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Java类库判断两台机器之间网络是否可达，常用ping方法来实现。
import java.net.InetAddress;
public class Test {
public static void main(String[] args) {
String IP = "10.1.11.225";
if (Test.ping(IP))
System.out.println("SUCCESS - ping " + IP + " with no interface specified");
else
System.out.println("FAILURE - ping " + IP + " with no interface specified");
}
/**
*
* @param host 主机地址
*
* @return boolean
* */
public static boolean ping(String host) {
String $host = host;
try {
InetAddress address = null;
if ($host != null && $host.trim().length() > 0) {
address = InetAddress.getByName($host);
}
if (address != null) {
} else {
System.out.println($host + " is unrecongized");
}
if (address.isReachable(5000))
return true;
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
}