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进入会议后端异常

老师，进入会议的时候出现JDBC错误，这什么问题呢？

Creating a new SqlSession

SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@53b255e] was not registered for synchronization because synchronization is not active

JDBC Connection [com.mysql.cj.jdbc.ConnectionImpl@6b77004b] will not be managed by Spring

==> Preparing: SELECT id, open_id, nickname, photo, name, sex, tel, role, root, dept_id, status, create_time FROM tb_user WHERE id=? AND status=1

==> Parameters: 15(Integer)

<== Columns: id, open_id, nickname, photo, name, sex, tel, role, root, dept_id, status, create_time

<== Row: 15, o060E5BWEeEMHvwgbGtj_5NLRNxo, Agre, https://thirdwx.qlogo.cn/mmopen/vi_32/hh2c8RvfFfPNCjv9qff5NcjEUhWqXTzicdAMRpAgYNic5oZxELc5H06LaI2SfXRgibsEgSSxfk0DVliclyoJ9oF5GQ/132, 冯鹏, 男, 13359383250, <<BLOB>>, 1, 1, 1, 2021-10-17 16:10:52

<== Total: 1

Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@53b255e]

10:58:39 ERROR 执行异常

java.lang.NullPointerException: null

at com.example.emos.wx.service.impl.MeetingServiceImpl.searchRoomIdByUUID(MeetingServiceImpl.java:142)

at com.example.emos.wx.controller.MeetingController.searchRoomIdByUUID(MeetingController.java:142)

at com.example.emos.wx.controller.MeetingController$$FastClassBySpringCGLIB$$abe39e21.invoke(<generated>)

at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:779)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750)

at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:89)

at com.example.emos.wx.aop.TokenAspect.around(TokenAspect.java:25)

at jdk.internal.reflect.GeneratedMethodAccessor91.invoke(Unknown Source)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:567)

at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:634)

at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:624)

at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:72)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750)

at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750)

at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:692)

at com.example.emos.wx.controller.MeetingController$$EnhancerBySpringCGLIB$$5de4c3e7.searchRoomIdByUUID(<generated>)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:567)

at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197)

at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141)

at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894)

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)

at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1063)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)

at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:681)

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:764)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)

at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)

at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)

at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)

at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)

at com.example.emos.wx.config.shiro.OAuth2Filter.doFilterInternal(OAuth2Filter.java:127)

at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)

at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)

at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)

at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)

at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)

at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)

at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)

at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)