Question

java.lang.NullPointerException（myeclipse jsp查询错误）高手指点一下！！

我是个新手 麻烦给我看下下边的错误
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:532)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:426)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

root cause

java.lang.NullPointerException
org.apache.jsp.search_005fresult_jsp._jspService(search_005fresult_jsp.java:138)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:384)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.10 logs.

代码连接地址：
http://yuddpkymake.blog.163.com/blog/edit/

Answer 1

如果你用的是tomcat,你可以到你tomcat跟目录下的work\Catalina\localhost\你的项目名称\org\apache\jsp\search_005fresult_jsp.java的第138行看看.

空指针异常,看了你的代码,觉得你的错可能出在:rsAll.last();原因是你的rsAll可能为null.你最好用while(rs.last()){}.

还有就是不建议你把jdbc,以及业务代码都写在jsp中.

Answer 2

稍微看了下. 楼主,请问:
<jsp:include page="search.jsp"/>
这里引用的这个search.jsp存在吗?

Answer 3

如果可以把tomcat应用部署中work目录里的这个文件：search_005fresult_jsp.java打开，找到138行，看看是什么，问题就更容易解决了