Когда на сайте пытаюсь сохранить файл с данными которые он вывел (табличка), то в файле экселевском тупо в ячейке записано "deleteMe" и всё, помогите, в чём ошибка?




/*
 * Created on 26.12.2009
 */
package ru.bpc.svfe.view.cashmanagement;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.GregorianCalendar;
import java.util.List;
import java.util.Locale;
import java.util.ResourceBundle;

import javax.faces.context.FacesContext;
import javax.servlet.http.HttpServletResponse;

import org.ajax4jsf.model.DataVisitor;
import org.apache.log4j.Logger;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;


import ru.bpc.items.cashmanagement.AtmIncassationListItem;
import ru.bpc.items.cashmanagement.IncassListFilter;
import ru.bpc.jsf.auxil.SessionWrapper;
import ru.bpc.jsf.utils.FacesContextUtils;
import ru.bpc.svfe.logic.cashmanagement.LcCashManagement;

import org.richfaces.component.UIDataTable;

/**
 * @author Kesler Julia
 */
public class MbAtmIncassationList {
    private List<AtmIncassationListItem> atmIncassationDataTable;//таблица результатов
    private IncassListFilter  filter;//Фильтр(ввод пользователя)
    private UIDataTable uiDataTable;

    private ResourceBundle localizedMessages_com;
    private ResourceBundle localizedMessages_ind;
            
    private String uid;
    private final static Logger _logger = Logger.getLogger( "ATM_MONITORING" );
    
    
    //Конструктор
    public MbAtmIncassationList() {
        uid = SessionWrapper.getUid();
    }
    
    //ГетФильтр
    public IncassListFilter getFilter() {
     if (filter == null)
            filter = new IncassListFilter();
     return filter;
    }
    //Сетфильтр
   public void setFilter(IncassListFilter filter){
    this.filter=filter;
    }
    public List<AtmIncassationListItem> getAtmIncassationDataTable() {
     if (atmIncassationDataTable == null)
         atmIncassationDataTable = new ArrayList<AtmIncassationListItem>();
     return atmIncassationDataTable;
    }
    public void setAtmIncassationDataTable(List<AtmIncassationListItem> temp){
     this.atmIncassationDataTable=temp;
    }
    
    //обработчик кнопки SHOW
    public void showButtonAction() {
            try {
             setAtmIncassationDataTable(LcCashManagement.getInstance().getAtmIncassationList( uid, getFilter()));
            } catch (Exception e) {
                _logger.error("",e);
                FacesContextUtils.addErrorExceptionMessage(e);
            }
            
            if (getAtmIncassationDataTable() == null){
             List<AtmIncassationListItem> temp = new ArrayList<AtmIncassationListItem>();
             this.setAtmIncassationDataTable(temp);
             }
    }
    
    //
    public List<AtmIncassationListItem> getFilteredData() throws IOException {
        final List<AtmIncassationListItem> filteredData = new ArrayList<AtmIncassationListItem>();

        getUiDataTable().walk(FacesContext.getCurrentInstance(), new DataVisitor() {     
             public void process(FacesContext context, Object rowKey, Object argument) {
                  UIDataTable table = (UIDataTable) argument;
                  table.setRowIndex((Integer)rowKey);
                  AtmIncassationListItem obj = (AtmIncassationListItem) table.getRowData();     
                  filteredData.add(obj);
             }
        }, getUiDataTable());

        return filteredData;
   }
    
    public void setUiDataTable(UIDataTable uiDataTable) {
        this.uiDataTable = uiDataTable;
    }

    public UIDataTable getUiDataTable() {
        return uiDataTable;
    }

    //Выгрузка в Excel
    private String getFilename(String reportAlias, String ext) {
     StringBuffer result = new StringBuffer(reportAlias);
        final SimpleDateFormat fileDateTimeFormat = new SimpleDateFormat("yyyyMMdd");
     result.append('_');
     synchronized (fileDateTimeFormat) {
         result.append(fileDateTimeFormat.format(GregorianCalendar.getInstance().getTime()));
        }
     result.append(".").append(ext);
     
     return result.toString();
    }
     
    private void insertInformAndHeader(AtmIncassationListItem item, HSSFSheet sheet, HSSFFont font, HSSFCellStyle cellStyle,HSSFRow row){
        

