toolutil.java

基于J2EE的办公自动化系统。实现流程定义流程办理等。运用了hibernate+struts+spring框架综合运用的系统。

package com.oa.util;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

public class ToolUtil {
	public static String getDate(){
		
		Date date = new Date();
		DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		String d =df.format(date);
		return d;
	}
	
	public static String getNowDate(){   
		Date date = new Date();
		
		String SIMPLE_DATE_FORMAT = "yyyy-MM-dd HH:mm";  
	    
		SimpleDateFormat simpleDateFormat;   
		  
		simpleDateFormat = new SimpleDateFormat(SIMPLE_DATE_FORMAT); 
		
		simpleDateFormat.setTimeZone(TimeZone.getTimeZone("GMT+8:00"));
		
	    return null==date?null:simpleDateFormat.format(date);   
	}   
	
	public static int parseInt(String str){
		int result =0;
		try {
			result = Integer.parseInt(str);
		} catch (Exception e) {
			result =0;
		}
		return result;
	}
	
	public static String plusTime(String datehm, int mm) {
		//拆分日期和时间，存入长度为2的字符串数组
		String[] dt = datehm.split(" ");
		
		//拆分年、月、日，存入长度为3的字符串数组
		String[] ymd = dt[0].split("-");
		int year = ToolUtil.parseInt(ymd[0]);
		int month = ToolUtil.parseInt(ymd[1]);
		int day = ToolUtil.parseInt(ymd[2]);
		//拆分小时和分钟，存入长度为2的字符串数组
		String[] hm = dt[1].split(":");
		int maxday = 0;//当月最大天数
		String number = "01,03,05,07,08,10,12";//大月31天
		String[] nums = number.split(",");
		for (int i = 0; i < nums.length; i++) {
			if(ymd[1].equals(nums[i])){
				maxday = 31;
				break;
			}
		}
		String number1 = "04,06,09,11";//小月30天
		String[] nums1 = number1.split(",");
		for (int i = 0; i < nums1.length; i++) {
			if(ymd[1].equals(nums1[i])){
				maxday = 30;
				break;
			}
		}
		if( year%400==0 || (year%4==0 && year%100!=0)){//判断闰年
			if(month==2){
				maxday = 28;
			}
		}else{
			if(month==2){
				maxday = 29;
			}
		}
		int hour = ToolUtil.parseInt(hm[0]);
		int minute = ToolUtil.parseInt(hm[1]);
		
		minute = minute + mm;
		
		if(minute>=60){//相加后分钟是否超过最大分钟
			minute = minute - 60;
			hour = hour+1;
		}
		if(hour>=24){//相加后时钟是否超过最大时钟
			hour = hour - 24;
			day = day+1;
		}
		if(day>maxday){//相加后日期是否超过当月最大天数
			day = day - maxday;
			month = month+1;
		}
		if(month>12){//相加后月份是否超过最大月数
			month = month - 12;
			year = year + 1;
		}
		String newdate = year+"-";
		if(month<10){
			newdate+= "0"+month+"-";
		}else{
			newdate+= month+"-";
		}
		if(day<10){
			newdate+= "0"+day;
		}else{
			newdate+= day;
		}
			
		if(hour<10){
			newdate+= " 0"+hour+":";
		}else{
			newdate+= " "+hour+":";
		}
		if(minute<10){
			newdate+= "0"+minute;
		}else{
			newdate+= minute;
		}
		return newdate;
	}
}