Java编写 万年历.doc

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1、27陕西师范大学远程教育学院考查课科目java程序设计姓 名霍娟学 号61861610310002专 业计算机科学与技术批 次 161层 次专升本学习中心铜川职业技术学院Java万年历一 项目概述：这个项目是一个简单的Java万年历，可以实现所有年份的公历日期的查询，并且在相应的日期做备忘录，以及可以显示当前的日期以及时间。使用的是Oracle数据库进行连接。 二 具体功能介绍：（1）万年历查询：点击图形界面中的上年、下年键用来调整要查询的年份，或者可以直接在上年下年按钮直接的文本框中输入年份（负数表示公元前），以回车结束；点击上月或者下月来调整要查询的月份，然后可以看到这个月的每一天所对应的

2、星期。（2）Clock功能：在万年历下面显示当前的年月日时分秒，相当于一个时钟的功能。（3）记事本功能：可以任选某年某月的某一天，单击，在右侧会出现这一天的备忘录，如果存在，则显示某年某月某日有日志记载，是否想看，否则，则在文本框中显示无记录；然后可以编辑这一天的备忘录，编辑好了之后，点击保存日志，弹出对话框某年某月某日保存日志吗，点击保存，则日志被保存，反之未被保存；若想删除某日的日志，则单击这一天，然后点击右侧的删除日志，显示删除某年某月某日的日志吗，点击是，则日志被删除。从文件中读取备忘录的内容，用数据库进行存储和删除操作。三 设计与实现（需要附全部代码，GUI自动生成代码除外）：1 类

3、的设计（继承、多态、数据结构）：核心类是Month,Year,NotePad,Clock,DBAccess,CalendarPad.（其中继承用粗体，接口用粗斜体，数据结构是哈希表，用粗下划线，多态用斜体+点点短线式下划线）2 Java IO （文件访问）：用的是粗体+浪线3 JDBC （数据库访问）：使用Oracle数据库连接，是直连（双下划线）数据库是：create table mynotes( mydate varchar2(50) primary key, note varchar2(100) not null);4 Socket + Multi-Thread：斜体（定义在Clock中

4、的Thread t） 5 GUI （用户界面）：点下划线来表示GUI用户界面6 其他功能：（无）以下是全部代码（共六个.Java文件）/对月份的选择package javaapplication13;import javax.swing.*;import java.awt.*;import java.awt.event.*;public class Month extends Box implements ActionListener/ActionListener接口 int month; JTextField showMonth=null;JButton RMonth,NMonth; Cal

5、endarPad cal; public Month(CalendarPad c) super(BoxLayout.X_AXIS); this.cal=c; showMonth=new JTextField(2); month=c.getMonth(); showMonth.setEditable(false); showMonth.setForeground(Color.blue);showMonth.setFont(new Font(TimesRomn,Font.BOLD,16);NMonth=new JButton(下月);RMonth=new JButton(上月); add(RMon

6、th); add(showMonth); add(NMonth); RMonth.addActionListener(this); NMonth.addActionListener(this); showMonth.setText(+month); public void setMonth(int month) if(month=1) this.month=month; else this.month=1; showMonth.setText(+month); public int getMonth() return month; public void actionPerformed(Act

7、ionEvent e) if(e.getSource()=RMonth) if(month=2) month=month-1; cal.setMonth(month); cal.setCal(cal.getYear(),month); else if(month=1) month=12; cal.setMonth(month); cal.setCal(cal.getYear(),month); showMonth.setText(+month); else if(e.getSource()=NMonth) if(month12) month=month+1; cal.setMonth(mont

8、h); cal.setCal(cal.getYear(),month); else if(month=12) month=1; cal.setMonth(month); cal.setCal(cal.getYear(),month); showMonth.setText(+month); /对年分的选择package javaapplication13;import javax.swing.*;import java.awt.*;import java.awt.event.*;public class Year extends Box implements ActionListener/Act

9、ionListener接口 int year; JTextField showYear=null;JButton NYear,RYear; CalendarPad cal; public Year(CalendarPad c) super(BoxLayout.X_AXIS); showYear=new JTextField(4);showYear.setForeground(Color.blue);showYear.setFont(new Font(TimesRomn,Font.BOLD,14); this.cal=c; year=cal.getYear(); NYear=new JButto

