Mixing
socket returning double input
0
I'm new to socket programming in Java and I made a simple client/server with sockets in Java where client need to input the options to access the function in server and I have this problem where the server send double input but I just need one.
Can anyone help me? thanks.
Server:
public static void main(String args) throws Exception {
try {
ServerSocket server = new ServerSocket(8888);
int counter = 0;
System.out.println("Server Started ....");
while (true) {
counter++;
Socket serverClient = server.accept();
// server accept the client connection request
System.out.println(" >> " + "Client No:" + counter + " started!");
DataInputStream inStream = new DataInputStream(serverClient.getInputStream());
DataOutputStream outStream = new DataOutputStream(serverClient.getOutputStream());
ServerClientThread sct = new ServerClientThread(serverClient, counter, inStream,
outStream);
// send the request to a separate thread
sct.start();
}
} catch (IOException e) {
System.out.println(e);
}
}
class ServerClientThread extends Thread {
final Socket serverClient;
final int clientNo;
final DataInputStream inStream;
final DataOutputStream outStream;
ServerClientThread(Socket inSocket, int counter, DataInputStream inStream,
DataOutputStream outStream) {
this.serverClient = inSocket;
this.clientNo = counter;
this.inStream = inStream;
this.outStream = outStream;
}
@Override
public void run() {
try {
String clientMessage = "", serverMessage = "";
while (!clientMessage.equals("bye")) {
outStream.writeUTF("1,2,3:");
clientMessage = inStream.readUTF();
switch (clientMessage) {
case "1":
outStream.writeUTF("masukkan number:");
outStream.flush();
serverMessage = inStream.readUTF();
outStream.writeUTF(serverMessage);
break;
default:
System.out.println("tidak ada pilihan!");
}
}
inStream.close();
outStream.close();
serverClient.close();
} catch (IOException ex) {
System.out.println(ex);
} finally {
System.out.println("Client -" + clientNo + " exit!! ");
}
}
}
Client:
public static void main(String args) throws Exception {
try {
Socket socket = new Socket("127.0.0.1", 8888);
DataInputStream inStream = new DataInputStream(socket.getInputStream());
DataOutputStream outStream = new DataOutputStream(socket.getOutputStream());
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String clientMessage = "", serverMessage = "";
while (!clientMessage.equals("bye")) {
System.out.println(inStream.readUTF());
String input = br.readLine();
outStream.writeUTF(input);
}
outStream.close();
outStream.close();
socket.close();
} catch (Exception e) {
System.out.println(e);
}
}
Error on Client Side:
1,2,3:
1
masukkan number:
12
12
3
1,2,3:
1
1,2,3:
1
masukkan number:
12
1
13
1,2,3:
14
1,2,3:
15
Error on Server Side:
Server Started ....
Client No:1 started!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
java.net.SocketException: Connection reset
Client -1 exit!!
java sockets serversocket
edited Nov 20 '18 at 13:36
xtratic
2,4691822
|
show 2 more comments
0
I'm new to socket programming in Java and I made a simple client/server with sockets in Java where client need to input the options to access the function in server and I have this problem where the server send double input but I just need one.
Can anyone help me? thanks.
