/**
* 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;
}