1、InetAddress.isReachable()方法 public static final boolean isNodeReachable(String hostname) {...try { InetAddress address = InetAddress.getByName(hostname); if (address.isReachable
ignoreLoopback = false; private boolean ownShutdown = false; /** * The timeout to be used on isReachable...hasCustomPingCommand() && isReachable(address)) { if (logger.isTraceEnabled()) {...getIpv6Command().equals(IPV6_DEFAULT_COMMAND); } protected boolean isReachable(InetAddress address...) throws IOException { return address.isReachable(networkInterface, 0, networkTimeout); }...Math.max(1, TimeUnit.MILLISECONDS.toSeconds(networkTimeout)); // it did not work with a simple isReachable
ignoreLoopback = false; private boolean ownShutdown = false; /** * The timeout to be used on isReachable...hasCustomPingCommand() && isReachable(address)) { if (logger.isTraceEnabled()) {...getIpv6Command().equals(IPV6_DEFAULT_COMMAND); } protected boolean isReachable(InetAddress address...) throws IOException { return address.isReachable(networkInterface, 0, networkTimeout); } ...Math.max(1, TimeUnit.MILLISECONDS.toSeconds(networkTimeout)); // it did not work with a simple isReachable
java查询当前广播域在线主机及主机名，不是多线程速度很慢，另外isReachable设置低于2000就会返回false，目前原因未知。。慢慢学习。。...+i; InetAddress target=InetAddress.getByName(host); if(target.isReachable(3000)){ count++; System.out.println
NetworkStatus status = [curReach currentReachabilityStatus]; if (status == NotReachable) { _isReachable...:nil cancelButtonTitle:@"确定" otherButtonTitles:nil]; [netAlert show]; } else { _isReachable
InetAddress类还提供了一个isReachable（）方法，用于测试是否可以到达该地址。...InetAddress ip = InetAddress.getByName（”www.oneedu.cn”）； //判断是否可达 System.out.println（”oneedu是否可达：” + ip.isReachable...local = InetAddress.getByAddress（new byte[] {127,0,0,1}）； System.out.println（”本机是否可达：” + local.isReachable
InetAddress常用方法： 验证是否可达： boolean isReachable(int timeout)：等价于isReachable(null, 0 , timeout) boolean...isReachable(NetworkInterface netif, int ttl, int timeout)：测试该地址是否可达。...InetAddress.getByName("www.baidu.com"); // 判断是否可达 System.out.println("百度是否可达：" + ip.isReachable...InetAddress.getByAddress(new byte[] { 127, 0, 0, 1 }); System.out.println("本机是否可达：" + local.isReachable
isHostReachable(String host, Integer timeOut) { try { return InetAddress.getByName(host).isReachable
/ public static boolean checkIp(String ip){ try { InetAddress.getByName(ip).isReachable
（239.192 - 239.195） boolean isReachable(int timeout)：等价于isReachable(null, 0 , timeout) boolean isReachable
另外，由于发送ICMP请求需要程序对系统有一定的权限，当这个权限无法满足时， isReachable方法将试着连接远程主机的TCP端口 7(Echo)。...Exception { int timeOut = 3000; // 超时应该在3钞以上 boolean status = InetAddress.getByName(ipAddress).isReachable...throws Exception { int timeOut = 3000; // 超时应该在3钞以上 boolean status = InetAddress.getByName(ipAddress).isReachable
status = (( s - mini) * 100 / ( maxi - mini)); if (addr.isReachable
System.out.println("localHost: " + InetAddress.getLocalHost()); System.out.println("isReachable...: " + InetAddress.getLocalHost().isReachable(1000)); } } 上述demo运行结果如下所示： ip: SHISAN-WIN10/192.168.44.1...hostName: SHISAN-WIN10 hostAddress: 192.168.44.1 localHost: SHISAN-WIN10/192.168.44.1 isReachable: true
的可连坐标集合进行比较，如果集合中坐标也有可连，则表示p1和p2可连，很明显，（0,1）和（0,10）为同一行且可连，这样就表示p1和p2两点存在可连路径了，代码如下所示： 简单分析下代码实现过程：在isReachable...= 0: 128 return False 129 return True 130 131 # 是否为同行或同列且可连 132 def isReachable(self, x1, y1, x2, y2)...跳过为0 或者同一个 259 if self.im2num_arr[x2][y2] == 0 or (x1 == x2 and y1 == y2): 260 continue 261 if self.isReachable
public boolean isReachable(int timeout) //可以指定从本机那个网卡、生存时间ttl 和指定时间来测试网络是否可达。...public boolean isReachable(NetworkInterface netif, int ttl, int timeout) Inet4Address 和 Inet6Address
i + x) = 0 && (y + j) < 10) { if (pathMap.map[i + x][j + y].isReachable
地址 (3)String getHostName()获取此IP地址的主机名 此外InetAddress类使用getLocalHost()方法获取本机IP地址对应的InetAddress实例，使用isReachable
领取专属 10元无门槛券
手把手带您无忧上云
云服务器
ICP备案
对象存储
腾讯会议
实时音视频
