求大神指点

更新时间2018-06-29 04:45:11

HTTP Status 500 -

type Exception report

message

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

exception

java.lang.NullPointerException
UserServlet.Uservlet.doPost(Uservlet.java:96)
javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

note The full stack trace of the root cause is available in the
Apache Tomcat/7.0.30 logs.

状态500-类型异常报告消息描述服务器遇到了内部错误，从而阻止了是为了满足这个要求。例外空解用户服务（java:96）服务(http://java:641)服务(http://java:722)注意根原因的全部堆栈跟踪可以在(单位：千美元)