計算機網(wǎng)絡課程設計簡單聊天程序

1、黔南民族師范學院 計算機科學系計算機網(wǎng)絡課程設計報告課題名稱： 簡單聊天程序 姓 名： 學 號： 專業(yè)班級： 系 （院）： 計算機科學系 指導老師： 設計時間： 設計地點： 1、 實驗目的和要求1. 實驗目的 a。掌握網(wǎng)絡編程的知識和技能。 b。熟悉網(wǎng)絡軟件的開發(fā)過程，鍛煉解決實際問題的能力。2. 實驗要求a。支持多人聊天，聊天內(nèi)容可以僅僅支持文本信息。b?？蛻舳顺绦蚓哂袌D形化用戶界面。2、 實驗環(huán)境a。編程軟件：eclipseb。數(shù)據(jù)庫軟件：mysql5.0；c。工具：jdk6.0；d。硬件環(huán)境：win7系統(tǒng)，intel core2 duo3、 程序的邏輯框圖 4、 程序的源代碼login.

2、javapackage chat4;import java.awt.borderlayout;import java.awt.button;import java.awt.dimension;import java.awt.frame;import java.awt.label;import java.awt.panel;import java.awt.toolkit;import java.awt.event.mouseadapter;import java.awt.event.mouseevent;import java.awt.event.windowadapter;import jav

3、a.awt.event.windowevent;import java.sql.connection;import java.sql.drivermanager;import java.sql.resultset;import java.sql.statement;import javax.swing.joptionpane;import javax.swing.jpasswordfield;import javax.swing.jtextfield;public class login private string name;frame f;label l_name, l_password;

4、jtextfield jtf_name;jpasswordfield jpf_password;button bt_ok, bt_cancle, bt_regist;panel p_top, p_center, p_bottom;toolkit toolkit;dimension screensize, framesize;connection connection;statement statement;resultset resultset;public void initframe() /初始化窗體f = new frame(login);l_name = new label(名字);l

5、_password = new label(密碼);jtf_name = new jtextfield(20);jpf_password = new jpasswordfield(20);bt_ok = new button(登錄);bt_ok.addmouselistener(new mouseadapter() overridepublic void mouseclicked(mouseevent e) /判斷你輸入的用戶名和密碼是否正確/如果正確，就進入聊天界面if (verify(jtf_name.gettext().trim(), jpf_password.gettext().tri

6、m() f.setvisible(false);chatutil chatutil=new chatutil(); else /否則，彈出對話框joptionpane.showmessagedialog(f, 你的輸入有誤，請重新輸入！););bt_regist = new button(注冊);bt_regist.addmouselistener(new mouseadapter() /點擊之后進入注冊頁面overridepublic void mouseclicked(mouseevent e) f.setvisible(false);new regist(););bt_cancle =

7、new button(重置);bt_cancle.addmouselistener(new mouseadapter() /點擊重置，使用戶名框和密碼框為空overridepublic void mouseclicked(mouseevent e) reset(););p_top = new panel();p_top.add(l_name);p_top.add(jtf_name);p_center = new panel();p_center.add(l_password);p_center.add(jpf_password);p_bottom = new panel();p_bottom.

8、add(bt_ok);p_bottom.add(bt_regist);p_bottom.add(bt_cancle);f.add(p_top, borderlayout.north);f.add(p_center, borderlayout.center);f.add(p_bottom, borderlayout.south);f.pack();f.setresizable(false);/* * 以下 的為窗體位置 的布局，使窗體置于屏幕的正中間 */toolkit = toolkit.getdefaulttoolkit();screensize = toolkit.getscreensiz

9、e();framesize = f.getsize();int height = screensize.height - framesize.height;int width = screensize.width - framesize.width;f.setlocation(width / 2, height / 2);f.setvisible(true);f.addwindowlistener(new windowadapter() /點擊窗體右上角的“x”時，退出應用程序overridepublic void windowclosing(windowevent e) system.exi

10、t(0););public login() initframe();public static void main(string args) new login();public void reset() /設置用戶名文本框和密碼文本框為空jtf_name.settext();jpf_password.settext();public boolean verify(string name, string password) /驗證用戶的用戶名和密碼try class.forname(com.mysql.jdbc.driver);connection = drivermanager.getcon

11、nection(jdbc:mysql:/:3306/chat, root, 19890815);statement = connection.createstatement();resultset = statement.executequery(select * from usertable where name= + name+ and password= + password + and state=+ n);if (resultset.next() return true; else return false; catch (exception e) e.prints

12、tacktrace();return false;public void setname(string name) = name;public string getname() return name;regist.javaimport java.awt.borderlayout;import java.awt.button;import java.awt.dimension;import java.awt.frame;import java.awt.label;import java.awt.panel;import java.awt.textfield;import j

