字符串相关

 /**
     * 功能：判断字符串是否为数字
     * 
     * @param str
     * @return
     */
    private static boolean isNumeric(String str) {
    	try {
    		Pattern pattern = Pattern.compile("[0-9]*");
            Matcher isNum = pattern.matcher(str);
            if (isNum.matches()) {
                return true;
            } else {
                return false;
            }
		} catch (Exception e) {
			return false;
		}
        
    }

    /**
     * 功能：判断字符串是否为日期格式
     * 
     * @param str
     * @return
     */
    public static boolean isDate(String strDate) {
    	try {
    		Pattern pattern = Pattern.compile("^((\\d{2}(([02468][048])|([13579][26]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])))))|(\\d{2}(([02468][1235679])|([13579][01345789]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\\s(((0?[0-9])|([1-2][0-3]))\\:([0-5]?[0-9])((\\s)|(\\:([0-5]?[0-9])))))?$");
            Matcher m = pattern.matcher(strDate);
            if (m.matches()) {
                return true;
            } else {
                return false;
            }
		} catch (Exception e) {
			return false;
		}
    }