js日曆程序（原生js寫日曆）

本文目錄一覽：

• 1、JS中寫日曆時候遇見的問題
• 2、PC端如何用js做點擊日曆選中一周
• 3、js編寫一個顯示程序運行當天到下一個元旦之間的天數。
• 4、日曆用js如何實現
• 5、關於用JAVASCRIPT做日曆的問題！

JS中寫日曆時候遇見的問題

問題解決不了，我這裡有JAVA版的！

import java.awt.*;

import java.awt.event.*;

import java.util.*;

import javax.swing.*;

import javax.swing.event.*;

import javax.swing.table.*;

public class MyCalendar extends JApplet {

private static final long serialVersionUID = 4398452463891616204L;

public static final String WEEK_SUN = “SUN”;

public static final String WEEK_MON = “MON”;

public static final String WEEK_TUE = “TUE”;

public static final String WEEK_WED = “WED”;

public static final String WEEK_THU = “THU”;

public static final String WEEK_FRI = “FRI”;

public static final String WEEK_SAT = “SAT”;

public static final Color background = Color.white;

public static final Color foreground = Color.black;

public static final Color headerBackground = Color.blue;

public static final Color headerForeground = Color.white;

public static final Color selectedBackground = Color.blue;

public static final Color selectedForeground = Color.white;

private JPanel cPane;

private JLabel yearsLabel;

private JSpinner yearsSpinner;

private JLabel monthsLabel;

private JComboBox monthsComboBox;

private JTable daysTable;

private AbstractTableModel daysModel;

private Calendar calendar;

public MyCalendar() {

cPane = (JPanel) getContentPane();

}

public void init() {

cPane.setLayout(new BorderLayout());

calendar = Calendar.getInstance();

//calendar = Calendar.getInstance();

yearsLabel = new JLabel(“Year: “);

yearsSpinner = new JSpinner();

yearsSpinner.setEditor(new JSpinner.NumberEditor(yearsSpinner, “0000”));

yearsSpinner.setValue(new Integer(calendar.get(Calendar.YEAR)));

yearsSpinner.addChangeListener(new ChangeListener() {

public void stateChanged(ChangeEvent changeEvent) {

int day = calendar.get(Calendar.DAY_OF_MONTH);

calendar.set(Calendar.DAY_OF_MONTH, 1);

calendar.set(Calendar.YEAR, ((Integer) yearsSpinner.getValue()).intValue());

int maxDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);

calendar.set(Calendar.DAY_OF_MONTH, day maxDay ? maxDay : day);

updateView();

}

});

JPanel yearMonthPanel = new JPanel();

cPane.add(yearMonthPanel, BorderLayout.NORTH);

yearMonthPanel.setLayout(new BorderLayout());

yearMonthPanel.add(new JPanel(), BorderLayout.CENTER);

JPanel yearPanel = new JPanel();

yearMonthPanel.add(yearPanel, BorderLayout.WEST);

yearPanel.setLayout(new BorderLayout());

yearPanel.add(yearsLabel, BorderLayout.WEST);

yearPanel.add(yearsSpinner, BorderLayout.CENTER);

monthsLabel = new JLabel(“Month: “);

monthsComboBox = new JComboBox();

for (int i = 1; i = 12; i++) {

monthsComboBox.addItem(new Integer(i));

}

monthsComboBox.setSelectedIndex(calendar.get(Calendar.MONTH));

monthsComboBox.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent actionEvent) {

int day = calendar.get(Calendar.DAY_OF_MONTH);

calendar.set(Calendar.DAY_OF_MONTH, 1);

calendar.set(Calendar.MONTH, monthsComboBox.getSelectedIndex());

int maxDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);

calendar.set(Calendar.DAY_OF_MONTH, day maxDay ? maxDay : day);

updateView();

}

});

JPanel monthPanel = new JPanel();

yearMonthPanel.add(monthPanel, BorderLayout.EAST);

monthPanel.setLayout(new BorderLayout());

monthPanel.add(monthsLabel, BorderLayout.WEST);

monthPanel.add(monthsComboBox, BorderLayout.CENTER);

daysModel = new AbstractTableModel() {

private static final long serialVersionUID = -5996965100536784508L;

public int getRowCount() {

return 7;

}

public int getColumnCount() {

return 7;

}

public Object getValueAt(int row, int column) {

if (row == 0) {

return getHeader(column);

}

row–;

Calendar calendar = (Calendar) MyCalendar.this.calendar.clone();

calendar.set(Calendar.DAY_OF_MONTH, 1);

int dayCount = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);

int moreDayCount = calendar.get(Calendar.DAY_OF_WEEK) – 1;

int index = row * 7 + column;

int dayIndex = index – moreDayCount + 1;

if (index moreDayCount || dayIndex dayCount) {

return null;

