端口扫描程序的设计与实现

1、网络综合实验任 务 书一、 目的与要求1 性质：设计性实验。2 任务：设计并实现一个端口扫描程序，检测某个ip或某段ip的计算机的端口工作情况。3 目的：加深对课堂讲授知识的理解，熟练掌握基本的网络编程技术和方法，建立网络编程整体概念，使得学生初步具有研究、设计、编制和调试网络程序的能力。4 要求：熟悉有关定义、概念和实现算法，设计出程序流程框图和数据结构，编写出完整的源程序，基本功能完善，方便易用，操作无误。5 学生要求人数：1人。二、 主要内容1 编写一个端口扫描程序，能够显示某个ip或某段ip的计算机的某一个或某些端口是否正在工作。基本工作过程如下：(1) 设定好一定的端口扫描范围；(2

2、) 设定每个端口扫描的次数，因为有可能有的端口一次扫描可能不通；(3) 创建socket，通过socket的connect方法来连接远程ip地址以及对应的端口；(4) 如果返回false，表示端口没有开放，否则端口开放。三、 进度计划序号设计内容完成时间备注1任务布置及资料收集第1周周一、周二2软件方案设计与制定第1周周三至周四3编程实现第1周周周五至第2周周二4程序测试与修改，撰写报告第2周周三至周五上午5报告提交，软件验收周五下午四、设计成果要求1 完成规定的实验任务，保质保量；2 完成综合实验报告，要求格式规范，内容具体而翔实，应体现自身所做的工作，注重对实验思路的归纳和对问题解决过程的

3、总结。五、 考核方式1 平时成绩验收答辩实验报告；2 五级分制。 学生姓名： 指导教师： 2009 年 6月8 日一、综合实验的目的与要求1目的：加深对课堂讲授知识的理解，熟练掌握基本的网络编程技术和方法，建立网络编程整体概念，加深对java编程语言的使用，促进编程能力的提高，同时为网络编程打下一个比较好的基础。同时对实验的过程要有完全的了解。2. 要求：熟悉有关定义、概念和实现算法，设计出程序流程框图和数据结构，编写出完整的源程序，基本功能完善，方便易用，操作无误。二、综合实验正文1编程语言的选择针对编写的是端口扫描的程序，所以我选择了java编程，因为要简单而方便的试验端口扫描的功能。2端

4、口扫描实现的功能是：显示某个ip或某段ip的计算机的某一个或某些端口是否正在工作21 如何选择ip段和端口创建socket，通过socket的connect方法来连接远程ip地址以及对应的端口。而我使用的是socket函数来实现端口的扫描和ip地址的选择扫描。22 如何实现快速扫描端口通过实现多线程，当一个ip或者一个端口同时分配多个线程进行扫描，速度会比单线程扫描快许多。23 显示扫描结果可以在使用java编写的时候，可以通过使用jscrollpane控件实现显示结果。24 实现要求功能之余美化外观3创建应用程序界面31 建立主窗体 ，“java端口扫描器”图1-132 ip地址的输入部分图

5、1-2 33 端口部分，其中包括指定的端口和指定扫描的端口范围图1-334 多线程的实现和延时的控制部分图1-435 增加的保存及快捷键功能图1-5 4扫描的整个过程41 填写ip地址 002042 填写端口扫描的范围为130043 线程数选择为10044 扫描结果如下图1-6 5端口扫描的主要部分程序如下import .*;import java.io.*;import java.awt.*;import java.awt.event.*;import javax.swing.*;/* *实现扫描的主体程序 */public class threa

6、dscanpublic static jframe main=new jframe("java端口扫描器");/显示扫描结果public static jtextarea result=new jtextarea("",4,40);/滚动条面板 public static jscroll paneresultpane = newjscrollpane(result,jscrollpane.vertical_scrollbar_as_needed, jscrollpane.horizontal_scrollbar_as_needed;/输入主机名文本框pu

7、blic static jtextfield hostname=new jtextfield("localhost",8);/输入ip地址前3位的输入框public static jtextfield fromip1=new jtextfield("0",3);/输入ip地址46位的输入框public static jtextfield fromip2=new jtextfield("0",3);/输入ip地址79位的输入框public static jtextfield fromip3=new jtextfield("0&

8、quot;,3);/输入起始ip地址最后4位的输入框public static jtextfield fromip4=new jtextfield("0",3);/输入目标ip地址最后4位的输入框public static jtextfield toip=new jtextfield("0",3);/输入最小端口的输入框public static jtextfield minport=new jtextfield("0",4);/输入最大端口的输入框public static jtextfield maxport=new jtextf

