此问题困扰本大笨菜鸟多日了,害吾身心疲惫,身心俱累,夜不能寐,食饭无味,双眼擒泪。吾之祖辈,从未犯罪,堂堂正正,问心无愧,可为何此问题却要折磨我数日?上网搜索,答如泉涌,一一试过,不对不对,就是不对,烦烦烦烦。愿洗耳恭听,求明人赐教。
用浏览器打开页面,就只显示这个,空指针?细细检查每个对象都是初始化了的呀,为何还有些问题?
还有root cause下面那些句子,简直就是天书,我完全不知其所云。
该JSP页面就是HTML里面加入了些数据库查询功能,数据库也建了,也添加系统数据源了。
另外com.bwm.db.Condb / com.bwm.string.Str / java.sql.* 三个包也引进了,
HTTP Status 500 -
--------------------------------------------------------------------------------
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:372)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
java.lang.NullPointerException
org.apache.jsp.index_jsp._jspService(index_jsp.java:186)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.
index.jsp 文件太大,百度不让发。