Java HTTP Port Find isPortAvailable(int port)

Description

See if a port is available for listening on by trying to listen on it and seeing if that works or fails.

License

Apache License

Parameter

Parameter	Description
port	port to listen to

Return

true if the port was available for listening on

Declaration

public static boolean isPortAvailable(int port) 

Method Source Code

//package com.java2s;
/*//from  w w  w .jav  a 2 s .com
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.IOException;

import java.net.ServerSocket;

public class Main {
    /**
     * See if a port is available for listening on by trying to listen
     * on it and seeing if that works or fails.
     * @param port port to listen to
     * @return true if the port was available for listening on
     */
    public static boolean isPortAvailable(int port) {
        try {
            ServerSocket socket = new ServerSocket(port);
            socket.close();
            return true;
        } catch (IOException e) {
            return false;
        }
    }
}

Related

1. isPortAvailable(final int port)
2. isPortAvailable(int p)
3. isPortAvailable(int port)
4. isPortAvailable(int port)
5. isPortAvailable(int port)
6. isPortAvailable(int port)
7. isPortAvailable(int port)
8. isPortAvailable(int port)
9. isPortAvailable(int port)