当我编辑jp.getArgs（）并运行jp.Proceed（）时，ProceedingJoinPoint AspectJ方面会崩溃我的web-app(ProceedingJoinPoint AspectJ aspect crashes my web-app when I edit jp.getArgs() and run jp.Proceed())
java
Spring
我试图改变传递给JdbcOperation查询方法的参数。 基本上，需要更改传递给jdbcTemplate.query（）方法的第一个参数（String）的SQL语句。 我想在一个额外的SQL SELECT中包含任何语句。 在DB后端运行时或者我对其进行硬编码时，SELECT工作正常。 我认为在编辑jp.getArgs（）[0]之后调用jp.Proceed（）之后，query（）正在自动填充参数。 您可以从导致java.lang.NullPointerException的日志条目中看到它。 我认为NullPointerException是从Query（猜测）返回零行的结果。 就好像在数据库中执行查询时，Aspect中更改的参数无法通过。
我的SqlLoggerAspect Aspect看起来像这样：
@Around("execution(* org.springframework.jdbc.core.JdbcOperations.*(String, ..))") public void log(final ProceedingJoinPoint jp) throws Throwable { Object[] methodArgs = jp.getArgs(), sqlArgs = null; CustomUser customUser = (CustomUser) SecurityContextHolder.getContext().getAuthentication().getPrincipal(); methodArgs[0] = new String ("SELECT * FROM (" + methodArgs[0] + ") AS domain_object WHERE (ktn = "+ customUser.getKtn() +") OR (ktn is NULL)"); jp.proceed(methodArgs); }这是我查询数据库的方式：
sySectionsList.addAll(jdbcTemplate.query("SELECT * FROM sy_section WHERE stn_code=?", sySectionMapper, sySection.getStn_code()));我的Spring Bean配置看起来像这样：
<aop:aspectj-autoproxy proxy-target-class="true"> <aop:include name = "sqlLogger"/> </aop:aspectj-autoproxy> <aop:config proxy-target-class="true"> </aop:config> <bean id="sqlLogger" class="ie.cit.pro.aspects.SqlLoggerAspect" />这一切都导致一个完美形成的SQL语句（我可以在调用jp.Proceed（）之后在TRACE日志中看到），当我在数据库后端执行或在应用程序中对其进行硬编码时，它可以正常工作。 但是我得到一个NullPointerException，我认为可能是因为在运行时没有记录返回到我的RowMapper。 我的错误如下：
DEBUG 2014-02-04 06:42:14,769 org.springframework.jdbc.core.JdbcTemplate - Executing prepared SQL query DEBUG 2014-02-04 06:42:14,769 org.springframework.jdbc.core.JdbcTemplate - Executing prepared SQL statement [SELECT * FROM (SELECT * FROM sy_section WHERE stn_code=?) AS domain_object WHERE (ktn = 1) OR (ktn is NULL)] DEBUG 2014-02-04 06:42:14,769 org.springframework.jdbc.datasource.DataSourceUtils - Fetching JDBC Connection from DataSource DEBUG 2014-02-04 06:42:14,769 org.springframework.jdbc.datasource.SimpleDriverDataSource - Creating new JDBC Driver Connection to [jdbc:h2:mem:dataSource;DB_CLOSE_DELAY=-1] TRACE 2014-02-04 06:42:14,771 org.springframework.jdbc.core.StatementCreatorUtils - Setting SQL statement parameter value: column index 1, parameter value [-WFBWLD101], value class [java.lang.String], SQL type unknown DEBUG 2014-02-04 06:42:14,773 org.springframework.jdbc.datasource.DataSourceUtils - Returning JDBC Connection to DataSource DEBUG 2014-02-04 06:42:14,774 org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver - Resolving exception from handler [public java.lang.String ie.cit.pro.web.FbController.weldtrack(org.springframework.ui.Model,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,java.lang.String)]: java.lang.NullPointerException DEBUG 2014-02-04 06:42:14,777 org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver - Resolving exception from handler [public java.lang.String ie.cit.pro.web.FbController.weldtrack(org.springframework.ui.Model,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,java.lang.String)]: java.lang.NullPointerException DEBUG 2014-02-04 06:42:14,777 org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver - Resolving exception from handler [public java.lang.String ie.cit.pro.web.FbController.weldtrack(org.springframework.ui.Model,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,java.lang.String)]: java.lang.NullPointerException TRACE 2014-02-04 06:42:14,777 org.springframework.web.servlet.DispatcherServlet - Cleared thread-bound request context: SecurityContextHolderAwareRequestWrapper[ org.springframework.security.web.savedrequest.SavedRequestAwareWrapper@4e57dc21] DEBUG 2014-02-04 06:42:14,778 org.springframework.web.servlet.DispatcherServlet - Could not complete request java.lang.NullPointerException at ie.cit.pro.domain.dao.JdbcDataRepository.getSySectionsByCode(JdbcDataRepository.java:127) at ie.cit.pro.domain.dao.JdbcDataRepository$$FastClassByCGLIB$$1a306ee2.