Java中Date对象与String互转

package com.java.test;

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

public class DateStringTransfrom {

    public static void main(String[] args) {
        stringTransfromDateOne();
        //stringTransformDateTwo();
        //DateTransformStringOne();
        //DateTransformStringTwo();
    }

    // yyyy-MM-dd HH:mm:ss格式的字符串转换为Date对象
    static void stringTransfromDateOne() {
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date date = null;
        try {
            date = dateFormat.parse("2010-10-01 12:00:00");
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        System.out.println("date object: " + date);
    }

    // yyyy-MM-dd格式的字符串转换为Date对象
    static void stringTransformDateTwo() {
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        Date date = null;
        try {
            date = dateFormat.parse("2010-10-01");
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        System.out.println("date object: " + date);
    }

    // 当前时间对象转换为字符串
    static void DateTransformStringOne() {
        Date date = new Date();
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateString = dateFormat.format(date);
        System.out.println("dateString: " + dateString);
    }
    
    //指定日期对象转换为字符串
    static void DateTransformStringTwo() {
        // 创建指定日期对象
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date date = null;
        try {
            date = dateFormat.parse("2010-10-01 12:00:00");
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        String dateString = dateFormat.format(date);
        System.out.println("dateString: " + dateString);

    }

}