HTTP Status 500 – Internal Server Error


Type Exception Report

Message Request processing failed; nested exception is org.springframework.jdbc.BadSqlGrammarException:

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.jdbc.BadSqlGrammarException: 
### Error querying database.  Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'flagname' in 'field list'
### The error may exist in file [/www/wwwroot/www.hotdoger.com/WEB-INF/classes/mappers/FlagMapper.xml]
### The error may involve defaultParameterMap
### The error occurred while setting parameters
### SQL: SELECT   DISTINCT       id,flagname,uid,state   FROM       flag   WHERE       id >= (           SELECT               floor(                   RAND() * (SELECT MAX(id) FROM flag)               )       )   ORDER BY       id   LIMIT 10
### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'flagname' in 'field list'
; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'flagname' in 'field list'
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:655)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:164)
	org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141)
	org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90)
	org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:417)

Root Cause

org.springframework.jdbc.BadSqlGrammarException: 
### Error querying database.  Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'flagname' in 'field list'
### The error may exist in file [/www/wwwroot/www.hotdoger.com/WEB-INF/classes/mappers/FlagMapper.xml]
### The error may involve defaultParameterMap
### The error occurred while setting parameters
### SQL: SELECT   DISTINCT       id,flagname,uid,state   FROM       flag   WHERE       id >= (           SELECT               floor(                   RAND() * (SELECT MAX(id) FROM flag)               )       )   ORDER BY       id   LIMIT 10
### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'flagname' in 'field list'
; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'flagname' in 'field list'
	org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:231)
	org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73)
	org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73)
	org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:371)
	com.sun.proxy.$Proxy17.selectList(Unknown Source)
	org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:198)
	org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:114)
	org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:58)
	org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:43)
	com.sun.proxy.$Proxy22.selectAboutFlaglist(Unknown Source)
	com.web.service.FlagService.getAboutFlaglist(FlagService.java:44)
	com.web.controller.NewsController.showNewsListByFlaginfo(NewsController.java:47)
	sun.reflect.GeneratedMethodAccessor182.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
	org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
	org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
	org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:655)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:164)
	org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141)
	org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90)
	org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:417)

Root Cause

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'flagname' in 'field list'
	sun.reflect.GeneratedConstructorAccessor57.newInstance(Unknown Source)
	sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
	com.mysql.jdbc.Util.getInstance(Util.java:408)
	com.mysql.jdbc.SQLError.createSQLException(SQLError.java:943)
	com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973)
	com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909)
	com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2527)
	com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2680)
	com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2501)
	com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858)
	com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1197)
	org.apache.commons.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172)
	org.apache.commons.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172)
	org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)
	org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)
	org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)
	org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)
	org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)
	org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)
	org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)
	org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)
	org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)
	sun.reflect.GeneratedMethodAccessor110.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358)
	com.sun.proxy.$Proxy17.selectList(Unknown Source)
	org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:198)
	org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:114)
	org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:58)
	org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:43)
	com.sun.proxy.$Proxy22.selectAboutFlaglist(Unknown Source)
	com.web.service.FlagService.getAboutFlaglist(FlagService.java:44)
	com.web.controller.NewsController.showNewsListByFlaginfo(NewsController.java:47)
	sun.reflect.GeneratedMethodAccessor182.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
	org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
	org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
	org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:655)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:164)
	org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141)
	org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90)
	org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:417)

Note The full stack trace of the root cause is available in the server logs.


Apache Tomcat/8.5.81