javaweb上传文件出错

Question

java.lang.NoSuchMethodError:
'javax.servlet.http.HttpServletMapping javax.servlet.http.HttpServletRequest.getHttpServletMapping()'
servlet.uploadServlet.doPost(uploadServlet.java:46)
javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

46行：req.getRequestDispatcher("success.jsp").forward(req,resp);不知道错在哪里了

Answer 1

代码也贴出来吧，form 和serverlet