JAVA自定义日期选择器

来源：互联网发布：qq旋风for mac下载编辑：程序博客网时间：2024/05/13 23:18
用java swing写的一个日期选择器.
先上效果图
这里写图片描述
代码如下：
package com.jianggujin;import java.awt.Color;import java.awt.GridLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.ItemEvent;import java.awt.event.ItemListener;import java.awt.event.MouseAdapter;import java.awt.event.MouseEvent;import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.Date;import javax.swing.ImageIcon;import javax.swing.JButton;import javax.swing.JComboBox;import javax.swing.JDialog;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.UIManager;/** * 日期选择器控件 *  * @author jianggujin *  */@SuppressWarnings("serial")public final class JDateChooser extends JDialog{   // 定义相关参数   /**    * 年份    */   private int year = 0;   /**    * 月份    */   private int month = 0;   /**    * 天    */   private int date = 0;   /**    * 日期选择背景色    */   private Color selectColor = Color.green;   /**    * 日期背景色    */   private Color dateColor = Color.white;   /**    * 日期鼠标进入背景色    */   private Color dateHoverColor = Color.lightGray;   /**    * 日期标题背景色    */   private Color dateTitleColor = Color.gray;   /**    * 日期标题字体颜色    */   private Color dateTitleFontColor = Color.black;   /**    * 日期字体颜色    */   private Color dateFontColor = Color.black;   /**    * 日期是否有效标志    */   private boolean flag = false;   /**    * 最小年份    */   private int minYear = 1900;   /**    * 最大年份    */   private int maxYear = 2050;   // 定义所需组件   /**    * 上一年    */   private JButton jbYearPre;   /**    * 下一年    */   private JButton jbYearNext;   /**    * 上一月    */   private JButton jbMonthPre;   /**    * 下一月    */   private JButton jbMonthNext;   /**    * 年份下拉选择框    */   private JComboBox<String> jcbYear;   /**    * 月份下拉选择框    */   private JComboBox<String> jcbMonth;   /**    * 天标签    */   private JLabel[][] jlDays;   /**    * 选择    */   private JButton jbChoose;   /**    * 今日    */   private JButton jbToday;   /**    * 取消    */   private JButton jbCancel;   /**    * 程序主方法    *     * @param args    *           命令参数    */   public static void main(String[] args)   {      try      {         UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());      }      catch (Exception e)      {      }      JDateChooser gg = new JDateChooser();      gg.showDateChooser();      System.out.println(gg.getDateFormat("yyyy-MM-dd"));   }   /**    * 显示对话框    */   public void showDateChooser()   {      setVisible(true);   }   /**    * 关闭对话框    */   public void closeDateChooser()   {      this.dispose();   }   /**    * 设置时间    *     * @param year    *           年份 1900-2050    * @param month    *           月份 1-12    * @param date    *           天    */   public void setDate(int year, int month, int date)   {      if (year >= minYear && year <= maxYear)      {         this.year = year;      }      else      {         return;      }      if (month >= 1 && month <= 12)      {         this.month = month;      }      else      {         return;      }      if (date > 0 && date <= getDaysInMonth(year, month))      {         this.date = date;      }      else      {         return;      }   }   /**    * 获得用户操作是否有效标志    *     * @return 事件是否有效    */   public boolean getFlag()   {      return flag;   }   /**    * 构造方法    */   public JDateChooser()   {      initComponent();      initComponentData();      addComponent();      addListener();      setDialogAttribute();   }   /**    * 实例化组件    */   private void initComponent()   {      jbYearPre = new JButton();      jbYearNext = new JButton();      jbMonthPre = new JButton();      jbMonthNext = new JButton();      jcbYear = new JComboBox<String>();      jcbMonth = new JComboBox<String>();      jlDays = new JLabel[7][7];      jbChoose = new JButton();      jbToday = new JButton();      jbCancel = new JButton();   }   /**    * 初始化组件数据    */   private void initComponentData()   {      jbYearPre.setText("←");      jbYearNext.setText("→");      jbMonthPre.setText("↑");      jbMonthNext.setText("↓");      Calendar calendar = Calendar.getInstance();      if (year != 0 && month != 0 && date != 0)      {         calendar.set(year, month - 1, date);      }      else      {         year = calendar.get(Calendar.YEAR);         month = calendar.get(Calendar.MONTH) + 1;         date = calendar.get(Calendar.DAY_OF_MONTH);      }      initYear();      jcbYear.setSelectedItem(year + "年");      for (int i = 1; i <= 12; i++)      {         jcbMonth.addItem(i + "月");      }      jcbMonth.setSelectedItem(month + "月");      for (int i = 0; i < 7; i++)      {         JLabel temp = new JLabel();         temp.setHorizontalAlignment(JLabel.CENTER);         temp.setVerticalAlignment(JLabel.CENTER);         temp.setOpaque(true);         temp.setBackground(dateTitleColor);         temp.setForeground(dateTitleFontColor);         jlDays[0][i] = temp;      }      for (int i = 1; i < 7; i++)      {         for (int j = 0; j < 7; j++)         {            JLabel temp = new JLabel();            temp.setHorizontalAlignment(JLabel.CENTER);            temp.setVerticalAlignment(JLabel.CENTER);            temp.setOpaque(true);            temp.setForeground(dateFontColor);            jlDays[i][j] = temp;         }      }      String[] days = { "日", "一", "二", "三", "四", "五", "六" };      for (int i = 0; i < 7; i++)      {         jlDays[0][i].setText(days[i]);      }      jbChoose.setText("选择");      jbToday.setText("今日");      jbCancel.setText("取消");      changeDate();   }   /**    * 初始化显示年份范围    */   private void initYear()   {      jcbYear.removeAllItems();      for (int i = minYear; i <= maxYear; i++)      {         jcbYear.addItem(i + "年");      }   }   /**    * 添加组件    */   private void addComponent()   {      // 添加背部组件      JPanel north = new JPanel();      north.add(jbYearPre);      north.add(jbMonthPre);      north.add(jcbYear);      north.add(jcbMonth);      north.add(jbMonthNext);      north.add(jbYearNext);      this.add(north, "North");      // 添加中间组件      JPanel center = new JPanel(new GridLayout(7, 7));      for (int i = 0; i < 7; i++)      {         for (int j = 0; j < 7; j++)         {            center.add(jlDays[i][j]);         }      }      this.add(center);      // 添加南部组件      JPanel jpSouth = new JPanel();      jpSouth.add(jbChoose);      jpSouth.add(jbToday);      jpSouth.add(jbCancel);      this.add(jpSouth, "South");   }   /**    * 获得指定年指定月份的天数    *     * @param year    *           年份    * @param month    *           月份    * @return 天数    */   private int getDaysInMonth(int year, int month)   {      switch (month)      {      case 1:      case 3:      case 5:      case 7:      case 8:      case 10:      case 12:         return 31;      case 4:      case 6:      case 9:      case 11:         return 30;      case 2:         if (isLeapYear(year))         {            return 29;         }         return 28;      default:         return 0;      }   }   /**    * 清空日期    */   private void clearDate()   {      for (int i = 1; i < 7; i++)      {         for (int j = 0; j < 7; j++)         {            jlDays[i][j].setText("");         }      }   }   /**    * 更改日期    *     */   private void changeDate()   {      refreshLabelColor();      clearDate();      Calendar calendar = Calendar.getInstance();      calendar.set(year, month - 1, 1);      int day_in_week = calendar.get(Calendar.DAY_OF_WEEK);      int days = getDaysInMonth(year, month);      if (date > days)      {         date = 1;      }      int temp = 0;      for (int i = day_in_week - 1; i < 7; i++)      {         temp++;         jlDays[1][i].setText(temp + "");         if (temp == date)         {            jlDays[1][i].setBackground(selectColor);         }      }      for (int i = 2; i < 7; i++)      {         for (int j = 0; j < 7; j++)         {            temp++;            if (temp > days)            {               return;            }            jlDays[i][j].setText(temp + "");            if (temp == date)            {               jlDays[i][j].setBackground(selectColor);            }         }      }   }   /**    * 添加监听    */   private void addListener()   {      LabelMouseListener labelMouseListener = new LabelMouseListener();      for (int i = 1; i < 7; i++)      {         for (int j = 0; j < 7; j++)         {            jlDays[i][j].addMouseListener(labelMouseListener);         }      }      ButtonActionListener buttonActionListener = new ButtonActionListener();      jbYearPre.addActionListener(buttonActionListener);      jbYearNext.addActionListener(buttonActionListener);      jbMonthPre.addActionListener(buttonActionListener);      jbMonthNext.addActionListener(buttonActionListener);      jbChoose.addActionListener(buttonActionListener);      jbToday.addActionListener(buttonActionListener);      jbCancel.addActionListener(buttonActionListener);      ComboBoxItemListener comboBoxItemListener = new ComboBoxItemListener();      jcbYear.addItemListener(comboBoxItemListener);      jcbMonth.addItemListener(comboBoxItemListener);   }   /**    * 解析年份或月份    *     * @param yearOrMonth    *           年份或月份字符串    * @return 年份或月份    */   private int parseYearOrMonth(String yearOrMonth)   {      return Integer.parseInt(yearOrMonth.substring(0, yearOrMonth.length() - 1));   }   /**    * 判断是否为闰年    *     * @param year    *           年份    * @return true 闰年<br/>    *         false 平年    */   private boolean isLeapYear(int year)   {      return (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);   }   /**    * 设置对话框属性    */   private void setDialogAttribute()   {      this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);      this.setSize(400, 300);      this.setLocationRelativeTo(null);      // 显示为模态对话框      this.setModal(true);      this.setTitle("日期选择器");      this.setIconImage((new ImageIcon(this.getClass().getResource("/calendar.png"))).getImage());   }   /**    * 刷新日期标签背景颜色    */   private void refreshLabelColor()   {      for (int i = 1; i < 7; i++)      {         for (int j = 0; j < 7; j++)         {            jlDays[i][j].setBackground(dateColor);         }      }   }   /**    * 获得显示最小年份    *     * @return 显示最小年份    */   public int getMinYear()   {      return minYear;   }   /**    * 获得显示最大年份    *     * @return 显示最大年份    */   public int getMaxYear()   {      return maxYear;   }   /**    * 设置显示最小年份和最大年份(1900-9999)    *     * @param minYear    *           最小年份    * @param maxYear    *           最大年份    */   public void setMinAndMaxYear(int minYear, int maxYear)   {      if (minYear > maxYear || minYear < 1900 || maxYear > 9999)      {         return;      }      this.minYear = minYear;      this.maxYear = maxYear;      initYear();   }   /**    * 获得选中背景颜色    *     * @return 选中背景颜色    */   public Color getSelectColor()   {      return selectColor;   }   /**    * 设置选中背景颜色    *     * @param selectColor    *           选中背景颜色    */   public void setSelectColor(Color selectColor)   {      this.selectColor = selectColor;   }   /**    * 获得日期背景颜色    *     * @return 日期背景颜色    */   public Color getDateColor()   {      return dateColor;   }   /**    * 设置日期背景颜色    *     * @param dateColor    *           日期背景颜色    */   public void setDateColor(Color dateColor)   {      this.dateColor = dateColor;   }   /**    * 获得日期鼠标进入背景颜色    *     * @return 日期鼠标进入背景颜色    */   public Color getDetaHoverColor()   {      return dateHoverColor;   }   /**    * 设置日期鼠标进入背景颜色    *     * @param dateHoverColor    *           日期鼠标进入背景颜色    */   public void setDateHoverColor(Color dateHoverColor)   {      this.dateHoverColor = dateHoverColor;   }   /**    * 获得日期标题背景颜色    *     * @return 日期标题背景颜色    */   public Color getDateTitleColor()   {      return dateTitleColor;   }   /**    * 设置日期标题背景颜色    *     * @param dateTitleColor    *           日期标题背景颜色    */   public void setDateTitleColor(Color dateTitleColor)   {      this.dateTitleColor = dateTitleColor;   }   /**    * 获得日期标题字体颜色    *     * @return 日期标题字体颜色    */   public Color getDateTitleFontColor()   {      return dateTitleFontColor;   }   /**    * 设置日期标题字体颜色    *     * @param dateTitleFontColor    *           日期标题字体颜色    */   public void setDateTitleFontColor(Color dateTitleFontColor)   {      this.dateTitleFontColor = dateTitleFontColor;   }   /**    * 获得日期字体颜色    *     * @return 日期字体颜色    */   public Color getDateFontColor()   {      return dateFontColor;   }   /**    * 设置日期字体颜色    *     * @param dateFontColor    *           日期字体颜色    */   public void setDateFontColor(Color dateFontColor)   {      this.dateFontColor = dateFontColor;   }   /**    * 获得选择年份    *     * @return 选择年份    */   public int getYear()   {      return year;   }   /**    * 获得选中月份    *     * @return 选中月份    */   public int getMonth()   {      return month;   }   /**    * 获得选中天为当月第几天    *     * @return 选中天为当月第几天    */   public int getDate()   {      return date;   }   /**    * 获得选中天为一周中第几天    *     * @return 选中天为一周中第几天    */   public int getDayOfWeek()   {      return getCalendar().get(Calendar.DAY_OF_WEEK);   }   /**    * 获得选中天为一年中第几天    *     * @return 选中天为一年中第几天    */   public int getDayOfYear()   {      return