《Springboot极简教程》MappingMongoConverter:Failed to convert from type [java.lang.String] to type [long] for value 'null'; nested exception is java.lang.Il

本文涉及的产品
云数据库 MongoDB,独享型 2核8GB
推荐场景:
构建全方位客户视图
简介: Failed to convert from type [java.lang.String] to type [long] for value 'null'; nested exception is java.

Failed to convert from type [java.lang.String] to type [long] for value 'null'; nested exception is java.lang.IllegalArgumentException: A null value cannot be assigned to a primitive type>

org.springframework.core.convert.support.GenericConversionService.assertNotPrimitiveTargetType(GenericConversionService.java:336) org.springframework.core.convert.support.GenericConversionService.handleResult(GenericConversionService.java:329) org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:204) org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:187) org.springframework.data.mongodb.core.convert.MappingMongoConverter.getPotentiallyConvertedSimpleRead(MappingMongoConverter.java:828) org.springframework.data.mongodb.core.convert.MappingMongoConverter.readValue(MappingMongoConverter.java:1216) org.springframework.data.mongodb.core.convert.MappingMongoConverter.access$200(MappingMongoConverter.java:84) org.springframework.data.mongodb.core.convert.MappingMongoConverter$MongoDbPropertyValueProvider.getPropertyValue(MappingMongoConverter.java:1162) org.springframework.data.mongodb.core.convert.MappingMongoConverter$MongoDbPropertyValueProvider.getPropertyValue(MappingMongoConverter.java:1125) org.springframework.data.mapping.model.PersistentEntityParameterValueProvider.getParameterValue(PersistentEntityParameterValueProvider.java:78) org.springframework.data.mapping.model.SpELExpressionParameterValueProvider.getParameterValue(SpELExpressionParameterValueProvider.java:63) org.springframework.data.convert.ReflectionEntityInstantiator.createInstance(ReflectionEntityInstantiator.java:71) org.springframework.data.convert.ClassGeneratingEntityInstantiator.createInstance(ClassGeneratingEntityInstantiator.java:83) org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:257) org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:237) org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:197) org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:193) org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:84) org.springframework.data.mongodb.core.MongoTemplate$ReadDbObjectCallback.doWith(MongoTemplate.java:2313) org.springframework.data.mongodb.core.MongoTemplate.executeFindMultiInternal(MongoTemplate.java:1966) org.springframework.data.mongodb.core.MongoTemplate.doFind(MongoTemplate.java:1784) org.springframework.data.mongodb.core.MongoTemplate.doFind(MongoTemplate.java:1767) org.springframework.data.mongodb.core.MongoTemplate.find(MongoTemplate.java:641) org.springframework.data.mongodb.repository.support.SimpleMongoRepository.findAll(SimpleMongoRepository.java:359) org.springframework.data.mongodb.repository.support.SimpleMongoRepository.findAll(SimpleMongoRepository.java:197) org.springframework.data.mongodb.repository.support.SimpleMongoRepository.findAll(SimpleMongoRepository.java:51) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:497) org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:504) org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:489) org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:461) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:61) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:57) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) com.sun.proxy.$Proxy140.findAll(Unknown Source) com.restfeel.controller.BlogController.listAll(BlogController.kt:39) com.restfeel.controller.BlogController$$FastClassBySpringCGLIB$$d5b73fa9.invoke() org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:721) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:656) com.restfeel.controller.BlogController$$EnhancerBySpringCGLIB$$20ca6215.listAll() sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:497) org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) 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.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:108) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317) org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Thread.java:745)

相关文章
|
6月前
|
前端开发 Java 关系型数据库
基于Java+Springboot+Vue开发的鲜花商城管理系统源码+运行
基于Java+Springboot+Vue开发的鲜花商城管理系统(前后端分离),这是一项为大学生课程设计作业而开发的项目。该系统旨在帮助大学生学习并掌握Java编程技能,同时锻炼他们的项目设计与开发能力。通过学习基于Java的鲜花商城管理系统项目,大学生可以在实践中学习和提升自己的能力,为以后的职业发展打下坚实基础。技术学习共同进步
426 7
|
3月前
|
自然语言处理 Java Apache
在Java中将String字符串转换为算术表达式并计算
具体的实现逻辑需要填写在 `Tokenizer`和 `ExpressionParser`类中,这里只提供了大概的框架。在实际实现时 `Tokenizer`应该提供分词逻辑,把输入的字符串转换成Token序列。而 `ExpressionParser`应当通过递归下降的方式依次解析
222 14
|
7月前
|
JSON Java fastjson
微服务——SpringBoot使用归纳——Spring Boot返回Json数据及数据封装——使用 fastJson 处理 null
本文介绍如何使用 fastJson 处理 null 值。与 Jackson 不同,fastJson 需要通过继承 `WebMvcConfigurationSupport` 类并覆盖 `configureMessageConverters` 方法来配置 null 值的处理方式。例如,可将 String 类型的 null 转为 "",Number 类型的 null 转为 0,避免循环引用等。代码示例展示了具体实现步骤,包括引入相关依赖、设置序列化特性及解决中文乱码问题。
329 0
|
3月前
|
Java 数据库连接 API
Java 8 + 特性及 Spring Boot 与 Hibernate 等最新技术的实操内容详解
本内容涵盖Java 8+核心语法、Spring Boot与Hibernate实操,按考试考点分类整理,含技术详解与代码示例,助力掌握最新Java技术与应用。
111 2
|
6月前
|
前端开发 Java 物联网
智慧班牌源码,采用Java + Spring Boot后端框架,搭配Vue2前端技术,支持SaaS云部署
智慧班牌系统是一款基于信息化与物联网技术的校园管理工具,集成电子屏显示、人脸识别及数据交互功能,实现班级信息展示、智能考勤与家校互通。系统采用Java + Spring Boot后端框架,搭配Vue2前端技术,支持SaaS云部署与私有化定制。核心功能涵盖信息发布、考勤管理、教务处理及数据分析,助力校园文化建设与教学优化。其综合性和可扩展性有效打破数据孤岛,提升交互体验并降低管理成本,适用于日常教学、考试管理和应急场景,为智慧校园建设提供全面解决方案。
398 70
|
4月前
|
Java 数据库连接 API
Java 对象模型现代化实践 基于 Spring Boot 与 MyBatis Plus 的实现方案深度解析
本文介绍了基于Spring Boot与MyBatis-Plus的Java对象模型现代化实践方案。采用Spring Boot 3.1.2作为基础框架,结合MyBatis-Plus 3.5.3.1进行数据访问层实现,使用Lombok简化PO对象,MapStruct处理对象转换。文章详细讲解了数据库设计、PO对象实现、DAO层构建、业务逻辑封装以及DTO/VO转换等核心环节,提供了一个完整的现代化Java对象模型实现案例。通过分层设计和对象转换,实现了业务逻辑与数据访问的解耦,提高了代码的可维护性和扩展性。
167 1
|
4月前
|
SQL Java 数据库
解决Java Spring Boot应用中MyBatis-Plus查询问题的策略。
保持技能更新是侦探的重要素质。定期回顾最佳实践和新技术。比如,定期查看MyBatis-Plus的更新和社区的最佳做法,这样才能不断提升查询效率和性能。
167 1

热门文章

最新文章