Server:
public static void main(String args) throws Exception {
try {
ServerSocket server = new ServerSocket(8888);
int counter = 0;
System.out.println("Server Started ....");
while (true) {
counter++;
Socket serverClient = server.accept();
// server accept the client connection request
System.out.println(" >> " + "Client No:" + counter + " started!");
DataInputStream inStream = new DataInputStream(serverClient.getInputStream());
DataOutputStream outStream = new DataOutputStream(serverClient.getOutputStream());
ServerClientThread sct = new ServerClientThread(serverClient, counter, inStream,
outStream);
// send the request to a separate thread
sct.start();
}
} catch (IOException e) {
System.out.println(e);
}
}
class ServerClientThread extends Thread {
final Socket serverClient;
final int clientNo;
final DataInputStream inStream;
final DataOutputStream outStream;
ServerClientThread(Socket inSocket, int counter, DataInputStream inStream,
DataOutputStream outStream) {
this.serverClient = inSocket;
this.clientNo = counter;
this.inStream = inStream;
this.outStream = outStream;
}
@Override
public void run() {
try {
String clientMessage = "", serverMessage = "";
while (!clientMessage.equals("bye")) {
outStream.writeUTF("1,2,3:");
clientMessage = inStream.readUTF();
switch (clientMessage) {
case "1":
outStream.writeUTF("masukkan number:");
outStream.flush();
serverMessage = inStream.readUTF();
outStream.writeUTF(serverMessage);
break;
default:
System.out.println("tidak ada pilihan!");
}
}
inStream.close();
outStream.close();
serverClient.close();
} catch (IOException ex) {
System.out.println(ex);
} finally {
System.out.println("Client -" + clientNo + " exit!! ");
}
}
}
Client:
public static void main(String args) throws Exception {
try {
Socket socket = new Socket("127.0.0.1", 8888);
DataInputStream inStream = new DataInputStream(socket.getInputStream());
DataOutputStream outStream = new DataOutputStream(socket.getOutputStream());
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String clientMessage = "", serverMessage = "";
while (!clientMessage.equals("bye")) {
System.out.println(inStream.readUTF());
String input = br.readLine();
outStream.writeUTF(input);
}
outStream.close();
outStream.close();
socket.close();
} catch (Exception e) {
System.out.println(e);
}
}
Error on Client Side:
1,2,3:
1
masukkan number:
12
12
3
1,2,3:
1
1,2,3:
1
masukkan number:
12
1
13
1,2,3:
14
1,2,3:
15
Error on Server Side:
Server Started ....
Client No:1 started!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
java.net.SocketException: Connection reset
Client -1 exit!!
java sockets serversocket
edited Nov 20 '18 at 13:36
xtratic
2,4691822
Please clarify which is "double input"?
– xtratic
Nov 20 '18 at 13:47
Use a debugger and follow what is happening with the server and client writing and reading.
– xtratic
Nov 20 '18 at 14:03
you can see in error client, Server should only send 1 input but it return 3 1,2,3: <<-- option 1<<--option select masukkan number: 12<client input 12<-server input 3<-here it return another value
– user10109481
Nov 20 '18 at 14:03
that3is client input again
– xtratic
Nov 20 '18 at 14:06
1,2,3:(server message)1(client input and message)masukkan number:(server response)12(client input and message)12(server response)3(client input and message)1,2,3:(server response)
– xtratic
Nov 20 '18 at 14:08
|
show 2 more comments
0
0
0
I'm new to socket programming in Java and I made a simple client/server with sockets in Java where client need to input the options to access the function in server and I have this problem where the server send double input but I just need one.
Can anyone help me? thanks.
Server:
public static void main(String args) throws Exception {
try {
ServerSocket server = new ServerSocket(8888);
int counter = 0;
System.out.println("Server Started ....");
while (true) {
counter++;
Socket serverClient = server.accept();
// server accept the client connection request
System.out.println(" >> " + "Client No:" + counter + " started!");
DataInputStream inStream = new DataInputStream(serverClient.getInputStream());
DataOutputStream outStream = new DataOutputStream(serverClient.getOutputStream());
ServerClientThread sct = new ServerClientThread(serverClient, counter, inStream,
outStream);
// send the request to a separate thread
sct.start();
}
} catch (IOException e) {
System.out.println(e);
}
}
class ServerClientThread extends Thread {
final Socket serverClient;
final int clientNo;
final DataInputStream inStream;
final DataOutputStream outStream;
ServerClientThread(Socket inSocket, int counter, DataInputStream inStream,
DataOutputStream outStream) {
this.serverClient = inSocket;
this.clientNo = counter;
this.inStream = inStream;
this.outStream = outStream;
}
@Override
public void run() {
try {
String clientMessage = "", serverMessage = "";
while (!clientMessage.equals("bye")) {
outStream.writeUTF("1,2,3:");
clientMessage = inStream.readUTF();
switch (clientMessage) {
case "1":
outStream.writeUTF("masukkan number:");
outStream.flush();
serverMessage = inStream.readUTF();
outStream.writeUTF(serverMessage);
break;
default:
System.out.println("tidak ada pilihan!");
}
}
inStream.close();
outStream.close();
serverClient.close();
} catch (IOException ex) {
System.out.println(ex);
} finally {
System.out.println("Client -" + clientNo + " exit!! ");
}
}
}
Client:
public static void main(String args) throws Exception {
try {
Socket socket = new Socket("127.0.0.1", 8888);
DataInputStream inStream = new DataInputStream(socket.getInputStream());
DataOutputStream outStream = new DataOutputStream(socket.getOutputStream());
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String clientMessage = "", serverMessage = "";
while (!clientMessage.equals("bye")) {
System.out.println(inStream.readUTF());
String input = br.readLine();
outStream.writeUTF(input);
}
outStream.close();
outStream.close();
socket.close();
} catch (Exception e) {
System.out.println(e);
}
}
Error on Client Side:
1,2,3:
1
masukkan number:
12
12
3
1,2,3:
1
1,2,3:
1
masukkan number:
12
1
13
1,2,3:
14
1,2,3:
15
Error on Server Side:
Server Started ....
