计算机网络实验代码

1、package we;*获取mac地址，并以16进制输出*/import .networklnterface;import .socketexception;import java.util.enumeration;public class getmac public static string hexbyte(byte b)string s 二"000000" + integer.tohexstring(b);return s.substring(sength()2);public static string getmac()enumeration<networki

2、nterface> el;string mac_s = ,r;tryel = networklnterface.getnetworklnterfaceso; while(el.hasmoreelements() byte mac = elnextelement().gethardwareaddress(); if(mac = null)continue;mac_s = hexbyte(mac0) + hexbyte(macl) +hexbyte(mac2)+"-"+hexbyte(mac 3)+"-" +hexbyte(mac4)+"-&

3、#39;,+hexbyte(mac 5);system.out.println(mac_s + h mac 地址”);catch(socketexception ell)el 1 .printstacktrace();return mac_s;public static void main(string args) getmac m = new getmac(); m.getmac();imconsorr必aterminafed v getmac【java app-ication】 d<avajdkl8oio5xbinjavawexe (201412ad15ed71-r6r6o5o)ma

4、c"”sioioioioi®mqicwhmampackage we;import java.awt.borderlayout;import java.awt.dimension;import java.awt.toolkit;import java.awt.event.actionevent;import java.awt.event.actionlistener;import java.io.bufferedreader;import java.io.loexception;import java.io.inputstreamreader;import java.io.p

5、rintwriter;import .socket;import .unknownhostexception;import javax.swing.jbutton;import javax.swing. jframe;import javax.swing.jpanel;import javax.swing.jscrollpane;import javax.swing.jsplitpane;import javax.swing.jtextarea;public class socketclient public static int port = 8080;private printwriter

6、 pw;private jframe frame;private jpanel pane_buttom;private jsplitpane pane_center;显示内容的文本框，输入内容的文本框,发送内容按钮private jscrollpane pane_showwindow;private jscrollpane pane_inpu(window;private jtextarea area_showwindow;private jtextarea area_inputwindow;private jbutton btn_send;private dimension dimensio

7、n;/用于设置 area_showwindow 可拖拉的大小public socketclient()frame = new jframe();pane_buttom = new jpanel();pane_showwindow = new jscrollpane();paneputwindow = new jscrollpane();area_showwindow = new jtextarea(); area_inputwindow = new jtextarea();pane_center = newjsplitpane(jsplitpane.vertlcal_split,false,p

8、ane_showwindow,pane_inputwindow); btn_send = new jbutton("发送”)；dimension = new dimension©。，300);调用方法显示窗口public void showframe()initframe();initchattextarea();initbutton();btn_send();socket();)public void initframe()frame.settitlec'客户端/s”)；int width = (int)toolkit.getdefaulttoolkit().ge

9、tscreensize().getwidth();int height = (int)toolkit.getdefaulttoolkit().getscreensize().getheight(); frame.setbounds(width / 2, height / 2, 400, 450);frame.setvisible(true);/内容显示文本框和输入内容文本框public void initchattextarea()获取视图焦点 pane_showwindow.getviewport().add(area_showwindow); pane_inputwindow.getvie

10、wport().add(area_inputwindow);将显示文本域设置为不可编辑area_showwindow.seteditable(false);设置显示文本域可拖拉的大小 pane_showwindow.setminimumsize(dimension); frame.add(pane_center, borderlayout.center);public void initbutton()pane_buttom.add(btn_send);frame.add(pane_buttom, borderlayout.south);private void btn_send()btn_s

11、end.addactionlistener(new actionlistener() public void actionperformed(actionevent e) string info = area_inputwindow.gettext(); area_showwindow.append(u 客户端:u+info+"rn"); pw.println(info);area_inputwindow.settext(hu);)；private void socket() try socket s = new socket(h 127.0.0.import); 获取服务

12、器的信息inputstreamreader isr=new inputstreamreader(s.getinputstream(); bufferedreader br=new bufferedreader(isr);向服务器返回信息pw=new printwriter(s.getoutputstream()5true); while(true)不停地读取从服务器端发来的信息string info=br.readline(); area_showwindow.append("服务端:n+mfo+"rnn); catch (unknownhostexception e) /

13、 todo auto-generated catch block e.printstacktrace(); catch (ioexception e) / todo auto-generated catch blocke.printstacktrace();public static void main(string args) socketclient client = new socketclient(); client.showframe();package we;import java.awt.borderlayout;import java.awt.dimension;import

14、java.awt.toolkit;import java.awt.event.actionevent; import java.awt.event.actionlistener; import java.io.bufferedreader;import java.io.ioexception;import java.ioputstreamreader;import java.io.printwriter;import .serversocket;import .socket;import javax.swing.jbutton;import javax.swing.jframe;import

15、javax.swing. jpanel; import javax.swing-jscrolipane;import javax.swing.jsplitpa ne; import javax.swing.jtextarea;public class socketserver public static int port = 8080;服务器端口为 8080private printwriter pw;private jframe frame;private jpanel pane_buttom;private jsplitpane pane_center;显示信息的组件private jsc

16、rollpane pane_showwindow;滚动容器显示信息的容器private jscrollpane panenputwindow;private jtextarea area_showwindow;private jtextarea area_inputwindow;private jbutton btn_send;发送 buttonprivate dimension dimension;/用于设置 area_showwindow 可拖拉的人小初始化图形界面public socketserver()frame = new jframe();pane_buttom = new jpa

17、nel();pane_showwindow = new jscrollpane();pane_inputwindow = new jscrollpane(); area_showwindow = new jtextarea(); area_inputwindow = new jtextarea();/放入输入框和显示框pane_center = new jsplitpane(jsplitpane.vertical_split, false, pane_showwindov, pane_inputwindow);btn_send = new jbutton("发送”)；dimensio

18、n = new dimension(50, 300);调用方法显示窗口public void showframe()initframe();initchattextarea();initbutton(); btn_send();socket();/主窗体public void initframe()frame.settitle("服务端/s");int width = (int)toolkit.getdefaulttoolkit().getscreensize().getwidth(); int height = (int)toolkit.getdefaulttoolkit

19、().getscreensize().getheight(); frame.setbounds(width / 2, height / 2, 400, 450);frame.setvisible(true);/内容显示文本框和输入内容文本框private void initchattextarea() 取得视图焦点 pane_showwindow.getviewport().add(area_showwindow); pane_inputwindow.getviewport().add(area_inputwindow);将显示文本域设置为不可编辑 area_showwindow.setedi

20、table(false);设置显示文本域可拖拉的大小 pane_showwindow.setminimumsize(dimension); frame.add(pane_center, borderlayout.center);发送文件，发送内容按钮public void initbutton() pane_buttom.add(btn_send); frame.add(pane_buttom, borderlayout.south);private void btn_send()btn_send.addactionlistener(new actionuslepublic void actionperformed(actionevent e) string info = area_inputwindow.gettext(); area_showwin