postgresql - 无法在postgres中使用spring数据jdbc保存实体
问题描述
我正在尝试使用 spring data jdbc 将数据保存在 postgres 中。我能够更新、获取和删除实体，但我无法保存它。从互联网上获取了一个示例项目，我尝试遵循 jdbc 的 spring 数据示例，使用 JdbcAggregateTemplate，模型类的代码如下所示。我已经搜索过 jdbc 更新任何实体而不是直接插入，但是我如何使用任何随机生成器插入。以及如何像我们在 jpa 中那样使用随机生成器。
import java.util.Date;
import org.springframework.data.annotation.Id;
import org.springframework.data.relational.core.mapping.Column;
import com.javabydeveloper.util.UserType;
import lombok.AllArgsConstructor;
import lombok.Data;
@Data // lomok
@AllArgsConstructor
public class User {
//private static final long serialVersionUID = -2343243243242432341L;
@Id
private Long id;
private String userName;
private String password;
private String email;
private Date createdTime;
private Date updatedTime;
@Column("DOB") // to map db column if property not same as column name
private Date dateofBirth;
private UserType userType; // Enum Type
}
存储库接口
@Repository
public interface UserRepository extends CrudRepository<User, Long>, WithInsert<User> {
}
控制器类
@ResponseStatus(HttpStatus.CREATED)
public void createUser(@Valid @RequestBody User user) {
System.out.println(user); // Just to inspect values for demo
userRepository.save(user);
}
withInsert 接口实现
public class WithInsertImpl<T> implements WithInsert<T> {
private final JdbcAggregateTemplate template;
public WithInsertImpl(JdbcAggregateTemplate template) {
this.template = template;
}
@Override
public T insert(T t) {
// TODO Auto-generated method stub
return template.insert(t);
}
}
错误
2021-02-11 13:35:57.729 ERROR 28664 --- [nio-8181-exec-1] o.a.c.c.C.[.[.[.[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [/usermanager] threw exception [Request processing failed; nested exception is org.springframework.data.relational.core.conversion.DbActionExecutionException: Failed to execute DbAction.UpdateRoot(entity=User(id=1, userName=shelly, password=1234, email=soal@abc.com, createdTime=Thu Feb 11 05:53:25 IST 2021, updatedTime=Thu Feb 11 05:53:25 IST 2021, dateofBirth=null, userType=STUDENT))] with root cause
org.springframework.dao.IncorrectUpdateSemanticsDataAccessException: Failed to update entity [User(id=1, userName=shelly, password=1234, email=soal@abc.com, createdTime=Thu Feb 11 05:53:25 IST 2021, updatedTime=Thu Feb 11 05:53:25 IST 2021, dateofBirth=null, userType=STUDENT)]. Id [1] not found in database.
at org.springframework.data.jdbc.core.JdbcAggregateChangeExecutionContext.updateWithoutVersion(JdbcAggregateChangeExecutionContext.java:369) ~[spring-data-jdbc-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.data.jdbc.core.JdbcAggregateChangeExecutionContext.executeUpdateRoot(JdbcAggregateChangeExecutionContext.java:114) ~[spring-data-jdbc-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.data.jdbc.core.AggregateChangeExecutor.execute(AggregateChangeExecutor.java:70) ~[spring-data-jdbc-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.data.jdbc.core.AggregateChangeExecutor.lambda$execute$0(AggregateChangeExecutor.java:50) ~[spring-data-jdbc-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at java.util.ArrayList.forEach(Unknown Source) ~[na:1.8.0_271]
at org.springframework.data.relational.core.conversion.DefaultAggregateChange.forEachAction(DefaultAggregateChange.java:116) ~[spring-data-relational-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.data.jdbc.core.AggregateChangeExecutor.execute(AggregateChangeExecutor.java:50) ~[spring-data-jdbc-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.data.jdbc.core.JdbcAggregateTemplate.store(JdbcAggregateTemplate.java:339) ~[spring-data-jdbc-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.data.jdbc.core.JdbcAggregateTemplate.save(JdbcAggregateTemplate.java:149) ~[spring-data-jdbc-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.data.jdbc.repository.support.SimpleJdbcRepository.save(SimpleJdbcRepository.java:55) ~[spring-data-jdbc-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_271]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_271]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_271]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_271]
at org.springframework.data.repository.core.support.ImplementationInvocationMetadata.invoke(ImplementationInvocationMetadata.java:72) ~[spring-data-commons-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:382) ~[spring-data-commons-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:205) ~[spring-data-commons-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:549) ~[spring-data-commons-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:155) ~[spring-data-commons-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:130) ~[spring-data-commons-2.3.0.RELEASE.jar:2.3.0.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:366) ~[spring-tx-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118) ~[spring-tx-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139) ~[spring-tx-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95) ~[spring-aop-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at com.sun.proxy.$Proxy78.save(Unknown Source) ~[na:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_271]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_271]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_271]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_271]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) ~[spring-aop-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198) ~[spring-aop-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139) ~[spring-tx-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at com.sun.proxy.$Proxy78.save(Unknown Source) ~[na:na]
at com.javabydeveloper.controller.UserController.createUser(UserController.java:82) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_271]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_271]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_271]
at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_271]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.35.jar:9.0.35]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) [tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) [tomcat-embed-core-9.0.35.jar:9.0.35]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.35.jar:9.0.35]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_271]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_271]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.35.jar:9.0.35]
at java.lang.Thread.run(Unknown Source) [na:1.8.0_271]
spring-data-source 的属性
#postgresql
spring.datasource.url=jdbc:postgresql://localhost:5432/Sample
spring.datasource.username=postgres
spring.datasource.password=sonal
spring.datasource.platform=postgresql
spring.datasource.driver-class-name=org.postgresql.Driver
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect
spring.datasource.initialization-mode=always
spring.datasource.initialize=true
spring.datasource.continue-on-error=true
spring.jpa.hibernate.ddl-auto=none
spring.jpa.hibernate.show-sql=true
解决方案
Spring 有一个策略来决定何时实体是新的并且需要插入，或者实体是“旧的”并且需要更新。还有更多策略，第一个是确定对象的 @Id 属性中的值。在您的对象中，id显然填充了值 1，因此触发了更新（而不是插入）。您应该修改您的id定义，并添加如下内容：
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = 'USER_SEQ')
@SequenceGenerator(name = 'USER_SEQ', sequenceName = 'USER_SEQ', allocationSize = 1)
private Long id;
或者其他一些在后台处理 Id 值的策略。当然，不要id在源代码中使用 setter 显式设置。
推荐阅读
- asp.net - 使用文件上传将 Excel 数据传输到 SQL Server 表中
- c# - Docker 构建 vsts 2017
- python - 从 csv 文件读取数据时查找列表的累积总和
- reactjs - 如何修复 gyp ERR！使用 npm 构建错误？
- reactjs - TypeError：this.state.posts.map 不是函数
- python - 按位读取
- java - 没有编译错误，但是当运行代码单击评论按钮时，它不会导致我想要的活动
- c# - 使用按钮单击为 DataGridView 添加多个附件
- java - Android Studio 和 Firebase：全屏显示 ImageView
- java - 如何在keycloak中获取用户手机号码