Hutool是一个小而全的Java工具类库,它提供了很多便捷的API,包括将对象转换为Map的功能。 java import cn.hutool.core.bean.BeanUtil; import java.util.Map; public class HutoolExample { public static void main(String[] args) { User user = new User("Alice", 30); Map<String, Object> map...
使用Hutool Hutool有一个BeanUtil类可以直接将对象转换为`Map`。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 User user=newUser();Map<String,Object>mapRepresentation=BeanUtil.beanToMap(user);System.out.println(mapRepresentation); 是不是觉得有Hutool方便多了?
map.put("subName", "公众号"); System.out.println(map2Bean(map, Person.class)); System.out.println(map2Bean2(map, Person.class)); public static <T> T map2Bean(Map<String, Object> map, Class<T> clazz) throws IllegalAccessException, InstantiationException { T instance = clazz.newInstanc...
import cn.hutool.core.bean.BeanUtil; import cn.hutool.core.map.MapUtil; import java.util.Map; // 使用示例 Person person = new Person(); person.setName("Alice"); person.setAge(30); // 对象转换为Map Map<String, Object> personMap = BeanUtil.beanToMap(person); System.out.println(person...
//map转java Map<String, Object> map = new HashMap(); map.put("id", 2L); map.put("name", "三省同学2"); System.out.println(BeanUtil.toBean(map, User.class)); } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. ...
Map<String, Object> hutoolMap = BeanUtil.beanToMap(transferLog); // 转出转换结果 System.out.println("## 转换结果 ##"); System.out.println(new Gson().toJson(hutoolMap)); 转出结果: ## 转换结果 ## {"id":"1","amount":2310.00,"transferTime":"Feb 18, 2021 2:01:01 PM","transfer...
Map<String, Object> map = new HashMap<>(); Class<?> clazz = object.getClass(); Field[] fields = clazz.getDeclaredFields(); for (Field field : fields) { field.setAccessible(true); try { Object value = field.get(object); if (value != null) { ...
import cn.hutool.core.bean.BeanUtil; 1. 对象转换为Map Person person = new Person(); person.setName("Alice"); person.setAge(30); // 对象转换为Map Map<String, Object> map = BeanUtil.beanToMap(person); System.out.println(map);
Map转换为Bean java 代码解读 复制代码 importcn.hutool.core.bean.BeanUtil; Map<String, Object> map =newHashMap<>(); map.put("name","John"); map.put("age",30);Useruser=BeanUtil.mapToBean(map, User.class,true);// 将Map转换为Java Bean ...
Map操作工具类,可用于创建 Map 对象及判断 Map 是否为空。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 @Test(description = "MapUtil使用:Map工具类") public void mapUtil() { //将多个键值对加入到Map中 Map<Object, Object> map = MapUtil.of(new String[][]{ {"key1", "value1"}, {...