简单端口扫描器java的设计与实现

简单端口扫描器java的设计与实现

IPScan类的实现

package scan.pratice;

import https://www.360docs.net/doc/4c5452755.html,.InetAddress;

import https://www.360docs.net/doc/4c5452755.html,.Socket;

import https://www.360docs.net/doc/4c5452755.html,.UnknownHostException;

import java.util.ArrayList;

import java.util.ListIterator;

public class IPScan {

static long startTime=System.currentTimeMillis(); //获取开始时间

public static void main(String[] args) {

if(args.length !=2){

System.out.println("参数不对");

}

int startIP = Integer.parseInt(args[0]);

//获得起始IP，因为args[]是String类型，所以要强制转换成int类型

int endIP = Integer.parseInt(args[1]);

//获得终止IP，同上

ArrayList result = new ArrayList();

//ip地址扫描

for(int id=startIP;id<=endIP;id++){

String addres= "10.28.23.";

try {

Socket s=new Socket(addres+id,8000); //建立连接

} catch (UnknownHostException e ) {

}catch(Exception e){

//System.out.println(e.toString());

if(e.toString().endsWith("https://www.360docs.net/doc/4c5452755.html,.ConnectException: Connection timed out: connect")){

System.out.println(addres+id+":not exist.");

}else{

System.out.println(addres+id+":exist.");

}

}

}

ListIterator li = result.listIterator();

//获得ArrayList的ListIterator

while(li.hasNext()){ //如果li里面有元素

System.out.println(li.next().toString());

//打印出指向的元素，同时将指向下一个元素

}

long endTime=System.currentTimeMillis(); //获取结束时间

System.out.println("程序运行时间："+(endTime-startTime)+"ms");

}

}

PortScan类的实现

package scan.pratice;

import java.io.IOException;

import https://www.360docs.net/doc/4c5452755.html,.InetAddress;

import https://www.360docs.net/doc/4c5452755.html,.Socket;

import https://www.360docs.net/doc/4c5452755.html,.UnknownHostException;

import java.util.ArrayList;

import java.util.ListIterator;

public class PortScan {

static long startTime=System.currentTimeMillis(); //获取开始时间

public static void main(String[] args) {

if(args.length !=3){

System.out.println("参数不对");

}

String ip = args[0]; //获得我们指定的服务器地址

int startPort = Integer.parseInt(args[1]);

//获得起始端口号，因为args[]是String类型，所以要强制转换成int类型

int endPort = Integer.parseInt(args[2]);

//获得终止端口号，同上

if(startPort<1||startPort>65535||endPort<1||endPort>65535){

//检查端口是否在合法范围1～65535

System.out.printf("端口范围必须在1～65535以内!");

return;

}else if(startPort>endPort){ //比较起始端口和终止端口

System.out.println("端口输入有误! 起始端口必须小于终止端口");

return;

}

InetAddress address;

try{

address = InetAddress.getByName(ip);

//转换类型

}catch(UnknownHostException e){

System.out.println("无法找到"+ ip);

return;

}

ArrayList result = new ArrayList();

//端口扫描

for(int nport=startPort;nport<=endPort;nport++){

String typeport="";

switch( nport ){//其实这儿可以不用switch，直接用个hash表记录就可以case 21:

typeport = "(FTP)";

break;

case 23:

typeport = "(TELNET)";

break;

case 25:

typeport = "(SMTP)";

break;

case 80:

typeport = "(HTTP)";

break;

case 110:

typeport = "(POP)";

break;

case 139:

typeport = "(netBIOS)";

break;

case 1433:

typeport = "(SQL Server)";

break;

case 3389:

typeport = "(Terminal Service)";

break;

case 443:

typeport = "(HTTPS)";

break;

case 1521:

typeport = "(Oracle)";

break;

}

//从起始端口到终止端口进行循环

try{

//System.out.print("Scanning "+nport); //打印扫描进度

System.out.println(ip + ":"+nport);

Socket s=new Socket(address,nport); //建立连接

//关闭连接

if(s.isConnected()){

result.add("端口号："+nport+typeport+" open");

}

s.close();

