Java工具类-格式化日期

package common;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

public class DealTime {
    private Date time;
    private String strtime;
    private SimpleDateFormat format;
    public DealTime(){
        strtime = "";
        format = null;
    }
    /**
     转换日期为"yyyy-MM-dd"格式输出
     */
    public String getYMD(){
        time = new Date();
        format = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault());
        strtime = format.format(time);
        return strtime;
    }

}