J2EE1982
发贴: 7
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于 2005-08-16 07:42
jsp:源程序
<%@ page language = "java" contentType = "text/html;charset=ISO-8859-1" %> <%@ page import = "java.sql.*" %> <jsp:useBean id="mysql" scope="page" class="com.Mysql" /> <% ResultSet rs = mysql.executeQuery("select * from stsnews"); while(rs.next()) { out.println(rs.getString("title")); } %>
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 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: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)
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