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:51) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:64) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631) at ie.cit.pro.domain.dao.JdbcDataRepository$$EnhancerByCGLIB$$c8a61982.getSySectionsByCode(<generated>) at ie.cit.pro.services.SyServiceImpl.getSySectionsByCode(SyServiceImpl.java:45) at ie.cit.pro.services.SyServiceImpl$$FastClassByCGLIB$$4c45712.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:627) at ie.cit.pro.services.SyServiceImpl$$EnhancerByCGLIB$$9e7f5ebf.getSySectionsByCode(<generated>) at ie.cit.pro.web.FbController.weldtrack(FbController.java:81) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter.doFilter(DefaultLoginPageGeneratingFilter.java:91) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) at java.lang.Thread.run(Thread.java:695)I am trying to alter an argument in being passed to a JdbcOperation query method. Basically the SQL Statement that is the 1st parameter (String) being passed to the jdbcTemplate.query() Method needs to be altered. I want to surround any statement in an additional SQL SELECT. The SELECT works fine when run on the DB backend OR when I hard code it. I think the arguments are being auto filled correctly by query() after the jp.Proceed() is called after I edit jp.getArgs()[0]. You can see that from the Log Entries that lead up to the java.lang.NullPointerException. I think the NullPointerException is a result of zero rows being returned from the Query (guess). It's as if the arguments that are altered in the Aspect aren't getting through when the query is executed on the Database.
My SqlLoggerAspect Aspect looks like this:
@Around("execution(* org.springframework.jdbc.core.JdbcOperations.*(String, ..))") public void log(final ProceedingJoinPoint jp) throws Throwable { Object[] methodArgs = jp.getArgs(), sqlArgs = null; CustomUser customUser = (CustomUser) SecurityContextHolder.getContext().getAuthentication().getPrincipal(); methodArgs[0] = new String ("SELECT * FROM (" + methodArgs[0] + ") AS domain_object WHERE (ktn = "+ customUser.getKtn() +") OR (ktn is NULL)"); jp.proceed(methodArgs); }Here's how I Query the Database:
sySectionsList.addAll(jdbcTemplate.query("SELECT * FROM sy_section WHERE stn_code=?", sySectionMapper, sySection.getStn_code()));My Spring Bean Config looks like this:
<aop:aspectj-autoproxy proxy-target-class="true"> <aop:include name = "sqlLogger"/> </aop:aspectj-autoproxy> <aop:config proxy-target-class="true"> </aop:config> <bean id="sqlLogger" class="ie.cit.pro.aspects.SqlLoggerAspect" />This all results in a perfectly formed SQL Statement (which I can see in the TRACE Log after the jp.Proceed() is called) that works fine when I execute on the DB backend OR when I hardcode it in the application. However i Get a NullPointerException which I think could be because at runtime no records are being returned to my RowMapper. My Error is as follows:
DEBUG 2014-02-04 06:42:14,769 org.springframework.jdbc.core.JdbcTemplate - Executing prepared SQL query DEBUG 2014-02-04 06:42:14,769 org.springframework.jdbc.core.JdbcTemplate - Executing prepared SQL statement [SELECT * FROM (SELECT * FROM sy_section WHERE stn_code=?) AS domain_object WHERE (ktn = 1) OR (ktn is NULL)] DEBUG 2014-02-04 06:42:14,769 org.springframework.jdbc.datasource.DataSourceUtils - Fetching JDBC Connection from DataSource DEBUG 2014-02-04 06:42:14,769 org.springframework.jdbc.datasource.SimpleDriverDataSource - Creating new JDBC Driver Connection to [jdbc:h2:mem:dataSource;DB_CLOSE_DELAY=-1] TRACE 2014-02-04 06:42:14,771 org.springframework.jdbc.core.StatementCreatorUtils - Setting SQL statement parameter value: column index 1, parameter value [-WFBWLD101], value class [java.lang.String], SQL