动态读取hashmap嵌套属性

import java.util.HashMap;

public class HashMapUtils {
    public static Object getNestedPropertyValue(HashMap<String, Object> hashMap, String property) {
        String[] properties = property.split("\\."); // 使用"."分割属性路径
        Object value = hashMap;
        
        for (String prop : properties) {
            if (value instanceof HashMap) {
                value = ((HashMap<String, Object>) value).get(prop);
            } else {
                return null; // 属性路径错误或属性不存在
            }
        }
        
        return value;
    }
    
    public static void main(String[] args) {
        HashMap<String, Object> hashMap = new HashMap<>();
        HashMap<String, Object> nestedHashMap = new HashMap<>();
        nestedHashMap.put("nestedProperty", "Nested Value");
        hashMap.put("nested", nestedHashMap);
        
        String property = "nested.nestedProperty";
        Object value = getNestedPropertyValue(hashMap, property);
        
        System.out.println("Property: " + property);
        System.out.println("Value: " + value);
    }
}