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运行《JSP数据库系统开发案例精选》中第八章中新闻发布系统项目问题
发表在JavaWeb图书答疑
2009-03-31
是否精华
是
否
版块置顶:
是
否
老师：
您好！
我在运行《JSP数据库系统开发案例精选》书中第八章中新闻发布系统项目登录界面时三次出现以下类似错误提示信息，请速指教！！！HTTP Status 500 -
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
com.victor.dao.NewsDaoImpl.dateNews(NewsDaoImpl.java:173)
com.victor.service.NewsFacadeImpl.dateNews(NewsFacadeImpl.java:47)
com.victor.frontStage.newsAction.DateNews.perform(DateNews.java:23)
org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1787)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1586)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:492)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.26 logs.
--------------------------------------------------------------------------------
Apache Tomcat/5.5.26
您好！
我在运行《JSP数据库系统开发案例精选》书中第八章中新闻发布系统项目登录界面时三次出现以下类似错误提示信息，请速指教！！！HTTP Status 500 -
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
com.victor.dao.NewsDaoImpl.dateNews(NewsDaoImpl.java:173)
com.victor.service.NewsFacadeImpl.dateNews(NewsFacadeImpl.java:47)
com.victor.frontStage.newsAction.DateNews.perform(DateNews.java:23)
org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1787)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1586)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:492)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.26 logs.
--------------------------------------------------------------------------------
Apache Tomcat/5.5.26
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