Java GWT-图像上传和GAE

Java GWT-图像上传和GAE,java,google-app-engine,gwt,servlets,Java,Google App Engine,Gwt,Servlets,我看了服务器端上传。。。上面说接下来 ... /** * Get the content of an uploaded file. */ @Override public void getUploadedFile(HttpServletRequest request, HttpServletResponse response) throws IOException { String fieldName = request.getParameter(UConsts.P

我看了服务器端上传。。。上面说接下来

...
 /**
   * Get the content of an uploaded file.
   */
  @Override
  public void getUploadedFile(HttpServletRequest request, HttpServletResponse response) throws IOException {
    String fieldName = request.getParameter(UConsts.PARAM_SHOW);
    File f = receivedFiles.get(fieldName);
    if (f != null) {
      response.setContentType(receivedContentTypes.get(fieldName));
      FileInputStream is = new FileInputStream(f);
      copyFromInputStreamToOutputStream(is, response.getOutputStream());
    } else {
      renderXmlResponse(request, response, XML_ERROR_ITEM_NOT_FOUND);
   }
  }
...
。。。好的,正如我所看到的,为了获取文件,代码段使用file对象。但是,正如我所记得的,GAE不支持文件io对象。所以我的问题是,对于GAE文件上传,这个库还可以吗?还是有一些更适合GWT的库


谢谢

在GAE中不需要使用Java IO来处理图像上传,您只需依赖Java和API即可。有一个很好的解释和一个例子,我遵循了它,我的上传功能工作顺利。

在GAE中不需要使用Java IO来处理图像上传,您只需依赖Java和API即可。有一个很好的解释和一个例子,我遵循它,我的上传功能工作顺利