java匹配时间

public static void main(String[] args) {
		String str="(2012-02-8)casfdsagfdhajaghs";
		boolean startStr = str.startsWith("(");
		if(startStr){
			String tempStr = str.substring(1);
			int timeIndex = tempStr.indexOf(")");
			System.out.println(timeIndex);
			if(timeIndex > 0){
				String timeStr = tempStr.substring(0,timeIndex);
				System.out.println(timeStr);
				if(isTimeStr(timeStr)){
					String res = tempStr.substring(timeIndex);
					System.out.println(res);
				}
			}
		}
		
	}
	public static boolean isTimeStr(String timeStr){
		boolean isTimeStr1 = false, isTimeStr2 =false;

        String DatePattern = "^(?:([0-9]{4}-(?:(?:0?[1,3-9]|1[0-2])-(?:29|30)|"
                + "((?:0?[13578]|1[02])-31)))|"
                + "([0-9]{4}-(?:0?[1-9]|1[0-2])-(?:0?[1-9]|1\\d|2[0-8]))|"
                + "(((?:(\\d\\d(?:0[48]|[2468][048]|[13579][26]))|"
                + "(?:0[48]00|[2468][048]00|[13579][26]00))-0?2-29)))$";
        String DatePattern2 = "^(?:([0-9]{4}/(?:(?:0?[1,3-9]|1[0-2])/(?:29|30)|"
        		+ "((?:0?[13578]|1[02])/31)))|"
        		+ "([0-9]{4}/(?:0?[1-9]|1[0-2])/(?:0?[1-9]|1\\d|2[0-8]))|"
        		+ "(((?:(\\d\\d(?:0[48]|[2468][048]|[13579][26]))|"
        		+ "(?:0[48]00|[2468][048]00|[13579][26]00))/0?2/29)))$";
        Pattern p1 = Pattern.compile(DatePattern);
        Matcher m1 = p1.matcher(timeStr);
        isTimeStr1 = m1.matches();
        Pattern p2 = Pattern.compile(DatePattern2);
        Matcher m2 = p2.matcher(timeStr);
        isTimeStr2 = m2.matches();
		return isTimeStr1 || isTimeStr2 ;
	}