前言：总是喜欢看日历，看多了突然萌发出来自己想做个日历出来的想法。本来自己是个程序员（java），目前上班空闲时间也算多；于是从网络上看了看有关怎样用java来实现日历的相关示例及文章，自己就开始动手操作了！｛不过现在做出来还是有点bug：就是程序初始化运行之后，系统当前日期的颜色突出显示问题；当我更换月份、或者是年份后再回到当前的时间，突出显示当前(今天的)时间的颜色会随鼠标的移动而消失；这个让我不解，试了好多种方式都没弄好！希望javaeye的高手们看了后，能帮我解决这个问题｝--此bug已修正……好了废话不多说，马上把源代码贴出。。。(注：Java日历.rar附件是用exe4j打包出来的exe可执行文件，如本机安装了JDK或是有不是安装版JDK的环境变量；都可以直接双击运行查看效果。JDK版本1.6+！上图为最新修改版的效果。。。)
package org.cal;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import javax.swing.ImageIcon;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableCellRenderer;
/**
* @author 作 者：xfeng
* @version 创建时间：2010-5-25 上午11:19:15
*/
@SuppressWarnings("serial")
class DateWin extends JFrame implements ItemListener {
private Calendar cd = null;
private int years;
private int months;
private int row;
private int column;
private int tcr_row;
private int tcr_column;
private int listen_tcr_row;
private int listen_tcr_column;
private boolean is_in_listener = false;
private String xingqi = null;
private JTable table;
private Object date[][];
private Object name[] = { "日", "一", "二", "三", "四", "五", "六" };
private JComboBox year = new JComboBox();
private JComboBox month = new JComboBox();
private JLabel label1;
private JLabel label2;
private JLabel label3;
private JLabel label4;
private JLabel label5;
private JPanel panel;
private JPanel rights_panel = forAddEndPanel();
static SimpleDateFormat chineseDateFormat = new SimpleDateFormat(
"yyyy年MM月dd日");
protected void toCenter() {
Toolkit kit = Toolkit.getDefaultToolkit(); // 定义工具包
Dimension screenSize = kit.getScreenSize(); // 获取屏幕的尺寸
int screenWidth = screenSize.width / 2; // 获取屏幕的宽
int screenHeight = screenSize.height / 2; // 获取屏幕的高
int height = this.getHeight();
int width = this.getWidth();
setLocation(screenWidth - width / 2, screenHeight - height / 2);
}
public void getDateWin(String s) {
ImageIcon title = new ImageIcon("images/title_xiong.gif");
setIconImage(title.getImage());
setTitle(s);
setSize(410, 202);
toCenter();
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setResizable(false);
int startYear=1900;
int endYear=2050;
cd=Calendar.getInstance();
int sysYear=cd.get(Calendar.YEAR);
for (int i = startYear; i < endYear; i++) {
int years = i;
if(endYear==sysYear){
endYear+=10;
}
year.addItem(years);
}
for (int i = 1; i < 13; i++) {
month.addItem(i);
}
label1 = new JLabel("当前查看：公历 ");
label2 = new JLabel("年");
label3 = new JLabel("月");
panel = new JPanel();
panel.add(label1);
panel.add(year);
panel.add(label2);
panel.add(month);
panel.add(label3);
Container con = getContentPane();
con.setLayout(new BorderLayout());
con.add(panel, BorderLayout.NORTH);
con.add(rights_panel, BorderLayout.SOUTH);
cd = new GregorianCalendar();
Calendar cal = Calendar.getInstance();
years = cd.get(Calendar.YEAR);
year.setSelectedItem(years);
months = cd.get(Calendar.MONTH) + 1;
month.setSelectedItem(months);
cd.set(Calendar.DATE, 1);
int dateNumber = cd.getActualMaximum(Calendar.DATE);
int firstDay = cd.get(Calendar.DAY_OF_WEEK) - 1;
int count = 1;
int is_today = cal.get(Calendar.DATE);
date = new Object[6][7];
Lunar lunar = null;
for (int i = 0; i < 6; i++) {
for (int j = 0; j < 7; j++) {
if (count == is_today) {
tcr_row = i;
tcr_column = j;
}
if (count > dateNumber)
break;
else {
if ((i * 7 + j) < firstDay)
continue;
else {
String today = years + "年" + months + "月" + count + "日";
Calendar currentDay = Calendar.getInstance();
try {
currentDay.setTime(chineseDateFormat.parse(today));
} catch (ParseException e) {
e.printStackTrace();
}
lunar = new Lunar(currentDay);
String currentDate = lunar.toString();
