在 JpaRepository 中使用本机查询时出现 org.hibernate.exception.SQLGrammarException 问题？

Question

我在使用以下代码时收到SQLGrammarException 异常

请检查我的存储库类，如下所示

package repository;

package repository;

import java.util.List;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;

import entity.UserInfo;

@Repository
public interface UserRepository extends JpaRepository<UserInfo, Integer> {
    
    
    @Query("select u from UserInfo u")
    public List<UserInfo> getAllUsers();

    
    /// I AM GETTING THE ISSUE IN THE FOLLOWING QUERY WHICH ARE AS BELOW
    @Query(value = "select u From UserInfo u WHERE u.name= :n",nativeQuery = true)
    public List<UserInfo> getUserByName(@Param("n") String name);

    
    
}

现在请检查我的服务类如下

package service;

import java.util.List;

import javax.transaction.Transactional;
import javax.transaction.Transactional.TxType;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.learning.sql_learning.SqlLearningApplication;

import entity.PaymentInfo;
import entity.UserInfo;
import repository.PaymentRepository;
import repository.UserRepository;
import transaction.MyExcecption;
import transaction.RequestUser;
import transaction.UserAcknowlegment;

@Service
public class TransactionService {

    
    private static final Logger logger = LoggerFactory.getLogger(SqlLearningApplication.class);

    
    @Autowired
    private UserRepository userRepository;
    
    public List<UserInfo> getAllUsers() {
        // TODO Auto-generated method stub
        return userRepository.getAllUsers();
    }

    public List<UserInfo> getUserByName(String name) {
        return userRepository.getUserByName(name);
    }
    
    
    
