最近做项目时，使用了mybatis级联查询，配置了懒加载模式，结果通过springMvc返回json时报的错。报错如下：

最新推荐文章于 2025-06-26 19:10:58 发布

Alias-CSL

最新推荐文章于 2025-06-26 19:10:58 发布

阅读量5.6k

点赞数 6

CC 4.0 BY-SA版权

分类专栏：项目开发经验文章标签： mybatis json spring mvc

本文链接：https://blog.youkuaiyun.com/qq_33548914/article/details/79991280

项目开发经验专栏收录该内容

5 篇文章

订阅专栏

在项目中遇到一个问题，当使用Mybatis的级联查询并开启懒加载模式后，通过SpringMvc返回Json时，遭遇了HTTP 500 Internal Server Error。报错详细信息未给出，但通常这类错误可能由于懒加载在脱离session时尝试获取关联数据导致。解决办法是避免在返回Json时触发懒加载，或者调整Mybatis配置以适应这种情况。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

最近做项目时，使用了mybatis级联查询，配置了懒加载模式，结果通过springMvc返回json时报的错。报错如下：

HTTP Status 500 – Internal Server Error

Message Could not write JSON: No serializer found for class org.apache.ibatis.executor.loader.javassist.JavassistProxyFactory$EnhancedResultObjectProxyImpl and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS); nested exception is com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.apache.ibatis.executor.loader.javassist.JavassistProxyFactory$EnhancedResultObjectProxyImpl and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: cn.barathrum.frogshop.bean.Message["extend"]->java.util.HashMap["pageInfo"]->com.github.pagehelper.PageInfo["list"]->com.github.pagehelper.Page[0]->cn.barathrum.frogshop.bean.Good_$$_jvst9dd_0["enteringPerson"]->cn.barathrum.frogshop.bean.User_$$_jvst9dd_3["roles"]->java.util.HashSet[0]->cn.barathrum.frogshop.bean.Roles_$$_jvst9dd_4["handler"])

Exception

Root Cause

Note The full stack trace of the root cause is available in the server logs.

Type Exception Report

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

org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: No serializer found for class org.apache.ibatis.executor.loader.javassist.JavassistProxyFactory$EnhancedResultObjectProxyImpl and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS); nested exception is com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.apache.ibatis.executor.loader.javassist.JavassistProxyFactory$EnhancedResultObjectProxyImpl and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: cn.barathrum.frogshop.bean.Message["extend"]->java.util.HashMap["pageInfo"]->com.github.pagehelper.PageInfo["list"]->com.github.pagehelper.Page[0]->cn.barathrum.frogshop.bean.Good_$$_jvst9dd_0["enteringPerson"]->cn.barathrum.frogshop.bean.User_$$_jvst9dd_3["roles"]->java.util.HashSet[0]->cn.barathrum.frogshop.bean.Roles_$$_jvst9dd_4["handler"])

org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:293)

org.springframework.http.converter.AbstractGenericHttpMessageConverter.write(AbstractGenericHttpMessageConverter.java:106)

org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:231)

org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:174)

org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:81)

org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:113)

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:967)

org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)

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:634)

org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)

javax.servlet.http.HttpServlet.service(HttpServlet.java:741)

org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)

org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)

org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)

org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)

org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)

org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)

org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)

org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:347)

org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:263)

org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)

org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.apache.ibatis.executor.loader.javassist.JavassistProxyFactory$EnhancedResultObjectProxyImpl and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: cn.barathrum.frogshop.bean.Message["extend"]->java.util.HashMap["pageInfo"]->com.github.pagehelper.PageInfo["list"]->com.github.pagehelper.Page[0]->cn.barathrum.frogshop.bean.Good_$$_jvst9dd_0["enteringPerson"]->cn.barathrum.frogshop.bean.User_$$_jvst9dd_3["roles"]->java.util.HashSet[0]->cn.barathrum.frogshop.bean.Roles_$$_jvst9dd_4["handler"])

com.fasterxml.jackson.databind.exc.InvalidDefinitionException.from(InvalidDefinitionException.java:77)

com.fasterxml.jackson.databind.SerializerProvider.reportBadDefinition(SerializerProvider.java:1191)

com.fasterxml.jackson.databind.DatabindContext.reportBadDefinition(DatabindContext.java:312)

com.fasterxml.jackson.databind.ser.impl.UnknownSerializer.failForEmpty(UnknownSerializer.java:71)

com.fasterxml.jackson.databind.ser.impl.UnknownSerializer.serialize(UnknownSerializer.java:33)