不知道什么原因出现异常

来源：互联网发布：淘宝孔雀舞服装编辑：程序博客网时间：2024/04/26 15:01

type Exception report

message An exception occurred processing JSP page /dologin.jsp at line 16

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

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /dologin.jsp at line 1613:     String pwd = (String)session.getAttribute("password");    //淇濆瓨瀵嗙爜14: 15: 16: StuBean stu = OperateStu.getStuBeanBySno(pwd);17: 18: if (stu.getSname() == null) {19: request.setAttribute("message", "涓嶅瓨鍦ㄨ鐢ㄦ埛锛�);Stacktrace:org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:521)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:430)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)javax.servlet.http.HttpServlet.service(HttpServlet.java:723)

root cause

java.lang.NullPointerExceptioncom.yang.caozuo.OperateStu.getStuBeanBySno(OperateStu.java:192)org.apache.jsp.dologin_jsp._jspService(dologin_jsp.java:71)org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)javax.servlet.http.HttpServlet.service(HttpServlet.java:723)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)javax.servlet.http.HttpServlet.service(HttpServlet.java:723)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.37 logs.