2.jar, file:/C:/Users/amdin/.m2/repository/org/bouncycastle/bcprov-jdk15on/1.61/bcprov-jdk15on-1.61.jar, file:/C:/Users/amdin/.m2/repository/commons-codec/commons-codec/1.12/commons-codec-1.12.jar, file:/C:/Users/amdin/.m2/repository/jdom/jdom/1.0/jdom-1.0.jar, file:/C:/Users/amdin/.m2/repository/com/google/code/gson/gson/2.8.5/gson-2.8.5.jar, file:/C:/Users/amdin/.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar, file:/C:/Users/amdin/.m2/repository/dom4j/dom4j/1.6.1/dom4j-1.6.1.jar, file:/C:/Users/amdin/.m2/repository/xml-apis/xml-apis/1.4.01/xml-apis-1.4.01.jar, file:/C:/Users/amdin/.m2/repository/org/apache/httpcomponents/httpcore/4.4.11/httpcore-4.4.11.jar, file:/C:/Users/amdin/.m2/repository/org/apache/httpcomponents/httpmime/4.5.8/httpmime-4.5.8.jar, file:/C:/Users/amdin/.m2/repository/com/googlecode/json-simple/json-simple/1.1.1/json-simple-1.1.1.jar, file:/C:/Users/amdin/.m2/repository/org/apache/shiro/shiro-spring/1.3.2/shiro-spring-1.3.2.jar, file:/C:/Users/amdin/.m2/repository/org/apache/shiro/shiro-core/1.3.2/shiro-core-1.3.2.jar, file:/C:/Users/amdin/.m2/repository/commons-beanutils/commons-beanutils/1.8.3/commons-beanutils-1.8.3.jar, file:/C:/Users/amdin/.m2/repository/org/apache/shiro/shiro-web/1.3.2/shiro-web-1.3.2.jar, file:/C:/Users/amdin/.m2/repository/com/github/pagehelper/pagehelper/5.1.2/pagehelper-5.1.2.jar, file:/C:/Users/amdin/.m2/repository/com/github/jsqlparser/jsqlparser/1.0/jsqlparser-1.0.jar, file:/E:/IDEA2018.2.3/lib/idea_rt.jar] 17:55:12.492 [background-preinit] DEBUG org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator - Loaded expression factory via original TCCL 17:55:12.497 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator as ValidatorFactory-scoped message interpolator. 17:55:12.498 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.resolver.TraverseAllTraversableResolver as ValidatorFactory-scoped traversable resolver. 17:55:12.498 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.util.ExecutableParameterNameProvider as ValidatorFactory-scoped parameter name provider. 17:55:12.498 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.DefaultClockProvider as ValidatorFactory-scoped clock provider. 17:55:12.498 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.scripting.DefaultScriptEvaluatorFactory as ValidatorFactory-scoped script evaluator factory. 17:55:12.755 [main] ERROR org.springframework.boot.SpringApplication - Application run failed java.lang.IllegalStateException: Failed to load property source from location 'classpath:/application.yml' at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:525) at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadForFileExtension(ConfigFileApplicationListener.java:474) at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:444) at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$null$6(ConfigFileApplicationListener.java:426) at java.lang.Iterable.forEach(Iterable.java:75) at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$load$7(ConfigFileApplicationListener.java:426) at java.lang.Iterable.forEach(Iterable.java:75) at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:423) at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:322) at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:203) at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:187) at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:177) at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:165) at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:76) at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53) at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:341) at org.springframework.boot.SpringApplication.run(SpringApplication.java:305) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1214) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1203) at com.example.kexie.KexieApplication.main(KexieApplication.java:14) Caused by: org.yaml.snakeyaml.error.YAMLException: java.nio.charset.MalformedInputException: Input length = 1 at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:218) at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:176) at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:171) at org.yaml.snakeyaml.reader.StreamReader.peek(StreamReader.java:126) at org.yaml.snakeyaml.scanner.ScannerImpl.scanToNextToken(ScannerImpl.java:1177) at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:287) at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227) at org.yaml.snakeyaml.parser.ParserImpl$ParseImplicitDocumentStart.produce(ParserImpl.java:195) at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158) at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:148) at org.yaml.snakeyaml.composer.Composer.checkNode(Composer.java:72) at org.yaml.snakeyaml.constructor.BaseConstructor.checkData(BaseConstructor.java:112) at org.yaml.snakeyaml.Yaml$1.hasNext(Yaml.java:542) at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:160) at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:134) at org.