Java Google Drive API下载文件

Question

I am trying to download file with Drive Api and get some trouble. I read this guide downloading file with Drive Api v3 and use this code

String fileId = "0BwwA4oUTeiV1UVNwOHItT0xfa2M";
OutputStream outputStream = new ByteArrayOutputStream();
driveService.files().get(fileId).executeMediaAndDownloadTo(outputStream);

Every time I am getting this error `

com.google.api.client.http.HttpResponseException: 400 Bad Request
{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "badRequest",
    "message": "Bad Request"
   }
  ],
  "code": 400,
  "message": "Bad Request"
 }
}`

Answer 1

From Errors and suggested actions :

Error encountered can mean that a required field or parameter has not been provided, the value supplied is invalid, or the combination of provided fields is invalid.

This error can be thrown when trying to add a duplicate parent to a Drive item. It can also be thrown when trying to add a parent that would create a cycle in the directory graph.

You may also try solution advised in Google API for Google Docs, requesting a list of documents — 400 Bad Request wherein specifying correct version number in your HTTP GET request could be possible solution for the encountered error.