【bug生產解決】在使用fastmybatis時,查詢表格出現問題

【bug生產解決】在使用fastmybatis時,查詢表格出現問題

錯誤顯示

1、請求頁面
This application has no explicit mapping for /error, so you are seeing this as a fallback.

Fri Dec 06 10:05:26 CST 2019
There was an unexpected error (type=Internal Server Error, status=500).
Error querying database. Cause: java.sql.SQLSyntaxErrorException: Incorrect table name ‘’
The error may exist in Byte array resource [com.xcl.fastmybatis.mapper.OrderMapper]
The error may involve com.xcl.fastmybatis.mapper.OrderMapper.list-Inline
The error occurred while setting parameters SQL: SELECT t.id , t.price , t.user_id , t.goods FROM `` t LIMIT ?,? Cause: java.sql.SQLSyntaxErrorException: Incorrect table name ‘’ ; bad SQL grammar []; nested exception is java.sql.SQLSyntaxErrorException: Incorrect table name ‘’

2、後端顯示
Error querying database. Cause: java.sql.SQLSyntaxErrorException: Incorrect table name ‘’
The error may exist in Byte array resource [com.xcl.fastmybatis.mapper.OrderMapper]
The error may involve com.xcl.fastmybatis.mapper.OrderMapper.list-Inline
The error occurred while setting parameters
SQL: SELECT t.id , t.price , t.user_id , t.goods FROM `` t LIMIT ?,?
Cause: java.sql.SQLSyntaxErrorException: Incorrect table name ‘’
; bad SQL grammar []; nested exception is java.sql.SQLSyntaxErrorException: Incorrect table name ‘’] with root cause
java.sql.SQLSyntaxErrorException: Incorrect table name ‘’ at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120) ~[mysql-connector-java-8.0.18.jar:8.0.18 at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.18.jar:8.0.18] at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-java-8.0.18.jar:8.0.18 at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:953) ~[mysql-connector-java-8.0.18.jar:8.0.18] at com.mysql.cj.jdbc.ClientPreparedStatement.execute(ClientPreparedStatement.java:370) ~[mysql-connector-java-8.0.18.jar:8.0.18] at com.zaxxer.hikari.pool.ProxyPreparedStatement.execute(ProxyPreparedStatement.java:44) ~[HikariCP-3.4.1.jar:na] at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.execute(HikariProxyPreparedStatement.java) ~[HikariCP-3.4.1.jar:na]
at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:63) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:326) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) ~[mybatis-3.4.6.jar:3.4.6]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_171]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_171]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_171]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_171]
at org.mybatis.spring.SqlSessionTemplateSqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) [mybatisspring1.3.2.jar:1.3.2]atcom.sun.proxy.SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) ~[mybatis-spring-1.3.2.jar:1.3.2] at com.sun.proxy.Proxy66.selectList(Unknown Source) ~[na:na]
at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:230) ~[mybatis-spring-1.3.2.jar:1.3.2]
at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:139) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:76) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59) ~[mybatis-3.4.6.jar:3.4.6]
at com.sun.proxy.Proxy67.list(UnknownSource) [na:na]atcom.xcl.fastmybatis.controller.OrderController.page1(OrderController.java:22) [classes/:na]atsun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod) [na:1.8.0171]atsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [na:1.8.0171]atsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [na:1.8.0171]atjava.lang.reflect.Method.invoke(Method.java:498) [na:1.8.0171]atorg.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) [springweb5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) [springweb5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) [springwebmvc5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888) [springwebmvc5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) [springwebmvc5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) [springwebmvc5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) [springwebmvc5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) [springwebmvc5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [springwebmvc5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) [springwebmvc5.2.1.RELEASE.jar:5.2.1.RELEASE]atjavax.servlet.http.HttpServlet.service(HttpServlet.java:634) [tomcatembedcore9.0.27.jar:9.0.27]atorg.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [springwebmvc5.2.1.RELEASE.jar:5.2.1.RELEASE]atjavax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcatembedwebsocket9.0.27.jar:9.0.27]atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcatembedcore9.0.27.jar:9.0.27]atorg.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [springweb5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [springweb5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcatembedcore9.0.27.jar:9.0.27]atorg.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [springweb5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [springweb5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcatembedcore9.0.27.jar:9.0.27]atorg.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [springweb5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [springweb5.2.1.RELEASE.jar:5.2.1.RELEASE]atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) [tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)[tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526)[tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)[tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)[tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)[tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)[tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)[tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)[tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.coyote.AbstractProtocolProxy67.list(Unknown Source) ~[na:na] at com.xcl.fastmybatis.controller.OrderController.page1(OrderController.java:22) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_171] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_171] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_171] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_171] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.1.RELEASE.jar:5.2.1.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.27.jar:9.0.27] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526) [tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.coyote.AbstractProtocolConnectionHandler.process(AbstractProtocol.java:861) [tomcat-embed-core-9.0.27.jar:9.0.27]
at org.apache.tomcat.util.net.NioEndpointSocketProcessor.doRun(NioEndpoint.java:1579)[tomcatembedcore9.0.27.jar:9.0.27]atorg.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)[tomcatembedcore9.0.27.jar:9.0.27]atjava.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)[na:1.8.0171]atjava.util.concurrent.ThreadPoolExecutorSocketProcessor.doRun(NioEndpoint.java:1579) [tomcat-embed-core-9.0.27.jar:9.0.27] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.27.jar:9.0.27] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_171] at java.util.concurrent.ThreadPoolExecutorWorker.run(ThreadPoolExecutor.java:624) [na:1.8.0_171]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.27.jar:9.0.27]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_171]

原因

在對象映射關係中,@Table註解的name和數據庫表的名稱要一一對應,不能選擇默認的,默認爲空。
錯誤的方式
在這裏插入圖片描述
正確的方式
在這裏插入圖片描述
請求正確的顯示
在這裏插入圖片描述

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