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:75) at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50) at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadDocuments(ConfigFileApplicationListener.java:543) at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:498) ... 23 common frames omitted Caused by: java.nio.charset.MalformedInputException: Input length = 1 at java.nio.charset.CoderResult.throwException(CoderResult.java:281) at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339) at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178) at java.io.InputStreamReader.read(InputStreamReader.java:184) at org.yaml.snakeyaml.reader.UnicodeReader.read(UnicodeReader.java:125) at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:183) ... 41 common frames omitted Process finished with exit code 1 ``` ## yml文件 

spring boot打开网页错误500，错误信息如下，怎么解决？

2019-04-26 12:59:31.688 INFO 11188 --- [p-nio-80-exec-2] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet' 2019-04-26 12:59:31.688 INFO 11188 --- [p-nio-80-exec-2] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet' 2019-04-26 12:59:31.693 INFO 11188 --- [p-nio-80-exec-2] o.s.web.servlet.DispatcherServlet : Completed initialization in 5 ms 2019-04-26 12:59:31.994 ERROR 11188 --- [p-nio-80-exec-2] org.thymeleaf.TemplateEngine : [THYMELEAF][http-nio-80-exec-2] Exception processing template "index": An error happened during template parsing (template: "class path resource [templates/index.html]") org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/index.html]") 2019-04-26 12:59:32.001 ERROR 11188 --- [p-nio-80-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/index.html]")] with root cause org.springframework.expression.spel.SpelEvaluationException: EL1012E: Cannot index into a null value ``` <!DOCTYPE html> <html lang="zh" xmlns:th="http://www.thymeleaf.org"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta name="renderer" content="webkit"> <title>车联网监测系统</title> <meta name="keywords" content="车联网监测系统"> <meta name="description" content="车联网监测系统"> <!--[if lt IE 9]> <meta http-equiv="refresh" content="0;ie.html"/> <![endif]--> </head> <link th:href="@{/css/bootstrap.css}" rel="stylesheet"/> <link th:href="@{/css/base.css}" rel="stylesheet"/> <link th:href="@{/css/index.css}" rel="stylesheet"/> <style> .t_title { width: 100%; height: 100%; text-align: center; font-size: 2.5em; line-height: 80px; color: #fff; } #chart_map { cursor: pointer; } .t_show { position: absolute; top: 0; right: 0; border-radius: 2px; background: #2C58A6; padding: 2px 5px; color: #fff; cursor: pointer; } </style> <body> <div> <div class="header"> <div class="bg_header"> <div class="header_nav fl t_title"> 车辆运行监测系统 </div> </div> </div> <div class="data_content"> <div class="data_main" > <div class="main_left fl" style="height: 610px;" > <div class="left_1 " style="height: 100%;" > <!--左上边框--> <div class="t_line_box"> <i class="t_l_line"></i> <i class="l_t_line"></i> </div> <!--右上边框--> <div class="t_line_box"> <i class="t_r_line"></i> <i class="r_t_line"></i> </div> <!--左下边框--> <div class="t_line_box"> <i class="l_b_line"></i> <i class="b_l_line"></i> </div> <!--右下边框--> <div class="t_line_box"> <i class="r_b_line"></i> <i class="b_r_line"></i> </div> <div class="main_title"> <img src="img/t_1.png" alt=""> 所有车辆信息 </div> <div style="width:100%;height: 100%;"> <div style="width: 100%;margin-top: 20%;text-align: center;" th:each="data:${list}" > <a th:onclick="'javascript:select('+${data.id}+');'"> <p style="color: #0BFA00;font-size: 20px;" >[[${data.name}]]</p></a> </div> </div> </div> </div> <div class="main_center fl"> <div class="center_text"> <!--左上边框--> <div class="t_line_box"> <i class="t_l_line"></i> <i class="l_t_line"></i> </div> <!