} else {

return new Integer(dayIndex);

}

}

};

daysTable = new CalendarTable(daysModel, calendar);

daysTable.setCellSelectionEnabled(true);

daysTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

daysTable.setDefaultRenderer(daysTable.getColumnClass(0), new TableCellRenderer() {

public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,

boolean hasFocus, int row, int column) {

String text = (value == null) ? “” : value.toString();

JLabel cell = new JLabel(text);

cell.setOpaque(true);

if (row == 0) {

cell.setForeground(headerForeground);

cell.setBackground(headerBackground);

} else {

if (isSelected) {

cell.setForeground(selectedForeground);

cell.setBackground(selectedBackground);

} else {

cell.setForeground(foreground);

cell.setBackground(background);

}

}

return cell;

}

});

updateView();

cPane.add(daysTable, BorderLayout.CENTER);

}

public static String getHeader(int index) {

switch (index) {

case 0:

return WEEK_SUN;

case 1:

return WEEK_MON;

case 2:

return WEEK_TUE;

case 3:

return WEEK_WED;

case 4:

return WEEK_THU;

case 5:

return WEEK_FRI;

case 6:

return WEEK_SAT;

default:

return null;

}

}

public void updateView() {

daysModel.fireTableDataChanged();

daysTable.setRowSelectionInterval(calendar.get(Calendar.WEEK_OF_MONTH),

calendar.get(Calendar.WEEK_OF_MONTH));

daysTable.setColumnSelectionInterval(calendar.get(Calendar.DAY_OF_WEEK) – 1,

calendar.get(Calendar.DAY_OF_WEEK) – 1);

}

public static class CalendarTable extends JTable {

private static final long serialVersionUID = 2808554667609229840L;

private Calendar calendar;

public CalendarTable(TableModel model, Calendar calendar) {

super(model);

this.calendar = calendar;

}

public void changeSelection(int row, int column, boolean toggle, boolean extend) {

super.changeSelection(row, column, toggle, extend);

if (row == 0) {

return;

}

Object obj = getValueAt(row, column);

if (obj != null) {

calendar.set(Calendar.DAY_OF_MONTH, ((Integer)obj).intValue());

}

}

}

@SuppressWarnings(“deprecation”)

public static void main(String[] args) {

JFrame frame = new JFrame(“Calendar Application”);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

MyCalendar myCalendar = new MyCalendar();

myCalendar.init();

frame.getContentPane().add(myCalendar);

frame.setSize(240, 172);

frame.show();

}

}

PC端如何用js做點擊日曆選中一周

1.寫一個獲取當前時間的腳本

2.寫一個獲取事件源絕對坐標的腳本

3.寫一個日曆生成腳本，根據年(閏年)月(大小月)周(周一到周日)生成日曆

4.當事件源(一般是文本框)獲得焦點的時候，觸發獲取絕對坐標的事件，然後生成當前月的日曆，將此日曆的坐標用腳本移動到文本框下方

5.生成日曆的時候，給所有日添加返回事件，把當前選中的年月日反饋

js編寫一個顯示程序運行當天到下一個元旦之間的天數。

下面小編就為大家帶來一篇js編寫當天簡單日曆效果【實現代碼】。小編覺得挺不錯的，現在分享給大家，也給大家做個參考

之前一直很想用javascript寫一個日曆，但是因為完全沒有好的思路， 所以遲遲沒有嘗試。最近在網上剛好看到用javascript編寫的簡單日曆的例子，代碼量雖然不大， 但是我覺得很好地闡述了js日曆的實現原理。自己也嘗試著做了一下，收穫蠻大，掌握了基本的實現原理後，再想增加更多的功能，完全就可以自由發揮了，先在這裡分享一下吧，有興趣的可以試試！

一.表格行數問題

既然要顯示日期表格的話，首先得知道這個表格有多少行多少列，列數是已經確定的，從星期天（日曆上第1列是星期天）到星期六一共7列。要解決行數問題之前，還得先知道這個月的第1天是星期幾，因為每個月的1號並不都是從日曆上的星期天開始排的，可能1號是星期五，星期六也說不定，所以1號的左邊部分，就得用空表格代替了。那麼用多少個空表格代替呢，這裡就得用到getDay()方法了，該方法返回數組[0-6]中的一個數字，0代表星期天，1代表星期一，2代表星期二，以此類推。所以如果一個月的1號是星期五的話，那麼剛好左邊需要5個空表格代替。然後，假如一個月有31天，最後求出的表格行數就是：

var tr_nums = Math.ceil((5 + 31)/7); 

