java如何读取本机arp表？

[chygao]

请问：Java有对缓冲区进行操作的么？我想读取本机arp表，来获得局域网内某一ip的Mac地址，请高人指教！

[lz12366007]

public void startdemo() throws IOException
{
ProcessBuilder builder = new ProcessBuilder("cmd","/c", "arp -a");
builder.directory(new File("e:/"));
Process process = builder.start();
InputStream is = process.getInputStream();
InputStreamReader isr = new InputStreamReader(is, "GBK");
BufferedReader br = new BufferedReader(isr);
String line;
//System.out.printf("Output of running %s is:", Arrays.toString(args));
while ((line = br.readLine()) != null)
{
System.out.println(line);
}

[lz12366007]

上面有点错误

public void startdemo() throws IOException
	{
		ProcessBuilder builder = new ProcessBuilder("cmd","/c",  "arp -a");
		
		Process process = builder.start();
		InputStream is = process.getInputStream();
		InputStreamReader isr = new InputStreamReader(is, "GBK");
		BufferedReader br = new BufferedReader(isr);
		String line;
		while ((line = br.readLine()) != null) 
		{
		System.out.println(line);
	   }

}

[lz12366007]

我觉得应该调用cmd命令 获得返回的数据。。。

[chygao]

[Quote=引用楼主 chygao 的回复:]
请问：Java有对缓冲区进行操作的么？我想读取本机arp表，来获得局域网内某一ip的Mac地址，请高人指教！
[/Quote]


能不能详细点，谢谢！

[luopowusheng]

http://www.javaeye.com/topic/417037
看看这个帖子，对楼主也许有帮助！