10、n(下年);RYear=new JButton(上年); add(RYear); add(showYear); add(NYear); showYear.addActionListener(this); RYear.addActionListener(this); NYear.addActionListener(this); public void setYear(int year) this.year=year; showYear.setText(+year); public int getYear() return year; public void actionPerformed(Act

11、ionEvent e) if(e.getSource()=RYear) year=year-1; showYear.setText(+year); cal.setYear(year); cal.setCal(year,cal.getMonth(); else if(e.getSource()=NYear) year=year+1; showYear.setText(+year); cal.setYear(year); cal.setCal(year,cal.getMonth(); else if(e.getSource()=showYear) try year=Integer.parseInt

12、(showYear.getText(); showYear.setText(+year); cal.setYear(year); cal.setCal(year,cal.getMonth(); catch(NumberFormatException ee) showYear.setText(+year); cal.setYear(year); cal.setCal(year,cal.getMonth(); /对备忘录的操作package javaapplication13;import java.awt.*;import java.awt.event.*;import java.util.*;

13、import javax.swing.*;import javax.swing.event.*;import java.io.*;public class NotePad extends JPanel implements ActionListener JTextArea text;JButton save_log,del_log; Hashtable table; JLabel mes_label; int year,month,day; File file; CalendarPad calendar; public NotePad(CalendarPad calendar)/构造函数 th

14、is.calendar=calendar; Calendar now = Calendar.getInstance(); int hour=now.get(Calendar.HOUR); int minute=now.get(Calendar.MINUTE); year=calendar.getYear(); month=calendar.getMonth(); day=calendar.getDay(); table=calendar.getHashtable(); file=calendar.getFile(); mes_label=new JLabel(+year+年+month+月+d

15、ay+日+ +hour+:+minute,JLabel.CENTER);mes_label.setFont(new Font(TimesRoman,Font.BOLD,16);mes_label.setForeground(Color.MAGENTA);text=new JTextArea(10,8);save_log=new JButton(保存日志) ;del_log=new JButton(删除日志) ; save_log.addActionListener(this); del_log.addActionListener(this); setLayout(new BorderLayou

16、t(); JPanel pSouth=new JPanel();add(mes_label,BorderLayout.NORTH);pSouth.add(save_log);pSouth.add(del_log);add(pSouth,BorderLayout.SOUTH);add(new JScrollPane(text),BorderLayout.CENTER); public void actionPerformed(ActionEvent e) if(e.getSource()=save_log) saveLog(year,month,day); else if(e.getSource

17、()=del_log) delLog(year,month,day); public void setYear(int year) this.year=year; public int getYear() return year; public void setMonth(int month) this.month=month; public int getMonth() return month; public void setDay(int day) this.day=day; public int getDay() return day; public void setMesLabel(

18、int year,int month,int day) mes_label.setText(+year+年+month+月+day+日); public void setText(String s) text.setText(s); public void getLog(int year,int month,int day) String key=+year+month+day; try FileInputStream inOne=new FileInputStream(file);ObjectInputStream inTwo=new ObjectInputStream(inOne); ta

19、ble=(Hashtable)inTwo.readObject(); inOne.close(); inTwo.close(); catch(Exception ee) if(table.containsKey(key) String m=+year+年+month+月+day+这一天有日志记载,想看吗?; int ok=JOptionPane.showConfirmDialog(this,m,询问,JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE); if(ok=JOptionPane.YES_OPTION) text.setTe

20、xt(String)table.get(key); else text.setText(); else text.setText(无记录); public void saveLog(int year,int month,int day) String 日志内容=text.getText(); String key=+year+month+day; String m=+year+年+month+月+day+保存日志吗?; int ok=JOptionPane.showConfirmDialog(this,m,询问,JOptionPane.YES_NO_OPTION, JOptionPane.QU

21、ESTION_MESSAGE); if(ok=JOptionPane.YES_OPTION) try FileInputStream inOne=new FileInputStream(file); ObjectInputStream inTwo=new ObjectInputStream(inOne); table=(Hashtable)inTwo.readObject(); inOne.close(); inTwo.close(); table.put(key,日志内容); FileOutputStream out=new FileOutputStream(file);ObjectOutp

22、utStream objectOut=new ObjectOutputStream(out); objectOut.writeObject(table); objectOut.close(); out.close(); catch(Exception ee) /向数据库中添加数据。先查询数据库，判断是否已有该日记录，若有则更新，否则插入 DBAccess db = new DBAccess(); if(db.createConn() String testSql = select * from mynotes where mydate=+key+; db.query(testSql); if

