正则检验yyyy-MM-dd格式

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@Test 
public void test24(){ 
String date = "2023-02-28" ; 
//正则匹配的日期格式为:yyyy-MM-dd 
String rexp = "^(((\d{2}(([02468][048])|([13579][26]))[\-]((((0?[13578])|(1[02]))[\-]((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-]((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-]((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-]((((0?[13578])|(1[02]))[\-]((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-]((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-]((0?[1-9])|(1[0-9])|(2[0-8])))))))";
 //正则匹配的日期格式为:yyyy/MM/dd或者yyyy-MM-dd 
 // String rexp = "^(((\d{2}(([02468][048])|([13579][26]))[\-]((((0?[13578])|(1[02]))[\-]((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-]((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-]((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-]((((0?[13578])|(1[02]))[\-]((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-]((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-]((0?[1-9])|(1[0-9])|(2[0-8]))))))|"
  // + "((\d{2}(([02468][048])|([13579][26]))[\/]((((0?[13578])|(1[02]))[\/]((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\/]((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\/]((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\/]((((0?[13578])|(1[02]))[\/]((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\/]((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\/]((0?[1-9])|(1[0-9])|(2[0-8])))))))"; 
  Pattern pattern = Pattern.compile(rexp); 
  Matcher startM = pattern.matcher(date); 
  if(startM.matches() == false){ 
  System.out.println("格式错误"); 
  }else{ 
  System.out.println("格式正确"); } 
  }