java课程设计实验报告

1、Java语言程序设计综合实验报告系 别: 计算机科学与技术系 学科专业: 信息管理与信息系统 课题题目： qq聊天系统 人员及分工：白 娟()张 丹() 张富利()指导老师： 卢照 2014年6月13日 目录一、课程设计目的3二、课程内容3三、实现代码（部分重要代码，不需要全粘）31.服务器：42.客户端：43.功能实现：74.图形化界面的转换：75.连接数据库代码：8四、运行结果（有必要的截图）111. 服务器启动：112. 客户端启动：123. 登入界面：124. 好友列表：125. 聊天界面：136. 数据库信息：13五、课程总结14六、小组分工141、 课程设计目的运用本学期java课

2、程所学知识制作一个小型的比较完整的小系统，旨在使学生对所学知识有一个整体的运用，了解java功能的强大，对学习java产生兴趣。2、 课程内容基本页面：登入页面，注册页面，好友列表页面，聊天页面，查询好友界面基本功能：注册信息，添加好友，查找好友，聊天三、实现代码（部分重要代码，不需要全粘）1.服务器代码：package com.sram.server;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.ObjectInputStream

3、;import java.io.ObjectOutputStream;import java.io.OutputStream;import java.io.PrintStream;import .ServerSocket;import .Socket;import java.util.HashMap;import java.util.List;import java.util.Map;import com.sram.bean.User;import com.sram.dao.UserDao;public class Server public static Ma

4、p socketMap = new HashMap();public static void main(String args) try ServerSocket ss = new ServerSocket(20001);System.out.println(服务器已启动,准备接收数据);while(true)Socket soc = ss.accept();ServerSocketThread sst = new ServerSocketThread(soc);Thread thr = new Thread(sst);thr.start(); catch (IOException e) /

5、TODO Auto-generated catch blocke.printStackTrace();class ServerSocketThread implements Runnableprivate Socket soc;public ServerSocketThread(Socket soc)this.soc = soc;public void run() System.out.println(接受到数据);UserDao ud = new UserDao();try BufferedReader br = new BufferedReader(new InputStreamReade

6、r(soc.getInputStream();String str = ;while(str = br.readLine()!= null)String strs = str.split(,);/1代表if(strs0.equals(1)String qq = strs1;String pass = strs2;User u = ud.findUser(qq, pass);OutputStream os = soc.getOutputStream();PrintStream ps = new PrintStream(os);if(u!=null)System.out.println(登陆成功)

7、;Server.socketMap.put(u.getQqNum(),soc);ps.println(1,yes,+u.getNickName();ps.flush();List li = ud.FriendList(u);li.add(u);ObjectOutputStream oos = new ObjectOutputStream(soc.getOutputStream();oos.writeObject(li);oos.flush();elseSystem.out.println(登陆失败);ps.println(1,no);if(strs0.equals(2)ObjectInputS

8、tream ois = new ObjectInputStream(soc.getInputStream();try User u = (User) ois.readObject();String qqnum = ud.insertUser(u);OutputStream os = soc.getOutputStream();PrintStream ps = new PrintStream(os);ps.println(2,ok,+qqnum); catch (ClassNotFoundException e) / TODO Auto-generated catch blocke.printS

9、tackTrace();if(strs0.equals(3)String friendNum = strs1;String userNum = strs2;String message = strs3;System.out.println(好友号码:+friendNum+,用户号码:+userNum+,信息:+message);Socket friendSoc = (Socket) Server.socketMap.get(friendNum);PrintStream ps = new PrintStream(friendSoc.getOutputStream();ps.println(str

10、);ps.flush();if(strs0.equals(4)String qqnum = strs1;User nu = ud.findUserfromQQ(qqnum);OutputStream os = soc.getOutputStream();PrintStream ps = new PrintStream(os);if(nu!=null)ps.println(4,ok);ps.flush();ObjectOutputStream oos = new ObjectOutputStream(soc.getOutputStream();oos.writeObject(nu);oos.fl

11、ush();elseps.println(4,no);ps.flush();if(strs0.equals(5)String qqnum = strs1;ObjectInputStream ois = new ObjectInputStream(soc.getInputStream();User u = (User) ois.readObject();User nu = ud.findUserfromQQ(qqnum);ud.addFriend(u.getId(), nu.getId();OutputStream os = soc.getOutputStream();PrintStream p

12、s = new PrintStream(os);ps.println(5,ok,+u.getQqNum()+,+u.getPass();ps.flush(); catch (IOException e) / TODO Auto-generated catch blocke.printStackTrace(); catch (ClassNotFoundException e) / TODO Auto-generated catch blocke.printStackTrace();2.客户端：package com.sram.client;import java.io.BufferedReade

13、r;import java.io.IOException;import java.io.InputStreamReader;import .Socket;import java.util.List;import com.sram.bean.User;import com.sram.util.MessageIO;import com.sram.view.ChatUI;import com.sram.view.FriendListUI;import com.sram.view.LoginUI;import com.sram.view.RegisterSuccessUI;import

14、 com.sram.view.SearchFriendUI;import com.sram.view.UIList;public class Client public static Socket soc;public static void main(String args) LoginUI lu = new LoginUI();UIList.UIlist.put(login, lu);ClientThread ct = new ClientThread();new Thread(ct).start();class ClientThread implements Runnablepublic

15、 void run()try BufferedReader br = new BufferedReader(new InputStreamReader(Client.soc.getInputStream();String str = ;while(str = br.readLine()!=null)String strs = str.split(,);if(strs0.equals(1)if(strs1.equals(yes)List li = (List) MessageIO.getObject();FriendListUI fui = new FriendListUI(li);UIList

