Question

目前我要创建的是针对用户输入范围的ping扫描。

我已经尝试过互联网上的各种来源，但是它们非常模糊，或者我似乎无法让它们发挥作用，因为我不知道我是java的新手。

我尝试完全输入的一个来源但似乎无法开始工作位于 - http://www.coderanch.com/t/205721/sockets/java/Determining-computers-network

我尝试使用的代码是......

import java.net.Inet4Address; 
import java.net.InetAddress; 
import java.util.Arrays; 
import java.io.IOException; 
import java.io.*; 
import java.util.Scanner; 
import jpcap.*; 
import jpcap.packet.*; 

public class ARP{ 
public static void main(String[] args) throws IOException{ 

//Obtain the list of network interfaces 
NetworkInterface[] devices = JpcapCaptor.getDeviceList(); 

//for each network interface 
for (int i = 0; i < devices.length; i++) { 
//print out its name and description 
System.out.println(i+": "+devices[i].name + "(" + devices[i].description+")"); 

//print out its datalink name and description 
System.out.println(" datalink: "+devices[i].datalink_name + "(" + devices[i].datalink_description+")"); 

//print out its MAC address 
System.out.print(" MAC address:"); 
for (byte b : devices[i].mac_address) 
System.out.print(Integer.toHexString(b&0xff) + ":"); 
System.out.println(); 

//print out its IP address, subnet mask and broadcast address 
for (NetworkInterfaceAddress a : devices[i].addresses) 
System.out.println(" address:"+a.address + " " + a.subnet + " "+ a.broadcast); 
} 

//NetworkInterface[] devices = JpcapCaptor.getDeviceList(); 
int index =1; // set index of the interface that you want to open. 

//Open an interface with openDevice(NetworkInterface intrface, int snaplen, boolean promics, int to_ms) 
final JpcapCaptor captor=JpcapCaptor.openDevice(devices[index], 65535, false, 20); 









//JpcapCaptor captor=JpcapCaptor.openDevice(device[1], 65535, false, 20); 

//call processPacket() to let Jpcap call PacketPrinter.receivePacket() for every packet capture. 
//captor.processPacket(10,new PacketPrinter()); 
//System.out.println(packet); 
//captor.close(); 

} 
}

当我尝试使用它时，上面的代码有很多错误，我不完全确定我做错了什么。

我再次对Java很新，如果有人能指出我正确的方向，这将是一个很大的帮助。

我也试过使用这个youtube教程，它涵盖了端口扫描和Ping扫描，但没有太多运气。

http://www.youtube.com/watch?v=FvycwyAat6s

非常感谢任何帮助，

谢谢，

杰米

Answer 1

这段代码，我从这里https://stackoverflow.com/a/14110872/868040获取，ping一个设备。您可以轻松修改此选项以ping一系列设备。

import java.io.*;
import java.util.*;

public class JavaPingExampleProgram
{

  public static void main(String args[]) 
  throws IOException
  {
    // create the ping command as a list of strings
    JavaPingExampleProgram ping = new JavaPingExampleProgram();
    List<String> commands = new ArrayList<String>();
    commands.add("ping");
    commands.add("-c");
    commands.add("5");
    commands.add("74.125.236.73");
    ping.doCommand(commands);
  }

  public void doCommand(List<String> command) 
  throws IOException
  {
    String s = null;

    ProcessBuilder pb = new ProcessBuilder(command);
    Process process = pb.start();

    BufferedReader stdInput = new BufferedReader(new InputStreamReader(process.getInputStream()));
    BufferedReader stdError = new BufferedReader(new InputStreamReader(process.getErrorStream()));

    // read the output from the command
    System.out.println("Here is the standard output of the command:\n");
    while ((s = stdInput.readLine()) != null)
    {
      System.out.println(s);
    }

    // read any errors from the attempted command
    System.out.println("Here is the standard error of the command (if any):\n");
    while ((s = stdError.readLine()) != null)
    {
      System.out.println(s);
    }
  }

Ping Sweep，具有进入范围的能力

1 个答案: