I have a Websphere application that creates/modfies/deletes files as part of the business process.
Now it has to be able to copy files over to a different, archive server. How can I give the Websphere process on Server1 access to Server2/myArchiveDir?
Is there a userId that is associated with Websphere?
(We are on a Windows machine.)
you need one side to be a server and the other to be a client.
Server Connection:
ServerSocket servSocket = new ServerSocket(port);
Socket connect = servSocket.accept();
File file = new File(location);
FileWriter write = new FileWriter(file);
write.write(connect.getInputStream());
file.close();
write.close();
connection.close();
Client Side:
File transferFile = new File(file);
InputStream in = new InputStream(transferFile);
// Create connection
Socket conn = new Socket(address, port);
OutputStream out = conn.getOutputStream();
copyStream(in,out);
in.close();
out.close();
conn.close();
Related
I am trying to make raspberry listen to the java socket server. I run the server code with eclipse and then log in to raspberry desktop and run client.jar. When i run client.jar it does not connect to my server and does not throw any errors. It just 'stays' in the Lxterminal forever and does nothing.
Server
int port = 6666;
Inet4Address add = (Inet4Address) Inet4Address.getLocalHost();
System.err.println(add);
ServerSocket server = new ServerSocket(6666, 1, add);
Socket client = server.accept();
System.err.println("acc");
DataInputStream in = new DataInputStream(client.getInputStream());
DataOutputStream out = new DataOutputStream(client.getOutputStream());
while (true){
BufferedReader read = new BufferedReader(new InputStreamReader(System.in));
String line = read.readLine();
out.writeUTF(line);
out.flush();
System.err.println(in.readUTF());
}
Client
int port = 6666;
Socket server = new Socket("My ip", port);
DataInputStream in = new DataInputStream(server.getInputStream());
DataOutputStream out = new DataOutputStream(server.getOutputStream());
while (true)
{
String msg = in.readUTF();
if (msg.contentEquals("close"))
server.close();
else if (msg.equals("forward"))
{
out.writeUTF("I go forward master");
out.flush();
}
UPDATE:
I have resolved this problem few seconds ago.My firewall was blocking any connection so the raspberry couldn't connect.
Solution: Go to firewall and network connection and turn it off for private and public connections. I am using Win10
I'm trying to make a video file transfer but am having problems getting the server to start sending bytes.
The first step is for the client to connect, the socket gets accepted. Then the client sends the video file name but the server never reads this.
This is the code for the server up until it blocks:
try(ServerSocket serverSocket = new ServerSocket(4005))
{
Socket socket = serverSocket.accept();
System.out.println("accepted");
OutputStream os = socket.getOutputStream();
BufferedReader receiveReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
System.out.println("This gets printed");
String request = receiveReader.readLine();//never passes this line
System.out.println("This doesn't get printed");
and this is the client up until it blocks waiting for the server to send the video bytes:
try(Socket socket = new Socket(IPAddress, 4005))
{
byte[] messageBytes = new byte[10000];
DataOutputStream outputStream = new DataOutputStream(socket.getOutputStream());
outputStream.writeBytes("REQUEST;"+videoPath);//This is the line that should send the bytes for the server to read, so it won't block.
String home = System.getProperty("user.home");
String path = home+"\\Downloads" + videoName;
path = path.trim();
FileOutputStream fos = new FileOutputStream(path);
BufferedOutputStream bos = new BufferedOutputStream(fos);
InputStream is = socket.getInputStream();
int bytesRead = 0;
System.out.println("Downloading file...");
while((bytesRead = is.read(messageBytes))!=-1)//This blocks here
Why on earth isn't the server reading the "Request" + videoPath bytes that the server is sending? I tried outputStream.flush() as well, no luck.
Usual problem. You're reading a line but you aren't writing a line. Add a line terminator to the sent message.
When you fix this you will then discover that you can't mix buffered streams and readers on the same socket. I suggest you do all the I/O via the DataInput/OutputStream classes, using read/writeUTF() for the name.
If you're sending multiple files see my answer there.
