Hibernate的一对多自关联?报错-问答-阿里云开发者社区-阿里云

开发者社区> 问答> 正文
阿里云
为了无法计算的价值
打开APP
阿里云APP内打开

Hibernate的一对多自关联?报错

2020-06-14 16:00:10 328 1
/*
 * Copyright 2008-2014 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.app.extjs4.domain.user;

import java.util.List;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToMany;
import javax.persistence.Table;

/**
 * App 应用系统Model
 *
 * @author 李长伟
 * @version 1.0 创建时间  2015年5月13日 上午11:47:10
 *
 */
@Entity
@Table(name = "operation_system")
public class App {

    /**逻辑主键*/
    @Id
    @GeneratedValue
    private Long id;
    
    /**
     * 应用系统编号
     */
    @Column
    private String appCode;
    
    /**
     * 应用系统名称
     */
    @Column
    private String appName;
    
    /**
     * 父应用系统编号
     */
    @Column
    private String appParentCode;
    
    /**
     * 下级应用系统列表
     */
    @OneToMany(fetch = FetchType.EAGER)
    @JoinColumn(name = "appParentCode")
    private List<App> childAppList;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getAppCode() {
        return appCode;
    }

    public void setAppCode(String appCode) {
        this.appCode = appCode;
    }

    public String getAppName() {
        return appName;
    }

    public void setAppName(String appName) {
        this.appName = appName;
    }

    public String getAppParentCode() {
        return appParentCode;
    }

    public void setAppParentCode(String appParentCode) {
        this.appParentCode = appParentCode;
    }

    public List<App> getChildAppList() {
        return childAppList;
    }

    public void setChildAppList(List<App> childAppList) {
        this.childAppList = childAppList;
    }

}

我创建一个简单的Model用的是JPA注解和Hibernate的实现,l执行findAll的时候出现以下报错


Hibernate: select app0_.id as id1_3_, app0_.app_code as app_code2_3_, app0_.app_name as app_name3_3_, app0_.app_parent_code as app_pare4_3_ from operation_system app0_ where app0_.app_parent_code is null
Hibernate: select childappli0_.app_parent_code as app_pare4_3_0_, childappli0_.id as id1_3_0_, childappli0_.id as id1_3_1_, childappli0_.app_code as app_code2_3_1_, childappli0_.app_name as app_name3_3_1_, childappli0_.app_parent_code as app_pare4_3_1_ from operation_system childappli0_ where childappli0_.app_parent_code=?
2015-05-15 09:48:02.968  WARN 5740 --- [p-nio-80-exec-1] o.h.engine.jdbc.spi.SqlExceptionHelper   : SQL Error: 0, SQLState: 42883
2015-05-15 09:48:02.969 ERROR 5740 --- [p-nio-80-exec-1] o.h.engine.jdbc.spi.SqlExceptionHelper   : ERROR: operator does not exist: character varying = bigint
  建议:No operator matches the given name and argument type(s). You might need to add explicit type casts.
  位置:312
2015-05-15 09:48:02.986 ERROR 5740 --- [p-nio-80-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet] with root cause

