将文件存储在对象内

Question

I have a Java client/server desktop application, where the communication between client and server is based on Sockets, and the messages exchanged between client and server are serialized objects (message objects, that incapsulate requests and responses).

Now I need to make the client able to upload a file from the local computer to the server, but I can't send the File through the buffer, since the Buffer is already used for exchanging the message objects.

Should i open another stream to send the file, or is there any better way to upload a file for my situation?

Answer 1

You really only have two options:

1. Open another connection dedicated to the file upload and send it through that.
2. Make a message object representing bits of a file being uploaded, and send the file in chunks via these message objects.

The former seems simpler & cleaner to me, requiring less overhead and less complicated code.

Answer 2

I need to make the client able to upload a file from the local computer to the server

- Open a Solely Dedicated Connection to the Server for File uploading.

- Use File Transfer Protocol to ease your work, and moreover its quite easy and reliable to use the Apache's common lib for File uploading and downloading ....

See this link:

http://commons.apache.org/net/

Answer 3

您可以保留解决方案，并将文件内容作为对象（例如作为字符串）传递-如果内容包含麻烦的字符，请使用内容的Base64编码（或类似格式）