Struts中上传控件的使用 以及下载

在jsp页面中的关键

    enctype="multipart/form-data"> 

                                           ----------------------------

请选择:
           
   

在ActionForm中的关键代码:

       private FormFile uploadFile;

       public FormFile getUploadFile() {
        return uploadFile;
       }

 

       public void setUploadFile(FormFile uploadFile) {
        this.uploadFile = uploadFile;
       }

在Action中的关键代码:

       FileLoadActionForm fileLoadActionForm = (FileLoadActionForm)form;

                   //对应的ActionForm
        FormFile file = fileLoadActionForm.getUploadFile();
        String filename = file.getFileName();
        String filePath = servlet.getServletContext().getRealPath(
                "/images/users/");
        String dir = filePath + "//" + filename; //全路径名
        try {
            InputStream inputs = file.getInputStream();
            OutputStream outputs = new FileOutputStream(dir);
            int i;
            byte[] buffer = new byte[8099];
            while ((i = inputs.read(buffer, 0, 1024)) != -1) {
                outputs.write(buffer, 0, i);
            }
            outputs.flush();
            outputs.close();
            inputs.close();
        } catch (Exception ex) {
            ex.printStackTrace();
        }

 

-------------------------------------------------上传--------------------

public ActionForward down(ActionMapping mapping, ActionForm form,
   HttpServletRequest request, HttpServletResponse response) {
  System.out.println("--------------");
  AgentProductForm agentProductForm = (AgentProductForm) form;// TODO Auto-generated method stub
  ActionForward forward = new ActionForward();
  ArrayList productList = new ArrayList();
  AgentProduct agentProduct = new AgentProduct();
  productList = agentProduct.queryProduct();
  System.out.println("size:"+productList.size());
  try{
   String downFile = new StringBuffer().append("down_lang").append(".xls").toString();
   response.setContentType("application/vnd.ms-excel");
   response.setHeader("Content-Disposition", "attachment;fileName="+response.encodeURL(downFile));
   HSSFWorkbook wb = null;
   HSSFSheet sheet = null;
   HSSFFont font = null;
   HSSFCell cell = null;
   HSSFRow row = null;
   HSSFCellStyle style = null;
   wb = new HSSFWorkbook();
   sheet = wb.createSheet("sheet 1");
   
   font = wb.createFont();
   font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
   
   style = wb.createCellStyle();
   style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
   style.setFont(font);
   
   row = sheet.createRow(0);
   sheet.addMergedRegion(new Region(0,(short)0,0,(short)5));
   cell = row.createCell((short)0);
   cell.setCellStyle(style);
   cell.setEncoding(HSSFCell.ENCODING_UTF_16);
   cell.setCellValue("产品数据");
   
   row = sheet.createRow(1);
   
   cell = row.createCell((short)0);
   cell.setCellStyle(style);
   cell.setEncoding(HSSFCell.ENCODING_UTF_16);
   cell.setCellValue("产品编号");
   
   cell = row.createCell((short)1);
   cell.setCellStyle(style);
   cell.setEncoding(HSSFCell.ENCODING_UTF_16);
   cell.setCellValue("产品名称");
   
   cell = row.createCell((short)2);
   cell.setCellStyle(style);
   cell.setEncoding(HSSFCell.ENCODING_UTF_16);
   cell.setCellValue("产品地址");
   
   cell = row.createCell((short)3);
   cell.setCellStyle(style);
   cell.setEncoding(HSSFCell.ENCODING_UTF_16);
   cell.setCellValue("产品状态");
   
   cell = row.createCell((short)4);
   cell.setCellStyle(style);
   cell.setEncoding(HSSFCell.ENCODING_UTF_16);
   cell.setCellValue("新旧程度");
   
   cell = row.createCell((short)5);
   cell.setCellStyle(style);
   cell.setEncoding(HSSFCell.ENCODING_UTF_16);
   cell.setCellValue("创建日期");
   
   Iterator it = productList.iterator();
   int initRow = 2;
   while(it.hasNext()){
    AgentProductForm productForm = (AgentProductForm)it.next();
    
    row = sheet.createRow(initRow);
    
    cell = row.createCell((short)0);
    cell.setCellStyle(style);
    cell.setEncoding(HSSFCell.ENCODING_UTF_16);
    cell.setCellValue(productForm.getProductId());
    
    cell = row.createCell((short)1);
    cell.setCellStyle(style);
    cell.setEncoding(HSSFCell.ENCODING_UTF_16);
    cell.setCellValue(productForm.getProductName());
    
    cell = row.createCell((short)2);
    cell.setCellStyle(style);
    cell.setEncoding(HSSFCell.ENCODING_UTF_16);
    cell.setCellValue(productForm.getAddress());
    
    cell = row.createCell((short)3);
    cell.setCellStyle(style);
    cell.setEncoding(HSSFCell.ENCODING_UTF_16);
    cell.setCellValue(productForm.getState());
    
    cell = row.createCell((short)4);
    cell.setCellStyle(style);
    cell.setEncoding(HSSFCell.ENCODING_UTF_16);
    cell.setCellValue(productForm.getNewLevel());
    
    cell = row.createCell((short)5);
    cell.setCellStyle(style);
    cell.setEncoding(HSSFCell.ENCODING_UTF_16);
    cell.setCellValue(productForm.getCreateDate());
    
    initRow++;
   }
   OutputStream out = response.getOutputStream();
   wb.write(out);
   out.close();
   return null;
  }
  catch(Exception e){
   e.printStackTrace();
   System.out.println("forward:"+forward);
   return forward;
  }
  
 }
}

---------------------------上面是下载为EXCEL表格------------------------------

文件:	Upload_demo.rar
大小:	2737KB
下载:	下载