关于生成excel下载问题?报错

今天发现一个问题，首先说一下环境，测试服务器XP weblogic11 oracle11G ，本机myeclipse8.5 连接的测试服务器数据库，tomcat6，本机测试无问题，就测试环境下载不了。 没有报错信息，进了此方法没有出去，文件也没生成。使用的POI。

本机测试日志记录

2013-08-06 18:32:17,450 [RevHistoryFileExlDownLoadAction.java:75  :INFO ][] -生成start
2013-08-06 18:32:17,841 [JakartaCommonsLoggingImpl.java:27  :DEBUG][] -{conn-100036} Connection
2013-08-06 18:32:17,841 [JakartaCommonsLoggingImpl.java:27  :DEBUG][] -{conn-100036} Preparing Statement:    SELECT  pr.DETAIL_NO,     pr.DETAIL_STATUS,     pr.DETAIL_TIME,     pr.MONEY,     pr.PR_NO,     pr.REMARK,     pr.STAFF_ACCOUNT,     pr.STAFF_NAME   FROM bus_reverse_result pr   WHERE pr.PR_NO = ?   AND pr.PATCH = ?                 ORDER BY pr.DETAIL_STATUS DESC 
2013-08-06 18:32:17,841 [JakartaCommonsLoggingImpl.java:27  :DEBUG][] -{pstm-100037} Executing Statement:    SELECT  pr.DETAIL_NO,     pr.DETAIL_STATUS,     pr.DETAIL_TIME,     pr.MONEY,     pr.PR_NO,     pr.REMARK,     pr.STAFF_ACCOUNT,     pr.STAFF_NAME   FROM bus_reverse_result pr   WHERE pr.PR_NO = ?   AND pr.PATCH = ?                 ORDER BY pr.DETAIL_STATUS DESC 
2013-08-06 18:32:17,841 [ ReverseServiceImpl.java:410 :INFO ][] -冲账文件生成开始: 总记录 4
2013-08-06 18:32:17,856 [ ReverseServiceImpl.java:550 :INFO ][] -生成文件名称:  代发测试2013-08-06冲账记录.xls
2013-08-06 18:32:18,293 [ ReverseServiceImpl.java:556 :INFO ][] -tmpPath路径： c:\dwdir\
2013-08-06 18:32:18,293 [ ReverseServiceImpl.java:564 :INFO ][] -file路径： c:\dwdir\代发测试2013-08-06冲账记录.xls
2013-08-06 18:32:18,309 [RevHistoryFileExlDownLoadAction.java:78  :INFO ][] -生成end代发测试2013-08-06冲账记录.xls

服务器日志记录就一个生成start然后就没反应了

public String downRevHistoryExlDetail(Map map,HttpServletRequest request,HttpServletResponse response)throws BaseCheckedException, IOException{
		String PR_NO = map.get("PR_NO").toString();
		String PATCH = map.get("PATCH").toString();
		String CUST_NAME = getCustName(PATCH);
		Map queryDetail = new HashMap();
		queryDetail.put("PR_NO", PR_NO);
		queryDetail.put("PATCH", PATCH);
		queryDetail.put("STAFF_NAME", map.get("STAFF_NAME"));
		queryDetail.put("STAFF_ACCOUNT", map.get("STAFF_ACCOUNT"));
	        List<BusReverseDetailVO> detailList = (List<BusReverseDetailVO>) dao.queryListByIBatis("reverseHistory.queryRevHistoryDetail", queryDetail);

//填充xls表格代码略去

                String fileName = CUST_NAME+payTime+".xls";
	        excelTools.createSheetofExcel(fileName, response, sheetName, "", colCount, headers, tableHead, tableBodyData, footer);
	    
		
		//将字节流导出放在系统中
		String tmpPath = Common.getMessage("DOWNLOAD_PATH").toString();
		//创建文件路径
		File downDir = new File(tmpPath);
		if (!downDir.isDirectory()){
			downDir.mkdir();
		}
		//创建文件
		String file = tmpPath + fileName;
		
		FileOutputStream fileOut = new FileOutputStream(file);
		fileOut.close();
		return fileName;
	}