Struggling with DataInputStream and Socket...

Question

Hi all,
I have the following problem. I need two remote hosts to exchange some data using a socket: the client is running on a Linux box and sends both ASCII and binary data. The server is running within a Tomcat server and needs to parse the ASCII text and then stores the (following) binary data in a DBMS. I chose to use DataInputStream to read from the socket: however, when I use the readUTF() function in order to get the ASCII data (the very first data sent is a simple banner) I get a EOFException (after some time, the banner is basically never read).
DataInput Stream dis = new DataInputStream(new BufferedInputStream(client.getInputStream()));     
String line = dis.readUTF();
java.io.EOFException
     at java.io.DataInputStream.readFully(Unknown Source)
     at java.io.DataInputStream.readUTF(Unknown Source)
     at java.io.DataInputStream.readUTF(Unknown Source)
     at neptuneconsole.XXXyyyZZZ.run(XXXyyyZZZ.java:86)
     at java.lang.Thread.run(Unknown Source)
client is a socket instantiated by a ServerSocket that was created by SSLServerSocketFactory.
Any help will be REALLY appreciated!

Answer 1

mj4318 wrote:
readByte() itself does not block until some data are availableWhat does this mean? What does it return? If it returns -1, then you have reached the end of the stream - i.e. you have read everything the other end has written so far and the other end has closed the connection so it's never going to write anything more. If it's returning something other than -1, then that's the byte you've read from the connection.
This will really be a lot easier if you show us code.