I have implemented a client/server to send files . When there is no more messages exchanged after sending the file , the code works perfectly , but if the client sends some string to the server directly after the code of receiving the file both client and server stop doing anything and the file is not sent it's something like if they both get stuck in deadlock but I'm not really sure :
Here is the code to send the file without sending anything after it , which works:
Client
String filename;
BufferedReader UIn = new BufferedReader(new InputStreamReader(System.in));
Socket peer = new Socket("localhost",9999);
System.out.print("Enter the file name to download :");
filename= UIn.readLine();
///////////////////////////////
DataOutputStream OutToServer;
OutToServer = new DataOutputStream(peer.getOutputStream());
OutToServer.writeBytes(filename+"\n");
FileOutputStream fos = new FileOutputStream(new File("D:/new.txt"));
BufferedOutputStream out = new BufferedOutputStream(fos);
InputStream in = peer.getInputStream();
buffer = new byte[1024];
while((count=in.read(buffer))>0)
{
fos.write(buffer, 0, count);
System.out.println(buffer);
}
fos.close();
System.out.println("done");
Server:
ServerSocket server =null;
try {
server = new ServerSocket(9999);
while(true)
{
client= server.accept();
//System.out.println("Connection accepted");
BufferedReader inFromClient = new BufferedReader(new InputStreamReader(client.getInputStream()));
DataOutputStream outToclient =new DataOutputStream(client.getOutputStream());
String request=inFromClient.readLine();
file = new File(request);
if (file.exists())
{
OutputStream out = client.getOutputStream();
BufferedInputStream in = new BufferedInputStream(new FileInputStream(file));
while((count =in.read(buffer)) >0)
{
out.write(buffer,0,count);
out.flush();
}
}
// System.out.println(request);
// outToclient.writeBytes("alaa\n");
}
} catch (IOException ex) {
Logger.getLogger(ServerWork.class.getName()).log(Level.SEVERE, null, ex);
}
But if I try to send anything after the loop between client and server it stops working . Is it because I'm using readLine() and writeBytes()?
You are using both DataOutputStream and OutputStream. I think that they
should work together but what I guess you should do is to flush the buffer (or close it).
After you're done writing everything you want to send, some data may still be in the buffer. Now you will have to flush the buffer, to force it to send all the data.(as it is said here).
outToclient.writeBytes("alaa\n");
outToclient.flush();
I want my Android phone to connect to my other server. I’m not sure how do I send request to the server receive the response.
Here is my code
try
{
Socket connfd = new Socket("192.168.1.100", 5000 );
InputStream in = connfd.getInputStream();
OutputStream out = connfd.getOutputStream();
BufferedReader con = new BufferedReader(new InputStreamReader(System.in));
}catch(IOException e1){
e1.printStackTrace();
}
For some reasons i have to set up on android SocketServer which waits for connection with computer. All is going good, socket with client (computer) is creating, but streams don't open. It's just pausing without any error or message.
client:
s = new Socket(ip, 4567);
ois = new ObjectInputStream(s.getInputStream());
System.out.println("ois..");// not showing, so can't open input stream
oos = new ObjectOutputStream(s.getOutputStream());
System.out.println("oos.."); // same here
server:
socket = new ServerSocket(4567);
System.out.println("Waiting for connection,,"); // showing
client = socket.accept();
System.out.println("Connected"); //showing
ois = new ObjectInputStream(client.getInputStream());
System.out.println("ois.."); // not showing
oos = new ObjectOutputStream(client.getOutputStream());
System.out.println("oos.."); // not showing too
System.out.println("Stream,s opened");
My apk has INTERNET premissions. I'm using 4567 port. Any other application doesn't block the port.
What can be wrong?
Try opening the ObjectOutputStream first in your server.
socket = new ServerSocket(4567);
System.out.println("Waiting for connection,,"); // showing
client = socket.accept();
System.out.println("Connected"); //showing
oos = new ObjectOutputStream(client.getOutputStream());
ois = new ObjectInputStream(client.getInputStream());
System.out.println("Stream,s opened");
I don't see any timeouts in there, which is why it just stops.
There's probably some network problem; have you verified the IP address of the device is correct?
It's unlikely, but there could be some firewall rule blocking the connection.