--右上边框--> <div class="t_line_box"> <i class="t_r_line"></i> <i class="r_t_line"></i> </div> <!--左下边框--> <div class="t_line_box"> <i class="l_b_line"></i> <i class="b_l_line"></i> </div> <!--右下边框--> <div class="t_line_box"> <i class="r_b_line"></i> <i class="b_r_line"></i> </div> <div class="main_title"> <img src="img/t_3.png" alt="">车辆运行轨迹图 </div> <div id="chart_map" style="width:100%;height:610px;"></div> </div> </div> <div class="main_right fr" style="height: 610px;"> <div class="right_1" style="height: 100%;"> <!--左上边框--> <div class="t_line_box"> <i class="t_l_line"></i> <i class="l_t_line"></i> </div> <!--右上边框--> <div class="t_line_box"> <i class="t_r_line"></i> <i class="r_t_line"></i> </div> <!--左下边框--> <div class="t_line_box"> <i class="l_b_line"></i> <i class="b_l_line"></i> </div> <!--右下边框--> <div class="t_line_box"> <i class="r_b_line"></i> <i class="b_r_line"></i> </div> <div class="main_title"> <img src="img/t_4.png" alt="">车辆运行信息 </div> <div id="chart_3" class="echart t_btn7" style="width:100%;height: 100%;text-align: center;font-size: 13px;color: #0BFA00;" > <p><span style="color: white">急转弯次数：</span><span id="sharpturntime">[[${list[0].sharpturntime}]]</span> <span style="color: white">ESC防侧翻是否被激活：</span><span id="escantirollover">[[${list[0].escantirollover}]]</span></p> <p><span style="color: white">ESC方向控制是否激活：</span><span id="escdirectionalcontrol">[[${list[0].escdirectionalcontrol}]]</span><span style="color: white">侧向加速度：</span><span id="lateralacceleration">[[${list[0].lateralacceleration}]]</span></p> <p><span style="color: white">纵向加速度：</span><span id="forwardacceleration">[[${list[0].forwardacceleration}]]</span><span style="color: white">制动踏板深度：</span><span id="footstepdepth">[[${list[0].footstepdepth}]]</span></p> <p><span style="color: white">与前车距离：</span><span id="distancefrontcar">[[${list[0].distancefrontcar}]]</span><span style="color: white">前车速度：</span><span id="frontcarspeed">[[${list[0].frontcarspeed}]]</span></p> <p><span style="color: white">与前车碰撞时间：</span><span id="collidetime">[[${list[0].collidetime}]]</span><span style="color: white">acc是否被激活：</span><span id="accflag">[[${list[0].accflag}]]</span></p> <p><span style="color: white">aebss给ebs发制动信号：</span><span id="aebstoebs">[[${list[0].aebstoebs}]]</span><span style="color: white">车道压线次数：</span><span id="lanepressline">[[${list[0].lanepressline}]]</span></p> <p><span style="color: white">显示是否换挡：</span><span id="shift">[[${list[0].shift}]]</span><span style="color: white">车辆行驶高度：</span><span id="carheight">[[${list[0].carheight}]]</span></p> <p><span style="color: white">牵引车重：</span><span id="carweight">[[${list[0].carweight}]]</span><span style="color: white">挂车防侧翻功能是否被启动：</span><span id="rss">[[${list[0].rss}]]</span></p> <p><span style="color: white">车速：</span><span id="carspeed">[[${list[0].carspeed}]]</span></p> <p><span style="color: white">车辆载重：</span><span id="carload">[[${list[0].carload}]]</span></p> <p><span style="color: white">货物重量：</span><span id="cargoweight">[[${list[0].cargoweight}]]</span></p> <p><span style="color: white">挂车是否被锁定：</span><span id="islock">[[${list[0].islock}]]</span></p> <p><span style="color: white">tesbs是否正常(红黄绿)：</span><span id="tebsnormal">[[${list[0].tebsnormal}]]</span></p> <p><span style="color: white">tebs错误代码：</span><span id="tebserr">[[${list[0].tebserr}]]</span></p> <p><span style="color: white">胎温胎压：</span><span id="temppre">[[${list[0].temppre}]]</span></p> <p><span style="color: white">车尾防撞系统是否被激活：</span><span id="trailcrashproof">[[${list[0].trailcrashproof}]]</span></p> <p><span style="color: white">紧急刹车提醒是否被激活：</span><span id="brakewarn">[[${list[0].brakewarn}]]</span></p> <p><span style="color: white">车辆保修提醒：</span><span id="repairremind">[[${list[0].repairremind}]]</span></p> </div> </div> </div> </div> </div> </div> <script src="../static/js/jquery.min.js" th:src="@{/js/jquery.min.js}"></script> <script th:src="@{js/bootstrap.min.js}"></script> <script th:src="@{js/common.js}"></script> <script th:src="@{js/echarts.min.js}"></script> <script th:src="@{js/dataTool.js}"></script> <script th:src="@{js/index.js}"></script> <script th:src="@{js/china.js}"></script> <script th:src="@{js/hunan.js}"></script> <!--<script>--> <!--// var list = [[${list}]];--> <!--function rawGnssList () {--> <!--$.ajax({--> <!--cache: true,--> <!--type: "POST",--> <!--url: "/abc",--> <!