我正在开发适用于iOS的Google云端硬盘集成,我遇到了麻烦 - 我需要检查文件夹中是否存在文件,但无论如何,我都会收到“500内部错误”响应我好像把这个请求放在一起。我认为这应该是合法的:
// self.directoryDriveFile.identifier is a valid folder identifier retrieved on previous request
GTLQueryDrive *query = [GTLQueryDrive queryForChildrenListWithFolderId:self.directoryDriveFile.identifier];
// add query to specify the file we're interested in (works in Java version...)
query.q = [NSString stringWithFormat:@"title='%@' and trashed=false",
ZTCloudSyncLockFileName];
// stopping in debugger shows query.q: title='sync.lock' and trashed=false
// fire off request
[self.driveService executeQuery:query
completionHandler:^(GTLServiceTicket *ticket,
GTLDriveFileList *files,
NSError *error) {
if (error == nil) {
if ([files.items count] > 0) {
self.foundLockfile = YES;
} else {
self.foundLockfile = NO;
}
} else {
DLog(@"An error occurred loading lockfile request: %@", error);
[self bailWithError:error performCleanup:NO];
}
}];
执行查询时,它总是以错误结束,但遗漏的错误信息如下:
Error Domain=com.google.GTLJSONRPC
ErrorDomain Code=500 "The operation couldn’t be completed. (Internal Error)"
UserInfo=0x99c4660 {
error=Internal Error,
GTLStructuredError=GTLErrorObject 0x99c4360: {
message:"Internal Error" code:500 data:[1]},
NSLocalizedFailureReason=(Internal Error)}
我还尝试了以下更基本的查询,指定了parents
子句,但我最终得到了上面显示的相同的备用错误对象:
GTLQueryDrive *altQuery = [GTLQueryDrive queryForFilesList];
altQuery.q = [NSString stringWithFormat:@"title='%@' and trashed=false and '%@' in parents",
ZTCloudSyncLockFileName,
self.directoryDriveFile.identifier];
那也应该有效,但也会产生500错误。
其他信息:在处理此问题时测试了以下内容:
答案 0 :(得分:0)
-(void)fetchGoogleDriveFileListWithfolderId:(NSString *)folderId
:(void (^)(NSMutableArray *, NSError*))completionBlock
{
GTLQueryDrive *query = [GTLQueryDrive queryForFilesList];
query.q =[NSString stringWithFormat:@"'%@' in parents and trashed=false", folderId];
GTLServiceTicket *ticketListing = [self.driveService
executeQuery:query completionHandler:^(GTLServiceTicket *ticket,GTLDriveFileList *files, NSError *error)
{
NSMutableArray *mainArray=[[NSMutableArray alloc]init];
if (error == nil)
{
completionBlock(files.items,nill);
}
else
{
NSLog(@"An error occurred: %@", error);
completionBlock(nil,error);
}
}];
}
您可以使用上述方法获取文件夹内容。 这里的folderId是