mysql 正则匹配ip地址_正则表达式-完结
时间: 2023-10-12 07:19:53 浏览: 276
如果你想在 MySQL 中使用正则表达式来匹配 IP 地址,可以使用 REGEXP 运算符。下面是一个例子:
SELECT * FROM my_table WHERE ip_address REGEXP '^([0-9]{1,3}\.){3}[0-9]{1,3}$';
这个正则表达式会匹配符合标准 IPv4 地址格式的字符串,比如:
192.168.0.1
10.0.0.1
172.16.0.1
如果你想匹配 IPv6 地址,可以使用更复杂的正则表达式。这里有一个可以匹配 IPv6 地址的例子:
SELECT * FROM my_table WHERE ip_address REGEXP '^(([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}(:[0-9a-fA-F]{1,4}){1,6})$';
这个正则表达式比较长,但可以匹配符合标准 IPv6 地址格式的字符串。比如:
2001:0db8:85a3:0000:0000:8a2e:0370:7334
2001:db8:85a3::8a2e:370:7334
::1
希望这个回答能帮到你!
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