Uploaded file creation saving for future usage in GWT server side

Question

I am new to GWT, I am facing some issue with file creation.

I am uploading a file from client side and want to store that file in server side and parse it and create tables in database for the data present in the file.

When I try to create a file at server side there is some file.io permission issue App engine is not allowing me to create the file.

Please let me know how can I solve this issue.

I did browse net, didn't find any solutions.

Thanks in Advance, Pradeep

Answer 1

You cannot store files to GAE as you do normally on a Web Server because you have no direct access to the file system. GAE gives you other ways to that using services. There are two ways to store files on GAE :

• BlobStore
• Google Cloud Storage

Answer 2

我建议尝试gwtupload ，它有一个servlet和一组FileItemFactory，用于将上传的文件存储在BlobStore，FileApi和MemCache中。