        HSSFRichTextString colVal = new HSSFRichTextString(localizedMessages_com.getString("pid"));
        HSSFRow row1     = sheet.createRow((short)0); 
        HSSFCell cell = row1.createCell(0); 
        colVal.applyFont(font);
        cell.setCellValue(colVal);
        cell.setCellStyle(cellStyle);
        
        cell = row1.createCell(1);
        colVal = new HSSFRichTextString(localizedMessages_com.getString("address"));
        colVal.applyFont(font);
        cell.setCellValue(colVal);
        cell.setCellStyle(cellStyle);
        
        cell = row1.createCell(2);
        colVal = new HSSFRichTextString(localizedMessages_com.getString("currency"));
        colVal.applyFont(font);
        cell.setCellValue(colVal);
        cell.setCellStyle(cellStyle);
        
        cell = row1.createCell(3);
        colVal = new HSSFRichTextString(localizedMessages_ind.getString("nominal"));
        colVal.applyFont(font);
        cell.setCellValue(colVal);
        cell.setCellStyle(cellStyle);
        
        cell = row1.createCell(4);
        colVal = new HSSFRichTextString(localizedMessages_ind.getString("amount"));
        colVal.applyFont(font);
        cell.setCellValue(colVal);
        cell.setCellStyle(cellStyle);
        
        cell = row1.createCell(5);
        colVal = new HSSFRichTextString(localizedMessages_ind.getString("notes_number"));
        colVal.applyFont(font);
        cell.setCellValue(colVal);
        cell.setCellStyle(cellStyle);
        
        cell = row1.createCell(6);
        colVal = new HSSFRichTextString(localizedMessages_ind.getString("date"));
        colVal.applyFont(font);
        cell.setCellValue(colVal);
        cell.setCellStyle(cellStyle);
        
    }
    
    private void insertData(HSSFRow row,HSSFSheet sheet, AtmIncassationListItem item, HSSFCellStyle styleCenter, HSSFCellStyle styleRight){
        
        HSSFCell cell = row.createCell(0);
        HSSFRichTextString colVal = new HSSFRichTextString(item.getPid());
        cell.setCellType(HSSFCell.CELL_TYPE_STRING);
        cell.setCellStyle(styleCenter);
        cell.setCellValue(colVal);
        
        cell = row.createCell(1);
        colVal = new HSSFRichTextString(item.getAdress());
        cell.setCellType(HSSFCell.CELL_TYPE_STRING);
        cell.setCellStyle(styleCenter);
        cell.setCellValue(colVal);        
        
        cell = row.createCell(2);
        colVal = new HSSFRichTextString(String.valueOf(item.getValuta()));
        cell.setCellType(HSSFCell.CELL_TYPE_STRING);
        cell.setCellStyle(styleCenter);
        cell.setCellValue(colVal);
        
        cell = row.createCell(3);
        cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
        cell.setCellStyle(styleCenter);
        cell.setCellValue(item.getNominal());
        
        cell = row.createCell(4);
        cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
        cell.setCellStyle(styleRight);
        cell.setCellValue(item.getKol());
        
        cell = row.createCell(5);
        cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
        cell.setCellStyle(styleRight);
        cell.setCellValue(Integer.parseInt(item.getFlag2()));
        
        cell = row.createCell(6);
        colVal = new HSSFRichTextString(String.valueOf(item.getFlag3()));
        cell.setCellType(HSSFCell.CELL_TYPE_STRING);
        cell.setCellStyle(styleCenter);
        cell.setCellValue(colVal);
        
