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          public String btnSaveXML_action() {
          
                  // TODO: Process the action. Return value is a navigation
          
                  // case name where null will return to the same page.
          
                  try {
          
                      //get the appId
          
                      Integer appId = Integer.valueOf(txtMemory1.getText().toString());
          
            String appName           = datamanagementservice.getAppNameByAppId(appId);
          
            Document doc           = writeXML(appId, appName);
          
            TransformerFactory tFactory           = TransformerFactory.newInstance();
          
            Transformer transformer           = tFactory.newTransformer();
          
            DOMSource source           = new DOMSource(doc);
          

          
                      //the file's loadpath
          
                      String loadPath = "c:\\temp\\" + appName + ".xml";
          
                      //if the file no exist then create it
          
                      File f = new File("c:\\temp\\");
          
            f.mkdirs();
          
            StreamResult result           = new StreamResult(new java.io.File(loadPath));
          
            transformer.transform(source, result);
          

          
                      //new a download file
          
                      File t_file = new File(loadPath);
          
                      long l;
          
                      for (l = 0L; l == 0L; l = t_file.length()) {
          

          
                t_file           = new File(loadPath);
          
            }
          
            InputStream in           = new FileInputStream(t_file);
          
                      if (in != null) {
          
                String filename           = t_file.getName();
          
                filename           = java.net.URLEncoder.encode(filename, "utf-8");
          

          
                FacesContext.getCurrentInstance().responseComplete();
          
                HttpServletResponse httpServletResponse           = (HttpServletResponse) FacesContext.getCurrentInstance().getExternalContext().getResponse();
          
                httpServletResponse.reset();
          
                httpServletResponse.setContentType(          "application/x-msdownload");
          
                String rrr           = "attachment; filename=" + filename;
          
                httpServletResponse.setHeader(          "Content-Disposition", rrr);
          
                httpServletResponse.setContentLength((          int) l);
          

          
                          byte b[] = new byte[2048];
          
                          for (int len = 0; (len = in.read(b)) > 0;) {
          
                    httpServletResponse.getOutputStream().write(b,           0, len);
          
                }
          
                in.close();
          
            }
          
        }           catch (Exception e) {
          
            e.printStackTrace();
          
        }
          
        getRequestBean1().setSelectAppId((Integer) dropDown1.getSelected());
          

          
                  return null;
          
    }
          

	
          posted on 2008-11-27 10:39 Vincent-chen 閱讀(260) 評論(0)  編輯  收藏  所屬分類: JSF 
          

          







          
	    
    




          








          

				

          





    







          
        
	




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