----------------解决方案--------------------------------------------------------
[IMG]http://bbs.bc-cn.net/P_S_L_77/2006-11/200611116592284592.jpg[/IMG]
----------------解决方案--------------------------------------------------------
看不清楚这是图片的联接
http://bbs.bc-cn.net/P_S_L_77/2006-11/200611116592284592.jpg
----------------解决方案--------------------------------------------------------
再看不清楚,图片另存为,然后电脑上看一下...谢谢了
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
db.DB.insert(DB.java:27)
org.apache.jsp.aaa_jsp._jspService(aaa_jsp.java:50)
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.
----------------解决方案--------------------------------------------------------
空指针异常,是最常见也是最容易排除的错误
----------------解决方案--------------------------------------------------------
同时也是最难解决的....因为在调用这个方法之前我用System.out.println完全可以打出传给他的参数有值...
你能帮我看下后面的异常提示能更具体到哪方面吗?
有没有数据库的事儿?因为这个异常就是在数据库DriverManager这里错的..
----------------解决方案--------------------------------------------------------
对象没有初始化
----------------解决方案--------------------------------------------------------