Client No:1 started!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
java.net.SocketException: Connection reset
Client -1 exit!!
java sockets serversocket
edited Nov 20 '18 at 13:36
xtratic
2,4691822
I'm new to socket programming in Java and I made a simple client/server with sockets in Java where client need to input the options to access the function in server and I have this problem where the server send double input but I just need one.
Can anyone help me? thanks.
Server:
public static void main(String args) throws Exception {
try {
ServerSocket server = new ServerSocket(8888);
int counter = 0;
System.out.println("Server Started ....");
while (true) {
counter++;
Socket serverClient = server.accept();
// server accept the client connection request
System.out.println(" >> " + "Client No:" + counter + " started!");
DataInputStream inStream = new DataInputStream(serverClient.getInputStream());
DataOutputStream outStream = new DataOutputStream(serverClient.getOutputStream());
ServerClientThread sct = new ServerClientThread(serverClient, counter, inStream,
outStream);
// send the request to a separate thread
sct.start();
}
} catch (IOException e) {
System.out.println(e);
}
}
class ServerClientThread extends Thread {
final Socket serverClient;
final int clientNo;
final DataInputStream inStream;
final DataOutputStream outStream;
ServerClientThread(Socket inSocket, int counter, DataInputStream inStream,
DataOutputStream outStream) {
this.serverClient = inSocket;
this.clientNo = counter;
this.inStream = inStream;
this.outStream = outStream;
}
@Override
public void run() {
try {
String clientMessage = "", serverMessage = "";
while (!clientMessage.equals("bye")) {
outStream.writeUTF("1,2,3:");
clientMessage = inStream.readUTF();
switch (clientMessage) {
case "1":
outStream.writeUTF("masukkan number:");
outStream.flush();
serverMessage = inStream.readUTF();
outStream.writeUTF(serverMessage);
break;
default:
System.out.println("tidak ada pilihan!");
}
}
inStream.close();
outStream.close();
serverClient.close();
} catch (IOException ex) {
System.out.println(ex);
} finally {
System.out.println("Client -" + clientNo + " exit!! ");
}
}
}
Client:
public static void main(String args) throws Exception {
try {
Socket socket = new Socket("127.0.0.1", 8888);
DataInputStream inStream = new DataInputStream(socket.getInputStream());
DataOutputStream outStream = new DataOutputStream(socket.getOutputStream());
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String clientMessage = "", serverMessage = "";
while (!clientMessage.equals("bye")) {
System.out.println(inStream.readUTF());
String input = br.readLine();
outStream.writeUTF(input);
}
outStream.close();
outStream.close();
socket.close();
} catch (Exception e) {
System.out.println(e);
}
}
Error on Client Side:
1,2,3:
1
masukkan number:
12
12
3
1,2,3:
1
1,2,3:
1
masukkan number:
12
1
13
1,2,3:
14
1,2,3:
15
Error on Server Side:
Server Started ....