9、ield("1000",4);/输入最大线程数量的输入框public static jtextfield maxthread=new jtextfield("100",3);/错误提示框public static jdialog dlgerror=new jdialog(main,"错误!");public static jlabel dlginfo=new jlabel("");public static jlabel type=new jlabel("请选择：");/扫描类型public s

10、tatic jradiobutton radioip = new jradiobutton("ip地址：");public static jradiobutton radiohost = new jradiobutton("主机名：",true);/单选框组public static buttongroup group = new buttongroup();public static jlabel p1=new jlabel("端口范围:");public static jlabel p2=new jlabel("&quo

11、t;);public static jlabel p3=new jlabel("");public static jlabel pdot1 = new jlabel(".");public static jlabel pdot2 = new jlabel(".");public static jlabel pdot3 = new jlabel(".");public static jlabel tnum=new jlabel("线程数:");public static jlabel rst=ne

12、w jlabel("扫描结果: ");public static jlabel con=new jlabel(" ");/定义按钮public static jbutton ok = new jbutton("确定");public static jbutton submit = new jbutton("开始扫描");public static jbutton cancel = new jbutton("退出");public static jbutton savebutton = new j

13、button("保存扫描结果");/菜单栏public static jmenubar mybar = new jmenubar();public static jmenu mymenu = new jmenu("文件(f)");public static jmenuitem saveitem = new jmenuitem("保存扫描结果(s)");public static jmenuitem exititem = new jmenuitem("退出(q)");public static void main(s

14、tring args)main.setsize(500,400);main.setlocation(300,300);main.setresizable(false);main.setlayout(new gridbaglayout();main.setdefaultcloseoperation(jframe.exit_on_close);dlgerror.setsize(300,100);dlgerror.setlocation(400,400);/添加“菜单栏”mymenu.add(saveitem);mymenu.add(exititem);mybar.add(mymenu);main.

15、setjmenubar(mybar);/设置热键mymenu.setmnemonic('f'); saveitem.setmnemonic ('s'); /为“另存为”组件设置快捷键为ctrl+s saveitem.setaccelerator(keystroke.getkeystroke(keyevent.vk_s,inputevent.ctrl_mask); exititem.setmnemonic('q'); exititem.setaccelerator(keystroke.getkeystroke(keyevent.vk_e,input

16、event.ctrl_mask); /采用表格包型布局container mpanel = main.getcontentpane();gridbagconstraints c = new gridbagconstraints();c.insets = new insets(10,0,0,10);c.gridx = 0;c.gridy = 0;c.gridwidth = 10;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(type,c);group.add(radioip);gr

17、oup.add(radiohost);c.gridx = 0;c.gridy = 1;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(radioip,c);c.gridx = 1;c.gridy = 1;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(fromip1,c);c.gridx = 2;c.gri

18、dy = 1;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(pdot1,c);c.gridx = 3;c.gridy = 1;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(fromip2,c);c.gridx = 4;c.gridy = 1;c.gridwidth = 1;c.fill = gridba

19、gconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(pdot2,c);c.gridx = 5;c.gridy = 1;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(fromip3,c);c.gridx = 6;c.gridy = 1;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagco

20、nstraints.center;mpanel.add(pdot3,c);c.gridx = 7;c.gridy = 1;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(fromip4,c);c.gridx = 8;c.gridy = 1;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(p2,c);c.gr

21、idx = 9;c.gridy = 1;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(toip,c);c.gridx = 0;c.gridy = 2;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(radiohost,c);c.gridx = 1;c.gridy = 2;c.gridwidth = 3;c

22、.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(hostname,c);c.gridx = 0;c.gridy = 3;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(p1,c);c.gridx = 1;c.gridy = 3;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor

23、 = gridbagconstraints.center;mpanel.add(minport,c);c.gridx = 2;c.gridy = 3;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(p3,c);c.gridx = 3;c.gridy = 3;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(m

24、axport,c);c.gridx = 0;c.gridy = 4;c.gridwidth = 1;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(tnum,c);c.gridx = 1;c.gridy = 4;c.gridwidth = 3;c.fill = gridbagconstraints.both;c.anchor = gridbagconstraints.center;mpanel.add(maxthread,c);c.gridx = 0;c.gridy = 5;c.g

25、ridwidth = 3;c.fill = gridbagconstraints.vertical;c.anchor = gridbagconstraints.center;mpanel.add(submit,c);c.gridx = 6;c.gridy = 5;c.gridwidth = 4;c.fill = gridbagconstraints.vertical;c.anchor = gridbagconstraints.center;mpanel.add(cancel,c);c.gridx = 0;c.gridy = 6;c.gridwidth = 10;c.fill = gridbag

