簡單端口掃描器java的設計與實現(xiàn)

1、簡單端口掃描器java的設計與實現(xiàn)IPScan類的實現(xiàn)package scan.pratice;import .InetAddress;import .Socket;import .UnknownHostException;import java.util.ArrayList;import java.util.ListIterator;public class IPScan static long startTime=System.currentTimeMillis(); /獲取開始時間public static void main(String

2、 args) if(args.length !=2)System.out.println(參數(shù)不對);int startIP = Integer.parseInt(args0); /獲得起始IP，因為args是String類型，所以要強制轉(zhuǎn)換成int類型 int endIP = Integer.parseInt(args1); /獲得終止IP，同上 ArrayList result = new ArrayList();/ip地址掃描for(int id=startIP;id=endIP;id+)String addres= 10.28.23.;try Socket s=new Socket(a

3、ddres+id,8000); /建立連接 catch (UnknownHostException e ) catch(Exception e)/System.out.println(e.toString();if(e.toString().endsWith(.ConnectException: Connection timed out: connect)System.out.println(addres+id+:not exist.);elseSystem.out.println(addres+id+:exist.);ListIterator li = result.list

4、Iterator(); /獲得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，同時將指向下一個元素 long endTime=System.currentTimeMillis(); /獲取結(jié)束時間System.out.println(程序運行時間： +(endTime-startTime)+ms);PortScan類的實現(xiàn)package scan.pratice;import java.io.IOException;import jav

5、.InetAddress;import .Socket;import .UnknownHostException;import java.util.ArrayList;import java.util.ListIterator;public class PortScan static long startTime=System.currentTimeMillis(); /獲取開始時間public static void main(String args) if(args.length !=3)System.out.println(參數(shù)不對);Strin

6、g ip = args0; /獲得我們指定的服務器地址 int startPort = Integer.parseInt(args1); /獲得起始端口號，因為args是String類型，所以要強制轉(zhuǎn)換成int類型 int endPort = Integer.parseInt(args2); /獲得終止端口號，同上 if(startPort65535|endPort65535) /檢查端口是否在合法范圍165535 System.out.printf(端口范圍必須在165535以內(nèi)!); return; else if(startPortendPort) /比較起始端口和終止端口 System

7、.out.println(端口輸入有誤! 起始端口必須小于終止端口); return; InetAddress address;try address = InetAddress.getByName(ip); /轉(zhuǎn)換類型 catch(UnknownHostException e) System.out.println(無法找到 + ip); return; ArrayList result = new ArrayList();/端口掃描for(int nport=startPort;nport=endPort;nport+) String typeport=;switch( nport )/其

8、實這兒可以不用switch，直接用個hash表記錄就可以 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: ty

9、peport = (Terminal Service); break; case 443: typeport = (HTTPS); break; case 1521: typeport = (Oracle); break; /從起始端口到終止端口進行循環(huán) try /System.out.print(Scanning +nport); /打印掃描進度 System.out.println(ip + :+nport);Socket s=new Socket(address,nport); /建立連接 /關閉連接 if(s.isConnected()result.add(端口號：+nport+typ

10、eport+ open); s.close();/將打開的端口添加到ArrayList result里面 /System.out.println( : open); /打印狀態(tài) catch(IOException e)System.out.println(e.toString();/System.out.println(：close); /打印狀態(tài) result.add(端口號：+nport+typeport+ close); ListIterator li = result.listIterator(); /獲得ArrayList的ListIterator while(li.hasNext(

11、) /如果li里面有元素 System.out.println(li.next().toString(); /打印出指向的元素，同時將指向下一個元素 long endTime=System.currentTimeMillis(); /獲取結(jié)束時間System.out.println(程序運行時間： +(endTime-startTime)+ms);TCPConnect類的實現(xiàn)package scan.pratice;import java.io.IOException;import .InetAddress;import .Socket;import java.

12、net.UnknownHostException;import java.util.ArrayList;import java.util.ListIterator;public class TCPConnect static long startTime=System.currentTimeMillis(); /獲取開始時間public static void main(String args) if(args.length !=3)System.out.println(參數(shù)不對);String ip = args0; /獲得我們指定的服務器地址 int startPort = Integer

13、.parseInt(args1); /獲得起始端口號，因為args是String類型，所以要強制轉(zhuǎn)換成int類型 int endPort = Integer.parseInt(args2); /獲得終止端口號，同上 if(startPort65535|endPort65535) /檢查端口是否在合法范圍165535 System.out.printf(端口范圍必須在165535以內(nèi)!); return; else if(startPortendPort) /比較起始端口和終止端口 System.out.println(端口輸入有誤! 起始端口必須小于終止端口); return; InetAdd

14、ress address;try address = InetAddress.getByName(ip); /轉(zhuǎn)換類型 catch(UnknownHostException e) System.out.println(無法找到 + ip); return; ArrayList result = new ArrayList();/*/端口掃描for(int nport=startPort;nport=endPort;nport+) String typeport=;switch( nport )/其實這兒可以不用switch，直接用個hash表記錄就可以 case 21: typeport =

15、(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: typ

16、eport = (HTTPS); break; case 1521: typeport = (Oracle); break; /從起始端口到終止端口進行循環(huán) try /System.out.print(Scanning +nport); /打印掃描進度 System.out.println(ip + :+nport);Socket s=new Socket(address,nport); /建立連接 /關閉連接 if(s.isConnected()result.add(端口號：+nport+typeport+ open); s.close();/將打開的端口添加到ArrayList resul

17、t里面 /System.out.println( : open); /打印狀態(tài) catch(IOException e)System.out.println(e.toString();/System.out.println(：close); /打印狀態(tài) result.add(端口號：+nport+typeport+ close); */ip地址掃描for(int id=178;id183;id+)String addres= 10.28.23.;try Socket s=new Socket(addres+id,8000); /建立連接 catch (UnknownHostException e ) catch(Exception e)/System.out.println(e.toString();if(e.toString().endsWith(.ConnectException: Connection timed out: connect)System.out.println(addres+id+:not exist.);elseSystem.out.println