Java实现局域网IP地址扫描（跨网段ip地址扫描）

java扫描局域网地址主要通过CMD命令，主要通过Runtime和Process类，由于同一局域网下的IP地址比较多需要通过Java的多线程来扫描端口。

import java.io.BufferedInputStream;

import java.io.IOException;

import java.io.UnsupportedEncodingException;

import java.net.InetAddress;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

public class PingTask{

private String address;

public PingTask(String address){

this.address=address;

}

public PingResult run() {

Runtime runtime;

Process process;

try {

runtime=Runtime.getRuntime();

process=runtime.exec("ping "+address);

BufferedInputStream inputStream=(BufferedInputStream) process.getInputStream();

byte [] bt =new byte[1024];

StringBuffer buffer=new StringBuffer();

int len=0;

while((len=inputStream.read(bt, 0,bt.length))!=-1){

buffer.append(new String(bt, 0, len, "GBK"));

}

String regex="(\\d*)?";

String result="";

Pattern pattern=Pattern.compile(regex);

Matcher matcher=pattern.matcher(buffer.toString());

while(matcher.find()){

if(!matcher.group().equals("")){

rhttp://esult=matcher.group();

}

}

InetAddress inetAddress=InetAddress.getByName(address);

String hostname="";

if(!inetAddress.getHostName().equals(address)){

hostname=inetAddress.getHostName();

}

String mac="";

process=runtime.exec("arp -a "+address);

BufferedInputStream macinputStream=(BufferedInputStream) process.getInputStream();

byte [] macbt =new byte[1024];

StringBuffer macbuffer=new StringBuffer();

while((len=macinputStream.read(macbt, 0,macbt.length))!=-1){

macbuffer.append(new String(macbt, 0, len, "GBK"));

}

String[] macresult=macbuffer.toString().trim().split("\r\n");

if(!macbuffer.toString().contains("未找到 ARP")){

mac=macresult[2].substring(20, 40).trim();

}

PingResult pingResult=new PingResult(address,(100-Integer.parseInt(result))+"%",mac,hostname);

} catch (UnsupportedEncodingException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

return pingResult;

}

}

调用方法：

public static void main(String[] args) {

PingResult result=new PingTask("123.123.123.123");

System.out.println(result.toString());

}

PingResult 类

package com.xu.ip;

public class PingResult {

private static String address;//IP地址

private static String result;//是否可以连接

private static String physicialaddress;//物理地址

private static String hostname;//主机名

public String getPhysicialaddress() {

return physicialaddress;

}

public void setPhysicialaddress(String physicialaddress) {

PingResult.physicialaddress = physicialaddress;

}

public String getHostname() {

return hostname;

}

public void setHostname(String hostname) {

PingResult.hostname = hostname;

}

public PingResult(String address, String result) {

PingResult.address = address;

PingResult.result = result;

}

public PingResult() {

}

public PingResult(String address, String result, String physicialaddress, String hostname) {

PingResult.address = address;

PingResult.result = result;

PingResult.physicialaddress = physicialaddress;

PingResult.hostname = hostname;

}

public String getAddress() {

return address;

}

public void setAddress(String address) {

PingResult.address = address;

}

public String getResult() {

return result;

}

public void setResult(String result) {

PingResult.result = result;

}

@Override

public String toString() {

return "PingResult [getClass()=" + getClass() + ", hashCode()=" + hashCode() + ", toString()="

+ super.toString() + "]";

}

}

版权声明：本文内容由网络用户投稿，版权归原作者所有，本站不拥有其著作权，亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容，请联系我们jiasou666@gmail.com 处理，核实后本网站将在24小时内删除侵权内容。