将java.sql.Date格式化为yyyyMMdd

时间:2015-01-09 04:37:48

标签: java date

我正在使用以下代码

@SuppressWarnings("deprecation")
Date d = new Date (2014,01,9);
System.out.println(d);
DateFormat df = new SimpleDateFormat("yyyyMMdd");
final String text = df.format(d);
System.out.println(text);

我的输出低于输出值。

3914-02-09
39140209

有人知道为什么有3914吗?

谢谢, 马赫什

2 个答案:

答案 0 :(得分:2)

您使用java.sql.Date(int,int,int)的构造函数的javadoc读取(部分),

  

- 减去1900年;必须是0到8099.(注意8099是9999减去1900。)

所以你应该使用(假设你的意思是这个年)

Date d = new Date (2015-1900,01,9); 

答案 1 :(得分:2)

来自Java Docs,

Deprecated. As of JDK version 1.1, replaced by Calendar.set(year + 1900, month, date) or GregorianCalendar(year + 1900, month, date).

Allocates a Date object and initializes it so that it represents midnight, local time, at the beginning of the day specified by the year, month, and date arguments. 

Parameters:
year the year minus 1900.
month the month between 0-11.
date the day of the month between 1-31.

<强>代码

public static void main(String[] args) {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        int year = 2014;
        int month = 01;
        int day = 9;
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.YEAR, year);
        cal.set(Calendar.MONTH, month - 1);
        cal.set(Calendar.DAY_OF_MONTH, day);

        java.sql.Date date = new java.sql.Date(cal.getTimeInMillis());
        System.out.println(sdf.format(date));
    }

<强>输出

2014-01-09