java 正则表达式匹配IP加个判断String regex = "^(1\\d{2}|2[0-4]\\d|25[0-5]|[1-9]\\d|[1-9])\\." + "(1\\d{2}|2[0-4]\\d|25[0-5]|[1-9]\\d|\\d)\\."+ "(1\\d{2}|2[0-4]\\d|25[0-5]|[1-9]\\d|\\d)\\." + "(1\\d{2}|2[0-4]\\d|25[0-5]|[1-9]\\d|\\d)$";加

java 正则表达式匹配IP加个判断
String regex = "^(1\\d{2}|2[0-4]\\d|25[0-5]|[1-9]\\d|[1-9])\\." + "(1\\d{2}|2[0-4]\\d|25[0-5]|[1-9]\\d|\\d)\\."
+ "(1\\d{2}|2[0-4]\\d|25[0-5]|[1-9]\\d|\\d)\\." + "(1\\d{2}|2[0-4]\\d|25[0-5]|[1-9]\\d|\\d)$";
加个去除169开头的ip怎么改

第一个子string改成"^(\\d|[1-9]\\d|1[0-5]\\d|16[0-8]|1[7-9]\\d|2[0-4]\\d|25[0-5])\\.",原理其实很简单,就是分类分成0-99,100-159,160-168,170-199,200-249,250-255分别匹配