Java获取当前时间并转化成字符串

package com.happy.sqlite.test;

import java.util.Calendar;

public class LostTime2 {
    public static void main(String[] args) {
        long now = System.currentTimeMillis(); // 排序前取得当前时间
        Calendar c = Calendar.getInstance();
        c.setTimeInMillis(now);

        System.out.println("当前时间: " + c.get(Calendar.YEAR) + "年 "
                + (c.get(Calendar.MONTH) + 1) + "月 " + c.get(Calendar.DATE)
                + "日  周" + (c.get(Calendar.DAY_OF_WEEK) - 1) + "  "
                + c.get(Calendar.HOUR) + "时 " + c.get(Calendar.MINUTE) + "分 "
                + c.get(Calendar.SECOND) + "秒 " + c.get(Calendar.MILLISECOND)
                + " 微秒");
    }
}