scanhandlerimpl.java

一个JAVA实现的端口查询工具

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package portscan.service.impl;

import java.io.IOException;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;
import portscan.service.ScanHandler;

/**
 *
 * @author 小虫
 */
public class ScanHandlerImpl implements ScanHandler {

    private String ipAddress;

    public ScanHandlerImpl(String ipAddress) {
        this.ipAddress = ipAddress;
    }

    public boolean isPortOpen(int port) {
        Socket socket = null;
        try {
            socket = new Socket(ipAddress, port);
            return true;
        } catch (IOException ex) {
//            Logger.getLogger(ScanHandlerImpl.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            try {
                if(socket!=null){
                    socket.close();
                }
                
            } catch (IOException ex) {
                Logger.getLogger(ScanHandlerImpl.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        return false;
    }

}