统一日期格式，Sting转Date

前端接收的日期格式各式各样
需要统一日期格式

private static final SimpleDateFormat SDF = new SimpleDateFormat("yyyy/MM/dd");
	private static final SimpleDateFormat OLD_SDF = new SimpleDateFormat("yyyy-MM-dd");

	@Test
	public void test()throws Exception{
		String data = "1995-2-2";
		String data2 = "1995-02-02";
		String data3 = "1995-03-4";
		System.err.println(SDF.format(OLD_SDF .parse(data)));
		System.err.println(SDF.format(OLD_SDF .parse(data2)));
		System.err.println(SDF.format(OLD_SDF .parse(data3)));

	}