Topic: jsp中的一个难题（FOR ME） |
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| 1.jsp中的一个难题（FOR ME） | Copy to clipboard |
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Posted by: haiming Posted on: 2005-10-12 22:09 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.check_jsp._jspService(check_jsp.java:59) 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) 这算什么错误？？？ | |
| 2.Re:jsp中的一个难题（FOR ME） [Re: haiming] | Copy to clipboard |
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Posted by: rebirth Posted on: 2005-10-14 10:04 空指针错误，最常见的错误。你看看你的代码有没有对对象的操作，而这个对象没有赋值？ | |
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