--success: function (ret) {--> <!--alert(ret);--> <!--var data = JSON.stringify(ret);--> <!--alert(dat[0].iD);--> <!--}--> <!--});--> <!--}--> <!--</script>--> <script th:inline="javascript"> function select(id){ var list = [[${list}]]; var carinfo1 = list[id-1]; document.getElementById("cargoweight").innerHTML=carinfo1.cargoweight; document.getElementById("islock").innerHTML=carinfo1.islock; document.getElementById("tebsnormal").innerHTML=carinfo1.tebsnormal; document.getElementById("tebserr").innerHTML=carinfo1.tebserr; document.getElementById("temppre").innerHTML=carinfo1.temppre; document.getElementById("trailcrashproof").innerHTML=carinfo1.trailcrashproof; document.getElementById("brakewarn").innerHTML=carinfo1.brakewarn; document.getElementById("repairremind").innerHTML=carinfo1.repairremind; document.getElementById("sharpturntime").innerHTML=carinfo1.sharpturntime; document.getElementById("escantirollover").innerHTML=carinfo1.escantirollover; document.getElementById("escdirectionalcontrol").innerHTML=carinfo1.escdirectionalcontrol; document.getElementById("lateralacceleration").innerHTML=carinfo1.lateralacceleration; document.getElementById("forwardacceleration").innerHTML=carinfo1.forwardacceleration; document.getElementById("footstepdepth").innerHTML=carinfo1.footstepdepth; document.getElementById("distancefrontcar").innerHTML=carinfo1.distancefrontcar; document.getElementById("frontcarspeed").innerHTML=carinfo1.frontcarspeed; document.getElementById("collidetime").innerHTML=carinfo1.collidetime; document.getElementById("accflag").innerHTML=carinfo1.accflag; document.getElementById("aebstoebs").innerHTML=carinfo1.aebstoebs; document.getElementById("lanepressline").innerHTML=carinfo1.lanepressline; document.getElementById("shift").innerHTML=carinfo1.shift; document.getElementById("carheight").innerHTML=carinfo1.carheight; document.getElementById("carweight").innerHTML=carinfo1.carweight; document.getElementById("rss").innerHTML=carinfo1.rss; document.getElementById("carspeed").innerHTML=carinfo1.carspeed; document.getElementById("carload").innerHTML=carinfo1.carload; document.getElementById("laterala").innerHTML=carinfo1.laterala; } </script> </body> </html> ```

thymeleaf th:text的值没有数据时报错问题

# thymeleaf th:text的值没有数据时报错问题 求解 怎么让th:text没有数据传过来时不报错

springboot配置thymeleaf

application.properties: ``` #thymeleaf spring.thymeleaf.prefix=classpath:/templates/ spring.thymeleaf.suffix=.html spring.thymeleaf.mode=HTML spring.thymeleaf.encoding=UTF-8 spring.thymeleaf.contentType=text/html spring.thymeleaf.cache=false ``` 视图返回： ``` /** * * @param registry */ @Override public void addViewControllers(ViewControllerRegistry registry) { registry.addViewController("/user/login").setViewName("canal/user/login"); registry.addViewController("/user/index").setViewName("canal/user/user_index"); } ``` 结构目录：  报警告： ``` 2018-08-06 15:46:12.829 INFO 4416 --- [ main] o.s.w.s.h.SimpleUrlHandlerMapping : Mapped URL path [/user/login] onto handler of type [class org.springframework.web.servlet.mvc.ParameterizableViewController] 2018-08-06 15:46:12.829 INFO 4416 --- [ main] o.s.w.s.h.SimpleUrlHandlerMapping : Mapped URL path [/user/index] onto handler of type [class org.springframework.web.servlet.mvc.ParameterizableViewController] 2018-08-06 15:46:12.838 INFO 4416 --- [ main] o.s.w.s.h.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2018-08-06 15:46:12.839 INFO 4416 --- [ main] o.s.w.s.h.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2018-08-06 15:46:12.839 INFO 4416 --- [ main] o.s.w.s.h.SimpleUrlHandlerMapping : Mapped URL path [/static/canal/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2018-08-06 15:46:12.893 WARN 4416 --- [ main] ion$DefaultTemplateResolverConfiguration : Cannot find template location: classpath:/templates/ (please add some templates or check your Thymeleaf configuration) 2018-08-06 15:46:13.167 INFO 4416 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup 2018-08-06 15:46:13.169 INFO 4416 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'druidDataSource' has been autodetected for JMX exposure 2018-08-06 15:46:13.178 INFO 4416 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Located MBean 'druidDataSource': registering with JMX server as MBean [com.alibaba.druid.pool:name=druidDataSource,type=DruidDataSource] 2018-08-06 15:46:13.231 INFO 4416 --- [ main] o.s.b.w.e.t.