JAVA获取系统时间

/**
	 * 获取系统时间
	 * @return
	 */
	public String getDate(){
		
		 Calendar ca = Calendar.getInstance();
	      int year = ca.get(Calendar.YEAR);//获取年份
	      int month=ca.get(Calendar.MONTH);//获取月份 
	      int day=ca.get(Calendar.DATE);//获取日
	      int minute=ca.get(Calendar.MINUTE);//分 
	      int hour=ca.get(Calendar.HOUR);//小时 
	      int second=ca.get(Calendar.SECOND);//秒
	      
	      String date = year + "年" + (month + 1 )+ "月" + day + "日"+ hour + "时" + minute + "分" + second + "秒";


	      return date;
		
	}