错误！

Exception in JSP: /homepage/V8/include/issue_course_list.jsp:78 75: } 76: Map map = ZyRequest.getRequestParameterMap(req); 77: String radiovalue = req.getParameter("radiovalue"); 78: if (radiovalue.equals("")){ 79: map.put("perm", mask);//对应的权限（全部） 80: }else{ 81: if (radiovalue.equals("0")){ Stacktrace:！

ServerAddr:	https://wljx.sdwm.cn/meol/
ClientAddr:
ServerTitle:	THEOL
Request URL:	/meol/homepage/V8/include/issue_course_list.jsp
UserName:	guest
Time:	2026年10月24日 16:51:36

net.theol.webutils.filter.ZyVisitFilter	ZyVisitFilter.java	41	doFilter
org.apache.catalina.core.ApplicationFilterChain	ApplicationFilterChain.java	215	internalDoFilter
org.apache.catalina.core.ApplicationFilterChain	ApplicationFilterChain.java	188	doFilter
org.apache.catalina.core.StandardWrapperValve	StandardWrapperValve.java	213	invoke
org.apache.catalina.core.StandardContextValve	StandardContextValve.java	172	invoke
org.apache.catalina.authenticator.AuthenticatorBase	AuthenticatorBase.java	470	invoke
org.apache.catalina.valves.AccessLogValve	AccessLogValve.java	581	invoke
org.apache.catalina.core.StandardHostValve	StandardHostValve.java	127	invoke
org.apache.catalina.valves.ErrorReportValve	ErrorReportValve.java	117	invoke
org.apache.catalina.core.StandardEngineValve	StandardEngineValve.java	108	invoke
org.apache.catalina.connector.CoyoteAdapter	CoyoteAdapter.java	174	service
org.apache.jk.server.JkCoyoteHandler	JkCoyoteHandler.java	200	invoke
org.apache.jk.common.HandlerRequest	HandlerRequest.java	291	invoke
org.apache.jk.common.ChannelSocket	ChannelSocket.java	775	invoke
org.apache.jk.common.ChannelSocket	ChannelSocket.java	704	processConnection
org.apache.jk.common.ChannelSocket$SocketConnection	ChannelSocket.java	897	runIt
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable	ThreadPool.java	689	run
java.lang.Thread	Thread.java	745	run