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Smart Framework is a lightweight Java Web Framework

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package org.smart4j.framework.util;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 日期操作工具类
 *
 * @author huangyong
 * @since 1.0
 */
public class DateUtil {

    private static final Logger logger = LoggerFactory.getLogger(DateUtil.class);

    private static final SimpleDateFormat datetimeFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    private static final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
    private static final SimpleDateFormat timeFormat = new SimpleDateFormat("HH:mm:ss");

    /**
     * 格式化日期与时间
     */
    public static String formatDatetime(long timestamp) {
        return datetimeFormat.format(new Date(timestamp));
    }

    /**
     * 格式化日期
     */
    public static String formatDate(long timestamp) {
        return dateFormat.format(new Date(timestamp));
    }

    /**
     * 格式化时间
     */
    public static String formatTime(long timestamp) {
        return timeFormat.format(new Date(timestamp));
    }

    /**
     * 获取当前日期与时间
     */
    public static String getCurrentDatetime() {
        return datetimeFormat.format(new Date());
    }

    /**
     * 获取当前日期
     */
    public static String getCurrentDate() {
        return dateFormat.format(new Date());
    }

    /**
     * 获取当前时间
     */
    public static String getCurrentTime() {
        return timeFormat.format(new Date());
    }

    /**
     * 解析日期与时间
     */
    public static Date parseDatetime(String str) {
        Date date = null;
        try {
            date = datetimeFormat.parse(str);
        } catch (ParseException e) {
            logger.error("解析日期字符串出错！格式：yyyy-MM-dd HH:mm:ss", e);
        }
        return date;
    }

    /**
     * 解析日期
     */
    public static Date parseDate(String str) {
        Date date = null;
        try {
            date = dateFormat.parse(str);
        } catch (ParseException e) {
            logger.error("解析日期字符串出错！格式：yyyy-MM-dd", e);
        }
        return date;
    }

    /**
     * 解析时间
     */
    public static Date parseTime(String str) {
        Date date = null;
        try {
            date = timeFormat.parse(str);
        } catch (ParseException e) {
            logger.error("解析日期字符串出错！格式：HH:mm:ss", e);
        }
        return date;
    }
}