Java - 通过TCP套接字传输BufferedImage

Question

I am not very good in Java, and I need to send a BufferedImage through a TCP socket. I already managed to make a connection (and send strings), but I couldn't really find out which Writer I should use in order to send and recover the BufferedImage.

Answer 1

You should ImageIO.write to serialize an image as a byte stream using some format (PNG, JPG, etc.).

Then you should send the byte stream over wire. The difficulty here is you don't know the size of the stream ahead. Simple solution is save all content into in-memory byte array (use ByteArrayOutputStream for it) then send it. Or if it doesn't fit into memory you should do something smart (save it into temporary file, or use some chunked protocol or send unique terminator mark).

Answer 2

请参阅ImageIO类 ，其中包含用于向/从各种输入/输出流读取和写入BufferedImage和RenderedImage的方法。