日期格式化工具DateFormatUtil

======================================================Date格式化工具类：

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

public class DateFormatUtil {
    
    public static final String DATE_PATTERN_yyyyMMddHHmmssSSS = "yyyyMMddHHmmssSSS";
    public static final String DATE_PATTERN_yyyyMMddHHmmss = "yyyyMMddHHmmss";
    public static final String DATE_PATTERN_yyyyMMdd_HHmmss = "yyyy-MM-dd HH:mm:ss";
    public static final String DATE_PATTERN_yyyyMMdd = "yyyyMMdd";
    public static final String DATE_PATTERN_yyyy_MM_dd = "yyyy-MM-dd";
    public static final String DATE_PATTERN_yyyy_MM_dd2 = "yyyy/MM/dd";
    public static final String DATE_PATTERN_yyyy_MM_dd3 = "yyyy年MM月dd日";
    public static final String TIME_PATTERN_hhmmss = "hhmmss";
    
    public static String formatCurDate(String pattern){
        return formatDate(new Date(), pattern);
    }
    
    public static String formatDate(Date inputDate, String pattern){
        SimpleDateFormat formatUtil = new SimpleDateFormat(pattern);
        return formatUtil.format(inputDate);
    }
}

 

======================================================Date格式化工具测试类：

    /**
     * 格式化输入日期
     */
    @Test
    public void test_formatDate() {
        Date curDate = new Date();
        String formatInputDate = DateFormatUtil.formatDate(curDate, DateFormatUtil.DATE_PATTERN_yyyyMMdd_HHmmss);
        System.out.println(formatInputDate);
    }
    
    /**
     * 格式化当前日期
     */
    @Test
    public void test_formatCurDate() {
        String formatCurDate = DateFormatUtil.formatCurDate(DateFormatUtil.DATE_PATTERN_yyyyMMdd_HHmmss);
        System.out.println(formatCurDate);
    }