26、constraints.both;c.anchor = gridbagconstraints.center;mpanel.add(rst,c);/设置文本区域可以换行result.setlinewrap(true);/设置文本区域不可编辑result.seteditable(false);c.gridx = 0;c.gridy = 7;c.gridwidth = 10;c.gridheight = 4;c.fill = gridbagconstraints.vertical;c.anchor = gridbagconstraints.center;mpanel.add(resultpane,c

27、);container dpanel = dlgerror.getcontentpane();dpanel.setlayout(new flowlayout(flowlayout.center);dpanel.add(dlginfo);dpanel.add(ok);submit.addactionlistener(new submitaction();cancel.addactionlistener(new cancleaction();ok.addactionlistener(new okaction();/实现退出功能exititem.addactionlistener(new java.

28、awt.event.actionlistener() public void actionperformed(java.awt.event.actionevent e) system.exit(0););/实现帮助功能savebutton.addactionlistener(new java.awt.event.actionlistener() public void actionperformed(java.awt.event.actionevent e) jfilechooser fc=new jfilechooser();int returnval=fc.showsavedialog(n

29、ull);/点击“保存”if(returnval = 0)file savefile=fc.getselectedfile();try filewriter writeout = new filewriter(savefile);writeout.write(threadscan.result.gettext();writeout.close();catch (ioexception ex) system.out.println("保存失败");/点击“取消”elsereturn;);main.setvisible(true);/* *实现“取消”功能 *退出程序 */cl

30、ass cancleaction implements actionlistenerpublic void actionperformed (actionevent e)system.exit(0);/* *实现“确定”功能 *完成扫描 */class submitaction implements actionlistenerpublic void actionperformed (actionevent a)int minport;int maxport;int maxthread;int ip1 = 0;int ip2 = 0;int ip3 = 0;int ipstart = 0;in

31、t ipend = 0;string ipaddress = ""string hostname = ""threadscan.result.settext("");/将"确定"按钮设置成为不可用if(threadscan.submit.isenabled()threadscan.submit.setenabled(false);/* *判断搜索的类型 *按照ip地址扫描：type = 0 *按照主机名称扫描：type = 1 */if(threadscan.radioip.isselected()tcpthrea

32、d.type = 0;/判断ip的前3位是否为int型tryip1=integer.parseint(threadscan.fromip1.gettext();catch(numberformatexception e)threadscan.dlginfo.settext("错误的ip!");threadscan.dlgerror.setvisible(true);return;/判断ip的46位是否为int型tryip2=integer.parseint(threadscan.fromip2.gettext();catch(numberformatexception e)

33、threadscan.dlginfo.settext("错误的ip!");threadscan.dlgerror.setvisible(true);return;/判断ip的79位是否为int型tryip3=integer.parseint(threadscan.fromip3.gettext();catch(numberformatexception e)threadscan.dlginfo.settext("错误的ip!");threadscan.dlgerror.setvisible(true);return;/判断起始ip的最后4位是否为int型

34、tryipstart=integer.parseint(threadscan.fromip4.gettext();catch(numberformatexception e)threadscan.dlginfo.settext("错误的ip!");threadscan.dlgerror.setvisible(true);return;/判断目标ip的最后4位是否为int型tryipend=integer.parseint(threadscan.toip.gettext();catch(numberformatexception e)threadscan.dlginfo.se

35、ttext("错误的目标ip!");threadscan.dlgerror.setvisible(true);return;/判断起始ip是否正确/判断条件：大于0且小于等于255if(ip1<0 | ip1>255|ip2<0 | ip2>255|ip3<0 | ip3>255|ipstart<0 | ipstart>255)threadscan.dlginfo.settext(" ip地址为0-255的整数! ");threadscan.dlgerror.setvisible(true);return;

36、elsetcpthread.ip1 = ip1;tcpthread.ip2 = ip2;tcpthread.ip3 = ip3;tcpthread.ipstart = ipstart;/判断目标ip是否正确/判断条件：大于0且小于等于255if(ipend<0 | ipend>255)threadscan.dlginfo.settext("目标ip地址为0-255的整数! ");threadscan.dlgerror.setvisible(true);return;elsetcpthread.ipend = ipend;ipaddress = "&qu

