如何在JSON解析期间在Java中搜索JSON对象中的特定键

import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.Map;

public class JsonSearchExample {
    public static void main(String[] args) {
        String jsonString = "{\"name\":\"John\", \"age\":30, \"city\":\"New York\"}";

        try {
            // 使用Jackson库将JSON字符串解析为Map对象
            ObjectMapper objectMapper = new ObjectMapper();
            Map<String, Object> jsonMap = objectMapper.readValue(jsonString, Map.class);

            // 搜索特定的键
            String searchKey = "name";
            if (jsonMap.containsKey(searchKey)) {
                Object value = jsonMap.get(searchKey);
                System.out.println("键 " + searchKey + " 的值为: " + value);
            } else {
                System.out.println("未找到键 " + searchKey);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}