type unknown DEBUG 2014-02-04 06:42:14,773 org.springframework.jdbc.datasource.DataSourceUtils - Returning JDBC Connection to DataSource DEBUG 2014-02-04 06:42:14,774 org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver - Resolving exception from handler [public java.lang.String ie.cit.pro.web.FbController.weldtrack(org.springframework.ui.Model,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,java.lang.String)]: java.lang.NullPointerException DEBUG 2014-02-04 06:42:14,777 org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver - Resolving exception from handler [public java.lang.String ie.cit.pro.web.FbController.weldtrack(org.springframework.ui.Model,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,java.lang.String)]: java.lang.NullPointerException DEBUG 2014-02-04 06:42:14,777 org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver - Resolving exception from handler [public java.lang.String ie.cit.pro.web.FbController.weldtrack(org.springframework.ui.Model,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,java.lang.String)]: java.lang.NullPointerException TRACE 2014-02-04 06:42:14,777 org.springframework.web.servlet.DispatcherServlet - Cleared thread-bound request context: SecurityContextHolderAwareRequestWrapper[ org.springframework.security.web.savedrequest.SavedRequestAwareWrapper@4e57dc21] DEBUG 2014-02-04 06:42:14,778 org.springframework.web.servlet.DispatcherServlet - Could not complete request java.lang.NullPointerException at ie.cit.pro.domain.dao.JdbcDataRepository.getSySectionsByCode(JdbcDataRepository.java:127) at ie.cit.pro.domain.dao.JdbcDataRepository$$FastClassByCGLIB$$1a306ee2.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:51) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:64) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631) at ie.cit.pro.domain.dao.JdbcDataRepository$$EnhancerByCGLIB$$c8a61982.getSySectionsByCode(<generated>) at ie.cit.pro.services.SyServiceImpl.getSySectionsByCode(SyServiceImpl.java:45) at ie.cit.pro.services.SyServiceImpl$$FastClassByCGLIB$$4c45712.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:627) at ie.cit.pro.services.SyServiceImpl$$EnhancerByCGLIB$$9e7f5ebf.getSySectionsByCode(<generated>) at ie.cit.pro.web.FbController.weldtrack(FbController.java:81) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter.doFilter(DefaultLoginPageGeneratingFilter.java:91) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) at java.lang.Thread.run(Thread.java:695)最满意答案
你的方面是错的。 你从@Around方法返回void ，使得这个方面所触及的每个方法都返回null 。
方面必须始终返回Object并且必须始终将调用结果返回到proceed() 。 如果你不这样做，你会遇到麻烦。
@Around("execution(* org.springframework.jdbc.core.JdbcOperations.*(String, ..))") public Object log(final ProceedingJoinPoint jp) throws Throwable { Object[] methodArgs = jp.getArgs(), sqlArgs = null; CustomUser customUser = (CustomUser) SecurityContextHolder.getContext().getAuthentication().getPrincipal(); methodArgs[0] = new String ("SELECT * FROM (" + methodArgs[0] + ") AS domain_object WHERE (ktn = "+ customUser.getKtn() +") OR (ktn is NULL)"); return jp.proceed(methodArgs);}
Your aspect is wrong. You are returning void from your @Around method making every method that this aspect touches return null.
Around aspects must always return Object and you must always return the result of the call to proceed(). If you don't you will run into trouble.
@Around("execution(* org.springframework.jdbc.core.JdbcOperations.*(String, ..))") public Object log(final ProceedingJoinPoint jp) throws Throwable { Object[] methodArgs = jp.getArgs(), sqlArgs = null; CustomUser customUser = (CustomUser) SecurityContextHolder.getContext().getAuthentication().getPrincipal(); methodArgs[0] = new String ("SELECT * FROM (" + methodArgs[0] + ") AS domain_object WHERE (ktn = "+ customUser.getKtn() +") OR (ktn is NULL)"); return jp.proceed(methodArgs);}
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