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path '/CANAL' 2018-08-06 15:46:13.237 INFO 4416 --- [ main] c.Application : Started Application in 3.552 seconds (JVM running for 4.212) ``` 访问： localhost:8080/CANAL/user/login 出现： ``` 2018-08-06 16:03:36.778 ERROR 4416 --- [nio-8080-exec-2] o.a.c.c.C.[.[.[.[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [/CANAL] threw exception [Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: Error resolving template "canal/user/login", template might not exist or might not be accessible by any of the configured Template Resolvers] with root cause org.thymeleaf.exceptions.TemplateInputException: Error resolving template "canal/user/login", template might not exist or might not be accessible by any of the configured Template Resolvers at org.thymeleaf.engine.TemplateManager.resolveTemplate(TemplateManager.java:870) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:607) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:354) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:187) ~[thymeleaf-spring5-3.0.9.RELEASE.jar:3.0.9.RELEASE] at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1325) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1069) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE] ```

IDEA环境Springboot2.2.1进行Web开发，自定义pesonal.yml文件读取不到value值

先看下文件位置：  文件内容如下： ```yaml jwt: # 加密私钥 secret: bensu[sentiment] # header名称 header: token # 有效时长7天（7*24*60*60） expire: 604800 ``` 项目依赖关系如下： ```xml <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>org.thymeleaf</groupId> <artifactId>thymeleaf</artifactId> </dependency> <!-- SpringBoot Web 依赖 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>2.1.1</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> <optional>true</optional> </dependency> <!--JSP依赖--> <!--dependency>--> <!--<groupId>org.apache.tomcat.embed</groupId>--> <!--<artifactId>tomcat-embed-jasper</artifactId>--> <!--</dependency>--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> <exclusions> <exclusion> <groupId>org.junit.vintage</groupId> <artifactId>junit-vintage-engine</artifactId> </exclusion> </exclusions> </dependency> <!-- 数据库访问控制依赖 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> <dependency> <groupId>org.webjars</groupId> <artifactId>bootstrap</artifactId> <version>4.4.1</version> </dependency> <!-- https://mvnrepository.com/artifact/org.webjars.bower/jquery --> <dependency> <groupId>org.webjars.bower</groupId> <artifactId>jquery</artifactId> <version>3.4.1</version> </dependency> <dependency> <groupId>org.fusesource</groupId> <artifactId>sigar</artifactId> <version>1.6.4</version> </dependency> <dependency> <groupId>io.jsonwebtoken</groupId> <artifactId>jjwt</artifactId> <version>0.9.0</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.4</version> </dependency> </dependencies> ``` 绑定实体类代码如下： ```java @Component @PropertySource("classpath:personal.yml") @ConfigurationProperties(prefix = "jwt") public class TokenDomain { // header名称 @Value(value = "${header}") private String header; // 密钥 @Value(value = "${secret}") private String secret; // 有效时长 @Value(value = "${expire}") private long expire; public String getHeader() { return header; } public void setHeader(String header) { this.header = header; } public String getSecret() { return secret; } public void setSecret(String secret) { this.secret = secret; } public long getExpire() { return expire; } public void setExpire(long expire) { this.expire = expire; } } ``` 调用该实体类代码如下： ```java @Autowired private TokenDomain tokenDomain; /** * 根据身份ID标识，生成Token * @param userId 根据身份ID标识 * @param pwd 密码 * @return Token 字串 */ public String createToken(String userId,String pwd){ //过期时间,精确到毫秒 Date expireDate = new Date(new Date().getTime() + tokenDomain.getExpire()); // 生成token字串 String token =Jwts.builder() .setHeaderParam("typ","JWT") .setHeaderParam("alg","HS256") .claim("userId",userId) .claim("pwd",pwd) .setSubject(userId+pwd) .setIssuedAt(new Date()) .setExpiration(expireDate) .signWith(SignatureAlgorithm.ES512, tokenDomain.getSecret()) .compact(); return token; } ``` 实体类在Spring测试类中可正常读取： ```java @Autowired TokenDomain token; @Test void getPersonal(){ System.out.println(token); System.out.println(token.getHeader()); System.out.println(token.getSecret()); System.out.println(token.getExpire()); } ``` 测试类返回结果如下：  但是，业务逻辑类一直都无法正常读取内容，domain一直为null  请高手指点迷津。

在Spring Boot项目中，Thymeleaf如何使用消息表达式（#{}）?