37、ot; + ip1 + ip2 + ip3 + ipstart;/* *判断ip地址的有效性 */trytcpthread.hostaddress=inetaddress.getbyname(ipaddress);catch(unknownhostexception e)threadscan.dlginfo.settext(" 错误的ip或地址不可达! ");threadscan.dlgerror.setvisible(true);return;/根据主机名进行端口扫描if(threadscan.radiohost.isselected()tcpthread.type =

38、1;/* *判断主机名称的有效性 */trytcpthread.hostaddress=inetaddress.getbyname(threadscan.hostname.gettext();catch(unknownhostexception e)threadscan.dlginfo.settext("错误的域名或地址不可达! ");threadscan.dlgerror.setvisible(true);return;/* *判断端口号的有效性 */tryminport=integer.parseint(threadscan.minport.gettext();maxp

39、ort=integer.parseint(threadscan.maxport.gettext();maxthread=integer.parseint(threadscan.maxthread.gettext();catch(numberformatexception e)threadscan.dlginfo.settext("错误的端口号或线程数!端口号和线程数必须为整数!");threadscan.dlgerror.setvisible(true);return;/* *判断最小端口号的有效范围 *判断条件：大于0且小于65535，最大端口应大于最小端口 */if(m

40、inport<0 | minport>65535 | minport>maxport)threadscan.dlginfo.settext("最小端口必须是0-65535并且小于最大端口的整数!");threadscan.dlgerror.setvisible(true);return;elsetcpthread.min_port=minport;/* *判断最大端口号的有效范围 *判断条件：大于0且小于65535，最大端口应大于最小端口 */if(maxport<0 | maxport>65535 | maxport<minport)t

41、hreadscan.dlginfo.settext("最大端口必须是0-65535并且大于最小端口的整数!");threadscan.dlgerror.setvisible(true);return;elsetcpthread.max_port=maxport;/* *判断线程数量的有效范围 *判断条件：大于1且小于200 */if(maxthread<1 | maxthread>200)threadscan.dlginfo.settext("线程数为1-200的整数! ");threadscan.dlgerror.setvisible(tr

42、ue);return;threadscan.result.append("线程数 "+threadscan.maxthread.gettext()+"n");/启动线程for(int i=0;i<maxthread;i+)new tcpthread("t" + i,i).start();/* *实现错误提示框中的“确定”按钮功能 */class okaction implements actionlistenerpublic void actionperformed (actionevent e)threadscan.dlger

43、ror.dispose();多线程类文件：import .*;import java.io.*;import java.awt.*;import java.awt.event.*;import javax.swing.*;public class tcpthread extends threadpublic static inetaddress hostaddress;/最小的端口号public static int min_port;/最大的端口号public static int max_port;/线程总数private int threadnum; /查询方式：0为ip；1为主机名pu

44、blic static int type;/ip地址前3位public static int ip1;/ip地址46位public static int ip2;/ip地址79位public static int ip3;/起始ip地址的最后4位public static int ipstart;/结束ip地址的最后4位public static int ipend;/完整的ip地址public static string ipall;/扫描的主机名称或ipstring hostname = ""/端口的类别string porttype = "0"/*

45、 *构造函数 */public tcpthread(string name,int threadnum)super(name); this.threadnum = threadnum; /* *运行函数 */public void run() /ip地址int h = 0;/端口号int i = 0;socket thetcpsocket;/根据ip地址进行扫描if(type = 0)/ip地址循环扫描for(h = ipstart; h <=ipend; h+)/组成完整的ip地址ipall = "" + ip1 + "." + ip2 + &q

46、uot;." + ip3 + "." + h;hostname = ipall;try/在给定主机名的情况下确定主机的 ip 地址hostaddress=inetaddress.getbyname(ipall);catch(unknownhostexception e)/不同的端口循环扫描for (i = min_port+threadnum; i < max_port + integer.parseint(threadscan.maxthread.gettext(); i += integer.parseint(threadscan.maxthread.g

47、ettext()trythetcpsocket=new socket(hostaddress,i);thetcpsocket.close();threadscan.result.append(hostname+":"+i);/判断端口的类别switch(i)case 21:porttype = "(ftp)"break;case 23:porttype = "(telnet)"break;case 25:porttype = "(smtp)"break; case 80:porttype = "(http

48、)"break;case 110:porttype = "(pop)"break;case 139:porttype = "(netbios)"break;case 1433:porttype = "(sql server)"break;case 3389:porttype = "(terminal service)"break;case 443:porttype = "(https)"break;case 1521:porttype = "(oracle)"break;/端口没有特定类别if(porttype.equals("0")threadscan.result.append("n");elsethreadscan.result.append(":"