HTTP Status 500 -
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type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:370)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
java.lang.NullPointerException
org.apache.jsp.board1_jsp._jspService(org.apache.jsp.board1_jsp:111)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.9 logs.
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Apache Tomcat/5.5.9
----------------解决方案--------------------------------------------------------
java.lang.NullPointerException空指针异常,检查servlet!
----------------解决方案--------------------------------------------------------
程序里面接受到了空的
内容
检查一下哪里的值没有接受到！
----------------解决方案--------------------------------------------------------
你还要考虑一下哪个变量(方法)没有接受到值或是没有给他赋值就使用咯.
这种情况经常会出现java.lang.NullPointerException空指针异常的.
----------------解决方案--------------------------------------------------------