【发布时间】：2019-03-04 22:17:01
【问题描述】：
我正在尝试使用 Spring Data 从 SQL Server 表中读取数据。我有可以正常工作的本机查询，但我想使用 Spring Repository 和 find() 方法。
我定义了一个实体：
@Entity
@Table(name = "my table")
// This native query works when I try and use it.
@NamedNativeQuery(name = "Associate.getDistinctBusinessUnits",
query = "SELECT DISTINCT bus_unit_name FROM \"my table\" ORDER BY bus_unit_name"
)
public class Associate {
@Id
@Column(name = "assoc_oper_id", columnDefinition = "VARCHAR(50)")
public String assocOperId;
...
}
和一个存储库
@Repository
public interface AssociateRepository extends PagingAndSortingRepository<Associate, String> {
List<String> getDistinctBusinessUnits();
}
我的控制器正在调用存储库
// This query fails.
final Optional<Associate> result = associateRepository.findById(associateId);
但当它发生时，我会得到
12147 [http-nio-8080-exec-1] ERROR o.h.e.jdbc.spi.SqlExceptionHelper - Incorrect syntax near the keyword 'as'.
12181 [http-nio-8080-exec-1] ERROR o.a.c.c.C.[.[.[.[dispatcherServlet] - Servlet.service() for servlet [dispatcherServlet] in context with path [/roster-service] 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
com.microsoft.sqlserver.jdbc.SQLServerException: Incorrect syntax near the keyword 'as'.
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(SQLServerException.java:256)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.getNextResult(SQLServerStatement.java:1621)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.doExecutePreparedStatement(SQLServerPreparedStatement.java:592)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement$PrepStmtExecCmd.doExecute(SQLServerPreparedStatement.java:522)
at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:7194)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:2930)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(SQLServerStatement.java:248)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeStatement(SQLServerStatement.java:223)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.executeQuery(SQLServerPreparedStatement.java:444)
at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52)
at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeQuery(HikariProxyPreparedStatement.java)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:60)
at org.hibernate.loader.Loader.getResultSet(Loader.java:2167)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1930)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1892)
at org.hibernate.loader.Loader.doQuery(Loader.java:937)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:340)
at org.hibernate.loader.Loader.doList(Loader.java:2689)
at org.hibernate.loader.Loader.doList(Loader.java:2672)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2506)
at org.hibernate.loader.Loader.list(Loader.java:2501)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:504)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:395)
at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:220)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1508)
at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1537)
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1505)
at org.hibernate.query.Query.getResultList(Query.java:135)
at org.hibernate.query.criteria.internal.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:74)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.readPage(SimpleJpaRepository.java:569)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:388)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:356)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:359)
at org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:200)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:644)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:608)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$invoke$3(RepositoryFactorySupport.java:595)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:595)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:59)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:135)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
at com.sun.proxy.$Proxy119.findAll(Unknown Source)
at com.cerner.abilities.roster.service.controllers.AssociatesController.getAssociates(AssociatesController.java:59)
at com.cerner.abilities.roster.service.controllers.AssociatesController$$FastClassBySpringCGLIB$$a1313748.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
at com.my.project.controllers.AssociatesController$$EnhancerBySpringCGLIB$$34fe814.getAssociates(<generated>)
我知道我的数据库连接工作正常，因为我的本机查询存储库方法按预期工作。我已经尝试了几种不同风格的现有 Repository 方法以及我定义的方法来尝试得到相同的错误。
我的spring配置是
# ===============================
# DATABASE
# ===============================
spring.datasource.driver-class-name=com.microsoft.sqlserver.jdbc.SQLServerDriver
spring.datasource.url=jdbc:sqlserver://grddwmrtwhqipdw.northamerica.cerner.net:1433;databaseName=IPDW_PROD02
spring.datasource.username=ablab
spring.datasource.password=ablab
# ===============================
# JPA / HIBERNATE
# ===============================
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=none
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.SQLServerDialect
我正在使用 Spring Boot 2.1.3 和 Spring Data 2.1.5（我确实尝试过 Spring Data 2.1.3，以防它们需要同步），我相信这是当前可用的最新版本。
我不拥有数据库服务器，也不知道如何从 SQL 明确检查版本，但我尝试了几种不同的方言。我也不知道哪里有司机所有可用方言的明确列表，所以我不知道我是否都试过了。
我对 Spring 和 Spring Data 的经验并不丰富。我已经以类似的方式针对 Oracle 使用了存储库，没有问题，所以我的猜测是 SqlServer 的一个特性。
有人有什么想法吗？
谢谢！！
【问题讨论】：
-
还有其他查询吗？此查询在任何地方都没有
AS关键字 -
你为什么还要尝试注入双引号？在选择不当的名称周围使用方括号（例如
[my table]），这样您就不必使用字符串分隔符。 -
或者只使用单引号。
-
我添加了一些 cmets 来尝试解决问题。带注释的本机查询工作正常……尽管可以按照说明进行改进。失败的是“associateRepository.findById(associateId)”调用。该调用生成的查询不在我的控制范围内。事实上，即使我不控制语法，每个 JPA 自动从我的存储库中自动生成的查询都会失败，并出现类似的语法抱怨……JPA/Hibernate 可以。
-
根本原因似乎是我表上的某些列在列名中有空格，而 JPA 没有正确包装它们。类似于 Siddharth 提到的内容，但在存储库构建的查询中，而不是在我的本机查询中。我不知道在为我构建查询时设置哪些选项来改变 JPA 的行为以正确转义空格。
标签： sql-server spring spring-boot spring-data