org.postgresql.util.PSQLException: ERROR: operator does not exist: character varying = bigint
  建议:No operator matches the given name and argument type(s). You might need to add explicit type casts.
  位置:312
	at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2198)
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1927)
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255)
	at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:561)
	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:419)
	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:304)
	at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:82)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.getResultSet(AbstractLoadPlanBasedLoader.java:449)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeQueryStatement(AbstractLoadPlanBasedLoader.java:202)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:137)
	at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:102)
	at org.hibernate.loader.collection.plan.AbstractLoadPlanBasedCollectionInitializer.initialize(AbstractLoadPlanBasedCollectionInitializer.java:100)
	at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:693)
	at org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:92)
	at org.hibernate.internal.SessionImpl.initializeCollection(SessionImpl.java:1897)
	at org.hibernate.collection.internal.AbstractPersistentCollection.forceInitialization(AbstractPersistentCollection.java:683)
	at org.hibernate.engine.internal.StatefulPersistenceContext.initializeNonLazyCollections(StatefulPersistenceContext.java:893)
	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:360)
	at org.hibernate.loader.Loader.doList(Loader.java:2554)
	at org.hibernate.loader.Loader.doList(Loader.java:2540)
	at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2370)
	at org.hibernate.loader.Loader.list(Loader.java:2365)
	at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:497)
	at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:387)
	at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:236)
	at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1264)
	at org.hibernate.internal.QueryImpl.list(QueryImpl.java:103)
	at org.hibernate.jpa.internal.QueryImpl.list(QueryImpl.java:573)
	at org.hibernate.jpa.internal.QueryImpl.getResultList(QueryImpl.java:449)
	at org.hibernate.jpa.criteria.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:67)
	at org.springframework.data.jpa.repository.query.JpaQueryExecution$CollectionExecution.doExecute(JpaQueryExecution.java:110)
	at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:74)
	at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:97)
	at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:88)
	at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:395)
	at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:373)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodIntercceptor.invoke(CrudMethodMetadataPostProcessor.java:122)
	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.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
	at com.sun.proxy.$Proxy79.findAllByAppParentCodeIsNull(Unknown Source)
	at com.app.extjs4.service.user.impl.AppServiceImpl.getApp(AppServiceImpl.java:46)
	at com.app.extjs4.controller.user.AppController.listApp(AppController.java:55)
	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.doInvoke(InvocableHandlerMethod.java:221)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:776)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:618)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:186)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:516)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1086)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:659)
	at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:223)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1558)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1515)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$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)



这个异常我看了一下生成的SQl语句是因为它把自关联字段(app_parent_code)的值当成Long型传过去了,但是数据库里面是varchar类型所以报错,想知道这个是不是Hibernate的关联字段必须是Long型还是可以在哪设置



取消 提交回答
全部回答(1)
  • 爱吃鱼的程序员
    2020-06-14 16:00:27

    问题已近解决了原来@OneToMany这些关联的映射,是相对于主键去做的,但是我这边要关联查询的字段并不是外键而是自己定义的一个字段,一个是varchar,一个是int8所以会报字段类别冲突,现在只好再添加一个字段映射主键暂时解决吧,不知道怎么指定映射的字段

    0 0
相关问答

1

回答

hibernate问题

2016-03-04 09:29:38 1830浏览量 回答数 1

1

回答

有关于 hibernate 多表关联 查询问题

2016-03-04 15:36:49 1694浏览量 回答数 1

1

回答

hibernate取值问题

2016-03-17 09:27:48 1628浏览量 回答数 1

1

回答

用hibernate就非要用关联配置么?-服务报错

2020-05-31 15:36:21 253浏览量 回答数 1

1

回答

用hibernate就非要用关联配置么?:配置报错 

2020-05-31 22:57:33 277浏览量 回答数 1

1

回答

Hibernate 表关联配置 : 配置报错 

2020-06-04 13:11:40 264浏览量 回答数 1

2

回答

hibernate注解问题?报错

2020-06-15 19:54:10 1522浏览量 回答数 2

1

回答

hibernate关系映射配置出错?报错

2020-06-22 19:03:17 239浏览量 回答数 1

1

回答

hibernate 多表关联查询的问题?报错

2020-06-22 20:03:03 268浏览量 回答数 1

1

回答

请教hibernate 查找问题?报错

2020-06-22 20:38:36 257浏览量 回答数 1
+关注
爱吃鱼的程序员
https://developer.aliyun.com/profile/5yerqm5bn5yqg?spm=a2c6h.12873639.0.0.6eae304abcjaIB
文章
问答
问答排行榜
最热
最新
相关电子书
更多
低代码开发师(初级)实战教程
立即下载
阿里巴巴DevOps 最佳实践手册
立即下载
冬季实战营第三期:MySQL数据库进阶实战
立即下载