最近做一个项目，有一个时间选择控件，里面的时间需要合理化设置。
比如，最多支持 今天，明天。
上班的合理时间为 0 - 11点
下班的合理时间为12 - 23 点
根据系统所处时间 AM 或者 PM ，判断 上班的话只好约到明天，因为处于PM没有办法再约上班的了。
另外顾客下单的时间应该比系统时间多出半个小时的缓冲时间。分钟只能选 00,10,20,30,40,50 这些段。
估计大家看到还是不明白，因为的确业务逻辑有点复杂的。可以参考 人人拼车 ，天天用车应用约车时的时间选择控件
逻辑代码如下，其实主要是自己做个记录：
/**
* 计算
* 假设 1. 系统时间精确
* 2. 最小预约时间为标准时间+缓冲时间
* @author lq
*
*/
public class Duty {
public static int INT_DUTY = 1 ;
public static int BUFFER_TIME = 30 ;
public static String STR_AM = "AM";
public static String STR_PM = "PM";
public static String STR_TODAY = "今天";
public static String STR_TOMORROW = "明天";
public static int INT_DUTTY_LIMIT_NOON = 12;
public static int INT_DUTTY_LIMIT_DAWN = 24;
public static void main(String[] args) {
//测试
String[] legalDay = dutyLegalDay(INT_DUTY);
if(INT_DUTY==0){
System.out.println("预约上班");
}else{
System.out.println("预约下班");
}
for (int i = 0; i < legalDay.length; i++) {
System.out.println("legal day : "+legalDay[i]);
String[] dutyLegalHour = dutyLegalHour(INT_DUTY,legalDay[i]);
for (int j = 0; j < dutyLegalHour.length; j++) {
System.out.println("legal Hour : "+dutyLegalHour[j]);
String[] dutyLegalMinute = dutyLegalMinute(INT_DUTY, legalDay[i], dutyLegalHour[j]);
for (int k = 0; k < dutyLegalMinute.length; k++) {
System.out.println("legal Minute : "+dutyLegalMinute[k]);
}
}
}
}
/**
* 计算天
* @param interval
* @param curTime
* @param minTime
* @param duty 0 代表上班 1代表下班
*/
public static String[] dutyLegalDay(int duty){
LinkedList<String> listDay = new LinkedList<String>();
String[] arrayLegalDay = null ;
int[] array = getMinHourMinute();
if(duty==0){ //上班
if(STR_AM.endsWith(JudgeAMPM()) && array[0] < INT_DUTTY_LIMIT_NOON) // 预约上班合理性 1. 现在时间是上午 2. 合理最小时间 应该为小时小于12 ,若是PM 则仅可以预约明天的
{
listDay.add(STR_TODAY+getWeek(getTodayDate()));
}
}else{//下班
if(array[0] < INT_DUTTY_LIMIT_DAWN) // 合理最小时间 应该为小时小于23,时间区间是 12 - 23 ,若是PM 则仅可以预约明天的
{
listDay.add(STR_TODAY+getWeek(getTodayDate()));
}
}
listDay.add(STR_TOMORROW+getWeek(getTomorrowDate()));
arrayLegalDay = new String[listDay.size()] ;
listDay.toArray(arrayLegalDay);
// for (int i = 0; i < arrayLegalDay.length; i++) {
// System.out.println("legal Day : "+listDay.get(i));
// }
return arrayLegalDay ;
}
/**
* 计算上班合法小时
*
*/
public static String[] dutyLegalHour(int duty,String day){
LinkedList<String> listHour = new LinkedList<String>();
String[] arrayLegalHour = null ;
int[] array = getMinHourMinute();
if(duty==0){ //上班
//传递过来 今天 or 明天
if(day.contains(STR_TODAY) && array[0] < INT_DUTTY_LIMIT_NOON){//时间区间是 0 -11
//合法的
}else{
//明天的，或者超过12的，都归为明天，
array[0] = 0 ;
}
for (int i = array[0]; i <= 11; i++) {
listHour.add(i+"");
}
}else{ //下班
//传递过来 今天 or 明天
if(day.contains(STR_TODAY) && array[0] < INT_DUTTY_LIMIT_DAWN){//时间区间是 12 -23
if(array[0] < INT_DUTTY_LIMIT_NOON){
array[0] = INT_DUTTY_LIMIT_NOON ;
}
}else{
//明天的，或者超过23的，都归为明天，
array[0] = INT_DUTTY_LIMIT_NOON ;
}
for (int i = array[0]; i <= 23; i++) {
listHour.add(i+"");
}
}
arrayLegalHour = new String[listHour.size()] ;
listHour.toArray(arrayLegalHour);
// for (int i = 0; i < listHour.size(); i++) {
// System.out.println("legal Hour : "+listHour.get(i));
// }
return arrayLegalHour ;
}
/**
* 计算合法的分
* @param minute
* @return
*/
public static String[] dutyLegalMinute(int duty ,String day,String hour){
LinkedList<String> listMinute= new LinkedList<String>();
String[] arrayLegalMinute =null;
int[] array = getMinHourMinute();
if(duty==0){
if(day.contains(STR_TODAY)){
if(Integer.parseInt(hour) > array[0]){
array[1] = 0 ;
}
}else{
array[1] = 0 ;
}
for (int i = array[1]; i <= 5; i++) {
listMinute.add(i+"0");
}
}else{
if(day.contains(STR_TODAY)){
if(Integer.parseInt(hour) > array[0]){
array[1] = 0 ;
}
}else{
array[1] = 0 ;
}
for (int i = array[1]; i <= 5; i++) {
listMinute.add(i+"0");
}
}
arrayLegalMinute = new String[listMinute.size()] ;
listMinute.toArray(arrayLegalMinute);
// for (int i = 0; i < listMinute.size(); i++) {
// System.out.println("legal Minute : "+listMinute.get(i));
// }
return arrayLegalMinute;
}
/**
* 通用方法，得到最小小时 和分钟
* 计算合理的天、时、分 都需要用
* 返回结果 array[0] 最小时
* array[1] 最小十分位
*/
public static int[] getMinHourMinute(){
int[] array = new int[2] ;
Date minTime = getLegalTime(BUFFER_TIME);
//最大值为 yyyy-MM-dd 11:20 因为 11:20 + buffer_time = 11： 50
int minHour = minTime.getHours();
int minMinute = minTime.getMinutes();
String strMinute = "";
