[英]I am getting a PSQLException; column name brandid was not found in this ResultSet
我正在创建自定义存储库方法来按名称查找品牌并按类型获取品牌列表。 为了防止删除和创建已经存在的品牌，有 existsByName 方法。 问题在于映射请求。 这是我的代码：
Model层：
@Entity
public class Brand {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "brandid")
private long brandID;
@Column(name = "brand_name" ,nullable = false)
private String brandName;
@Column(name = "brand_type",nullable = false)
@Enumerated(EnumType.ORDINAL)
private BrandType brandType;
public Brand() {
}
public Brand(long brandID, String brandName, BrandType brandType) {
this.brandID = brandID;
this.brandName = brandName;
this.brandType = brandType;
}
public long getBrandID() {
return brandID;
}
public void setBrandID(long brandID) {
this.brandID = brandID;
}
public String getBrandName() {
return brandName;
}
public void setBrandName(String brandName) {
this.brandName = brandName;
}
public BrandType getBrandType() {
return brandType;
}
public void setBrandType(BrandType brandType) {
this.brandType = brandType;
}
}
存储层：
public interface BrandRepository extends JpaRepository<Brand, Long> {
@Query(value="SELECT brand_name FROM brand WHERE brand_name=:brandName", nativeQuery = true)
Brand getBrandByName(@Param("brandName") String brandName);
// Creating exists by methods so we can only delete brands if they exist (Check service)
@Query(value="SELECT COUNT(brand_name) > 0 from brand WHERE brand_name=:brandName", nativeQuery = true)
boolean existsByName(@Param("brandName")String brandName);
@Query(value="DELETE FROM brand WHERE brand_name=:brandName", nativeQuery = true)
void deleteBrand(@Param("brandName") String brandName);
// Creating exists by methods so we get brands by type if type exists (Check service)
@Query(value="SELECT COUNT(brand_type) > 0 from brand WHERE brand_type=:brandType", nativeQuery = true)
boolean existsByType(@Param("brandType") BrandType brandType);
@Query(value="SELECT brand_name, brand_type FROM brand WHERE brand_type=:brandType", nativeQuery = true)
List<Brand> getBrandsByType(@Param("brandType") BrandType brandType);
}
服务层：
public interface BrandService {
List<Brand> getBrands();
boolean existsByType(BrandType brandType);
List<Brand> getBrandsByType(BrandType brandType);
boolean existsByName(String brandName);
Brand getBrandByName(String brandName);
void deleteBrand(String brandName);
long addBrand(Brand brand);
}
服务实现层
@Service
public class BrandServiceImpl implements BrandService {
@Autowired
BrandRepository brandRepository;
@Override
public List<Brand> getBrands() {
return brandRepository.findAll();
}
@Override
public boolean existsByType(BrandType brandType) {
return brandRepository.existsByType(brandType);
}
@Override
public List<Brand> getBrandsByType(BrandType brandType) {
if (brandRepository.existsByType(brandType)) {
return brandRepository.getBrandsByType(brandType);
} else {
throw new RecordNotFoundException();
}
}
@Override
public boolean existsByName(String brandName) {
return brandRepository.existsByName(brandName);
}
@Override
public Brand getBrandByName(String brandName) {
if (brandRepository.existsByName(brandName)) {
return brandRepository.getBrandByName(brandName);
} else {
throw new RecordNotFoundException();
}
}
@Override
public void deleteBrand(String brandName) {
brandRepository.deleteBrand(brandName);
}
@Override
public long addBrand(Brand brand) {
Brand newBrand = brandRepository.save(brand);
return newBrand.getBrandID();
}
}
Controller：
@RestController
@RequestMapping(value = "/brands")
public class BrandController {
@Autowired
private BrandService brandService;
@GetMapping(value = "")
public ResponseEntity<Object> getBrands() {
return ResponseEntity.ok().body(brandService.getBrands());
}
@GetMapping(value = "/name/{brandname}")
public ResponseEntity<Object> getBrandByName(@PathVariable("brandname") String brandName) {
return ResponseEntity.ok().body(brandService.getBrandByName(brandName));
}
@GetMapping(value = "/type/{brandType}")
public ResponseEntity<Object> getBrandsByType(@PathVariable("brandType") BrandType brandType) {
return ResponseEntity.ok().body(brandService.getBrandsByType(brandType));
}
@DeleteMapping(value = "/name/{brandname}")
public ResponseEntity<Object> deleteBrand(@PathVariable("brandname") String brandName) {
brandService.deleteBrand(brandName);
return ResponseEntity.noContent().build();
}
@PostMapping(value = "")
public ResponseEntity<Object> addBrand(@RequestBody Brand brand) {
long newId = brandService.addBrand(brand);
URI location = ServletUriComponentsBuilder.fromCurrentRequest().path("/{id}")
.buildAndExpand(newId).toUri();
return ResponseEntity.created(location).body(location);
}
}
错误：
2021-04-22 14:55:39.527 WARN 11346 --- [nio-8088-exec-2] o.h.engine.jdbc.spi.SqlExceptionHelper : SQL Error: 0, SQLState: 42703
2021-04-22 14:55:39.528 ERROR 11346 --- [nio-8088-exec-2] o.h.engine.jdbc.spi.SqlExceptionHelper : The column name brandid was not found in this ResultSet.