Client No:1 started!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
tidak ada pilihan!
java.net.SocketException: Connection reset
Client -1 exit!!
java sockets serversocket
java sockets serversocket
edited Nov 20 '18 at 13:36
xtratic
2,4691822
edited Nov 20 '18 at 13:36
xtratic
2,4691822
edited Nov 20 '18 at 13:36
xtratic
2,4691822
edited Nov 20 '18 at 13:36
xtratic
2,4691822
edited Nov 20 '18 at 13:36
xtratic
2,4691822
2,4691822
asked Nov 20 '18 at 12:43
user10109481
Please clarify which is "double input"?
– xtratic
Nov 20 '18 at 13:47
Use a debugger and follow what is happening with the server and client writing and reading.
– xtratic
Nov 20 '18 at 14:03
you can see in error client, Server should only send 1 input but it return 3 1,2,3: <<-- option 1<<--option select masukkan number: 12<client input 12<-server input 3<-here it return another value
– user10109481
Nov 20 '18 at 14:03
that3is client input again
– xtratic
Nov 20 '18 at 14:06
1,2,3:(server message)1(client input and message)masukkan number:(server response)12(client input and message)12(server response)3(client input and message)1,2,3:(server response)
– xtratic
Nov 20 '18 at 14:08
|
show 2 more comments
Please clarify which is "double input"?
– xtratic
Nov 20 '18 at 13:47
Use a debugger and follow what is happening with the server and client writing and reading.
– xtratic
Nov 20 '18 at 14:03
you can see in error client, Server should only send 1 input but it return 3 1,2,3: <<-- option 1<<--option select masukkan number: 12<client input 12<-server input 3<-here it return another value
– user10109481
Nov 20 '18 at 14:03
that3is client input again
– xtratic
Nov 20 '18 at 14:06
1,2,3:(server message)1(client input and message)masukkan number:(server response)12(client input and message)12(server response)3(client input and message)1,2,3:(server response)
– xtratic
Nov 20 '18 at 14:08
Please clarify which is "double input"?
– xtratic
Nov 20 '18 at 13:47
Please clarify which is "double input"?
– xtratic
Nov 20 '18 at 13:47
Use a debugger and follow what is happening with the server and client writing and reading.
– xtratic
Nov 20 '18 at 14:03
Use a debugger and follow what is happening with the server and client writing and reading.
– xtratic
Nov 20 '18 at 14:03
you can see in error client, Server should only send 1 input but it return 3 1,2,3: <<-- option 1<<--option select masukkan number: 12<client input 12<-server input 3<-here it return another value
– user10109481
Nov 20 '18 at 14:03
you can see in error client, Server should only send 1 input but it return 3 1,2,3: <<-- option 1<<--option select masukkan number: 12<client input 12<-server input 3<-here it return another value
– user10109481
Nov 20 '18 at 14:03
that
3 is client input again– xtratic
Nov 20 '18 at 14:06
that
3 is client input again– xtratic
Nov 20 '18 at 14:06
1,2,3: (server message) 1 (client input and message) masukkan number: (server response) 12 (client input and message) 12 (server response) 3 (client input and message) 1,2,3: (server response)– xtratic
Nov 20 '18 at 14:08
1,2,3: (server message) 1 (client input and message) masukkan number: (server response) 12 (client input and message) 12 (server response) 3 (client input and message) 1,2,3: (server response)– xtratic
Nov 20 '18 at 14:08
|
show 2 more comments
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Please clarify which is "double input"?
– xtratic
Nov 20 '18 at 13:47
Use a debugger and follow what is happening with the server and client writing and reading.
– xtratic
Nov 20 '18 at 14:03
you can see in error client, Server should only send 1 input but it return 3 1,2,3: <<-- option 1<<--option select masukkan number: 12<client input 12<-server input 3<-here it return another value
– user10109481
Nov 20 '18 at 14:03
that
3is client input again– xtratic
Nov 20 '18 at 14:06
1,2,3:(server message)1(client input and message)masukkan number:(server response)12(client input and message)12(server response)3(client input and message)1,2,3:(server response)– xtratic
Nov 20 '18 at 14:08