``` <select class="col-sm-2 form-control" id="searchPost"> <option value="">请选择</option> <option th:value="#{post.java.value}" th:text="#{post.java.name}"></option> <option th:value="#{post.c.value}" th:text="#{post.c.name}"></option> <option th:value="#{post.oracle.value}" th:text="#{post.oracle.name}"></option> <option th:value="#{post.test.value}" th:text="#{post.test.name}"></option> </select> ``` 引用我resources/templates下的.properties文件中的变量。 但是结果却不能正常显示：`<option value="??post.java.value_zh_CN??">??post.java.name_zh_CN??</option>`

使用Thymeleaf时标签的th:text值不替换,但js是能获取到值的时为什么?

在做一个账号被顶号/被冻结返回登录页面的拦截器, 写了一个返回登录页面的controller,想在返回时候同时提示一下账号退出的原因. 可是从controller传过去的属性在页面上没办法显示.不知道是什么原因. 我的controller代码: ```java @Controller public class RedirectController { @RequestMapping("/backToLogin") public ModelAndView backToLogin() { ModelAndView modelAndView=new ModelAndView(); modelAndView.setViewName("backToLogin"); modelAndView.addObject("msg","后端传值123"); return modelAndView; } } ``` 我的模板页面: ```html <!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml1-strict-thymeleaf-4.dtd"> <html lang="en" xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"> <head> <meta charset="UTF-8"> <title>重新登录</title> <script> window.onload=function(){ //alert("账号已退出,请重新登录!"); alert("${msg}"); //window.location.href="../dist/index.html"; } </script> </head> <body> <p th:text="${msg}">P标签默认内容</p> <input value="input默认" th:value="${msg}" /> </body> </html> ``` 启动项目之后,请求/backToLogin页面,显示如下   很奇怪,是我哪里写的不对吗?我看官方的例子也是这么写的.... 我的JS里写的alert那里,是获取到后端传过来的msg的,可是标签里面默认的值并不替换是为什么啊... html标签那里xmlns那里也都写了.之前另一个小项目就是这样写的也没什么问题.... 烦请大佬帮我看看 感谢! 配置文件中,spring-thymeleaf相关的内容 ``` spring: # 环境 dev|test|prod profiles: active: dev servlet: multipart: max-file-size: 300MB max-request-size: 1000MB enabled: true jmx: enabled: false thymeleaf: suffix: .html mode: HTML5 encoding: UTF-8 cache: false prefix: classpath:/templates/ mvc: static-path-pattern: /** resources: chain: strategy: content: enabled: true paths: /** freemarker: suffix: .html request-context-attribute: request ``` 找到原因了. 今天没传参试了一下,发现报的错是freemarker的错...发现之前项目里加了freemarker的依赖,配置文件里的suffix也是.html.所以freemarker生效了,thymeleaf不生效... 把suffix改成了.ftl就好了!!!当时依赖和配置文件是从前一个项目搬过来的没仔细看...疏忽了疏忽了...

springboot -- thymeleaf 前端拿不到后台的数据是为什么？

 ++++++++++ 第一次用thymeleaf，依赖是有导入的。 不知道为什么会这样，请大神指教

相见恨晚的超实用网站

相见恨晚的超实用网站 持续更新中。。。

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