當然，並不是每個月都是31天，所以我們得創建一個包含12個月份的數組，每個元素代表每個月份所包含的天數。但是2月份比較特殊，閏年的2月份有29天，平年的2月份只有28天。所以，在創建數組之前，得自己創建一個判斷閏年的函數:

//如果當前年份能被4整除但是不能被100整除或者能被400整除，即可確定為閏年，返回1，否則返回0

function isLeap(year) {

 return year % 4 == 0 ? (year % 100 != 0 ? 1 : (year % 400 == 0 ? 1 : 0)) : 0;

日曆用js如何實現

script src=”js/Calendar.js” type=”text/javascript” language=”javascript”/script

加入到你的頁面中 js/Calendar.js 這是控制項的路徑

input name=”txtDate” type=”text” onclick=”SelectDate(this)” readonly=”readonly”

Calendar.js 這個東西應該可以找的到吧，onclick=”SelectDate(this)” 這是調用的方法

關於用JAVASCRIPT做日曆的問題！

html

headmeta http-equiv=”Content-Type” content=”text/html; charset=gb2312″

title日期選擇 – BY ziyue/title

script language=”JavaScript” type=”text/JavaScript”

/*=======Calendar.js=======By Jiang Hongbin=======*/

var months = new Array(“一月”, “二月”, “三月”, “四月”, “五月”, “六月”, “七月”, “八月”, “九月”, “十月”, “十一月”, “十二月”);

var daysInMonth = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);

var days = new Array(“日”,”一”, “二”, “三”, “四”, “五”, “六”);

var today;

document.writeln(“div id=’Calendar’ style=’position:absolute; z-index:1; visibility: hidden; filter:\”progid:DXImageTransform.Microsoft.Shadow(direction=135,color=#999999,strength=3)\”‘/div”);

function getDays(month, year)

{

//下面的這段代碼是判斷當前是否是閏年的

if (1 == month)

return ((0 == year % 4) (0 != (year % 100))) || (0 == year % 400) ? 29 : 28;

else

return daysInMonth[month];

}

function getToday()

{

//得到今天的年,月,日

this.now = new Date();

this.year = this.now.getFullYear();

this.month = this.now.getMonth();

this.day = this.now.getDate();

}

function getStringDay(str)

{

//得到輸入框的年,月,日

var str=str.split(“-“)

this.now = new Date(parseFloat(str[0]),parseFloat(str[1])-1,parseFloat(str[2]));

this.year = this.now.getFullYear();

this.month = this.now.getMonth();

this.day = this.now.getDate();

}

function newCalendar() {

var parseYear = parseInt(document.all.Year.options[document.all.Year.selectedIndex].value);

var newCal = new Date(parseYear, document.all.Month.selectedIndex, 1);

var day = -1;

var startDay = newCal.getDay();

var daily = 0;

if ((today.year == newCal.getFullYear()) (today.month == newCal.getMonth()))

day = today.day;

var tableCal = document.all.calendar;

var intDaysInMonth =getDays(newCal.getMonth(), newCal.getFullYear());

for (var intWeek = 1; intWeek tableCal.rows.length;intWeek++)

for (var intDay = 0;intDay tableCal.rows[intWeek].cells.length;intDay++)

{

var cell = tableCal.rows[intWeek].cells[intDay];

if ((intDay == startDay) (0 == daily))

daily = 1;

if(day==daily) //今天，調用今天的Class

{

cell.style.background=’#6699CC’;

cell.style.color=’#FFFFFF’;

//cell.style.fontWeight=’bold’;

}

else if(intDay==6) //周六

cell.style.color=’green’;

else if (intDay==0) //周日

cell.style.color=’red’;

if ((daily 0) (daily = intDaysInMonth))

{

cell.innerText = daily;

daily++;

}

else

cell.innerText = “”;

}

}

function GetDate(InputBox)

{

var sDate;

//這段代碼處理滑鼠點擊的情況

if (event.srcElement.tagName == “TD”)

if (event.srcElement.innerText != “”)

{

sDate = document.all.Year.value + “-” + document.all.Month.value + “-” + event.srcElement.innerText;

eval(“document.all.”+InputBox).value=sDate;

HiddenCalendar();

}

}

function HiddenCalendar()

{

//關閉選擇窗口

document.all.Calendar.style.visibility=’hidden’;

}

function ShowCalendar(InputBox)

{

var x,y,intLoop,intWeeks,intDays;

var DivContent;

var year,month,day;