getCalendar().get(Calendar.DAY_OF_YEAR);   }   /**    * 获得日期对象    *     * @return 日期对象    */   public Date getDateObject()   {      return getCalendar().getTime();   }   /**    * 获得以指定规则格式化的日期字符串    *     * @param format    *           格式化规则    * @return 日期字符串    */   public String getDateFormat(String format)   {      return new SimpleDateFormat(format).format(getDateObject());   }   /**    * 获得Calendar对象    *     * @return Calendar对象    */   private Calendar getCalendar()   {      Calendar calendar = Calendar.getInstance();      calendar.set(year, month - 1, date);      return calendar;   }   /**    * 标签鼠标监听    *     * @author jianggujin    *     */   final class LabelMouseListener extends MouseAdapter   {      @Override      public void mouseClicked(MouseEvent e)      {         JLabel temp = (JLabel) e.getSource();         if (!temp.getText().equals(""))         {            int date = Integer.parseInt(temp.getText());            {               if (date != JDateChooser.this.date)               {                  JDateChooser.this.date = date;                  refreshLabelColor();                  temp.setBackground(selectColor);               }            }         }      }      @Override      public void mouseEntered(MouseEvent e)      {         JLabel temp = (JLabel) e.getSource();         if (!temp.getText().equals(""))         {            temp.setBackground(dateHoverColor);         }      }      @Override      public void mouseExited(MouseEvent e)      {         JLabel temp = (JLabel) e.getSource();         if (!temp.getText().equals(""))         {            if (Integer.parseInt(temp.getText()) != date)            {               temp.setBackground(dateColor);            }            else            {               temp.setBackground(selectColor);            }         }      }   }   /**    * 按钮动作监听    *     * @author jianggujin    *     */   final class ButtonActionListener implements ActionListener   {      public void actionPerformed(ActionEvent e)      {         if (e.getSource() == jbYearPre)         {            int select = jcbYear.getSelectedIndex();            if (select > 0)            {               jcbYear.setSelectedIndex(select - 1);            }         }         else if (e.getSource() == jbYearNext)         {            int select = jcbYear.getSelectedIndex();            if (select < jcbYear.getItemCount() - 1)            {               jcbYear.setSelectedIndex(select + 1);            }         }         else if (e.getSource() == jbMonthPre)         {            int select = jcbMonth.getSelectedIndex();            if (select > 0)            {               jcbMonth.setSelectedIndex(select - 1);            }         }         else if (e.getSource() == jbMonthNext)         {            int select = jcbMonth.getSelectedIndex();            if (select < jcbMonth.getItemCount() - 1)            {               jcbMonth.setSelectedIndex(select + 1);            }         }         else if (e.getSource() == jbChoose)         {            flag = true;            closeDateChooser();         }         else if (e.getSource() == jbToday)         {            flag = true;            Calendar calendar = Calendar.getInstance();            year = calendar.get(Calendar.YEAR);            month = calendar.get(Calendar.MONTH) + 1;            date = calendar.get(Calendar.DATE);            closeDateChooser();         }         else if (e.getSource() == jbCancel)         {            flag = false;            closeDateChooser();         }      }   }   /**    * 下拉选择框项改变监听    *     * @author jianggujin    *     */   final class ComboBoxItemListener implements ItemListener   {      public void itemStateChanged(ItemEvent e)      {         if (e.getSource() == jcbYear)         {            int year = parseYearOrMonth(jcbYear.getSelectedItem().toString());            if (year != JDateChooser.this.year)            {               JDateChooser.this.year = year;               changeDate();            }         }         else if (e.getSource() == jcbMonth)         {            int month = parseYearOrMonth(jcbMonth.getSelectedItem().toString());            if (month != JDateChooser.this.month)            {               JDateChooser.this.month = month;               changeDate();            }         }      }   }}
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