Android：ping没有/ system / bin / ping

Question

On some devices, the binary /system/bin/ping seems to be removed. 在某些设备上，似乎删除了binary /system/bin/ping 。 When I connect the device by USB and type 当我通过USB连接设备并键入时

adb shell ping

it says: 它说：

/system/bin/sh: ping: not found

Is it possible to still send ping requests from such devices? 是否仍然可以从这些设备发送ping请求？
What are other alternatives to find out if a server is reachable or if packets get lost? 找出服务器是否可达或数据包是否丢失的其他替代方法是什么？

Answer 1

What's about InetAddress.isReachable() ? 什么是InetAddress.isReachable（）？ Doc: 文档：

Tries to reach this InetAddress. 试图达到此InetAddress。 This method first tries to use ICMP (ICMP ECHO REQUEST), falling back to a TCP connection on port 7 (Echo) of the remote host. 此方法首先尝试使用ICMP（ICMP ECHO REQUEST），然后回退到远程主机的端口7（Echo）上的TCP连接。

Android：ping没有/ system / bin / ping

问题描述

1 个解决方案

解决方案1
4 2014-01-31 10:06:55

Android：ping没有/ system / bin / ping

问题描述

1 个解决方案

解决方案1 4 2014-01-31 10:06:55

解决方案1
4 2014-01-31 10:06:55