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public void run() {
Message message = Message.obtain();
final String SERVER_IP="www.baidu.com";
try {
Process p1 = java.lang.Runtime.getRuntime().exec("ping -c 1 -w 3000 "+SERVER_IP);
int returnVal = p1.waitFor();
boolean reachable = (returnVal==0);
message.what = 6;
String desc = "连接状态..."+reachable;
message.obj = desc;
handler.sendMessage(message);
} catch (Exception e) {
e.printStackTrace();
}
}