是什么原因?在本机可以运行,但是在其他机不行.type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException:java.lang.N
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![是什么原因?在本机可以运行,但是在其他机不行.type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException:java.lang.N](/uploads/image/z/9758182-22-2.jpg?t=%E6%98%AF%E4%BB%80%E4%B9%88%E5%8E%9F%E5%9B%A0%3F%E5%9C%A8%E6%9C%AC%E6%9C%BA%E5%8F%AF%E4%BB%A5%E8%BF%90%E8%A1%8C%2C%E4%BD%86%E6%98%AF%E5%9C%A8%E5%85%B6%E4%BB%96%E6%9C%BA%E4%B8%8D%E8%A1%8C.type+Exception+reportmessage+description+The+server+encountered+an+internal+error+%28%29+that+prevented+it+from+fulfilling+this+request.exception+org.apache.jasper.JasperException%3Ajava.lang.N)
是什么原因?在本机可以运行,但是在其他机不行.type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException:java.lang.N
是什么原因?在本机可以运行,但是在其他机不行.
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException:java.lang.NullPointerException
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:491)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419)
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:717)
root cause
java.lang.NullPointerException
com.pkh.dao.UserDao.selectStatic(UserDao.java:44)
org.apache.jsp.index_jsp._jspService(index_jsp.java:178)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
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:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.24 logs.
是什么原因?在本机可以运行,但是在其他机不行.type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException:java.lang.N
NullPointerException空指针异常.
在本机可以运行,但是在其他机不行,
感觉是不是没有附件数据库啊.还是无法连接数据库,信息不全无法查看