template might not exist or might not be accessible by any of the configured Template Resolvers

距离上一篇文章已经很长时间了，最近太忙碌了，今天发布spring boot遇到一个问题，找了好久才找到解决办法，今天贴出来和大家一起分享下，首先看错误信息

 HTTP Status 500 - Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: Error resolving template "/error/error", template might not exist or might not be accessible by any of the configured Template Resolvers

 type Exception report

 message Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: Error resolving template "/error/error", template might not exist or might not be accessible by any of the configured Template Resolvers

 description The server encountered an internal error that prevented it from fulfilling this request.

 exception
 org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: Error resolving template "/error/error", template might not exist or might not be accessible by any of the configured Template Resolvers
     org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)
     org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
     org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
     org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
     org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
     org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
     org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105)
     org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
     org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
     org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
     org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:167)
     org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:80)
     org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
     org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

 root cause
 org.thymeleaf.exceptions.TemplateInputException: Error resolving template "/error/error", template might not exist or might not be accessible by any of the configured Template Resolvers
     org.thymeleaf.TemplateRepository.getTemplate(TemplateRepository.java:246)
     org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1104)
     org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1060)
     org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1011)
     org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:335)
     org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:190)
     org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1282)
     org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1037)
     org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:980)
     org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
     org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
     org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
     org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
     org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
     org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
     org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
     org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105)
     org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
     org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
     org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
     org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:167)
     org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:80)
     org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
     org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

 note The full stack trace of the root cause is available in the Apache Tomcat/8.5.11 logs.

 Apache Tomcat/8.5.11

spring boot + thymeleaf 是第一次使用并发布，本地代码没有问题，发布到服务器就出现了上面的错误，看到网上很多人说是配置的问题，尝试了很多种都不行，最后终于发现是有一个很简单的问题造成的，直接看解决办法：

没解决前的controller：

解决口的controller：

然后发布就解决上面的问题了。