修复报错: java.sql.SQLIntegrityConstraintViolationException: Duplicate entry '1231237230' for key 'student.no' at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:109) ~[mysql-connector-j-9.7.0.jar:9.7.0] at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:114) ~[mysql-connector-j-9.7.0.jar:9.7.0] at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:988) ~[mysql-connector-j-9.7.0.jar:9.7.0] at com.mysql.cj.jdbc.ClientPreparedStatement.execute(ClientPreparedStatement.java:383) ~[mysql-connector-j-9.7.0.jar:9.7.0] at com.zaxxer.hikari.pool.ProxyPreparedStatement.execute(ProxyPreparedStatement.java:44) ~[HikariCP-6.3.3.jar:na] at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.execute(HikariProxyPreparedStatement.java) ~[HikariCP-6.3.3.jar:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[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:568) ~[na:na] at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:58) ~[mybatis-3.5.19.jar:3.5.19] at jdk.proxy3/jdk.proxy3.$Proxy92.execute(Unknown Source) ~[na:na] at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:48) ~[mybatis-3.5.19.jar:3.5.19] at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:75) ~[mybatis-3.5.19.jar:3.5.19] at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:50) ~[mybatis-3.5.19.jar:3.5.19] at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117) ~[mybatis-3.5.19.jar:3.5.19] at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76) ~[mybatis-3.5.19.jar:3.5.19] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na] at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:61) ~[mybatis-3.5.19.jar:3.5.19] at jdk.proxy2/jdk.proxy2.$Proxy90.update(Unknown Source) ~[na:na] at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:197) ~[mybatis-3.5.19.jar:3.5.19] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[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:568) ~[na:na] at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:333) ~[mybatis-spring-3.0.5.jar:3.0.5] at jdk.proxy2/jdk.proxy2.$Proxy69.update(Unknown Source) ~[na:na] at org.mybatis.spring.SqlSessionTemplate.update(SqlSessionTemplate.java:234) ~[mybatis-spring-3.0.5.jar:3.0.5] at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:67) ~[mybatis-3.5.19.jar:3.5.19] at org.apache.ibatis.binding.MapperProxy$PlainMethodInvoker.invoke(MapperProxy.java:141) ~[mybatis-3.5.19.jar:3.5.19] at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:86) ~[mybatis-3.5.19.jar:3.5.19] at jdk.proxy2/jdk.proxy2.$Proxy81.updateById(Unknown Source) ~[na:na] at com.example.service.impl.StudentServiceimpl.update(StudentServiceimpl.java:59) ~[classes/:na] at com.example.controller.StudentController.update(StudentController.java:42) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[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:568) ~[na:na] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:258) ~[spring-web-6.2.18.jar:6.2.18] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:191) ~[spring-web-6.2.18.jar:6.2.18] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118) ~[spring-webmvc-6.2.18.jar:6.2.18] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:991) ~[spring-webmvc-6.2.18.jar:6.2.18] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:896) ~[spring-webmvc-6.2.18.jar:6.2.18] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-6.2.18.jar:6.2.18] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1089) ~[spring-webmvc-6.2.18.jar:6.2.18] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979) ~[spring-webmvc-6.2.18.jar:6.2.18] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-6.2.18.jar:6.2.18] at org.springframework.web.servlet.FrameworkServlet.doPut(FrameworkServlet.java:925) ~[spring-webmvc-6.2.18.jar:6.2.18] at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:593) ~[tomcat-embed-core-10.1.54.jar:6.0] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885) ~[spring-webmvc-6.2.18.jar:6.2.18] at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) ~[tomcat-embed-core-10.1.54.jar:6.0] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:138) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) ~[tomcat-embed-websocket-10.1.54.jar:10.1.54] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:138) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-6.2.18.jar:6.2.18] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.2.18.jar:6.2.18] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:138) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-6.2.18.jar:6.2.18] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.2.18.jar:6.2.18] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:138) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-6.2.18.jar:6.2.18] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.2.18.jar:6.2.18] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:138) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:165) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:88) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:492) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:113) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:83) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:72) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:903) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1797) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:973) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:491) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) ~[tomcat-embed-core-10.1.54.jar:10.1.54] at java.base/java.lang.Thread.run(Thread.java:842) ~[na:na]

结果是Mapper漏了where id = #{id}