从Google云端硬盘下载PDF文件 [英] Download file as pdf from Google Drive

问题描述

我必须下载所有Google驱动器文件。我正试图遵循此
获取下载网址并使用此代码获取pdf url
i获取downloadurl使用

  file.getDownloadUrl（）
  

但是当我要求下载或转换为流时，它会抛出错误404：未找到。

我在哪里丢失..一些认证问题或一些超越.....
下载的东西我正在使用像这样...

  InputStream tempstream = Temp.downloadFile（service，file）; 
  

和

  private static InputStream downloadFile（Drive service，File file）{
 if（file.getDownloadUrl（）！= null&& file.getDownloadUrl（）。length（）> 0）{
尝试{
 //下载网址是：https://doc-0s-9k-docs.googleusercontent.com/docs/securesc/6rpci9p5rgc1ards1udmrkv5oparm1a2/eoas3kt0uj6afg559kiugg3d6fftlere/1357740000000/06400000604443042302/18001816663358798513/0B2tdn0tkhMowTFVyRzYzaGhWeTQ?h=16653014193614665626& ; e = download& gd = true
 HttpResponse resp = 
 service.getRequestFactory（）。buildGetRequest（new GenericUrl（file.getDownloadUrl（）））
 .execute（）; 
 return resp.getContent（）; 
} catch（IOException e）{
 //发生错误。 
 e.printStackTrace（）; 
返回null; 
} 
}其他{
 //文件没有存储在驱动器上的任何内容。 
返回null; 
} 
  

}

downloadurl
请帮助...我感觉有些我无法通过正确的身份验证调用方法....

解决方案

您必须确保：您的服务已获得授权
您的下载网址是新鲜的（因为它们到期）

否则您的代码是正确的。有关详情：

https：// developers.google.com/drive/manage-downloads

I have to download all Google drive files. i am trying to follow this for Getting download url and using this code for pdf url i am getting downloadurl using

file.getDownloadUrl() 

but when i am calling for download or converting into stream it is throwing error 404: not found.

where i am missing .. some authentication issue or some thing beyond ..... for downloading i am using like this ...

InputStream tempstream = Temp.downloadFile(service, file);

and

private static InputStream downloadFile(Drive service, File file) {
if (file.getDownloadUrl() != null && file.getDownloadUrl().length() > 0) {
  try {
      //download url is  : "https://doc-0s-9k-docs.googleusercontent.com/docs/securesc/6rpci9p5rgc1ards1udmrkv5oparm1a2/eoas3kt0uj6afg559kiugg3d6fftlere/1357740000000/06400000604443042302/18001816663358798513/0B2tdn0tkhMowTFVyRzYzaGhWeTQ?h=16653014193614665626&e=download&gd=true" 
    HttpResponse resp =
        service.getRequestFactory().buildGetRequest(new GenericUrl(file.getDownloadUrl()))
            .execute();
    return resp.getContent();
  } catch (IOException e) {
    // An error occurred.
    e.printStackTrace();
    return null;
  }
} else {
  // The file doesn't have any content stored on Drive.
  return null;
}

}

downloadurl please help... i feel some i am not able to call method with proper authentication....

解决方案

You must make sure:

1. Your service is authorized
2. Your download URL is fresh (because they expire)

Otherwise your code is correct. For more info:

https://developers.google.com/drive/manage-downloads

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