}

请检查包含该记录的我的数据库。

我在 SO 中搜索过，但没有得到正确的解决方案，在 SO 中也有同样的问题，但对我不起作用，请帮助我

我在运行 getUserByName() rest API 时遇到以下异常

{ "时间戳": "2021-08-13T07:51:30.538+00:00", “状态”：500， "error": "内部服务器错误", “trace”：“org.springframework.dao.InvalidDataAccessResourceUsageException：无法提取 ResultSet；SQL [n/a]；嵌套异常是 org.hibernate.exception.SQLGrammarException：无法提取 ResultSet\r\n\tat org.springframework。 orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:259)\r\n\tat org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:233)\r\n\tat org. springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:551)\r\n\tat org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61)\r\n\tat org.springframework。 dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242)\r\n\tat org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:152)\r\n\ tat org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)\r\n\tat org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:145)\ r\n\tat org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)\r\n\tat org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)\r\ n\tat org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)\r\n\tat org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)\r\n\ tat jdk.proxy5/jdk.proxy5.$Proxy106.getUserByName(Unknown Source)\r\n\tat service.TransactionService.getUserByName(TransactionService.java:67)\r\n\tat service.TransactionService$$FastClassBySpringCGLIB$$8a688df0 .invoke()\r\n\tat org.springframework.cglib.proxy.M ethodProxy.invoke(MethodProxy.java:218)\r\n\tat org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)\r\n\tat service.TransactionService$$EnhancerBySpringCGLIB$$7 bb3b0ca.getUserByName()\r\n\tat controller.MyController.getUserByName(MyController.java:116)\r\n\tat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\r\n \tat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)\r\n\tat java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\r \n\tat java.base/java.lang.reflect.Method.invoke(Method.java:567)\r\n\tat org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) \r\n\tat org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141)\r\n\tat org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMe thod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)\r\n\tat org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)\r\n\tat org.springframework。 web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)\r\n\tat org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)\r \n\tat org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1064)\r\n\tat org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)\r\n \tat org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)\r\n\tat org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)\r\n\tat javax.servlet.http.HttpServlet.service(HttpServlet.java:681)\r\n\tat org.springframework.web.servlet.FrameworkServlet.service( FrameworkServlet.java:883)\r\n\tat javax.servlet.http.HttpServlet.service(HttpServlet.java:764)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java: 228)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)\r\n\tat org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java: 53)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163) \r\n\tat org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)\r \n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)\r\n \t在 org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)\r\n\tat org .apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)\r\n\tat org.springframework .web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)\r\n\tat org.apache.catalina .core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)\r\n\tat org.apache.catalina.core .StandardWrapperValve.invoke(StandardWrapperValve.java:202)\r\n\tat org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) \r\n\tat org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)\r\n\tat org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)\r \n\tat org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)\r\n\tat org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)\r\n \tat org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)\r\n\tat org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382)\r\n\tat org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)\r\n\tat org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893)\r\n\tat org.apache。 tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723)\r\n\tat org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)\r\n\tat java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)\r\n\tat java.b ase/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)\r\n\tat org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)\r \n\tat java.base/java.lang.Thread.run(Thread.java:831)\r\n原因：org.hibernate.exception.SQLGrammarException: 无法提取 ResultSet\r\n\tat org.hibernate。 exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:63)\r\n\tat org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)\r\n\tat org.hibernate.engine。 jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113)\r\n\tat org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:99)\r\n\tat org.hibernate。 engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:67)\r\n\tat org.hibernate.loader.Loader.getResultSet(Loader.java:2297)\r\n\tat org.hibernate.loader。 Loader.executeQueryStatement(Loader.java:2050)\r\n\tat org.hibernate.load er.Loader.executeQueryStatement(Loader.java:2012)\r\n\tat org.hibernate.loader.Loader.doQuery(Loader.java:948)\r\n\tat org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections( Loader.java:349)\r\n\tat org.hibernate.loader.Loader.doList(Loader.java:2843)\r\n\tat org.hibernate.loader.Loader.doList(Loader.java:2825) \r\n\tat org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2657)\r\n\tat org.hibernate.loader.Loader.list(Loader.java:2652)\r\n\tat org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:338)\r\n\tat org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:2141)\r\n\tat org.hibernate。 internal.AbstractSharedSessionContract.list(AbstractSharedSessionContract.java:1169)\r\n\tat org.hibernate.query.internal.NativeQueryImpl.doList(NativeQueryImpl.java:176)\r\n\tat org.hibernate.query.internal。 AbstractProducedQuery.list(AbstractProducedQuery.java:1604)\r\n\tat org.hibernate.query.Query.getResultList(Query.java:165)\r\n\tat org.springframework。 data.jpa.repository.query.JpaQueryExecution$CollectionExecution.doExecute(JpaQueryExecution.java:126)\r\n\tat org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:88)\r \n\tat org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:155)\r\n\tat org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery. java:143)\r\n\tat org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:137)\r\n\tat org.springframework.data.repository.core.support。 RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:121)\r\n\tat org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:152)\r\n\tat org.springframework.data。 repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:131)\r\n\tat org.springframework.aop.framework.ReflectiveMetho dInvocation.proceed(ReflectiveMethodInvocation.java:186)\r\n\tat org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:80)\r\n\tat org.springframework.aop.framework.ReflectiveMethodInvocation。继续（ReflectiveMethodInvocation.java:186）\r\n\tat org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation（TransactionInterceptor.java:123）\r\n\tat org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction (TransactionAspectSupport.java:388)\r\n\tat org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)\r\n\tat org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation .java:186)\r\n\tat org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137)\r\n\t... 63 更多\r\n原因：java.sql。 SQL语法器rorException：表 'another_test.userinfo' 不存在\r\n\tat com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120)\r\n\tat com.mysql.cj。 jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)\r\n\tat com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:953)\r\n\tat com.mysql.cj。 jdbc.ClientPreparedStatement.executeQuery(ClientPreparedStatement.java:1003)\r\n\tat com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52)\r\n\tat com.zaxxer.hikari.pool。 HikariProxyPreparedStatement.executeQuery(HikariProxyPreparedStatement.java)\r\n\tat org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:57)\r\n\t... 94 更多\r\n" , "message": "无法提取 ResultSet；SQL [n/a]；嵌套异常是 org.hibernate.exception.SQLGrammarException: 无法提取 ResultSet", “路径”：“/getUserByName” }

Answer 1

这不是一个有效的 nativeQuery。

那将是正确的 nativeQuery：

@Query(value = "select * From UserInfo u WHERE u.name= :n",nativeQuery = true)
List<UserInfo> getUserByName(@Param("n") String name);

但我怀疑您是否真的要执行本机查询 (SQL) 而不是 JPQL 查询。所以你可以删除 nativeQuery=true

@Query(value = "select u From UserInfo u WHERE u.name= :n")
List<UserInfo> getUserByName(@Param("n") String name);

现在这个查询可以由 Spring Data JPA 生成，所以你根本不需要查询：

List<UserInfo> findByName(String name);