上傳的Action,UploadExcel爲ActionForm,裏面有一個FormFile的屬性,主要是得到它的InputStream,然後寫入磁盤
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
UploadExcel uaf = (UploadExcel) form;
FormFile myFile = uaf.getMyfile();
if(myFile == null){
request.setAttribute("error", "請選擇你要導入的試題");
return mapping.findForward("fail");
}else if (myFile != null) {
System.out.println("fileName=" + myFile.getFileName());
FileOutputStream fos;
try {
fos = new FileOutputStream("c://"+ myFile.getFileName());
InputStream stream = myFile.getInputStream();
fos.write(myFile.getFileData());
fos.flush();
fos.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
return mapping.findForward("fail");
下載的Action
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
try {
File file=new File("E://你好bb.xls");
String fileName=file.getName();
InputStream is=new FileInputStream(file);
OutputStream os= response.getOutputStream();
BufferedInputStream bis = new BufferedInputStream(is);
BufferedOutputStream bos = new BufferedOutputStream(os);
fileName = java.net.URLEncoder.encode(fileName, "UTF-8");// 處理中文文件名的問題
fileName = new String(fileName.getBytes("UTF-8"), "GBK");//處理中文文件名的問題
response.reset();
response.setCharacterEncoding("UTF-8");
response.setContentType("application/msexcel");// 不同類型的文件對應不同的MIME類型
response.setHeader("Content-Disposition","attachment; filename="+fileName);
int bytesRead = 0;
byte[] buffer = new byte[1024];
while ((bytesRead = bis.read(buffer)) != -1){
bos.write(buffer, 0, bytesRead);// 將文件發送到客戶端
}
bos.flush();
bis.close();
bos.close();
is.close();
os.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return mapping.findForward("");
}