16、.UIlist.put(friend, fui);UIList.UIlist.get(login).setVisible(false);if(strs0.equals(2)if(strs1.equals(ok)UIList.UIlist.get(register).setVisible(false);/UIList.UIlist.get(login).setVisible(true);new RegisterSuccessUI(strs2);if(strs0.equals(3)ChatUI cu = (ChatUI) UIList.UIlist.get(chatui);cu.jta1.setT

17、ext(strs3);if(strs0.equals(4)SearchFriendUI sfui = (SearchFriendUI) UIList.UIlist.get(search);if(strs1.equals(ok)User u = (User) MessageIO.getObject();sfui.jl2.setText(u.getNickName();elsesfui.jl2.setText(QQ号码错误);if(strs0.equals(5)if(strs1.equals(ok)UIList.UIlist.get(friend).setVisible(false);String

18、 qq = strs2;String pass = strs3;MessageIO.printlnString(1,+qq+,+pass); catch (IOException e) / TODO Auto-generated catch blocke.printStackTrace();3数据库的连接以及实现功能package com.sram.util;public class MessageIO private static Socket soc;public MessageIO(Socket soc)this.soc = soc;public static void printlnS

19、tring(String messege)try PrintStream ps = new PrintStream(soc.getOutputStream();ps.println(messege);ps.flush(); catch (IOException e) / TODO Auto-generated catch blocke.printStackTrace();public static void printObject(Object obj)OutputStream os;try os = soc.getOutputStream();ObjectOutputStream oos =

20、 new ObjectOutputStream(os);oos.writeObject(obj);oos.flush(); catch (IOException e) / TODO Auto-generated catch blocke.printStackTrace();package com.sram.dao;import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;

21、import java.util.ArrayList;import java.util.List;import com.sram.bean.User;import com.sram.util.GetConnection;public class UserDao public User findUser(String name,String pass)Connection conn = null;Statement stmt = null;ResultSet rs = null;try conn = GetConnection.getConnection();stmt = conn.create

22、Statement();rs = stmt.executeQuery(select * from t_user where qqnum=+name+ and password=+pass+);rs.next();User u = new User();u.setId(rs.getInt(id);u.setNickName(rs.getString(nickname);u.setPass(rs.getString(password);u.setQqNum(rs.getString(qqnum);return u; catch (SQLException e) / TODO Auto-genera

23、ted catch blocke.printStackTrace();finallytry if(rs!=null)rs.close();if(stmt!=null)stmt.close();if(conn!=null)conn.close(); catch (SQLException e) / TODO Auto-generated catch blocke.printStackTrace();return null;public String insertUser(User u)Connection conn = null;PreparedStatement ptmt = null;Res

24、ultSet rs = null;String qqnum = null;try conn = GetConnection.getConnection();ptmt = conn.prepareStatement(insert into t_user (qqnum,nickname,password) values(?,?,?);int i = findLastId();qqnum = (20000+i+1)+;ptmt.setString(1,qqnum);ptmt.setString(2, u.getNickName();ptmt.setString(3, u.getPass();bool

25、ean b = ptmt.execute();System.out.println(b);return qqnum; catch (SQLException e) / TODO Auto-generated catch blocke.printStackTrace();finallytry if(rs!=null)rs.close();if(ptmt!=null)ptmt.close();if(conn!=null)conn.close(); catch (SQLException e) / TODO Auto-generated catch blocke.printStackTrace();

26、return qqnum;public int findLastId()Connection conn = null;Statement stmt = null;ResultSet rs = null;try conn = GetConnection.getConnection();stmt = conn.createStatement();rs = stmt.executeQuery(select id from t_user order by id desc limit 1);if(rs.next()return rs.getInt(id);elsereturn 0; catch (SQL

27、Exception e) / TODO Auto-generated catch blocke.printStackTrace();finallytry if(rs!=null)rs.close();if(stmt!=null)stmt.close();if(conn!=null)conn.close(); catch (SQLException e) / TODO Auto-generated catch blocke.printStackTrace();return 0;public List FriendList(User u)Connection conn = null;Stateme

28、nt stmt = null;ResultSet rs = null;try conn = GetConnection.getConnection();stmt = conn.createStatement();int id = u.getId();List li = new ArrayList();rs = stmt.executeQuery(select id,qqnum,nickname from t_user where id in(select friendnum from t_friend where mynum = +id+);while(rs.next()User nu = n

29、ew User();nu.setId(rs.getInt(id);nu.setQqNum(rs.getString(qqnum);nu.setNickName(rs.getString(nickname);li.add(nu);return li; catch (SQLException e) / TODO Auto-generated catch blocke.printStackTrace();finallytry if(rs!=null)rs.close();if(stmt!=null)stmt.close();if(conn!=null)conn.close(); catch (SQL

30、Exception e) / TODO Auto-generated catch blocke.printStackTrace();return null;public User findUserfromQQ(String qqnum)Connection conn = null;Statement stmt = null;ResultSet rs = null;try conn = GetConnection.getConnection();stmt = conn.createStatement();rs = stmt.executeQuery(select * from t_user wh

31、ere qqnum = +qqnum);User nu = new User();while(rs.next()nu.setId(rs.getInt(id);nu.setQqNum(rs.getString(qqnum);nu.setNickName(rs.getString(nickname);return nu; catch (SQLException e) / TODO Auto-generated catch blocke.printStackTrace();finallytry if(rs!=null)rs.close();if(stmt!=null)stmt.close();if(conn!=null)conn.close(); catch (SQLException e) / TODO Auto-