13、ava.awt.toolkit;import java.awt.event.mouseadapter;import java.awt.event.mouseevent;import java.awt.event.windowadapter;import java.awt.event.windowevent;import java.sql.connection;import java.sql.drivermanager;import java.sql.resultset;import java.sql.sqlexception;import java.sql.statement;import j

14、avax.swing.joptionpane;public class regist frame f;label l_name, l_password, l_passwordagain;textfield tf_name, tf_password, tf_passwordagain;button bt_ok, bt_cancle;panel p_name, p_password, p_passwordagain, p_bt, p_top;toolkit toolkit;dimension screensize, framesize;public void init() /初始化窗體f = ne

15、w frame(regist);l_name = new label(輸入名字：);l_password = new label(輸入密碼：);l_passwordagain = new label(確認密碼：);tf_name = new textfield(20);tf_password = new textfield(20);tf_passwordagain = new textfield(20);bt_ok = new button(注冊);bt_ok.addmouselistener(new mouseadapter() overridepublic void mouseclicke

16、d(mouseevent e) if (tf_password.gettext().trim().equals(/判斷密碼框和確認密碼框 的密碼是否一樣tf_passwordagain.gettext().trim() /一致時if (regist() /進行注冊成功f.setvisible(false);/隱藏注冊頁面new login().f.setvisible(true);/顯示登錄頁面 else /密碼框和確認密碼框 的密碼不一致時，彈出對話框joptionpane.showmessagedialog(f, 兩次密碼輸入有誤，請重試！););bt_cancle = new butto

17、n(取消);bt_cancle.addmouselistener(new mouseadapter() /點擊取消按鈕時overridepublic void mouseclicked(mouseevent e) close();/隱藏注冊窗體new login().f.setvisible(true);/顯示登錄窗體);p_name = new panel();p_name.add(l_name);p_name.add(tf_name);p_password = new panel();p_password.add(l_password);p_password.add(tf_password

18、);p_passwordagain = new panel();p_passwordagain.add(l_passwordagain);p_passwordagain.add(tf_passwordagain);p_top = new panel();p_top.setlayout(new borderlayout();p_top.add(p_name, borderlayout.north);p_top.add(p_password, borderlayout.center);p_top.add(p_passwordagain, borderlayout.south);p_bt = new

19、 panel();p_bt.add(bt_ok);p_bt.add(bt_cancle);f.add(p_top, borderlayout.north);f.add(p_bt, borderlayout.south);/* *以下為使窗體位于屏幕的中間 */toolkit = toolkit.getdefaulttoolkit();screensize = toolkit.getscreensize();int heightscreen = screensize.height;int widthscreen = screensize.width;f.pack();framesize = f.

20、getsize();int heightframe = framesize.height;int widthframe = framesize.width;f.setlocation(widthscreen - widthframe) / 2,(heightscreen - heightframe) / 2);f.setresizable(false);f.setvisible(true);f.addwindowlistener(new windowadapter() /點擊右上角的“x”時，隱藏注冊窗體overridepublic void windowclosing(windowevent

21、 e) close(););public void close() /隱藏注冊窗體f.setvisible(false);public boolean regist() /寫數(shù)據(jù)的操作string name = tf_name.gettext().trim();string password = tf_password.gettext().trim();connection connection = null;statement statement = null;resultset resultset = null;try class.forname(com.mysql.jdbc.driver

22、);connection = drivermanager.getconnection(jdbc:mysql:/:3306/chat, root, 19890815);statement = connection.createstatement();/查旭該用戶是否存在resultset = statement.executequery(select * from usertable where name= + name+ );if (resultset.next() /存在時，彈出相應的對話框joptionpane.showmessagedialog(f, name + 已經(jīng)

23、存在); else /不出在且不為空時寫入數(shù)據(jù)庫if (!.equals(name) & !.equals(password) int i = statement.executeupdate(insert into usertable(name,password) values(+ name + , + password + );if (i 0) joptionpane.showmessagedialog(f, 注冊成功！);return true; else joptionpane.showmessagedialog(f, 注冊失??！); else /用戶名或密碼為空時，彈出提示對話框jop

24、tionpane.showmessagedialog(f, 用戶名或密碼不能為空); catch (exception e) e.printstacktrace(); finally try resultset.close();statement.close();connection.close(); catch (sqlexception e) e.printstacktrace();return false;public regist() init();chatutil.javaimport java.awt.borderlayout;import java.awt.button;impo

25、rt java.awt.desktop;import java.awt.dimension;import java.awt.frame;import java.awt.label;import java.awt.panel;import java.awt.textarea;import java.awt.textfield;import java.awt.toolkit;import java.awt.event.actionevent;import java.awt.event.actionlistener;import java.awt.event.mouseadapter;import

