如何在java中的哈希映射中的sql中搜索LIKe运算符

import java.util.HashMap;
import java.util.Map;
import java.util.regex.Pattern;
import java.util.stream.Collectors;

public class HashMapSearch {
    public static void main(String[] args) {
        Map<String, String> hashMap = new HashMap<>();
        hashMap.put("apple", "fruit");
        hashMap.put("banana", "fruit");
        hashMap.put("carrot", "vegetable");
        hashMap.put("beetroot", "vegetable");

        String searchKey = ".*oo.*"; // 正则表达式，表示包含 "oo" 的字符串
        Pattern pattern = Pattern.compile(searchKey);

        Map<String, String> result = hashMap.entrySet().stream()
                .filter(entry -> pattern.matcher(entry.getKey()).matches())
                .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));

        System.out.println("搜索结果：");
        result.forEach((key, value) -> System.out.println(key + " - " + value));
    }
}