java.lang.NoSuchFieldError: deferredExpression

javax.servlet.ServletException: java.lang.NoSuchFieldError: deferredExpression
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:274)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069)
org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:274)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455)
org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:320)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.extremecomponents.table.filter.AbstractExportFilter.doFilter(AbstractExportFilter.java:50)
jreap.core.SystemFilter.doFilter(SystemFilter.java:71)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:75)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174)
jreap.core.OpenSessionInViewFilterImpl.doFilterInternal(OpenSessionInViewFilterImpl.java:19)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)

lib下面有多个版本的jstl.jar包,如果有 只留下一个版本的jstl.jar包即可

bean.studentscore cannot be cast to java.util.list 一个模型 无法转换成list 你的方法返回的应该是一个model 而不是list 如果是list 那你应该返回的是list[0]