301重定向的正则表达式

^HTTP\/1\.1\s+301\s+Moved\s+Permanently

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
    public static void main(String[] args) {
        String input = "HTTP/1.1 301 Moved Permanently";
        Pattern pattern = Pattern.compile("^HTTP\\/1\\.1\\s+301\\s+Moved\\s+Permanently");
        Matcher matcher = pattern.matcher(input);

        if (matcher.find()) {
            System.out.println("匹配到 301 重定向");
        } else {
            System.out.println("未匹配到 301 重定向");
        }
    }
}