springboot+mybatis，识别数据库字段时出错，文本识别成数字

Question

springboot+mybatis，识别数据库字段时出错，文本识别成数字

实体字段截图

数据库字段截图

报错信息

2022-12-28 16:09:28.225 ERROR 11284 --- [nio-8068-exec-1] 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.jdbc.UncategorizedSQLException: Error attempting to get column 'group_name' from result set.  Cause: java.sql.SQLException: Error
; uncategorized SQLException; SQL state [null]; error code [0]; Error; nested exception is java.sql.SQLException: Error] with root cause

java.lang.NumberFormatException: For input string: "￥ﾛﾽ￥ﾆﾅ￦ﾖﾰ￩ﾗﾻ;￥ﾛﾽ￥ﾆﾅ￨ﾮﾺ￥ﾝﾛ;￥ﾛﾽ￥ﾆﾅ￥ﾍﾚ￥ﾮﾢ;￥ﾛﾽ￥ﾆﾅ￦ﾖﾰ￩ﾗﾻ_￧ﾔﾵ￥ﾭﾐ￦ﾊﾥ;￥ﾛﾽ￥ﾆﾅ￦ﾖﾰ￩ﾗﾻ_￦ﾉﾋ￦ﾜﾺ￥ﾮﾢ￦ﾈﾷ￧ﾫﾯ;￥ﾛﾽ￥ﾤﾖ￦ﾖﾰ￩ﾗﾻ;￥ﾾﾮ￤﾿ﾡ;￥ﾛﾽ￥ﾆﾅ￥ﾾﾮ￤﾿ﾡ;￥ﾾﾮ￥ﾍﾚ;￥ﾛﾽ￥ﾆﾅ￥ﾾﾮ￥ﾍﾚ;Twitter;FaceBook;￨ﾧﾆ￩ﾢﾑ;￥ﾛﾽ￥ﾆﾅ￨ﾧﾆ￩ﾢﾑ;￧ﾟﾭ￨ﾧﾆ￩ﾢﾑ;￦ﾙﾮ￩ﾀﾚ￧ﾽﾑ￧ﾫﾙ"
    at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2043) ~[na:1.8.0_211]
    at sun.misc.FloatingDecimal.parseDouble(FloatingDecimal.java:110) ~[na:1.8.0_211]
    at java.lang.Double.parseDouble(Double.java:538) ~[na:1.8.0_211]
    at com.mysql.cj.protocol.a.MysqlTextValueDecoder.getDouble(MysqlTextValueDecoder.java:240) ~[mysql-connector-java-8.0.22.jar:8.0.22]
    at com.mysql.cj.result.BooleanValueFactory.createFromBytes(BooleanValueFactory.java:107) ~[mysql-connector-java-8.0.22.jar:8.0.22]
    at com.mysql.cj.result.BooleanValueFactory.createFromBytes(BooleanValueFactory.java:47) ~[mysql-connector-java-8.0.22.jar:8.0.22]
    at com.mysql.cj.protocol.a.MysqlTextValueDecoder.decodeByteArray(MysqlTextValueDecoder.java:134) ~[mysql-connector-java-8.0.22.jar:8.0.22]
    at com.mysql.cj.protocol.result.AbstractResultsetRow.decodeAndCreateReturnValue(AbstractResultsetRow.java:133) ~[mysql-connector-java-8.0.22.jar:8.0.22]
    at com.mysql.cj.protocol.result.AbstractResultsetRow.getValueFromBytes(AbstractResultsetRow.java:241) ~[mysql-connector-java-8.0.22.jar:8.0.22]
    at com.mysql.cj.protocol.a.result.TextBufferRow.getValue(TextBufferRow.java:132) ~[mysql-connector-java-8.0.22.jar:8.0.22]
    at com.mysql.cj.jdbc.result.ResultSetImpl.getObject(ResultSetImpl.java:1281) ~[mysql-connector-java-8.0.22.jar:8.0.22]
    at com.mysql.cj.jdbc.result.ResultSetImpl.getBoolean(ResultSetImpl.java:674) ~[mysql-connector-java-8.0.22.jar:8.0.22]
    at com.mysql.cj.jdbc.result.ResultSetImpl.getBoolean(ResultSetImpl.java:680) ~[mysql-connector-java-8.0.22.jar:8.0.22]
    at com.alibaba.druid.pool.DruidPooledResultSet.getBoolean(DruidPooledResultSet.java:265) ~[druid-1.2.8.jar:1.2.8]
    at org.apache.ibatis.type.BooleanTypeHandler.getNullableResult(BooleanTypeHandler.java:37) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.type.BooleanTypeHandler.getNullableResult(BooleanTypeHandler.java:26) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.type.BaseTypeHandler.getResult(BaseTypeHandler.java:85) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createUsingConstructor(DefaultResultSetHandler.java:711) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createByConstructorSignature(DefaultResultSetHandler.java:694) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createResultObject(DefaultResultSetHandler.java:658) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createResultObject(DefaultResultSetHandler.java:631) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:398) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForSimpleResultMap(DefaultResultSetHandler.java:355) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:329) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:302) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:195) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:65) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:325) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:89) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:151) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:145) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140) ~[mybatis-3.5.9.jar:3.5.9]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_211]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_211]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_211]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_211]
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:427) ~[mybatis-spring-2.0.7.jar:2.0.7]
    at com.sun.proxy.$Proxy61.selectList(Unknown Source) ~[na:na]
    at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:224) ~[mybatis-spring-2.0.7.jar:2.0.7]
    at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:147) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:80) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.binding.MapperProxy$PlainMethodInvoker.invoke(MapperProxy.java:145) ~[mybatis-3.5.9.jar:3.5.9]
    at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:86) ~[mybatis-3.5.9.jar:3.5.9]
    at com.sun.proxy.$Proxy74.selectByNotRegion(Unknown Source) ~[na:na]
    at com.trs.qzdataextend.controller.TestController.testMapper(TestController.java:55) ~[classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_211]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_211]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_211]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_211]
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) ~[tomcat-embed-core-9.0.41.jar:4.0.FR]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.41.jar:4.0.FR]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) [tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) [tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) [tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) [tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:888) [tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1597) [tomcat-embed-core-9.0.41.jar:9.0.41]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.41.jar:9.0.41]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_211]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_211]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.41.jar:9.0.41]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_211]

Answer 1

看起来你的代码在尝试从 SQL 查询的结果集中检索 group_name 列的值时遇到了错误。错误的根本原因是 NumberFormatException，当无效字符串传递给期望数字输入的方法时会发生此异常。

错误消息提到，输入字符串是一串看起来不是数字或有效字符串的字符。这表明，数据库中的数据或查询的构造方式可能存在问题。

为了解决此问题，你可以尝试以下步骤：

检查数据库中表的模式，以确保 group_name 列的数据类型正确。如果列应该是字符串，请确保它不被视为数字值。

检查用于检索数据的 SQL 查询。确保查询正确地指定 group_name 列，并且所有表和列名都拼写正确。

如果问题仍然存在，你可能想尝试打印出结果集中 group_name 列的值，看看它是否被正确检索。你可以通过在发生错误之前添加一些调试代码来实现这一点，调试代码会打印出 group_name 列的值。

如果问题仍未解决，你可能希望考虑检查数据库服务器的日志，看看是否有关于可能导致问题的任何其他线索。

希望这对你有帮助！