java 正则表达式无法搜索字符串 总是返回false

Posted 2023-03-11

import java.util.regex.Pattern;

public class test

public static void main(String args[])
System.out.print(listHas("user_name"));


private static boolean listHas(String pattern)
String content = "[[user_name, 9da179fc-d29b-4ef7-ae61-f485589222ab, 100.2, 66.0, -953]]";
return Pattern.matches(pattern, content);

参考技术A return Pattern.matches(pattern, content);写反了
return Pattern.matches(content，pattern);追问

public static boolean matches(String regex, CharSequence input)
Pattern p = Pattern.compile(regex);
Matcher m = p.matcher(input);
return m.matches();

要pattern在前的