java.lang.IllegalArgumentException:Path admin/admin-up.jsp d

java.lang.IllegalArgumentException:Path admin/admin_up.jsp does not start with a "/" character
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1056)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:386)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.cn.fjnl.charsetFilter.CharsetFilter.doFilter(CharsetFilter.java:29)