400错误 ，url里seckillId显示为undefined

org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver.handleTypeMismatch Failed to bind request element: org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Failed to convert value of type 'java.lang.String' to required type 'java.lang.Long'; nested exception is java.lang.NumberFormatException: For input string: "undefined"