SpringMVC：org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.thymeleaf.exceptions.

叙述

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HTTP Status 500 – Internal Server Error
Type Exception Report

Message Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "ServletContext resource [/WEB-INF/templates/index.html]")

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "ServletContext resource [/WEB-INF/templates/index.html]")
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:94)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
Root Cause

org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "ServletContext resource [/WEB-INF/templates/index.html]")
	org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:235)
	org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parseStandalone(AbstractMarkupTemplateParser.java:100)
	org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:649)
	org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098)
	org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072)
	org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:366)
	org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:190)
	org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1394)
	org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1139)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1078)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:961)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:94)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
Root Cause

java.io.FileNotFoundException: Could not open ServletContext resource [/WEB-INF/templates/index.html]
	org.springframework.web.context.support.ServletContextResource.getInputStream(ServletContextResource.java:159)
	org.thymeleaf.spring5.templateresource.SpringResourceTemplateResource.reader(SpringResourceTemplateResource.java:103)
	org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:223)
	org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parseStandalone(AbstractMarkupTemplateParser.java:100)
	org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:649)
	org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098)
	org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072)
	org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:366)
	org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:190)
	org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1394)
	org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1139)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1078)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:961)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:94)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
Note The full stack trace of the root cause is available in the server logs.

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解决

看下idea控制台

1. 发现是没有找到index.html文件。奇了怪了，我明明路径都对的，前缀后缀都有的。
   
   
   

2. 查看该文件，发现是手贱敲快了，文件名不对........