求gxt 文件上传实例(在gxt中如何提交formpanel,服务端怎么设计),求高手!
1条回答 默认 最新
- iteye_20028 2010-08-17 14:15关注
FormPanel form = new FormPanel();
form .setMethod(Method.POST);
form .setEncoding(Encoding.MULTIPART);FileUploadField fileUpload = new FileUploadField();
fileUpload.getMessages().setBrowseText(msg.browse());
fileUpload.setFieldLabel(msg.file());
fileUpload.setId("upload");
fileUpload.setName("upload");
form.add(fileUpload);form.setAction(GWT.getModuleBaseURL()+"uploadImageServlet");
form.addListener(Events.Submit,new Listener() {
@Override
public void handleEvent(FormEvent be) {
hide();
}
});
form.submit();
form.onFrameLoad();web.xml
uploadImageServlet
xx.UploadImageServlet
uploadImageServlet
/xx/uploadImageServletUploadImageServlet.java
这里引用了 commons-fileupload-1.2.1.jar
public class UploadImageServlet extends HttpServlet{
public static final QuetzacoLogger log = QuetzacoWebLogger.getInstance();
@Override
protected void doGet(final HttpServletRequest request,
final HttpServletResponse response) throws ServletException,
IOException {
..
}protected void doPost(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException { DiskFileItemFactory factory = new DiskFileItemFactory(); factory.setFileCleaningTracker(FileCleanerCleanup.getFileCleaningTracker(getServletContext())); ServletFileUpload upload = new ServletFileUpload(factory); try { List<FileItem> items = upload.parseRequest(request); for (final FileItem item : items) { if (!item.isFormField()) { String fileName = item.getName(); item.write(new File(request.getRealPath("/upload"),fileName)); } } }catch (Exception e) { e.printStackTrace(); } }
}
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