23、(db.next() String updatesql = update mynotes set note= + 日志内容 + where mydate= + key +; try updatesql = new String(updatesql.getBytes(ISO8859-1), UTF-8); catch (Exception e) e.printStackTrace(); db.closeRs(); db.closeStm(); db.closeConn(); return; db.closeRs(); / 组合新增SQL String sql = insert into myno

24、tes (mydate, note) ; sql += values( + key + ,+日志内容 + ); / 转换参数编码 try sql = new String(sql.getBytes(ISO8859-1), UTF-8); catch (Exception e) e.printStackTrace(); /*/ 执行插入 db.update(sql); db.closeStm(); db.closeConn(); public void delLog(int year,int month,int day) String key=+year+month+day; if(table.

25、containsKey(key) String m=删除+year+年+month+月+day+日的日志吗?; int ok=JOptionPane.showConfirmDialog(this,m,询问,JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE); if(ok=JOptionPane.YES_OPTION) try FileInputStream inOne=new FileInputStream(file); ObjectInputStream inTwo=new ObjectInputStream(inOne); ta

26、ble=(Hashtable)inTwo.readObject(); inOne.close(); inTwo.close(); table.remove(key); FileOutputStream out=new FileOutputStream(file);ObjectOutputStream objectOut=new ObjectOutputStream(out); objectOut.writeObject(table); objectOut.close(); out.close(); text.setText(null); catch(Exception ee) else Str

27、ing m=+year+年+month+月+day+无日志记录; JOptionPane.showMessageDialog(this,m,提示,JOptionPane.WARNING_MESSAGE); /删除数据库记录 DBAccess db = new DBAccess(); if(db.createConn() / 根据name组成删除SQL，执行删除 String sql = delete from mynotes where mydate= +key+; db.update(sql); db.closeStm(); db.closeConn(); /提取当前的年月日时分秒，时钟pa

28、ckage javaapplication13;import java.awt.Canvas;import java.awt.Color;import java.awt.Font;import java.awt.Graphics;import java.text.SimpleDateFormat;import java.util.Calendar;class Clock extends Canvas implements Runnable private static final long serialVersionUID = 3660124045489727166L; CalendarPad

29、 mf;Thread t;/Multi-Thread（斜体）String time; public Clock(CalendarPad mf) this.mf=mf; setSize(280,40); setBackground(Color.white); t=new Thread(this); /实例化线程 t.start(); /调用线程 public void run() while(true) try Thread.sleep(1000); /休眠1秒钟 catch(InterruptedException e) System.out.println(异常); this.repaint

30、(100); /重画屏幕 /*public abstract void drawString(AttributedCharacterIterator iterator, int x, int y)依据 TextAttribute 类的规范应用指定迭代器的属性，呈现迭代器的文本。最左侧字符的基线位于此图形上下文坐标系的 (x, y) 位置处。 */对paint函数进行重写（多态） public void paint(Graphics g) Font f=new Font(宋体,Font.BOLD,16); SimpleDateFormat SDF=new SimpleDateFormat( yy

31、yy年MM月dd日HH:mm:ss);/格式化时间显示类型 Calendar now=Calendar.getInstance(); time=SDF.format(now.getTime(); /得到当前日期和时间 g.setFont(f); g.setColor(Color.RED); g.drawString(time,25,25); /用Oracle的方式连接数据库package javaapplication13;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;imp

32、ort java.sql.SQLException;import java.sql.Statement;/JDBC 数据库连接，直连，利用Oracle（双下划线）public class DBAccess public static String drv = oracle.jdbc.driver.OracleDriver;public static String url = jdbc:oracle:thin:localhost:1521:orcl;public static String usr = scott;public static String pwd = helloneal;priv

33、ate Connection conn = null;private Statement stm = null;private ResultSet rs = null;public boolean createConn() boolean b = false;try Class.forName(drv).newInstance();conn = DriverManager.getConnection(url, usr, pwd);b = true; catch (SQLException e) catch (ClassNotFoundException e) catch (Instantiat

34、ionException e) catch (IllegalAccessException e) return b;public boolean update(String sql) boolean b = false;try stm = conn.createStatement();stm.execute(sql);b = true; catch (Exception e) System.out.println(e.toString();return b;public void query(String sql) try stm = conn.createStatement();rs = stm.executeQuery(sql); catch (Exception e) public boolean next() boolean b = false;try if(rs.next()b = true; catch (Exception e) return b;public String get