Fping操作
一、fping 的优点：
1. 可以一次ping多个主机
2. 可以从主机列表文件ping
3. 结果清晰 便于脚本处理
4. 速度快
二 、常用参数介绍
-a：只显示出存活的主机（相反参数-u）
1、通过标准输入方式
fping + IP1 + IP2
-g 支持主机端的方式 192.168.1.1 192.168.1.255 或者 192.168.1.0/24
2、通过读取一个文件中IP内容
fping -f filename
Usage: fping [options] [targets...]
-a show targets that are alive
-A show targets by address
-b n amount of ping data to send, in bytes (default 56)
-B f set exponential backoff factor to f
-c n count of pings to send to each target (default 1)
-C n same as -c, report results in verbose format
-e show elapsed time on return packets
-f file read list of targets from a file ( - means stdin) (only if no -g specified)
-g generate target list (only if no -f specified) (specify the start and end IP in the target list, or supply a IP netmask) (ex. fping -g 192.168.1.0 192.168.1.255 or fping -g 192.168.1.0/24)
-i n interval between sending ping packets (in millisec) (default 25)
-l loop sending pings forever
-m ping multiple interfaces on target host
-n show targets by name (-d is equivalent)
-p n interval between ping packets to one target (in millisec) (in looping and counting modes, default 1000)
-q quiet (don't show per-target/per-ping results)
-Q n same as -q, but show summary every n seconds
-r n number of retries (default 3)
-s print final stats
-t n individual target initial timeout (in millisec) (default 500)
-u show targets that are unreachable
-v show version
targets list of targets to check (if no -f specified)
工具类：
package com.kyland.view.Utils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;
import java.util.logging.Logger;
public class TopoUtils {
/**
* Ping操作
* @return
*/
public static boolean isConnect( String ip ){
boolean connect = false;
Runtime runtime = Runtime.getRuntime();
Process process;
try {
process = runtime.exec("ping -n 4 " + ip);
InputStream is = process.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line = null;
StringBuffer sb = new StringBuffer();
while ((line = br.readLine()) != null) {
sb.append(line);
}
// System.out.println("返回值为:"+sb);
is.close();
isr.close();
br.close();
if (null != sb && !sb.toString().equals("")) {
String logString = "";
if (sb.toString().indexOf("TTL") > 0) {
// 网络畅通
connect = true;
} else {
// 网络不畅通
connect = false;
}
}
} catch (IOException e) {
e.printStackTrace();
}
return connect;
}
public static List<String> connectIpList(String start, String end ){
List<String> connect = new ArrayList<>();
Runtime runtime = Runtime.getRuntime();
Process process;
try {
process = runtime.exec("fping -g" +start+"/"+end+" -p");
InputStream is = process.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line = null;
StringBuffer sb = new StringBuffer();
while ((line = br.readLine()) != null) {
if(line.contains("Reply") || line.contains("reply")){
String[] strs = line.split("from")[1].split(":");
connect.add(strs[0].replace(" ",""));
System.out.println("toptutils>>"+strs[0].replace(" ",""));
}
}
is.close();
isr.close();
br.close();
} catch (IOException e) {
e.printStackTrace();
}
return connect;
}
/**
* 通过IP首尾获取IP地址
* @param ipfrom 起始IP
* @param ipto 结束IP
* @return
*/
public static Queue getIPArr(String ipfrom, String ipto) {
ArrayList<String> ips = new ArrayList<String>();
Queue<String> ipss = new LinkedList<>();
String[] ipfromd = ipfrom.split("\\.");
String[] iptod = ipto.split("\\.");
int[] int_ipf = new int[4];
int[] int_ipt = new int[4];
for (int i = 0; i < 4; i++) {
int_ipf[i] = Integer.parseInt(ipfromd[i]);
int_ipt[i] = Integer.parseInt(iptod[i]);
}
for (int A = int_ipf[0]; A <= int_ipt[0]; A++) {
for (int B = (A == int_ipf[0] ? int_ipf[1] : 0); B <= (A == int_ipt[0] ? int_ipt[1]
: 255); B++) {
for (int C = (B == int_ipf[1] ? int_ipf[2] : 0); C <= (B == int_ipt[1] ? int_ipt[2]
: 255); C++) {
for (int D = (C == int_ipf[2] ? int_ipf[3] : 0); D <= (C == int_ipt[2] ? int_ipt[3]
: 255); D++) {
ips.add(new String(A + "." + B + "." + C + "." + D));
ipss.add(new String(A + "." + B + "." + C + "." + D));
// System.out.println(A + "." + B + "." + C + "." + D);
}
}
}
}
return ipss;
}
/**
*@Description:
*@Author:
*@date: 2019/7/25 10:30
*/
public static List<String> connectIpList(List<String> ips){
List<String> connect = new ArrayList<>();
Runtime runtime = Runtime.getRuntime();
Process process;
StringBuffer stringBuffer=new StringBuffer();
try {
for (String ip : ips) {
stringBuffer.append(ip+" ");
}
process = runtime.exec("fping "+stringBuffer);
InputStream is = process.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line = null;
StringBuffer sb = new StringBuffer();
while ((line = br.readLine()) != null) {
if(line.contains("Reply") || line.contains("reply")){
String[] strs = line.split("from")[1].split(":");
connect.add(strs[0].replace(" ",""));
System.out.println("toptutils>>"+strs[0].replace(" ",""));
}
}
is.close();
isr.close();
br.close();
} catch (IOException e) {
e.printStackTrace();
}
return connect;
}
public static void main(String args[]){
List<String> list=TopoUtils.connectIpList("192.168.0.10","192.168.0.15");
for (String s : list) {
System.out.println(s);
}
List<String> list1=new ArrayList<>();
list1.add("192.168.177.1");
list1.add("192.168.177.2");
list1.add("192.168.177.3");
list1.add("192.168.177.4");
list1.add("192.168.177.5");
list1.add("192.168.177.6");
list1.add("192.168.177.7");
list1.add("192.168.177.8");
list1.add("192.168.177.9");
list1.add("192.168.177.10");
System.out.println("==================");
for (String s : TopoUtils.connectIpList(list1)) {
System.out.println(s);
}
}
}
参考https://blog.csdn.net/chengqiuming/article/details/78602108