if(minMinute<10){
strMinute = "0"+minMinute;
}else{
strMinute = ""+minMinute;
}
int[] arraytemp = splitDoubleDigit(strMinute);
//array[0] 十位 array[1]个位
if(arraytemp[1]>0){////只要个位大于0 ，都要十位进位，例如 52 要进成 60 ， 31进位成 40
arraytemp[0] = arraytemp[0] + 1;
if(arraytemp[0] == 6){//是6,则小时+1 , 分钟的个位，十位归为0
minHour = minHour + 1 ;
arraytemp[0] = 0 ;
arraytemp[1] = 0 ;
}
}
array[0] = minHour ;
array[1] = arraytemp[0];
return array ;
}
/**
* 获得合法时间
* @param minute
* @return
*/
public static Date getLegalTime(int minute){
Date date = new Date();
Calendar c = Calendar.getInstance();
c.setTime(date);
c.add(Calendar.MINUTE, minute);
Date time = c.getTime();
return time;
}
/**
* 判断当前是上午还是下午
*
* @return
*/
public static String JudgeAMPM(){
String ret = null ;
GregorianCalendar calendar = new GregorianCalendar();
int val = calendar.get(GregorianCalendar.AM_PM) ;
if(0==val){
ret = STR_AM ;
}else{
ret = STR_PM ;
}
return ret ;
}
/**
* 拆分两位数 例如 54 拆分为 5 , 4
* @param num
* @return
*/
public static int[] splitDoubleDigit(String num){
int[] resArray = new int[(num).length()];
int number = Integer.parseInt(num);
for(int i = resArray.length-1;i>=0;i--){
resArray[i] = number%10;
number /= 10;
}
/*for(int i:resArray){
System.out.println(i);
}*/
return resArray;
}
//根据日期取得星期几
public static String getWeek(String date){
Date temp = getDateByStr2(date);
SimpleDateFormat sdf = new SimpleDateFormat("EEEE");
String week = sdf.format(temp);
return week;
}
/**
* yyyy-MM-dd 转换成date数据
* @param dd
* @return
*/
public static Date getDateByStr2(String dd)
{
SimpleDateFormat sd = new SimpleDateFormat("yyyy-MM-dd");
Date date;
try {
date = sd.parse(dd);
} catch (ParseException e) {
date = null;
e.printStackTrace();
}
return date;
}
/**
* 获取今天日期
* @return
*/
public static String getTodayDate(){
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");//设置日期格式
return df.format(new Date());
}
/**
* 获取明天日期
* 可以扩展
* @return
*/
public static String getTomorrowDate(){
Date date=new Date();//取时间
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
calendar.add(calendar.DATE,1);//把日期往后增加一天.整数往后推,负数往前移动
date=calendar.getTime();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
String dateString = formatter.format(date);
return dateString;
}
}上班：
预约上班 legal day : 明天星期六 legal Hour : 0 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 1 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 2 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 3 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 4 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 5 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 6 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 7 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 8 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 9 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 10 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 11 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50
预约下班 legal day : 今天星期五 legal Hour : 15 legal Minute : 50 legal Hour : 16 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 17 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 18 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 19 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 20 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 21 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 22 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 23 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal day : 明天星期六 legal Hour : 12 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 13 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 14 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 15 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 16 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 17 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 18 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 19 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 20 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 21 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 22 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50 legal Hour : 23 legal Minute : 00 legal Minute : 10 legal Minute : 20 legal Minute : 30 legal Minute : 40 legal Minute : 50
原文地址：http://blog.csdn.net/xxxiu/article/details/43056281
