I solved excel file download from jsp or javabean

Question

first jexcel api download
i used the jexcel api
here sample ; using jexcel api
This code is servlet
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SaleAgent sa = null;
public void init(ServletConfig config) throws ServletException {
super.init(config);
// get Sale List DB Agent Class
// you are modify
sa = new SaleAgent();
public void service(HttpServletRequest req, HttpServletResponse res)
throws IOException, ServletException {
res.setContentType("application/vnd.ms-excel");
res.setHeader("content-disposition", "attachment; filename=datesale.xls");
// to get Sale List Parameter
// you are modify
String biz_id = req.getParameter("biz_id");
String begindate = req.getParameter("begindate");
String enddate = req.getParameter("enddate");
// send parameter , set Parameter to get Data List from Database
// you are modify
sa.processDaySale(biz_id, enddate);
ServletOutputStream out = res.getOutputStream();
try {
WritableWorkbook workbook = Workbook.createWorkbook(out);
WritableSheet sheet = workbook.createSheet("datesale", 0);
// head cell
WritableCellFormat cf = new WritableCellFormat();
cf.setAlignment(Alignment.CENTRE);
cf.setBackground(Colour.LIGHT_GREEN);
cf.setWrap(true);
// data cell
WritableCellFormat cf2 = new WritableCellFormat();
cf2.setAlignment(Alignment.CENTRE);
cf2.setWrap(true);
// total cell
WritableCellFormat cf3 = new WritableCellFormat();
cf3.setAlignment(Alignment.CENTRE);
cf3.setBackground(Colour.LIME);
cf3.setWrap(true);
// etc
WritableCellFormat cf4 = new WritableCellFormat();
cf4.setBackground(Colour.LIME);
cf4.setWrap(true);
// column width setting
sheet.setColumnView(0, 10);
sheet.setColumnView(1, 15);
sheet.setColumnView(2, 15);
sheet.setColumnView(3, 15);
sheet.setColumnView(4, 15);
sheet.setColumnView(5, 15);
sheet.setColumnView(6, 15);
sheet.setColumnView(7, 15);
// head row setting
Label label = new Label(0, 0, "NO.", cf);
sheet.addCell(label);
label = new Label(1, 0, "sale_date", cf);
sheet.addCell(label);
label = new Label(2, 0, "week", cf);
sheet.addCell(label);
label = new Label(3, 0, "total_sale", cf);
sheet.addCell(label);
label = new Label(4, 0, "net_sale", cf);
sheet.addCell(label);
label = new Label(5, 0, "cash", cf);
sheet.addCell(label);
label = new Label(6, 0, "card", cf);
sheet.addCell(label);
label = new Label(7, 0, "merch_bond", cf);
sheet.addCell(label);
// data row setting
int t_total = 0;
int t_net = 0;
Number number = null;
int maxRow = sa.getCount();
for(int i = 0; i < maxRow; i++) {
int t_sales = sa.getTotal_Sales_Price(i);
     int n_sales = sa.getTotal_Sales_Price(i) - sa.getTotal_Dc_Price(i);
number = new Number(0, i+1, i + 1, cf2);
sheet.addCell(number);
label = new Label(1, i+1, sa.getSale_Time(i), cf2);
sheet.addCell(label);
number = new Number(2, i+1, t_sales);
sheet.addCell(number);
number = new Number(3, i+1, sa.getTotal_Dc_Price(i));
sheet.addCell(number);
number = new Number(4, i+1, n_sales);
sheet.addCell(number);
number = new Number(5, i+1, sa.getCash(i));
sheet.addCell(number);
number = new Number(6, i+1, sa.getCredit_Card(i));
sheet.addCell(number);
number = new Number(7, i+1, sa.getMerch_bond(i));
sheet.addCell(number);
t_total = t_total + t_sales;
t_net = t_net + n_sales;
// total row setting
label = new Label(0, maxRow + 2, "", cf4);
sheet.addCell(label);
label = new Label(1, maxRow + 2, "Total : ", cf3);
sheet.addCell(label);
number = new Number(2, maxRow + 2, t_total, cf4);
sheet.addCell(number);
label = new Label(3, maxRow + 2, "", cf4);
sheet.addCell(label);
number = new Number(4, maxRow + 2, t_net, cf4);
sheet.addCell(number);
label = new Label(5, maxRow + 2, "", cf4);
sheet.addCell(label);
label = new Label(6, maxRow + 2, "", cf4);
sheet.addCell(label);
label = new Label(7, maxRow + 2, "", cf4);
sheet.addCell(label);
workbook.write();
workbook.close();
} catch(JXLException e) {
e.printStackTrace();

Answer 1

humm
may be servlet link's target have to hidden frame
i don't know correctly reason...