严重: Servlet.service() for servlet [ss] in context with path [/bank] threw exception [Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.executor.ExecutorException: Statement returned more than one row, where no more than one was expected.] with root cause org.apache.ibatis.executor.ExecutorException: Statement returned more than one row, where no more than one was expected. at org.apache.ibatis.executor.ResultExtractor.extractObjectFromList(ResultExtractor.java:58) at org.apache.ibatis.executor.loader.ResultLoader.loadResult(ResultLoader.java:71) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getNestedQueryMappingValue(DefaultResultSetHandler.java:650) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getPropertyMappingValue(DefaultResultSetHandler.java:404) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.applyPropertyMappings(DefaultResultSetHandler.java:384) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:346) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForSimpleResultMap(DefaultResultSetHandler.java:298) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:273) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:246) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:160) at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:63) at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:78) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:303) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:154) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:102) at org.apache.ibatis.executor.loader.ResultLoader.selectList(ResultLoader.java:81) at org.apache.ibatis.executor.loader.ResultLoader.loadResult(ResultLoader.java:70) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getNestedQueryMappingValue(DefaultResultSetHandler.java:650) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getPropertyMappingValue(DefaultResultSetHandler.java:404) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.applyPropertyMappings(DefaultResultSetHandler.java:384) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:346) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForSimpleResultMap(DefaultResultSetHandler.java:298) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:273) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:246) at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:160) at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:63) at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:78) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:303) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:154) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:102) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:82) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.ibatis.plugin.Invocation.proceed(Invocation.java:49) at com.github.pagehelper.util.SqlUtil.doIntercept(SqlUtil.java:175) at com.github.pagehelper.util.SqlUtil.intercept(SqlUtil.java:84) at com.github.pagehelper.PageHelper.intercept(PageHelper.java:50) at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:61) at com.sun.proxy.Proxy44.query(UnknownSource)atorg.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:120)atorg.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:113)atsun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)atsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)atjava.lang.reflect.Method.invoke(Method.java:498)atorg.mybatis.spring.SqlSessionTemplateSqlSessionInterceptor.invoke(SqlSessionTemplate.java:386) at com.sun.proxy.Proxy13.selectList(UnknownSource)atorg.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:205)atorg.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:122)atorg.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:64)atorg.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53)atcom.sun.proxy.Proxy24.selectAll(Unknown Source) at geh.com.serviceimpl.LoanServiceImpl.getALl(LoanServiceImpl.java:65) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) at com.sun.proxy.Proxy32.getALl(UnknownSource)atgeh.com.web.ShenheController.loaninfo(ShenheController.java:265)atsun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)atsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)atjava.lang.reflect.Method.invoke(Method.java:498)atorg.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)atorg.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)atorg.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)atorg.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)atorg.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)atorg.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)atorg.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)atorg.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)atorg.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)atorg.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)atjavax.servlet.http.HttpServlet.service(HttpServlet.java:634)atorg.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)atjavax.servlet.http.HttpServlet.service(HttpServlet.java:741)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)atorg.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)atorg.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)atorg.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)atorg.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)atorg.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)atorg.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)atorg.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)atorg.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)atorg.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:651)atorg.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)atorg.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)atorg.apache.coyote.http11.Http11Processor.service(Http11Processor.java:501)atorg.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)atorg.apache.coyote.AbstractProtocolConnectionHandler.process(AbstractProtocol.java:754) at org.apache.tomcat.util.net.NioEndpointSocketProcessor.doRun(NioEndpoint.java:1376)atorg.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)atjava.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)atjava.util.concurrent.ThreadPoolExecutorWorker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) 网上找了好多方式,有说out,流冲突,有说session找不到,有说response找不到的,但我页面啥也没动,就在java类写了几个方法就这样了,本以为是session找不到,结果项目重启也不行,。。。。。。。。哪位大神能解答解答??