26、java.awt.event.mouseevent;import java.awt.event.windowadapter;import java.awt.event.windowevent;import java.io.bufferedreader;import java.io.file;import java.io.ioexception;import java.io.inputstreamreader;import java.io.printwriter;import .socket;import .unknownhostexception;import java.text.simple

27、dateformat;import java.util.calendar;import java.util.date;public class chatutil frame f;label l_ip,l_name;textfield tf_ip;textfield tf_name;textfield tf_send;button bt_record,bt_exit,bt_send;textarea ta_msg;panel p_ip,p_name,p_bt,p_top,p_center,p_bottom;toolkit toolkit;dimension screensize,framesiz

28、e;bufferedreader br; printwriter pw; public void initutil()/初始化窗體f=new frame(chat);l_ip=new label(請輸入服務器的ip:);l_name=new label(請輸入你的名字：);tf_ip=new textfield(15);tf_ip.settext();tf_ip.seteditable(false);tf_name=new textfield(15);tf_send=new textfield(50);tf_send.addactionlistener(new actionl

29、istener()/當在按“enter”鍵時，發(fā)送信息overridepublic void actionperformed(actionevent e) send(););bt_record=new button(歷史記錄);bt_record.addmouselistener(new mouseadapter()/查看歷史記錄overridepublic void mouseclicked(mouseevent e) browse(););bt_exit=new button(退出);bt_exit.addmouselistener(new mouseadapter()/點擊退出按鈕時，退

30、出程序overridepublic void mouseclicked(mouseevent e) exit(););bt_send=new button(發(fā)送);bt_send.addmouselistener(new mouseadapter()/點擊發(fā)送按鈕時，發(fā)送信息overridepublic void mouseclicked(mouseevent e) send(););ta_msg=new textarea();ta_msg.seteditable(false);/聊天信息的顯示區(qū)p_ip=new panel();p_ip.add(l_ip);p_ip.add(tf_ip);p

31、_name=new panel();p_name.add(l_name);p_name.add(tf_name);p_bt=new panel();p_bt.add(bt_record);p_bt.add(bt_exit);p_top=new panel();p_top.setlayout(new borderlayout();p_top.add(p_ip,borderlayout.north);p_top.add(p_name,borderlayout.center);p_top.add(p_bt,borderlayout.south);p_center=new panel();p_cent

32、er.add(ta_msg);p_bottom=new panel();p_bottom.add(tf_send);p_bottom.add(bt_send);f.add(p_top,borderlayout.north);f.add(p_center,borderlayout.center);f.add(p_bottom,borderlayout.south);f.pack();f.setresizable(false);/* * 以下是使窗體置于屏幕的中間 */toolkit=toolkit.getdefaulttoolkit();screensize=toolkit.getscreens

33、ize();framesize=f.getsize();int height=screensize.height-framesize.height;int width=screensize.width-framesize.width;f.setlocation(width/2,height/2);f.setvisible(true);f.addwindowlistener(new windowadapter()/點擊右上角的“x”時，退出程序overridepublic void windowclosing(windowevent e) exit();); private void initn

34、et()/初始網(wǎng)絡的鏈接 try socket s = new socket(,8186);/以本機作為服務器進行鏈接 pw = new printwriter(s.getoutputstream(); br = new bufferedreader(new inputstreamreader(s.getinputstream(); catch (unknownhostexception e) e.printstacktrace(); catch (ioexception e) e.printstacktrace(); private void send()/把聊天信息發(fā)送出

35、去string name=tf_name.gettext();string text=tf_send.gettext();string time=gettime();/獲取當前的時間tf_send.settext(); pw.println(name+ +time+:+text); pw.flush();private void exit()/窗體退出system.exit(0);private string gettime()/獲取當前的 時間calendar calendar=calendar.getinstance();date date=calendar.gettime();simpl

36、edateformat sdf=new simpledateformat(yyyy-mm-dd hh:mm:ss);/設置日期的格式return sdf.format(date);private void browse()/打開歷史記錄desktop desktop=desktop.getdesktop();file file=new file(temp.txt);try desktop.edit(file); catch (ioexception e) e.printstacktrace(); public void receive()/獲取服務器發(fā)來的聊天信息 try while(true

37、) string str = br.readline(); if(str=null) return ; ta_msg.append(str+n); catch (ioexception e) e.printstacktrace(); chatutil() this.initutil(); this.initnet(); public static void main(string args) chatutil c = new chatutil(); c.receive(); server.javaimport .*;import java.io.*;import java.util.*;pub

38、lic class server public static void main(string args) final int port = 8186;try system.out.println(wait.);serversocket ss = new serversocket(port);/監(jiān)聽8186端口arraylist sockets = new arraylist();/用來存儲連接當服務器的客戶端的socketwhile (true) socket s = ss.accept();/客戶端和服務器端建立連接system.out.println(connected.);sockets.add(s);thread t1