int startIndex = currentDate.length() - 2;
String showMonth = currentDate.substring(0, startIndex);
String showDay = currentDate.substring(startIndex);
if (showDay.equals("初一")) {
date[i][j] = count + "/" + showMonth;
} else {
date[i][j] = count + "/" + showDay;
}
count++;
}
}
}
}
final String cyclical = "星期" + name[tcr_column] + " 农历"
+ lunar.cyclical() + "年";
final String animalsYear = "【" + lunar.animalsYear() + "年】";
label4 = new JLabel(cyclical);
label5 = new JLabel(animalsYear);
panel.add(label4);
panel.add(label5);
table = new JTable(date, name);
table.setRowHeight(15);
table.setEnabled(false);
// 设置不能重新调整列宽
table.getTableHeader().setResizingAllowed(false);
// 设置不能重新排序各列
table.getTableHeader().setReorderingAllowed(false);
con.add(new JScrollPane(table), BorderLayout.CENTER);
// 标识系统当前时间高亮显示
DefaultTableCellRenderer tcr = new DefaultTableCellRenderer() {
public Component getTableCellRendererComponent(JTable table,
Object value, boolean isSelected, boolean hasFocus,
int row, int column) {
Component cell = super.getTableCellRendererComponent(table,
value, isSelected, hasFocus, row, column);
if (row == tcr_row && column == tcr_column
&& cell.isBackgroundSet()) {// 设置变色的单元格
cell.setBackground(Color.red);
} else {
cell.setBackground(Color.WHITE);
}
return cell;
}
};
// 设置表格单元格内容居中显示
tcr.setHorizontalAlignment(SwingConstants.CENTER);
for (int i = 0; i < name.length; i++) {
table.getColumn(name[i]).setCellRenderer(tcr);
}
year.addItemListener(this);
month.addItemListener(this);
foMmouseListener(true);
con.validate();
validate();
}
public void itemStateChanged(ItemEvent e) {
Calendar cal = Calendar.getInstance();
years = Integer.parseInt(year.getSelectedItem().toString());
months = Integer.parseInt(month.getSelectedItem().toString()) - 1;
cd = new GregorianCalendar(years, months, 1);
int dateNumber = cd.getActualMaximum(Calendar.DATE);
int firstDay = cd.get(Calendar.DAY_OF_WEEK) - 1;
int count = 1;
int is_year = cal.get(Calendar.YEAR);
int is_month = cal.get(Calendar.MONTH);
int is_day = cal.get(Calendar.DAY_OF_MONTH);
date = new Object[6][7];
Lunar lunar = null;
for (int i = 0; i < 6; i++) {
for (int j = 0; j < 7; j++) {
if (years == is_year && months == is_month && count == is_day) {
is_in_listener = true;
listen_tcr_row = i;
listen_tcr_column = j;
xingqi = "星期" + name[tcr_column] + " ";
}
if (count > dateNumber)
break;
else {
if ((i * 7 + j) < firstDay)
continue;
else {
String today = years + "年" + (months + 1) + "月" + count
+ "日";
Calendar currentDay = Calendar.getInstance();
try {
currentDay.setTime(chineseDateFormat.parse(today));
} catch (ParseException ex) {
ex.printStackTrace();
}
lunar = new Lunar(currentDay);
String currentDate = lunar.toString();
int startIndex = currentDate.length() - 2;
String showMonth = currentDate.substring(0, startIndex);
String showDay = currentDate.substring(startIndex);
if (showDay.equals("初一")) {
date[i][j] = count + "/" + showMonth;
} else {
date[i][j] = count + "/" + showDay;
}
count++;
}
}
}
}
panel.remove(label4);
panel.remove(label5);
final String cyclical = "农历" + lunar.cyclical() + "年";
final String animalsYear = "【" + lunar.animalsYear() + "年】";
if (years != is_year || months != is_month) {
xingqi = null;
}
label4 = new JLabel((xingqi == null ? "" : xingqi) + cyclical);
label5 = new JLabel(animalsYear);
panel.add(label4);
panel.add(label5);
table = new JTable(date, name);
table.setRowHeight(15);
table.setEnabled(false);
// 设置不能重新调整列宽
table.getTableHeader().setResizingAllowed(false);
// 设置不能重新排序各列
table.getTableHeader().setReorderingAllowed(false);