//var o=document.getElementById(InputBox);

var o=InputBox;

var oid=o.id;

var thisyear; //真正的今年年份

if(!oid)oid=o.name;

thisyear=new getToday();

thisyear=thisyear.year;

today = o.value;

if(isDate(today))

today = new getStringDay(today);

else

today = new getToday();

//顯示的位置

x=o.offsetLeft;

y=o.offsetTop;

while(o=o.offsetParent)

{

x+=o.offsetLeft;

y+=o.offsetTop;

}

document.all.Calendar.style.left=x+2;

document.all.Calendar.style.top=y+20;

document.all.Calendar.style.visibility=”visible”;

//下面開始輸出日曆表格(border-color:#9DBAF7)

DivContent=”table border=’0′ cellspacing=’0′ style=’border:1px solid #0066FF; background-color:#EDF2FC'”;

DivContent+=”tr”;

DivContent+=”td style=’border-bottom:1px solid #0066FF; background-color:#C7D8FA'”;

//年

DivContent+=”select name=’Year’ id=’Year’ onChange=’newCalendar()’ style=’font-family:Verdana; font-size:12px'”;

for (intLoop = thisyear – 100; intLoop (thisyear + 2); intLoop++)

DivContent+=”option value= ” + intLoop + ” ” + (today.year == intLoop ? “Selected” : “”) + “” + intLoop + “/option”;

DivContent+=”/select”;

//月

DivContent+=”select name=’Month’ id=’Month’ onChange=’newCalendar()’ style=’font-family:Verdana; font-size:12px'”;

for (intLoop = 0; intLoop months.length; intLoop++)

DivContent+=”option value= ” + (intLoop + 1) + ” ” + (today.month == intLoop ? “Selected” : “”) + “” + months[intLoop] + “/option”;

DivContent+=”/select”;

DivContent+=”/td”;

DivContent+=”td style=’border-bottom:1px solid #0066FF; background-color:#C7D8FA; font-weight:bold; font-family:Wingdings 2,Wingdings,Webdings; font-size:16px; padding-top:2px; color:#4477FF; cursor:hand’ align=’center’ title=’關閉’ onClick=’javascript:HiddenCalendar()’S/td”;

DivContent+=”/tr”;

DivContent+=”trtd align=’center’ colspan=’2′”;

DivContent+=”table id=’calendar’ border=’0′ width=’100%'”;

//星期

DivContent+=”tr”;

for (intLoop = 0; intLoop days.length; intLoop++)

DivContent+=”td align=’center’ style=’font-size:12px'” + days[intLoop] + “/td”;

DivContent+=”/tr”;

//天

for (intWeeks = 0; intWeeks 6; intWeeks++)

{

DivContent+=”tr”;

for (intDays = 0; intDays days.length; intDays++)

DivContent+=”td onClick=’GetDate(\”” + oid + “\”)’ style=’cursor:hand; border-right:1px solid #BBBBBB; border-bottom:1px solid #BBBBBB; color:#215DC6; font-family:Verdana; font-size:12px’ align=’center’/td”;

DivContent+=”/tr”;

}

DivContent+=”/table/td/tr/table”;

document.all.Calendar.innerHTML=DivContent;

newCalendar();

}

function isDate(dateStr)

{

var datePat = /^(\d{4})(\-)(\d{1,2})(\-)(\d{1,2})$/;

var matchArray = dateStr.match(datePat);

if (matchArray == null) return false;

var month = matchArray[3];

var day = matchArray[5];

var year = matchArray[1];

if (month 1 || month 12) return false;

if (day 1 || day 31) return false;

if ((month==4 || month==6 || month==9 || month==11) day==31) return false;

if (month == 2)

{

var isleap = (year % 4 == 0 (year % 100 != 0 || year % 400 == 0));

if (day 29 || (day==29 !isleap)) return false;

}

return true;

}

/script

style type=”text/css”

!–

td,input {

font-family: Verdana, Arial, Helvetica, sans-serif;

font-size: 12px;

}

—

/style

/head

body

form name=”form1″ method=”post” action=””

table width=”500″ border=”0″ align=”center” cellspacing=”1″ bgcolor=”#CCCCCC”

tr bgcolor=”#FFFFFF”

td align=”right”您的生日：/td

tdinput name=”birthday” type=”text” id=”birthday” title=”點擊選擇” onClick=”javascript:ShowCalendar(this)” size=”20″

input type=”button” name=”Submit” value=”選 擇” onClick=”javascript:ShowCalendar(form1.birthday)”/td

tdBLOG:a href=””;/a/td

/tr

/table

/form

/body

/html