匹配yyyyMMdd HH:mm:ss正则表达式

String regeb = "^(?:(?!0000)[0-9]{4}(?:(?:0[1-9]|1[0-2])(?:0[1-9]|1[0-9]|2[0-8])|(?:0[13-9]|1[0-2])(?:29|30|31)|(?:0[13578]|1[02])-31)|(?:[0-9]{2}(?:0[48]|[2468][048]|[13579][26])|(?:0[48]|[2468][048]|[13579][26])00)0229)((0[0-9])|(1[0-9])|(2[0-3]))[0-5][0-9][0-5][0-9]{1}";