Java TemplateProcessingException之Cannot execute subtraction: operands are "null" and "#1234"
阿新 • • 發佈:2018-12-29
異常產生場景複述:傳送郵件之模板與資料值之間的繫結;
ob.core.logging.LoggingAspect : URI=/api/process/mail/comrise/send/email,X-AUTH=null,X-USER=null, Exception in api.zhanjob.modules.controller.EmailController.sendMail() with cause = 'NULL' and exception = 'Cannot execute subtraction: operands are "null" and "#1234" (e-comrise-postinfo:42)' org.thymeleaf.exceptions.TemplateProcessingException: Cannot execute subtraction: operands are "null" and "#1234" (e-comrise-postinfo:42) at org.thymeleaf.standard.expression.SubtractionExpression.executeSubtraction(SubtractionExpression.java:92) at org.thymeleaf.standard.expression.ComplexExpression.executeComplex(ComplexExpression.java:58) at org.thymeleaf.standard.expression.Expression.execute(Expression.java:107) at org.thymeleaf.standard.expression.Expression.execute(Expression.java:133) at org.thymeleaf.standard.expression.Expression.execute(Expression.java:120) at org.thymeleaf.standard.processor.attr.AbstractStandardTextChildModifierAttrProcessor.getText(AbstractStandardTextChildModifierAttrProcessor.java:68) at org.thymeleaf.processor.attr.AbstractTextChildModifierAttrProcessor.getModifiedChildren(AbstractTextChildModifierAttrProcessor.java:59) at org.thymeleaf.processor.attr.AbstractChildrenModifierAttrProcessor.processAttribute(AbstractChildrenModifierAttrProcessor.java:59) at org.thymeleaf.processor.attr.AbstractAttrProcessor.doProcess(AbstractAttrProcessor.java:87) at org.thymeleaf.processor.AbstractProcessor.process(AbstractProcessor.java:212) at org.thymeleaf.dom.Node.applyNextProcessor(Node.java:1017) at org.thymeleaf.dom.Node.processNode(Node.java:972) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.Document.process(Document.java:93) at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1155) 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 api.zhanjob.modules.service.impl.MailServiceImpl.sendEmail(MailServiceImpl.java:508) at api.zhanjob.modules.service.impl.MailServiceImpl.sendEmail(MailServiceImpl.java:482) at api.zhanjob.modules.service.impl.MailServiceImpl.doSendComriseMail(MailServiceImpl.java:257) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) at com.sun.proxy.$Proxy249.doSendComriseMail(Unknown Source) at api.zhanjob.modules.controller.EmailController.sendMail(EmailController.java:32) at api.zhanjob.modules.controller.EmailController$$FastClassBySpringCGLIB$$719e1c6d.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:85) at com.zhanjob.zjob.core.logging.LoggingAspect.logAround(LoggingAspect.java:105) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:629) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:618) at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673) at api.zhanjob.modules.controller.EmailController$$EnhancerBySpringCGLIB$$d8022af9.sendMail(<generated>) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:110) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:208) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:64) at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292) at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81) at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138) at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135) at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272) at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:332) at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:812) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)
1⃣️郵件模版html中程式碼片段示例:
2⃣️資料值的引數:
3⃣️具體原因:由於在html中繫結引數名為jobTitile,而程式碼中資料引數名為jobtitle,html找不到對應的值,繫結為null,
4⃣️根據提示:Cannot execute subtraction: operands are "null" and "#1234"-> 翻譯無法執行減法:運算元是“null”
5⃣️更改html如下: