これが私が動作させようとしているコードですが、localhost が利用できないというこの IOException を取得しています。
public class MultiThreadChatClient implements Runnable{
// Declaration section
// clientClient: the client socket
// os: the output stream
// is: the input stream
static Socket clientSocket = null;
static PrintStream os = null;
static DataInputStream is = null;
static BufferedReader inputLine = null;
static boolean closed = false;
public static void main(String[] args) {
// The default port
int port_number=5050;
String host="localhost";
// Initialization section:
// Try to open a socket on a given host and port
// Try to open input and output streams
try {
clientSocket = new Socket(host, port_number);
inputLine = new BufferedReader(new InputStreamReader(System.in));
os = new PrintStream(clientSocket.getOutputStream());
is = new DataInputStream(clientSocket.getInputStream());
} catch (UnknownHostException e) {
System.err.println("Don't know about host "+host);
} catch (IOException e) {
System.err.println("Couldn't get I/O for the connection to the host "+host);
}
// If everything has been initialized then we want to write some data
// to the socket we have opened a connection to on port port_number
if (clientSocket != null && os != null && is != null) {
try {
// Create a thread to read from the server
new Thread(new MultiThreadChatClient()).start();
while (!closed) {
os.println(inputLine.readLine());
}
// Clean up:
// close the output stream
// close the input stream
// close the socket
os.close();
is.close();
clientSocket.close();
} catch (IOException e) {
System.err.println("IOException: " + e);
}
}
}
public void run() {
String responseLine;
// Keep on reading from the socket till we receive the "Bye" from the server,
// once we received that then we want to break.
try{
while ((responseLine = is.readLine()) != null) {
System.out.println(responseLine);
if (responseLine.indexOf("*** Bye") != -1) break;
}
closed=true;
} catch (IOException e) {
System.err.println("IOException: " + e);
}
}
}
私が得ている例外は次のとおりです。
ホスト localhost への接続の I/O を取得できませんでした