替代從Java調用平可執行文件在Android

Question

我使用下面的代碼來調用Android的設備的ping命令：

public static String pingServer() { 
PingResult result = new PingResult(); 
String jsonString = null; 
try { 
String command = "ping -c 3 192.168.8.185"; 
Process p = Runtime.getRuntime().exec(command); 
int status = p.waitFor(); 
InputStream input = p.getInputStream(); 
BufferedReader in = new BufferedReader(new InputStreamReader(input)); 
StringBuffer buffer = new StringBuffer(); 
String line = ""; 
while ((line = in.readLine()) != null) { 
buffer.append(line); 
buffer.append("\n"); 
} 


String bufferStr = buffer.toString(); 
     System.out.println(bufferStr); 

} catch (Exception e) { 
System.out.println("---------------exception-----------ping"); 
System.out.println(e.getMessage()); 
// e.printStackTrace(); 

} 
} 

BufferStr始終得到最後一行數據。發送

3個數據包，3接收，0％的分組丟失，時間2000毫秒

細節結果可以得到。

Answer 1

它可以更簡單和更容易使用InetAddress.isReachable：

if (InetAddress.getByName("192.168.8.185").isReachable(6000)) 
    ...