实体类和数据表的映射异常（XXX is not mapping[ ]）

在使用SSH框架开发过程，使用hibernate框架提供的工具类实现与数据库数据交互，在执行cmd操作时，如果出现以下异常：

org.hibernate.hql.ast.QuerySyntaxException: xxx is not mapped [from xxx] 或者

nested exception is org.hibernate.hql.internal.ast.QuerySyntaxException

详细异常信息

21:08:31,951 ERROR DefaultDispatcherErrorHandler:42 - Exception occurred during processing request: Customer is not mapped [from Customer]; nested exception is org.hibernate.hql.internal.ast.QuerySyntaxException: Customer is not mapped [from Customer]
org.springframework.orm.hibernate5.HibernateQueryException: Customer is not mapped [from Customer]; nested exception is org.hibernate.hql.internal.ast.QuerySyntaxException: Customer is not mapped [from Customer]at org.springframework.orm.hibernate5.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:176)at org.springframework.orm.hibernate5.HibernateTemplate.doExecute(HibernateTemplate.java:344)at org.springframework.orm.hibernate5.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:309)at org.springframework.orm.hibernate5.HibernateTemplate.find(HibernateTemplate.java:863)at cn.itheima.ssh_exem.dao.impl.CustomerDaoImpl.findAllCustomer(CustomerDaoImpl.java:26)at cn.itheima.ssh_exem.service.impl.CustomerServiceImpl.findAllCustomer(CustomerServiceImpl.java:22)at cn.itheima.ssh_exem.action.CustomerAction.findCustomer(CustomerAction.java:38)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 ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:870)at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1293)at ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:68)at com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethodWithDebugInfo(XWorkMethodAccessor.java:117)at com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethod(XWorkMethodAccessor.java:108)at ognl.OgnlRuntime.callMethod(OgnlRuntime.java:1369)at ognl.ASTMethod.getValueBody(ASTMethod.java:90)at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)at ognl.SimpleNode.getValue(SimpleNode.java:258)at ognl.Ognl.getValue(Ognl.java:494)at ognl.Ognl.getValue(Ognl.java:458)at com.opensymphony.xwork2.ognl.OgnlUtil$2.execute(OgnlUtil.java:309)at com.opensymphony.xwork2.ognl.OgnlUtil.compileAndExecute(OgnlUtil.java:340)at com.opensymphony.xwork2.ognl.OgnlUtil.getValue(OgnlUtil.java:307)at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:423)at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:287)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:250)at org.apache.struts2.interceptor.DeprecationInterceptor.intercept(DeprecationInterceptor.java:41)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:167)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:76)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:125)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:253)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:139)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:564)at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)at org.springframework.orm.hibernate5.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:151)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)at java.lang.Thread.run(Thread.java:745)

问题分析与解决：

上面的异常的抛出主要有几个方面：

1、如果你使用的xml配置文件开发方式，检查hibernate核心配置文件中是否声明映入实体类的映射文件。简单是说，使用标<mapping resource=”/项目全路径名称/映射实体类的名称.hbm.xml”>建立实体类与表的映射关系。

2、检查HQL语句书写书否正确。From 后面跟的是实体类名称而不是数据表的名称，同时注意大小写和单词拼写错误，以及不能包含中多的空格。

3、如果经过以上两步的检测，执行结果仍然报上面的错误信息，那么在你hql语句中from 后面直接跟实体类的全名称。

转载于:https://www.cnblogs.com/blogslee/p/6798473.html

实体类和数据表的映射异常（XXX is not mapping[ ]）相关推荐

从零开发校园商铺平台（SSM到SpringBoot）一.开发准备，实体类设计与表创建
依山傍水房树间,行也安然,住也安然: 一条耕牛半顷田,收也凭天,荒也凭天: 雨过天晴驾小船,鱼在一边,酒在一边: 夜晚妻子话灯前,今也谈谈,古也谈谈: 日上三竿犹在眠,不是神仙,胜似神仙! 一.开发准 ...
mybatisPlus 实体类与数据库表映射关系
使用mybatisPlus时,会确定实体类和数据的映射关系具体的映射方法有两种: 1.默认:采用驼峰映射规则,例如MyUserTable 对应的数据库表为 my_user_table ; TEMy ...
Springboot，Mybatis根据实体类自动建表
Springboot,Mybatis根据实体类自动建表在创建实体类的同时还要在数据库建表,如果只是很少的属性那么无所谓,但是当实体类很多或者字段很多时这就是一个非常让人不爽的事情了通常有两种思路, ...
Ado.Net 实体类、数据连接类、数据访问类
建文件夹:定义数据连接类.数据访问类.实体类 using System; using System.Collections.Generic; using System.Linq; using Syst ...
java实体类生成mysql表_springboot+mybatis通过实体类自动生成数据库表的方法
前言本章介绍使用mybatis结合mysql数据库自动根据实体类生成相关的数据库表. 首先引入相关的pom包我这里使用的是springboot2.1.8.RELEASE的版本 org.mybatis ...
Django实践（二）——使用模型类定义数据表，实现表单页面跳转
Django实践(二)--使用模型类定义数据表,实现表单页面跳转 1.设计和开发信息发布的数据防访问层配置djangosite/settings.py中的INSTALLED_APPS,添加应用app ...
SpringBoot - MyBatis-Plus使用详解2（设置实体类对应的表名、字段名）
二.设置模型对应的表名.字段名 1,设置关联的表名 (1)默认情况下,如果数据库表是使用标准的下划线命名,并且能对应上实体类的类名,我们就不需要特别去手动匹配.比如有张 user_info 表,那么会 ...
java实体类没有映射文件_MyBatis自动生成实体类、DAO和XML映射文件，并去掉实体类中的getter和setter方法...
今天花了3个多小时搞定了这个事情,写个Blog记录一下,先看一下最终生成的实体类吧. packagecom.mybatis.pojo;importlombok.AllArgsConstructor;i ...
根据java实体类生成创建表sql步骤
根据java实体类生成创建表sql步骤根据java实体类生成创建表sql语句时,方法是利用java反射+AOP注解,主要步骤如下: 1.注解类一般在生成表的时候,需要表名.主键名.字段名,对应到注 ...

实体类和数据表的映射异常（XXX is not mapping[ ]）

实体类和数据表的映射异常（XXX is not mapping[ ]）相关推荐

最新文章

热门文章