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Hi, everybody here: I got problems using zk jsp tag.
related code:
in main.jsp <%@ taglib prefix="z" uri="http://www.zkoss.org/jsp/zul" %> <%@ taglib prefix="security" uri="http://www.springframework.org/security/tags" %>
<html> <head> <title>管理主畫面</title> </head> <body> <z:page> 登入帳號：<security:authentication property="principal.username"/> <z:button label="登出" href="../j_spring_security_logout"/> <z:zscript> import ... ... import org.zkoss.zkplus.spring.SpringUtil;
MainComposer mainComposer = new MainComposer();
EmployeeDAO employeeDAO = (EmployeeDAO)SpringUtil.getBean("employeeDAO");
CompanyDAO companyDAO = (CompanyDAO)SpringUtil.getBean("companyDAO");
mainComposer.setEmployeeDAO(employeeDAO);
mainComposer.setCompanyDAO(companyDAO);
</z:zscript> <z:window apply="${mainComposer}"> </z:window>
Servlet.service() for servlet jsp threw exception java.lang.NullPointerException at org.zkoss.jsp.zul.impl.LeafTag.setDynamicAttribute(LeafTag.java:246) at org.apache.jsp.management.mainjsp.jspxmethz005fwindow005f0(mainjsp.java:150) at org.apache.jsp.management.mainjsp.access$3(mainjsp.java:142) at org.apache.jsp.management.mainjsp$mainjspHelper.invoke0(mainjsp.java:962) at org.apache.jsp.management.mainjsp$mainjspHelper.invoke(mainjsp.java:1217) at org.zkoss.jsp.zul.impl.RootTag$MyRichlet.service(RootTag.java:300) at org.zkoss.zk.ui.impl.UiEngineImpl.execNewPage0(UiEngineImpl.java:398) at org.zkoss.zk.ui.impl.UiEngineImpl.execNewPage(UiEngineImpl.java:292) at org.zkoss.jsp.zul.impl.RootTag.doTag(RootTag.java:268) at org.apache.jsp.management.mainjsp.jspxmethz005fpage005f0(mainjsp.java:93) at org.apache.jsp.management.mainjsp.jspService(main_jsp.java:68) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:378) at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109) at org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) at org.springframework.security.ui.SessionFixationProtectionFilter.doFilterHttp(SessionFixationProtectionFilter.java:67) at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) at org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101) at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) at org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91) at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:277) at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) at org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:89) at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235) at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390) at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:175) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:183) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:138) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Unknown Source)
the system can load the page normally only with zscript, so I think zscript is correct. but after I add apply="${mainComposer}" to window, the system show lots exception like above. I found ZK JSP Tags User Guide said that apply attribute is fully supported.
I use zk JSP 1.3.
Can someone help me?