计算月份差工具类

package file;

import java.sql.Timestamp;

public class timeUtil {
	public static void main(String[] args) {
		String time1="2000-02-29 01:12:12";
		String time2="2000-03-30 12:12:12";
		Timestamp a=Timestamp.valueOf(time1);
		Timestamp b=Timestamp.valueOf(time2);
		System.out.println(a+"||"+b);
		int y1=a.getYear()+1900; int m1=a.getMonth()+1; int d1=a.getDate();
		int y2=b.getYear()+1900; int m2=b.getMonth()+1; int d2=b.getDate();
		System.out.println(y1+"-"+m1+"-"+d1);
		System.out.println(y2+"-"+m2+"-"+d2);
		int month=(y2-y1)*12+m2-m1;
		if(m1==2&&m2!=2){
			if(d2>d1){
				month=month+1;
			}
		}if(m1!=2&&m2==2){
			if(d2>d1){
				month=month+1;
			}
		}else if((m2==1||m2==3||m2==5||m2==7||m2==8||m2==10||m2==12)&&(m1==2||m1==4||m1==6||m1==9||m1==11)){
			//计算闰年29天
			if(m1==2&&((y1%4==0&&y1%100!=0)||y1%400==0)){
				if (d2==29||d2==30||d2==31||d1==29){
				}else{
						month=month+1;
				}
			}else{
				if (d2==29||d2==30||d2==31||d1==28){
					
				}else{
						month=month+1;
				}
			}
		}else if((m1==1||m1==3||m1==5||m1==7||m1==8||m1==10||m1==12)&&(m2==4||m2==6||m2==9||m2==11)){
			if(d2>d1){
				month=month+1;
			}
		}
		System.out.println(month);
	}
}