getContentPane().removeAll();
getContentPane().setLayout(new BorderLayout());
getContentPane().add(panel, BorderLayout.NORTH);
getContentPane().add(rights_panel, BorderLayout.SOUTH);
getContentPane().add(new JScrollPane(table), BorderLayout.CENTER);
// 标识系统当前时间高亮显示
DefaultTableCellRenderer tcr = new DefaultTableCellRenderer() {
public Component getTableCellRendererComponent(JTable table,
Object value, boolean isSelected, boolean hasFocus,
int _row, int _column) {
Component cell = super.getTableCellRendererComponent(table,
value, isSelected, hasFocus, _row, _column);
if (is_in_listener && _row == listen_tcr_row
&& _column == listen_tcr_column
&& cell.isBackgroundSet()) {// 设置变色的单元格
cell.setBackground(Color.red);
is_in_listener = false;
} else {
cell.setBackground(Color.white);
}
return cell;
}
};
// 设置表格单元格内容居中显示
tcr.setHorizontalAlignment(SwingConstants.CENTER);
for (int i = 0; i < name.length; i++) {
table.getColumn(name[i]).setCellRenderer(tcr);
}
foMmouseListener(false);
getContentPane().validate();
validate();
}
private void foMmouseListener(final boolean is_in_listener) {
table.addMouseMotionListener(new MouseMotionListener() {
public void mouseDragged(MouseEvent e) {
}
public void mouseMoved(MouseEvent e) {
Point point = e.getPoint();
int x = table.rowAtPoint(point);
int y = table.columnAtPoint(point);
if (x != row || y != column) {
row = x;
column = y;
}
Object tip = table.getValueAt(row, column);
if (tip != null) {
String tip_str = tip.toString();
String date_yangli_tip = tip_str.substring(0, tip_str
.lastIndexOf("/"));
StringBuffer tipText = new StringBuffer();
StringBuffer move_currentDay_str = new StringBuffer();
move_currentDay_str.append(years);
move_currentDay_str.append("年");
if (is_in_listener) {
move_currentDay_str.append(months);
} else {
move_currentDay_str.append((months + 1));
}
move_currentDay_str.append("月");
move_currentDay_str.append(date_yangli_tip);
move_currentDay_str.append("日 ");
Calendar move_currentDay = Calendar.getInstance();
try {
move_currentDay.setTime(chineseDateFormat
.parse(move_currentDay_str.toString()));
} catch (ParseException ex) {
ex.printStackTrace();
}
Lunar move_lunar = new Lunar(move_currentDay);
tipText.append(move_currentDay_str);
tipText.append("星期");
tipText.append(name[column] + " ");
tipText.append("农历");
tipText.append(move_lunar.toString());
table.setToolTipText(tipText.toString());
} else {
table.setToolTipText("");
}
}
});
}
private JPanel forAddEndPanel() {
JPanel rights_panel = new JPanel();
JLabel contact_label = new JLabel("联系方式：xiong_jx@foxmail.com");
JLabel design_name_label = new JLabel("作者：Design By xfeng ");
contact_label.setFont(new Font("宋体", 0, 12));
design_name_label.setFont(new Font("宋体", 0, 12));
contact_label.setForeground(Color.blue);
design_name_label.setForeground(Color.blue);
contact_label.setPreferredSize(new java.awt.Dimension(206, 13));
rights_panel.add(contact_label);
rights_panel.add(design_name_label);
return rights_panel;
}
/**
* @param args
*/
public static void main(String[] args) {
/*----------设置成系统风格---------*/
try {
String laf = UIManager.getSystemLookAndFeelClassName();
UIManager.setLookAndFeel(laf);
} catch (Exception e) {
e.printStackTrace();
}
DateWin dateWin = new DateWin();
dateWin.getDateWin("Java日历 - 【xfeng】");
}
}
农历显示的类文件是从网上找到的，在这里感谢那位提供者！附件MainCal.rar中的Lunar.java就是提供显示农历的java类；解压MainCal.rar在Myeclipse中直接运行MainDate.java类，也可以查看效果…
注：根据网友回馈的bug，【农历显示错误】我做了一下修改；上面主程序日历代码也有所变更，想查看更改后的效果：请下载“附件更改”的附件，两个附件是对应之前的；源代码就不贴出来了，请自己看附件吧……
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