今天敲代码时候出现这样一个bug，该怎样解决？
英文报错：
Creating a new SqlSession SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@109215d0] was not registered for synchronization because synchronization is not active JDBC Connection [HikariProxyConnection@1505406432 wrapping com.mysql.cj.jdbc.ConnectionImpl@5da30678] will not be managed by Spring Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@109215d0] 2024-04-18 22:10:26.709 ERROR 9248 --- [nio-9090-exec-6] 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.DataIntegrityViolationException: ### Error updating database. Cause: java.sql.SQLException: Field 'id' doesn't have a default value ### The error may exist in zero/file/videoProject/mappers/UserMapper.java (best guess) ### The error may involve zero.file.videoProject.mappers.UserMapper.insert-Inline ### The error occurred while setting parameters ### SQL: insert into `user` (username, password, name, phone, email, address, avatar) values (?, ?, ?, ?, ?, ?, ?) ### Cause: java.sql.SQLException: Field 'id' doesn't have a default value ; Field 'id' doesn't have a default value; nested exception is java.sql.SQLException: Field 'id' doesn't have a default value] with root cause java.sql.SQLException: Field 'id' doesn't have a default value at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) ~[mysql-connector-j-8.0.31.jar:8.0.31] at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-j-8.0.31.jar:8.0.31] at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:916) ~[mysql-connector-j-8.0.31.jar:8.0.31] at com.mysql.cj.jdbc.ClientPreparedStatement.execute(ClientPreparedStatement.java:354) ~[mysql-connector-j-8.0.31.jar:8.0.31] at com.zaxxer.hikari.pool.ProxyPreparedStatement.execute(ProxyPreparedStatement.java:44) ~[HikariCP-4.0.3.jar:na] at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.execute(HikariProxyPreparedStatement.java) ~[HikariCP-4.0.3.jar:na] at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:47) ~[mybatis-3.5.5.jar:3.5.5] at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:74) ~[mybatis-3.5.5.jar:3.5.5] at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:50) ~[mybatis-3.5.5.jar:3.5.5] at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117) ~[mybatis-3.5.5.jar:3.5.5] at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76) ~[mybatis-3.5.5.jar:3.5.5] at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:197) ~[mybatis-3.5.5.jar:3.5.5] at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:184) ~[mybatis-3.5.5.jar:3.5.5] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[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:566) ~[na:na] at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:427) ~[mybatis-spring-2.0.7.jar:2.0.7] at com.sun.proxy.$Proxy63.insert(Unknown Source) ~[na:na] at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:272) ~[mybatis-spring-2.0.7.jar:2.0.7] at com.baomidou.mybatisplus.core.override.PageMapperMethod.execute(PageMapperMethod.java:68) ~[mybatis-plus-core-3.0.5.jar:na] at com.baomidou.mybatisplus.core.override.PageMapperProxy.invoke(PageMapperProxy.java:64) ~[mybatis-plus-core-3.0.5.jar:na] at com.sun.proxy.$Proxy68.insert(Unknown Source) ~[na:na] at zero.file.videoProject.service.UserService.insertUser(UserService.java:13) ~[classes/:na] at zero.file.videoProject.controller.UserController.add(UserController.java:21) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[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:566) ~[na:na] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-5.3.24.jar:5.3.24] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150) ~[spring-web-5.3.24.jar:5.3.24] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117) ~[spring-webmvc-5.3.24.jar:5.3.24] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.24.jar:5.3.24] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.24.jar:5.3.24] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.24.jar:5.3.24] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1071) ~[spring-webmvc-5.3.24.jar:5.3.24] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:964) ~[spring-webmvc-5.3.24.jar:5.3.24] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.24.jar:5.3.24] at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.24.jar:5.3.24] at javax.servlet.http.HttpServlet.service(HttpServlet.java:696) ~[tomcat-embed-core-9.0.69.jar:4.0.FR] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.24.jar:5.3.24] at javax.servlet.http.HttpServlet.service(HttpServlet.java:779) ~[tomcat-embed-core-9.0.69.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.69.jar:9.0.69] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.24.jar:5.3.24] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.24.jar:5.3.24] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.24.jar:5.3.24] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.24.jar:5.3.24] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.24.jar:5.3.24] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.24.jar:5.3.24] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:177) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:891) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1784) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.69.jar:9.0.69] at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
汉语意思
创建新的SqlSession SQL session[org . Apache . ibatis . session . defaults . defaults SQL session @ 24f 6235 e]未注册用于同步，因为同步未处于活动状态 JDBC连接[HikariProxyConnection @ 707910064 wrapping com . MySQL . CJ . JDBC . Connection impl @ 5d a 30678]不会被Spring管理 关闭非事务性SQL session[org . Apache . ibatis . session . defaults . defaults SQL session @ 24f 6235 e] 错误9248-[nio-9090-exec-8]o . a . c . c . c .[。[.[/].[dispatcherServlet]:路径为[]的上下文中的servlet [dispatcherServlet]的Servlet.service()引发异常[请求处理失败；嵌套异常为org . spring framework . Dao . dataintegrityviolationexception: ###更新数据库时出错。原因:java.sql.SQLException:字段“id”没有默认值 ###错误可能存在于zero/file/video project/mappers/user mapper . Java中(最佳猜测) ###该错误可能涉及zero . file . video project . mappers . user mapper . insert-Inline ###设置参数时出错 ### SQL: insert into `user `(用户名、密码、姓名、电话、电子邮件、地址、头像)值(？, ?, ?, ?, ?, ?, ?) ###原因:java.sql.SQLException:字段' id '没有默认值 ；字段“id”没有默认值；嵌套异常是java.sql.SQLException:字段“id”没有默认值]的根本原因 java.sql.SQLException:字段“id”没有默认值
这里出问题，是必须要有一个默认的id值，即Navicate中必须添加自动递增，才行，否则会报错
