Question

我试图通过JSP将文件上传到我的GCS没有成功。

使用这个html：

 <form enctype="multipart/form-data" action="/gcs/uploud/" method="POST">
Choose a file to upload: <input name="uploadedfile" type="file" /><br />
<input type="submit" value="Upload File" />
</form>

控制器：

@Controller
@RequestMapping("pages/gcs/*")
public class GoogleStorageController {

    public static final boolean SERVE_USING_BLOBSTORE_API = false;
      private final GcsService gcsService = GcsServiceFactory.createGcsService(new RetryParams.Builder()
              .initialRetryDelayMillis(10)
              .retryMaxAttempts(10)
              .totalRetryPeriodMillis(15000)
              .build());

      private static final int BUFFER_SIZE = 2 * 1024 * 1024;
      private static String BucketName = "XXXXXX";

    @RequestMapping(value ="*/*",method = RequestMethod.POST)
    public @ResponseBody String home(HttpServletRequest req, HttpServletResponse resp) {

        GcsFileOptions instance = GcsFileOptions.getDefaultInstance();
        GcsFilename fileName = getFileName(req);
        GcsOutputChannel outputChannel;
        try {
            outputChannel = gcsService.createOrReplace(fileName, instance);
        copy(req.getInputStream(), Channels.newOutputStream(outputChannel));
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return "successPage";
    }


      private GcsFilename getFileName(HttpServletRequest req) {
        return new GcsFilename(BucketName, "media");
      }

      /**
       * Transfer the data from the inputStream to the outputStream. Then close both streams.
       */
      private void copy(InputStream input, OutputStream output) throws IOException {
        try {
          byte[] buffer = new byte[BUFFER_SIZE];
          int bytesRead = input.read(buffer);
          while (bytesRead != -1) {
            output.write(buffer, 0, bytesRead);
            bytesRead = input.read(buffer);
          }
        } finally {
          input.close();
          output.close();
        }
      }
}

我的GCS中有文件，但标题不正确。

你知道吗？我应该如何处理HTTP标头请求？我该如何定义内容类型字段？

Answer 1

您没有在createOrReplace()中设置任何GcsFileOptions，因此我希望您上传的对象具有完全默认值。尝试这样的事情：

        GcsFileOptions.Builder options = new GcsFileOptions.Builder();
        options.mimeType("text/plain-or-whatever")
        outputChannel = gcsService.createOrReplace(fileName, options.build(), instance);

使用spring MVC通过multipart请求将文件上传到google云存储

1 个答案: