ATM程序java實(shí)現(xiàn)(客戶端+服務(wù)器)

1、程序?qū)崿F(xiàn)其實(shí)并不是很難，主要是思路，對(duì)程序的各個(gè)功能的設(shè)計(jì)，各個(gè)按鈕的處理事件及按鈕按照邏輯顯示出來(lái)和隱藏。服務(wù)器采用多線程并行機(jī)制，針對(duì)每個(gè)用戶登錄創(chuàng)建一個(gè)線程。程序代碼客戶端：importjavax.swing.*;.*;importjava.io.*;importjava.util.*;importjava.awt.event.*;importjava.awt.*;importjava.sql.*;importjava.math.*;importjavax.swing.*;classATMWindowsextendsJFrameimplementsActionListenerFontf;

2、Socketclint=null;DataOutputStreamout=null;DataInputStreamin=null;Connectioncon;Statementpre;ResultSetrs;inti,money;booleanb=true;/b的取值有0,1,共2個(gè)值分別告訴程序該吧數(shù)字鍵盤的輸入復(fù)制給username,password,Stringsusername=null;Stringspassword=null;Boxbox1,box2,box3,box11,box12;JPanelpanel1,panel2;JLabeltishi;JTextFieldusernam

3、e;JPasswordFieldpassword;JButtonn,queding,chaxun,qukuan,tuichu;ATMWindows(Strings)GraphicsEnvironmentge=GraphicsEnvironment.getLocalGraphicsEnvironment();Stringt=ge.getAvailableFontFamilyNames();f=newFont(t67,Font.BOLD,16);n=newJButton10;box1=Box.createVerticalBox();box2=Box.createHorizontalBox();bo

4、x3=Box.createVerticalBox();panel1=newJPanel();panel2=newJPanel();tishi=newJLabel("歡迎使用XX銀行！請(qǐng)輸入卡號(hào)。");tishi.setFont(f);username=newJTextField(20);password=newJPasswordField(20);panel1.setLayout(newGridLayout(3,3);panel2.setLayout(newGridLayout(4,1);for(i=1;i<n.length;i+)ni=newJButton(&quo

5、t;"+i);panel1.add(ni);ni.addActionListener(this);n0=newJButton("0");panel1.add(n0);n0.addActionListener(this);n0.setPreferredSize(newDimension(20,20);queding=newJButton("確定");chaxun=newJButton("查詢");/用戶輸入賬號(hào)和密碼后，點(diǎn)擊查詢按鈕登陸qukuan=newJButton("取款");tuichu=newJB

6、utton("退出");qukuan.show(false);chaxun.show(false);/初始化窗口后，賬號(hào)和密碼還沒(méi)輸入，不能用查詢按鈕登陸box1.add(tishi);tishi.setBounds(50,10,290,60);box1.add(username);username.setBounds(50,60,300,20);password.setBounds(60,60,300,20);panel2.add(queding);panel2.add(chaxun);panel2.add(qukuan);panel2.add(tuichu);box1.

7、setBounds(50,10,300,60);n0.setBounds(50,290,200,70);panel1.setBounds(50,80,200,210);panel2.setBounds(250,80,100,280);add(box1);add(panel1);add(panel2);add(n0);tuichu.addActionListener(this);queding.addActionListener(this);chaxun.addActionListener(this);qukuan.addActionListener(this);setLayout(null);

8、setTitle(s);setBounds(200,200,400,400);validate();setResizable(false);setVisible(true);setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);publicvoidactionPerformed(ActionEvente)if(e.getSource()=tuichu)/用戶退出，窗口不關(guān)閉，需要從新輸入賬號(hào)和密碼b=true;/用戶推出之后，從數(shù)字鍵輸入到usernamebox1.add(username);box1.remove(password);box1.v

9、alidate();username.setText(null);money=0;susername=null;spassword=null;tishi.setText("歡迎使用XX銀行！請(qǐng)輸入卡號(hào)。")；chaxun.show(false);queding.show(true);qukuan.show(false);/用戶退出，查詢和取款按鈕不可見(jiàn)if(clint!=null)tryout.writeInt(-1);/服務(wù)器輸入數(shù)字-1，表示客戶已經(jīng)退出，服務(wù)器可以關(guān)閉該客戶的進(jìn)程catch(IOExceptione1)System.out.println(e1);el

10、seif(e.getSource()=queding)if(susername=null)susername=username.getText();username.setText(null);tishi.setText("請(qǐng)輸入密碼");b=false;/從數(shù)字鍵輸入到passwordbox1.remove(username);box1.add(password);box1.validate();password.setText(null);elseif(spassword=null)spassword=password.getText();chaxun.show(tru

11、e);b=true;/從數(shù)字鍵輸入到usernamequeding.show(false);tishi.setText("請(qǐng)點(diǎn)擊查詢按鈕登陸！");password.setText(null);elseintyue;try取款BigIntegern=newBigInteger(username.getText();yue=Value();if(yue>=0&&Value()>0)/余額大于等于0，表示用戶可以out.writeInt(Value();money=in.readInt();if(money&

12、lt;=yue)tishi.setText("取款成功，您的余額為："+money);queding.show(false);username.setText(null);box1.validate();elseif(money=-3)/服務(wù)器連接數(shù)據(jù)庫(kù)錯(cuò)誤，取款失敗money=yue;tishi.setText("抱歉！服務(wù)器錯(cuò)誤，取款失敗。");username.setText(null);box1.validate();qukuan.show(false);queding.show(false);validate();elsequeding.sho

13、w(false);tishi.setText("操作失敗，您的余額為："+money);username.setText(null);box1.remove(username);box1.validate();qukuan.show(true);validate();elsetishi.setText("輸入錯(cuò)誤，不能大于您的余額"+money);qukuan.show(true);queding.show(false);chaxun.show(false);username.setText(null);validate();catch(IOExcept

14、ione1)"+money);tishi.setText("輸入錯(cuò)誤，不能大于您的余額qukuan.show(true);queding.show(false);chaxun.show(false);username.setText(null);validate();System.out.println(e1);elseif(e.getSource()=qukuan)tishi.setText("請(qǐng)輸入取款金額然后點(diǎn)擊確定。");box1.remove(password);box1.add(username);box1.validate();box1.r

15、emove(username);box1.add(username);box1.validate();username.setText(null);qukuan.show(false);queding.show(true);elseif(e.getSource()=chaxun)tryclint=newSocket("localhost",4333);in=newDataInputStream(clint.getInputStream();out=newDataOutputStream(clint.getOutputStream();tishi.setText("

16、連接到服務(wù)器");catch(IOExceptione1)tishi.setText("無(wú)法連接到服務(wù)器！");tryout.writeUTF(susername);out.writeUTF(spassword);money=in.readInt();if(money>=0)tishi.setText("登陸成功，您當(dāng)前余額為："+money);chaxun.show(false);qukuan.show(true);box1.remove(password);box1.validate();return;elseif(money=-1)

17、tishi.setText("卡號(hào)錯(cuò)誤請(qǐng)從新輸入卡號(hào)和密碼");susername=null;spassword=null;box1.remove(password);box1.add(username);box1.validate();password.setText(null);username.setText(null);queding.show(true);chaxun.show(false);validate();return;elseif(money=-2)tishi.setText（"密碼錯(cuò)誤請(qǐng)從新輸入密碼！"）;spassword=nul

18、l;password.setText(null);chaxun.show(false);queding.show(true);b=false;/用戶輸入密碼錯(cuò)誤，數(shù)字鍵盤輸入到passwordreturn;elsetishi.setText("抱歉！服務(wù)器錯(cuò)誤，暫停服務(wù)。");queding.show(true);susername=null;spassword=null;box1.remove(password);box1.add(username);box1.validate();username.setText(null);chaxun.show(false);ret

19、urn;catch(IOExceptione1)System.out.println(e1);elsefor(i=0;i<n.length;i+)if(b)if(e.getSource()=ni)username.setText(username.getText()+i);return;elseif(e.getSource()=ni)password.setText(password.getText()+i);return;publicclassATMpublicstaticvoidmain(Stringargs)ATMWindowsatm=newATMWindows("ATM

20、");服務(wù)器：importjavax.swing.*;.*;importjava.io.*;importjava.util.*;importjava.util.Date;importjava.awt.event.*;importjava.awt.*;importjava.sql.*;importjava.math.*;importjavax.swing.*;importjava.text.SimpleDateFormat;publicclassATMServerpublicstaticvoidmain(Stringags)ServerSocketserver=null;Sockety

21、ou=null;while(true)tryserver=newServerSocket(4333);catch(IOExceptione)System.out.println("正在監(jiān)聽(tīng)");tryyou=server.accept();catch(IOExceptione)System.out.println("正在等待客戶");if(you!=null)newServerThread(you).start();classServerThreadextendsThreadDBdb=newDB();intb,money;ResultSetrs;Sock

22、etsocket;DataOutputStreamout=null;DataInputStreamin=null;Stringsusername=null;Stringspassword=null;ServerThread(Socketyou)tryin=newDataInputStream(you.getInputStream();out=newDataOutputStream(you.getOutputStream();catch(IOExceptione)System.out.println(e);publicvoidrun()trysusername=in.readUTF();spas

23、sword=in.readUTF();System.out.println(susername);if(db.connect()=1)/數(shù)據(jù)庫(kù)連接成功b=db.select(susername,spassword);db.close();out.writeInt(b);if(b>=0)/用戶賬號(hào)和密碼正確，登陸成功，等待取款while(true)money=in.readInt();if(money>=0)/客戶端輸入大于等于0時(shí)，準(zhǔn)備取款，update數(shù)據(jù)庫(kù)db.connect();money=db.select(susername,spassword)-money;if(db.

24、update(money,susername)>0)/數(shù)據(jù)庫(kù)update成功，返回操作后的余額給客戶端System.out.println("數(shù)據(jù)庫(kù)update成功，返回操作后的余額給客戶端");out.writeInt(db.select(susername,spassword);else/數(shù)據(jù)庫(kù)update失敗，返回當(dāng)前余額給客戶端out.writeInt(db.select(susername,spassword);db.close();elseif(money=-1)/用戶已在客戶端退出db.close();System.out.println("此

25、用戶已經(jīng)退出終端，線程自動(dòng)結(jié)束");break;elseif(b=-3)db.close();System.out.println("數(shù)據(jù)庫(kù)錯(cuò)誤，用戶登陸失敗，自動(dòng)關(guān)閉連接線程");else/用戶驗(yàn)證失敗db.close();System.out.println("賬號(hào)或者密碼錯(cuò)誤，用戶登陸失敗，自動(dòng)關(guān)閉連接線程");elseout.writeInt(-3);/用-3表示數(shù)據(jù)庫(kù)連接失敗，通知客戶端暫停使用catch(IOExceptione)System.out.println(e);classDBConnectioncon;PreparedS

26、tatementpre;ResultSetrs=null;Stringsql=null;DB()publicintconnect()tryClass.forName("sun.jdbc.odbc.JdbcOdbcDriver");catch(ClassNotFoundExceptione)System.out.println(""+e);return0;trycon=DriverManager.getConnection("jdbc:odbc:user","","");System.out.pr

27、intln("數(shù)據(jù)庫(kù)連接成功");return1;catch(SQLExceptione)System.out.println(e);return0;publicintselect(Stringsusername,Stringspassword)trypre=con.prepareStatement("SELECT*FROMuserWHEREusername=?");pre.setString(1,susername);rs=pre.executeQuery();while(rs.next()if(spassword.equals(rs.getString(3)returnrs.getInt("usermoney");/密碼正確，返回余額給客戶端elsereturn-2;/用-2表示密碼錯(cuò)誤catch(SQLExceptione)System.out.println(e);return-3;/數(shù)據(jù)庫(kù)錯(cuò)誤，return-1;/用-1表示賬號(hào)錯(cuò)誤publicintupdate(intmoney,Stringsusername)try