在linux里生成excel文件异常

kongwei302 2008-09-17 10:21:09
在linux里生成excel文件异常
fileOut = new FileOutputStream(
"/var/jakarta-tomcat-5.0.28/webapps/daily-report/report/"
+ needDate + ".xls");
在windows里没错.
请各路高手帮忙解答
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kongwei302 2008-09-17
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没人知道吗
kongwei302 2008-09-17
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HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:523)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.project.tool.CharacterFilter.doFilter(CharacterFilter.java:32)


root cause

java.lang.NullPointerException
com.background.dao.BaseDao.getStatement(BaseDao.java:49)
com.background.dao.BaseDao.doQuery(BaseDao.java:58)
com.background.dao.EntityDao.queryAllEntityByDate(EntityDao.java:105)
com.background.dao.CreatExcel.creatSheetSponsorContent(CreatExcel.java:40)
com.background.action.NetAllyDailyReportAction.execute(NetAllyDailyReportAction.java:65)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.project.tool.CharacterFilter.doFilter(CharacterFilter.java:32)


note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.


--------------------------------------------------------------------------------

Apache Tomcat/5.0.28

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