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);

     }

 }