Question

我正在尝试使用百万美元模板引擎配置spring邮件，但是有一个错误，我无法弄清楚为什么会发生。我已经看过这个问题的各种主题，但是所有给出解决它的建议似乎都适合我的项目。

问题在于尝试使用ServletContextTemplateResolver解析Context。

我的配置是：

@Bean 
public TemplateResolver webTemplateResolver () { 
    final TemplateResolver templateResolver = new ServletContextTemplateResolver(); 
    templateResolver.setPrefix("/WEB-INF/views/"); 
    templateResolver.setSuffix(".html"); 
    templateResolver.setTemplateMode("HTML5"); 
    templateResolver.setOrder(2); 
    return templateResolver; 
}

@Bean 
public TemplateResolver emailTemplateResolver () { 
    TemplateResolver templateResolver = new ClassLoaderTemplateResolver(); 
    templateResolver.setPrefix("mail/"); 
    templateResolver.setSuffix(".html"); 
    templateResolver.setTemplateMode("HTML5"); 
    templateResolver.setOrder(1); 
    return templateResolver; 
} 

@Bean 
public SpringTemplateEngine templateEngine (IMessageResolver messageResolver) { 
    final SpringTemplateEngine templateEngine = new SpringTemplateEngine(); 
    templateEngine.addTemplateResolver(webTemplateResolver()); 
    templateEngine.addTemplateResolver(emailTemplateResolver()); 
    templateEngine.addDialect(new LayoutDialect()); 
    templateEngine.addDialect(new SpringSecurityDialect()); 
    templateEngine.addMessageResolver(messageResolver); 
    return templateEngine; 
}

代码是：

@Transactional(readOnly = true) 
public void sendContactEmail (final String recipientName, final String recipientEmail, final String imageResourceName, final byte[] imageBytes, final String imageContentType, final Locale locale) throws MessagingException 
{ 
    // Prepare the evaluation context 
    final Context ctx = new Context(locale); 
    ctx.setVariable("name", recipientName); 
    ctx.setVariable("subscriptionDate", new Date()); 
    ctx.setVariable("hobbies", Arrays.asList("Cinema", "Sports", "Music")); 
    ctx.setVariable("imageResourceName", imageResourceName); // so that we can reference it from HTML 

    // Prepare message using a Spring helper 
    final MimeMessage mimeMessage = this.mailSender.createMimeMessage(); 
    final MimeMessageHelper message = new MimeMessageHelper(mimeMessage, true, "UTF-8"); // true = multipart 
    message.setSubject("Example HTML email with inline image"); 
    message.setFrom("thymeleaf@example.com"); 
    message.setTo(recipientEmail); 

    // Create the HTML body using Thymeleaf 
    final String htmlContent = this.templateEngine.process("contact.html", ctx);
    message.setText(htmlContent, true); // true = isHtml 

    // Add the inline image, referenced from the HTML code as "cid:${imageResourceName}" 
    final InputStreamSource imageSource = new ByteArrayResource(imageBytes); 
    message.addInline(imageResourceName, imageSource, imageContentType); 

    // Send mail 
    this.mailSender.send(mimeMessage); 
}

最后是错误：

[THYMELEAF][http-bio-8080-exec-8] Exception processing template "contact.html": Resource resolution by ServletContext with org.thymeleaf.resourceresolver.ServletContextResourceResolver can only be performed when context implements org.thymeleaf.context.IWebContext [current context: org.thymeleaf.context.Context] 
Exception handled by GlobalExceptionHandler 
org.thymeleaf.exceptions.TemplateProcessingException: Resource resolution by ServletContext with org.thymeleaf.resourceresolver.ServletContextResourceResolver can only be performed when context implements org.thymeleaf.context.IWebContext [current context: org.thymeleaf.context.Context] 
        at org.thymeleaf.resourceresolver.ServletContextResourceResolver.getResourceAsStream(ServletContextResourceResolver.java:78) 
        at org.thymeleaf.TemplateRepository.getTemplate(TemplateRepository.java:221) 
        at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1104) 
        at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1060) 
        at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1011) 
        at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:924) 
        at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:898) 
        at com.proeza.core.service.MailService.sendContactEmail(MailService.java:47) 
        at com.proeza.core.service.MailService$$FastClassBySpringCGLIB$$f139c878.invoke(<generated>) 
        at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) 
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:711) 
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) 
        at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98) 
        at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262) 
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) 
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
        at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:644) 
        at com.proeza.core.service.MailService$$EnhancerBySpringCGLIB$$42cabd9f.sendContactEmail(<generated>) 
        at com.proeza.sgs.web.controller.RegisterController.register(RegisterController.java:69) 
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:606) 
        at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) 
        at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) 
        at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) 
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) 
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:690) 
        at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) 
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945) 
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876) 
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) 
        at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863) 
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) 
        at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) 
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) 
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108) 
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) 
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) 
        at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) 
        at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
        at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
        at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
        at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
        at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
        at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
        at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
        at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
        at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:105) 
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
        at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:57) 
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
        at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
        at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50) 
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108) 
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) 
        at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) 
        at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) 
        at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344) 
        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261) 
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) 
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) 
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) 
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) 
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) 
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) 
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) 
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) 
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
        at java.lang.Thread.run(Thread.java:744)

希望有人可以提供帮助。提前致谢。

问候！

Answer 1

好的，调试百里香我可以找到问题。告诉引擎解析模板的方法有什么问题。这一行：

// Create the HTML body using Thymeleaf 
final String htmlContent = this.templateEngine.process("contact.html", ctx);

由于旋转变压器是以这种方式配置的

templateResolver.setSuffix(".html");

它正在尝试找到一个名为“contant.html.html”的模板，因此找不到它会导致明显的原因。

以这种方式处理模板：

// Create the HTML body using Thymeleaf 
final String htmlContent = this.templateEngine.process("contact", ctx); //Note .html not present

appaciont完美无缺。

奇怪的是，百万美元文档中的示例是否具有html结果，但我已经尝试了它并且工作正常。

百里香的版本可以造成这种差异吗？

2.1.3.RELEASE vs 2.1.4.RELEASE

Reagards。

Thymeleaf Spring Mail上下文错误

1 个答案: