1、Java課程設計(qq聊天程序)MiniQQtian_jJava課程設計(qq聊天程序)Using Java設計文檔可視化多方通信好友維護聊天記錄開發文檔、總結報告Java課程設計(qq聊天程序)Java課程設計(qq聊天程序)登錄窗口注冊窗口好友列表聊天窗口查找/添加好友聊天記錄對話框(登錄失敗、注冊成功、注冊失敗 確認刪除、錯誤提示等)Java課程設計(qq聊天程序)登錄窗口注冊Java課程設計(qq聊天程序)查找好友好友列表查找結果Java課程設計(qq聊天程序)聊天窗口Java課程設計(qq聊天程序)聊天記錄Java課程設計(qq聊天程序)PackagesServer登錄驗證注冊服務好

2、友維護聊天組維護在線用戶維護消息轉發異常處理. .Client各個窗口好友維護聊天記錄維護活動窗口維護異常處理. .Java課程設計(qq聊天程序)Multi-ThreadSocket-ServerSocketI/O StreamJDBC (Files R/W)Java課程設計(qq聊天程序)創建Thread的子類，并覆蓋run()方法實現Runnable接口Java課程設計(qq聊天程序)public class ChatServer ArrayList clients = new ArrayList();public static void main(String args) new Ch

3、atServer().begin();public void begin() ss = new ServerSocket(8888);Socket s = ss.accept();Client c = new Client(s);new Thread(c).start();clients.add(c); class Client implements Runnable /ChatServer內部類內部類private Socket s;private DataInputStream dis = null;private DataOutputStream dos = null;public Cl

4、ient(Socket s) this.s = s; dis = new DataInputStream(s.getInputStream(); dos = new DataOutputStream(s.getOutputStream(); public void send(String str) dos.writeUTF(str); public void run() String str = dis.readUTF();for(int i=0; i SHOW DATABASES; 2:創建一個數據庫MYSQLDATA mysql CREATE DATABASE MYSQLDATA; 3:選

5、擇你所創建的數據庫 mysql USE MYSQLDATA; (按回車鍵出現Database changed 時說明操作成功！)4:查看現在的數據庫中存在什么表 mysql SHOW TABLES;5:創建一個數據庫表 mysql CREATE TABLE MYTABLE (name VARCHAR(20), sex CHAR(1);6:顯示表的結構： mysql DESCRIBE MYTABLE; Java課程設計(qq聊天程序)7:往表中加入記錄 mysql insert into MYTABLE values (hyq,M); 8:用文本方式將數據裝入數據庫表中（例如D:/mysql.t

6、xt） mysql LOAD DATA LOCAL INFILE D:/mysql.txt INTO TABLE MYTABLE;9:導入.sql文件命令（例如D:/mysql.sql） mysqluse database; mysqlsource d:/mysql.sql; 10:刪除表 mysqldrop TABLE MYTABLE; 11:清空表 mysqldelete from MYTABLE;12:更新表中數據 mysqlupdate MYTABLE set sex=f where name=hyq;Java課程設計(qq聊天程序) MySQL-front Navicat SQLyo

7、g mysql-workbenchJava課程設計(qq聊天程序)userIDnamepasswordregDate. friendship ID user_ID friend_ID type frdDate . record ID user_ID friend_ID other info. .Java課程設計(qq聊天程序)LoginfriendListfriendManagementchatWindowgroupManagementchatRecordJava課程設計(qq聊天程序)Login.javabtnLogin.addActionListener(new ActionListene

8、r() public void actionPerformed(ActionEvent e) boolean checked = server.verify( this.getuser() , this.password() );/登錄驗證登錄驗證if(checked) new friendsWindow(); loginFrame.setVisible(false);/loginFrame.dispose();else. );Java課程設計(qq聊天程序)listFriend() /server.javaStatement s = conn.createStatement();Result

9、Set rs = s.executeQuery(selec, friendship.type + from user, friendship + where user.ID = friendship.friend_ID + ANer_ID = + this.getUserID()+);while(rs.next()int type = rs.getInt(type);swith (type) case 0: /friendNode.add(current);case 1: /strangeNode.add(current);default: /blacklistNode.add(current

10、);Java課程設計(qq聊天程序)每一個chatWindow對應一個線程所有chatWindow按照組進行分類，并且由server負責維護討論組每個討論組里面都應該有一個數據結構(list)維護組里的窗口Java課程設計(qq聊天程序)服務器收發消息時向數據庫中插入聊天記錄，或者本地維護另一個數據庫，在本地插入聊天記錄采用文本文件保存聊天記錄時，可以以對方用戶名/ID為文件名分別保存不同對象的聊天記錄 private BufferedReader inputStream = null; private BufferedWriter outputStream = null; private S

