### Cause: java.sql.SQLIntegrityConstraintViolationException: Column ‘user

org.springframework.dao.DataIntegrityViolationException:

Error updating database. Cause: java.sql.SQLIntegrityConstraintViolationException: Column ‘user_id’ cannot be null

The error may exist in com/itheima/reggie/mapper/ShoppingCartMapper.java (best guess)

The error may involve com.itheima.reggie.mapper.ShoppingCartMapper.save-Inline

The error occurred while setting parameters

SQL: insert into shopping_cart values(null,?,?,?,?,?,?,?,?,?)

Cause: java.sql.SQLIntegrityConstraintViolationException: Column ‘user_id’ cannot be null

; Column ‘user_id’ cannot be null; nested exception is java.sql.SQLIntegrityConstraintViolationException: Column ‘user_id’ cannot be null
at org.springframework.jdbc.support.SQLExceptionSubclassTranslator.doTranslate(SQLExceptionSubclassTranslator.java:87)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:70)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:79)
at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:74)
at org.mybatis.spring.SqlSessionTemplateSqlSessionInterceptor.invoke(SqlSessionTemplate.java:440)atcom.sun.proxy.SqlSessionInterceptor.invoke(SqlSessionTemplate.java:440) at com.sun.proxy.SqlSessionInterceptor.invoke(SqlSessionTemplate.java:440)atcom.sun.proxy.Proxy63.insert(Unknown Source)
at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:271)
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:62)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:57)
at com.sun.proxy.Proxy78.save(UnknownSource)atcom.itheima.reggie.service.impl.ShoppingCartServiceImpl.save(ShoppingCartServiceImpl.java:36)atcom.itheima.reggie.controller.ShoppingCartController.save(ShoppingCartController.java:37)atjava.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atjava.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)atjava.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)atjava.base/java.lang.reflect.Method.invoke(Method.java:566)atorg.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197)atorg.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141)atorg.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)atorg.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894)atorg.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)atorg.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)atorg.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060)atorg.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962)atorg.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)atorg.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)atjavax.servlet.http.HttpServlet.service(HttpServlet.java:652)atorg.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)atjavax.servlet.http.HttpServlet.service(HttpServlet.java:733)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)atorg.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)atcom.itheima.reggie.filter.LoginCheckFilter.doFilter(LoginCheckFilter.java:58)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)atorg.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)atorg.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)atorg.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)atorg.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)atorg.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)atorg.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)atorg.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)atorg.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)atorg.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)atorg.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)atorg.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)atorg.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)atorg.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)atorg.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)atorg.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)atorg.apache.coyote.AbstractProtocolProxy78.save(Unknown Source) at com.itheima.reggie.service.impl.ShoppingCartServiceImpl.save(ShoppingCartServiceImpl.java:36) at com.itheima.reggie.controller.ShoppingCartController.save(ShoppingCartController.java:37) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) at javax.servlet.http.HttpServlet.service(HttpServlet.java:652) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at com.itheima.reggie.filter.LoginCheckFilter.doFilter(LoginCheckFilter.java:58) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocolProxy78.save(UnknownSource)atcom.itheima.reggie.service.impl.ShoppingCartServiceImpl.save(ShoppingCartServiceImpl.java:36)atcom.itheima.reggie.controller.ShoppingCartController.save(ShoppingCartController.java:37)atjava.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atjava.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)atjava.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)atjava.base/java.lang.reflect.Method.invoke(Method.java:566)atorg.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197)atorg.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141)atorg.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)atorg.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894)atorg.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)atorg.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)atorg.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060)atorg.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962)atorg.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)atorg.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)atjavax.servlet.http.HttpServlet.service(HttpServlet.java:652)atorg.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)atjavax.servlet.http.HttpServlet.service(HttpServlet.java:733)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)atorg.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)atcom.itheima.reggie.filter.LoginCheckFilter.doFilter(LoginCheckFilter.java:58)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)atorg.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)atorg.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)atorg.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)atorg.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)atorg.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)atorg.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)atorg.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)atorg.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)atorg.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)atorg.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)atorg.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)atorg.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)atorg.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)atorg.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)atorg.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)atorg.apache.coyote.AbstractProtocolConnectionHandler.process(AbstractProtocol.java:893)
at org.apache.tomcat.util.net.NioEndpointSocketProcessor.doRun(NioEndpoint.java:1707)atorg.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)atjava.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)atjava.base/java.util.concurrent.ThreadPoolExecutorSocketProcessor.doRun(NioEndpoint.java:1707) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutorSocketProcessor.doRun(NioEndpoint.java:1707)atorg.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)atjava.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)atjava.base/java.util.concurrent.ThreadPoolExecutorWorker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThreadWrappingRunnable.run(TaskThread.java:61)atjava.base/java.lang.Thread.run(Thread.java:834)Causedby:java.sql.SQLIntegrityConstraintViolationException:Column′userid′cannotbenullatcom.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:117)atcom.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)atcom.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:953)atcom.mysql.cj.jdbc.ClientPreparedStatement.execute(ClientPreparedStatement.java:371)atcom.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:497)atjava.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atjava.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)atjava.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)atjava.base/java.lang.reflect.Method.invoke(Method.java:566)atorg.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:59)atcom.sun.proxy.WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:834) Caused by: java.sql.SQLIntegrityConstraintViolationException: Column 'user_id' cannot be null at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:117) at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:953) at com.mysql.cj.jdbc.ClientPreparedStatement.execute(ClientPreparedStatement.java:371) at com.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:497) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:59) at com.sun.proxy.WrappingRunnable.run(TaskThread.java:61)atjava.base/java.lang.Thread.run(Thread.java:834)Causedby:java.sql.SQLIntegrityConstraintViolationException:Column′userid′cannotbenullatcom.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:117)atcom.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)atcom.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:953)atcom.mysql.cj.jdbc.ClientPreparedStatement.execute(ClientPreparedStatement.java:371)atcom.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:497)atjava.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atjava.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)atjava.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)atjava.base/java.lang.reflect.Method.invoke(Method.java:566)atorg.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:59)atcom.sun.proxy.Proxy97.execute(Unknown Source)
at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:47)
at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:74)
at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:50)
at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117)
at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63)
at com.sun.proxy.Proxy95.update(UnknownSource)atorg.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:197)atorg.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:184)atjava.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atjava.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)atjava.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)atjava.base/java.lang.reflect.Method.invoke(Method.java:566)atorg.mybatis.spring.SqlSessionTemplateProxy95.update(Unknown Source) at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:197) at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:184) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.mybatis.spring.SqlSessionTemplateProxy95.update(UnknownSource)atorg.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:197)atorg.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:184)atjava.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atjava.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)atjava.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)atjava.base/java.lang.reflect.Method.invoke(Method.java:566)atorg.mybatis.spring.SqlSessionTemplateSqlSessionInterceptor.invoke(SqlSessionTemplate.java:426)
… 60 more

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### Cause: java.sql.SQLIntegrityConstraintViolationException: Column ‘user_id‘ cannot be null