//将打开的端口添加到ArrayList result里面

//System.out.println(" : open"); //打印状态

}catch(IOException e){

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

//System.out.println("：close"); //打印状态

result.add("端口号："+nport+typeport+" close");

}

}

ListIterator li = result.listIterator();

//获得ArrayList的ListIterator

while(li.hasNext()){ //如果li里面有元素

System.out.println(li.next().toString());

//打印出指向的元素，同时将指向下一个元素

}

long endTime=System.currentTimeMillis(); //获取结束时间

System.out.println("程序运行时间："+(endTime-startTime)+"ms");

}

}

TCPConnect类的实现

package scan.pratice;

import java.io.IOException;

import https://www.360docs.net/doc/4c5452755.html,.InetAddress;

import https://www.360docs.net/doc/4c5452755.html,.Socket;

import https://www.360docs.net/doc/4c5452755.html,.UnknownHostException;

import java.util.ArrayList;

import java.util.ListIterator;

public class TCPConnect {

static long startTime=System.currentTimeMillis(); //获取开始时间

public static void main(String[] args) {

if(args.length !=3){

System.out.println("参数不对");

}

String ip = args[0]; //获得我们指定的服务器地址

int startPort = Integer.parseInt(args[1]);

//获得起始端口号，因为args[]是String类型，所以要强制转换成int类型

int endPort = Integer.parseInt(args[2]);

//获得终止端口号，同上

if(startPort<1||startPort>65535||endPort<1||endPort>65535){

//检查端口是否在合法范围1～65535

System.out.printf("端口范围必须在1～65535以内!");

return;

}else if(startPort>endPort){ //比较起始端口和终止端口

System.out.println("端口输入有误! 起始端口必须小于终止端口");

return;

}

InetAddress address;

try{

address = InetAddress.getByName(ip);

//转换类型

}catch(UnknownHostException e){

System.out.println("无法找到"+ ip);

return;

}

ArrayList result = new ArrayList();

/*

//端口扫描

for(int nport=startPort;nport<=endPort;nport++){

String typeport="";

switch( nport ){//其实这儿可以不用switch，直接用个hash表记录就可以case 21:

typeport = "(FTP)";

break;

case 23:

typeport = "(TELNET)";

break;

case 25:

typeport = "(SMTP)";

break;

case 80:

typeport = "(HTTP)";

break;

case 110:

typeport = "(POP)";

break;

case 139:

typeport = "(netBIOS)";

break;

case 1433:

typeport = "(SQL Server)";

break;

case 3389:

typeport = "(Terminal Service)";

break;

case 443:

typeport = "(HTTPS)";

break;

case 1521:

typeport = "(Oracle)";

break;

}

//从起始端口到终止端口进行循环

try{

//System.out.print("Scanning "+nport); //打印扫描进度

System.out.println(ip + ":"+nport);

Socket s=new Socket(address,nport); //建立连接

//关闭连接

if(s.isConnected()){

result.add("端口号："+nport+typeport+" open");

}

s.close();

//将打开的端口添加到ArrayList result里面

//System.out.println(" : open"); //打印状态

}catch(IOException e){

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

//System.out.println("：close"); //打印状态

result.add("端口号："+nport+typeport+" close");

}

}*/

//ip地址扫描

for(int id=178;id<183;id++){

String addres= "10.28.23.";

try {

Socket s=new Socket(addres+id,8000); //建立连接

} catch (UnknownHostException e ) {

}catch(Exception e){

//System.out.println(e.toString());

if(e.toString().endsWith("https://www.360docs.net/doc/4c5452755.html,.ConnectException: Connection timed out: connect")){

System.out.println(addres+id+":not exist.");

}else{

System.out.println(addres+id+":exist.");

}

}

}

ListIterator li = result.listIterator();

//获得ArrayList的ListIterator

while(li.hasNext()){ //如果li里面有元素

System.out.println(li.next().toString());

//打印出指向的元素，同时将指向下一个元素

}

long endTime=System.currentTimeMillis(); //获取结束时间

System.out.println("程序运行时间："+(endTime-startTime)+"ms");

}

}