2021-04-22 14:55:39.544 ERROR 11346 --- [nio-8088-exec-2] 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 execute query; SQL [SELECT brand_name FROM brand WHERE brand_name=?]; nested exception is org.hibernate.exception.SQLGrammarException: could not execute query] with root cause
org.postgresql.util.PSQLException: The column name brandid was not found in this ResultSet.
at org.postgresql.jdbc.PgResultSet.findColumn(PgResultSet.java:2748) ~[postgresql-42.2.19.jar:42.2.19]
at org.postgresql.jdbc.PgResultSet.getLong(PgResultSet.java:2631) ~[postgresql-42.2.19.jar:42.2.19]
at com.zaxxer.hikari.pool.HikariProxyResultSet.getLong(HikariProxyResultSet.java) ~[HikariCP-3.4.5.jar:na]
at org.hibernate.type.descriptor.sql.BigIntTypeDescriptor$2.doExtract(BigIntTypeDescriptor.java:63) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:47) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:257) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:253) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:243) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.type.AbstractStandardBasicType.hydrate(AbstractStandardBasicType.java:329) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.loader.Loader.extractKeysFromResultSet(Loader.java:803) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:727) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.loader.Loader.getRowsFromResultSet(Loader.java:1039) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.loader.Loader.processResultSet(Loader.java:990) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.loader.Loader.doQuery(Loader.java:959) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:349) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.loader.Loader.doList(Loader.java:2849) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.loader.Loader.doList(Loader.java:2831) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2663) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.loader.Loader.list(Loader.java:2658) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:338) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:2141) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.internal.AbstractSharedSessionContract.list(AbstractSharedSessionContract.java:1172) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.query.internal.NativeQueryImpl.doList(NativeQueryImpl.java:176) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1593) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.hibernate.query.internal.AbstractProducedQuery.getSingleResult(AbstractProducedQuery.java:1641) ~[hibernate-core-5.4.30.Final.jar:5.4.30.Final]
at org.springframework.data.jpa.repository.query.JpaQueryExecution$SingleEntityExecution.doExecute(JpaQueryExecution.java:196) ~[spring-data-jpa-2.4.8.jar:2.4.8]
at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:88) ~[spring-data-jpa-2.4.8.jar:2.4.8]
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:155) ~[spring-data-jpa-2.4.8.jar:2.4.8]
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:143) ~[spring-data-jpa-2.4.8.jar:2.4.8]
at org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:137) ~[spring-data-commons-2.4.8.jar:2.4.8]
at org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:121) ~[spring-data-commons-2.4.8.jar:2.4.8]
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:152) ~[spring-data-commons-2.4.8.jar:2.4.8]
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:131) ~[spring-data-commons-2.4.8.jar:2.4.8]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.6.jar:5.3.6]
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:80) ~[spring-data-commons-2.4.8.jar:2.4.8]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.6.jar:5.3.6]
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123) ~[spring-tx-5.3.6.jar:5.3.6]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388) ~[spring-tx-5.3.6.jar:5.3.6]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) ~[spring-tx-5.3.6.jar:5.3.6]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.6.jar:5.3.6]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137) ~[spring-tx-5.3.6.jar:5.3.6]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.6.jar:5.3.6]
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:145) ~[spring-data-jpa-2.4.8.jar:2.4.8]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.6.jar:5.3.6]
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97) ~[spring-aop-5.3.6.jar:5.3.6]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.6.jar:5.3.6]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215) ~[spring-aop-5.3.6.jar:5.3.6]
at com.sun.proxy.$Proxy92.getBrandByName(Unknown Source) ~[na:na]
at nl.marijnploeg.kitereparatie.service.BrandServiceImpl.getBrandByName(BrandServiceImpl.java:45) ~[classes/:na]
at nl.marijnploeg.kitereparatie.controller.BrandController.getBrandByName(BrandController.java:28) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.6.jar:5.3.6]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.6.jar:5.3.6]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.6.jar:5.3.6]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) ~[tomcat-embed-core-9.0.45.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.6.jar:5.3.6]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.45.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.6.jar:5.3.6]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.6.jar:5.3.6]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.6.jar:5.3.6]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.6.jar:5.3.6]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.6.jar:5.3.6]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.6.jar:5.3.6]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1707) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.45.jar:9.0.45]
at java.base/java.lang.Thread.run(Thread.java:832) ~[na:na]
只需在存储库中声明（没有 @Query 注释）：
Optional<Brand> findByBrandName(String brandName);
现在您可以简化服务的代码：
@Override
public Brand getBrandByName(String brandName) {
return brandRepository.findByBrandName(brandName).orElseThrow(() -> new RecordNotFoundException());
}
在引擎盖下 Spring 数据根据方法名称和参数自动生成 SQL。 要了解更多信息，请查看这篇文章。
此外，这种方法只允许执行一个查询而不是两个。
org.postgresql.util.PSQLException：在此ResultSet中找不到列名称usuario
[英]org.postgresql.util.PSQLException: The column name usuario was not found in this ResultSet
PSQLException: 在这个 ResultSet 中找不到列名 start_value
[英]PSQLException: The column name start_value was not found in this ResultSet
SqlExceptionHelper - 在这个 ResultSet 中找不到列名...
[英]SqlExceptionHelper - The column name ... was not found in this ResultSet
iBatis ResultMaps：在此ResultSet中找不到列名<...>
[英]iBatis ResultMaps: The column name <…> was not found in this ResultSet
在此 ResultSet 中找不到列名 id。 我的 select 中不需要此列
[英]The column name id was not found in this ResultSet. I do not need this column in my select
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