11、tringBuilder sb = new StringBuilder(); private String file; private int line = 0; /number zero private static SimpleDateFormat s = new SimpleDateFormat(yyyy-MM-dd);/格式化日期使用Java課程設計(qq聊天程序)public class public (String userID,String friendID) checkExsit(userID,friendID); run();private void checkExsit(S

12、tring userID,String friendID)/*檢查用戶聊天記錄文件夾路徑存在否，*userID為當前用戶，friendID為好友*/ File f = new .getProperties().getProperty(user.dir) + chatLog/ + userID); if(!f.exists()f.mkdirs(); file = f.getAbsolutePath() + / + friendID + .txt; f = new );if (!f.exists()/*檢查聊天記錄文件有無檢查聊天記錄文件有無*/ try f.createNewFile(); ca

13、tch (IOException e) e.printStackTrace(); Java課程設計(qq聊天程序)public void run() try inputStream = new BufferedReader(new (file); String l; while (l = inputStream.readLine() != null) line+; sb.append(l + System.getProperty(line.separator); catch ( e) e.printStackTrace(); catch (IOException e) e.printStack

14、Trace(); finally if (inputStream != null) try inputStream.close(); catch (IOException e) e.printStackTrace(); /獲取當前日期.格式為 2009-02-02private static String getDate() Date date = new Date();return + s.format(date) + ; /清除記錄public void removeMsg() line = 0; sb.delete(0, getString().length(); Java課程設計(qq

15、聊天程序) /保存聊天記錄.public void save(String msg)String newMsg = msg; /加入當前日期.if (msg.trim().length() != 0) newMsg = getDate() + System.getProperty(line.separator) + - + System.getProperty(line.separator) + newMsg; sb.append(System.getProperty(line.separator) + newMsg);try outputStream = new BufferedWriter

16、(new (file); outputStream.write(sb.toString(); catch (IOException e) e.printStackTrace();finally try outputStream.close(); catch (IOException e) e.printStackTrace(); /獲取記錄內容public String getString() return sb.toString(); /獲取行數public int getLines() return line; Java課程設計(qq聊天程序)private JTree tree; pri

17、vate TreeNode node; private DefaultTreeModel model; private DefaultTreeCellRenderer renderer; model = new DefaultTreeModel(node); tree = new JTree(model); renderer = new DefaultTreeCellRenderer(); renderer.setLeafIcon(new ImageIcon(a.jpg);/葉子結點圖片 renderer.setClosedIcon(new ImageIcon(b.jpg);/關閉樹后顯示的圖

18、片 renderer.setOpenIcon(new ImageIcon(c.jpg);/打開樹時顯示的圖片 tree.setCellRenderer(renderer); 頭像顯示Java課程設計(qq聊天程序)public class TreePopupMenu extends JFrame implements MouseListener, ActionListener private static final long serialVersionUID = 1L; JTree tree; JPopupMenu popMenu; JMenuItem addItem; JMenuItem

19、delItem; JMenuItem editItem; public TreePopupMenu() / JTree構造 / String model = 我的好友, 陌生人, 黑名單; / tree = new JTree(model); tree = new JTree(); tree.setEditable(true); tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION); tree.addMouseListener(this);JTree右鍵菜單Java課程設計(qq聊

20、天程序) tree.setCellEditor(new DefaultTreeCellEditor(tree, new DefaultTreeCellRenderer(); setSize(200, 800); popMenu = new JPopupMenu(); addItem = new JMenuItem(加入黑名單加入黑名單); addItem.addActionListener(this); delItem = new JMenuItem(刪除好友刪除好友); delItem.addActionListener(this); editItem = new JMenuItem(修改備

21、注修改備注); editItem.addActionListener(this); popMenu.add(addItem); popMenu.add(delItem); popMenu.add(editItem); getContentPane().add(new JScrollPane(tree); public void mouseClicked(MouseEvent e) public void mouseEntered(MouseEvent e) public void mouseExited(MouseEvent e) Java課程設計(qq聊天程序)public void mousePressed(MouseEvent e) TreePath path = tree.getPathForLocation(e.getX(), e.getY(); if (path = null) return; tree.setSelectionPath(path); if (e.getButton() = 3) popMenu.show(tree, e.getX(), e.getY(); public void mouseReleased(Mo