    }
    
    public String exec(){
        final String EXTENSION = "xls";
        HttpServletResponse res = (HttpServletResponse)FacesContext.getCurrentInstance().getExternalContext().getResponse();
        
        HSSFWorkbook wb = new HSSFWorkbook();
        HSSFSheet sheet = wb.createSheet("Data");
        
        HSSFCellStyle styleHeader = wb.createCellStyle();
        HSSFFont fontHeader = wb.createFont();
        fontHeader.setBoldweight((short) 2);
        fontHeader.setFontHeightInPoints((short) 14);
        fontHeader.setFontName("Arial");
        styleHeader.setFont(fontHeader);
        
        HSSFFont font = wb.createFont();
        font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
        
        HSSFCellStyle cellStyle = wb.createCellStyle();
        cellStyle.setFillPattern(HSSFCellStyle.FINE_DOTS);
        cellStyle.setFillBackgroundColor(new HSSFColor.GREY_25_PERCENT().getIndex());
        HSSFRichTextString colVal =  new HSSFRichTextString("deleteMe");
        HSSFRow row     = sheet.createRow((short)0); 
        HSSFCell cell   = row.createCell((short)0); 
        cell.setCellStyle(styleHeader);
        cell.setCellValue(colVal); 
        
        ////// Полезно
        HSSFCellStyle styleCenter = wb.createCellStyle();
        styleCenter.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        
        HSSFCellStyle styleRight = wb.createCellStyle();
        styleRight.setAlignment(HSSFCellStyle.ALIGN_RIGHT);
        /////
        
        if (FacesContext.getCurrentInstance().getViewRoot() == null) {
            this.localizedMessages_ind = ResourceBundle.getBundle( "ru.bpc.locale.cashmanagement.forecasting.currencyOut", Locale.getDefault());
            this.localizedMessages_com = ResourceBundle.getBundle( "ru.bpc.locale.cashmanagement.common", Locale.getDefault());
        } else {
            this.localizedMessages_ind = ResourceBundle.getBundle( "ru.bpc.locale.cashmanagement.forecasting.currencyOut", FacesContext.getCurrentInstance().getViewRoot().getLocale());
            this.localizedMessages_com = ResourceBundle.getBundle( "ru.bpc.locale.cashmanagement.common", FacesContext.getCurrentInstance().getViewRoot().getLocale());
        }
     
        sheet.autoSizeColumn((short)0);
        
                
        
            try{
                String filename = getFilename("Currency_Exhaustion", EXTENSION);
                //List regions = LcCashManagement.getInstance().getAtmIncassationList(uid, filter);
                List dataList = getFilteredData();
                res.setContentType("application/x-download");
                res.setHeader("Content-Disposition", "attachment; filename=" + filename);
                                 
                if(dataList != null && dataList.size() != 0){
                    
                    short i = 1;
                    for (int k = 0 ; k < dataList.size(); k++){    
                     AtmIncassationListItem current = (AtmIncassationListItem)dataList.get(k);
                     insertInformAndHeader(current, sheet, font, cellStyle,row);
                     row = sheet.createRow(i++);
                     cell = row.createCell((short)0);
                        colVal.applyFont(font);
                        cell.setCellValue(colVal);
                        cell.setCellStyle(cellStyle);
                        insertData(row, sheet, current, styleCenter, styleRight);
                    }
                }
                for (short k = 0; k < dataList.size(); k++ ){
                 sheet.autoSizeColumn(k);
                }
                try {
                    wb.write(res.getOutputStream());
                    FacesContext.getCurrentInstance().responseComplete();
                } catch (Exception e) {
                    FacesContextUtils.addErrorExceptionMessage(e);
                    _logger.error("",e);
                    return null;
                }    
            }catch(Exception e){
                _logger.error("",e);
                FacesContextUtils.addErrorExceptionMessage(e);
                return null;
            }
            
        return "Back";
    }
}