将Blob存储在Heroku（或类似的云服务） [英] Store Blob in Heroku (or similar cloud services)

问题描述

我想在 Heroku 中部署应用程序，尝试新的Play！框架支持。对于我在网站上读到的内容（我必须承认我还没有尝试过），他们没有提供任何文件系统。这意味着Play中用于存储文件的（可能）Blob字段将无法正常工作。

有人可能：

• 确认您是否可以在Heroku中使用Play Blob？


• 提供在Heroku中存储文件的最佳选择？最好是将它们存储在数据库（它们使用PostgreSQL）或其他地方？
我举了一个如何在github上使用Amazon S3完成此任务的示例：

https：// github .com / jamesward / plays3upload


基本上你只需要将文件发送到S3并将密钥保存在实体中：

  AWSCredentials awsCredentials = new BasicAWSCredentials（System.getenv（AWS_ACCESS_KEY），System.getenv（AWS_SECRET_KEY））; 
 AmazonS3 s3Client =新的AmazonS3Client（awsCredentials）; 
 s3Client.createBucket（BUCKET_NAME）; 
 String s3Key = UUID.randomUUID（）。toString（）; 
 s3Client.putObject（BUCKET_NAME，s3Key，附件）; 
 Document doc = new Document（comment，s3Key，attachment.getName（））; 
 doc.save（）; 
 listUploads（）; 
  




I want to deploy an app in Heroku to try their new Play! Framework support. For what I've read in the site (I gotta confess I did not try it yet) they don't provide any file system. This means that (probably) Blob fields used in Play to store files won't work properly.

Could somebody:

• Confirm if you can use the Play Blob in Heroku?
• Provide the "best" alternative to store files in Heroku? Is better to store them in the database (they use PostgreSQL) or somewhere else?

解决方案

I put an example of how to do this with Amazon S3 on github:
https://github.com/jamesward/plays3upload

Basically you just need to send the file to S3 and save the key in the entity:

AWSCredentials awsCredentials = new BasicAWSCredentials(System.getenv("AWS_ACCESS_KEY"), System.getenv("AWS_SECRET_KEY"));
AmazonS3 s3Client = new AmazonS3Client(awsCredentials);
s3Client.createBucket(BUCKET_NAME);
String s3Key = UUID.randomUUID().toString();
s3Client.putObject(BUCKET_NAME, s3Key, attachment);
Document doc = new Document(comment, s3Key, attachment.getName());
doc.save();
listUploads();

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