紧急求救

[czyl0809]

请问下面这个报错是什么意思？
type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Comm.DBConn.Update(Ljava/lang/String;Ljava/sql/Connection;)V
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:845)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:778)
org.apache.jsp.test_jsp._jspService(test_jsp.java:92)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.jspdev.ch8.EncodingFilter.doFilter(EncodingFilter.java:36)


root cause

java.lang.NoSuchMethodError: Comm.DBConn.Update(Ljava/lang/String;Ljava/sql/Connection;)V
org.apache.jsp.test_jsp._jspService(test_jsp.java:71)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.jspdev.ch8.EncodingFilter.doFilter(EncodingFilter.java:36)

[hcom]

java.lang.NoSuchMethodError:
如果某应用试图调用类（静态或实例化）的指定方法，而该类没有该方法的定义时抛出。