Hi, Can you please let me know which module did add gwt.xml file to work
with WritableWorkbook. I have a situation to work with Excel in GWT but not
able to find any module
On Tuesday, 4 May 2010 19:22:28 UTC+5:30, Dima wrote:
>
> Hi,
>
> I try to create a test.xsl on the server without saving the file on
> the server. My application is running fine in hosted mode, but once
> compiled and uploud(Tomcat) I get a nasty exception. Probably my
> servleturl is not correct.
>
> My code:
>
> Client:----------------------------
> final String link = GWT.getModuleBaseURL() + "myfiledownload";
>
> RequestBuilder builder = new
> RequestBuilder(RequestBuilder.GET,link);
>
> try {
> builder.sendRequest(null, new
> RequestCallback() {
> public void onError(Request request, Throwable
> t) {
> Window.alert("Error bei getExcel");
> }
> public void onResponseReceived(Request
> request,Response response)
>
> if(response.getStatusCode() == 200) {
> Window.Location.replace(link);
> } else if(response.getStatusCode() == 404) {
> Window.alert("Service not available.");
> }
> }
> });
> } catch (RequestException re) {
> GWT.log("Error", re);
> }
> -------------------------------------------------------------------
> web.xml
>
> <servlet>
> <servlet-name>myfiledownload</servlet-name>
> <servlet-class>module.server.MyFileServlet</servlet-class>
> </servlet>
> <servlet-mapping>
> <servlet-name>myfiledownload</servlet-name>
> <url-pattern>/myfiledownload</url-pattern>
> </servlet-mapping>
> --------------------------------------------
> MyApp.gwt.xml
>
> <module>
> ...
> <servlet path="/myfiledownload" class="module.server.MyFileServlet"/>
> </module>
> ---------------------------------------
> Server
>
> package module.server;
>
>
> public class MyFileServlet extends HttpServlet {
> private static final long serialVersionUID = 1L;
>
> public void doGet(HttpServletRequest request, HttpServletResponse
> response) throws IOException {
> try {
> // Get Excel Data
> ByteArrayOutputStream bytes = generateExcelReport();
>
> // Initialize Http Response Headers
> response.setHeader("Content-disposition", "attachment;
> filename=exportUsers.xls");
> response.setContentType("application/vnd.ms-excel");
>
> // Write data on response output stream
> if (bytes != null) {
> response.getOutputStream().write(bytes.toByteArray());
> }
> } catch (Exception e) {
> response.setContentType("text/plain");
> response.getWriter().print("An error as occured");
> }
> }
>
> public ByteArrayOutputStream generateExcelReport() throws IOException,
> WriteException{
>
>
> /* Stream containing excel data */
> ByteArrayOutputStream outputStream = new
> ByteArrayOutputStream();
>
> /* Create Excel WorkBook and Sheet */
> WritableWorkbook workBook =
> Workbook.createWorkbook(outputStream);
> WritableSheet sheet = workBook.createSheet("User List",
> 0);
>
> /* Generates Headers Cells */
> WritableFont headerFont = new
> WritableFont(WritableFont.TAHOMA, 12,
> WritableFont.BOLD);
> WritableCellFormat headerCellFormat = new
> WritableCellFormat(headerFont);
> headerCellFormat.setBackground(Colour.PALE_BLUE);
> sheet.addCell(new Label(1, 1, "LastName",
> headerCellFormat));
> sheet.addCell(new Label(2, 1, "FirstName",
> headerCellFormat));
>
> /* Generates Data Cells */
> WritableFont dataFont = new
> WritableFont(WritableFont.TAHOMA, 12);
> WritableCellFormat dataCellFormat = new
> WritableCellFormat(dataFont);
> int currentRow = 2;
>
>
> /* Write & Close Excel WorkBook */
> workBook.write();
> workBook.close();
>
> return outputStream;
>
> }
> }
> ---------------------------------------
>
> Please help my...
>
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