public static Object mapToObject(Map<String, Object> map, Class<?> beanClass) throws Exception { if (map == null) return null; Object obj = beanClass.newInstance(); org.apache.commons.beanutils.BeanUtils.populate(obj, map); return obj; } public static Map<?, ?> objectToMap(Object obj)...
class A { public static Object mapToObject(Map<String, Object> map, Class<?> beanClass) throws Exception { if (map == null) return null; Object obj = beanClass.newInstance(); org.apache.commons.beanutils.BeanUtils.populate(obj, map); return obj; } public static Map<?, ?>...
Map<String,Object>map=newHashMap<>();// 假设Map中已经有一些键值对// 遍历Mapfor(Map.Entry<String,Object>entry:map.entrySet()){Stringkey=entry.getKey();Objectvalue=entry.getValue();// 根据key和value来设置Object的属性// 这里可以使用反射来动态设置属性值// 也可以直接调用setter方法来设置属性值...
Returnstrueif this map maps one or more keys to the specified value. Set<Map.Entry<K,V>>entrySet() Returns aSetview of the mappings contained in this map. booleanequals(Objecto) Compares the specified object with this map for equality. ...
Java中Map和Object的互相转换方式 一、使用Apache中的BeanUtils类,导入commons-beanutils包。 Jar包Maven下载地址:https://mvnrepository.com/artifact/commons-beanutils/commons-beanutils。 底层实现方式: //1、map转换为object public static Object mapToObject(Map<String, Object> map, Class<?> beanClass)...
Java里Map与Object相互转换的方法有哪些? 代码语言:javascript 代码运行次数:0 运行 AI代码解释 /** * 使用org.apache.commons.beanutils进行转换 */ class A { public static Object mapToObject(Map<String, Object> map, Class<?> beanClass) throws Exception { if (map == null) return null; Object ...
/** * 使用org.apache.commons.beanutils进行转换 */ class A { public static Object mapToObject(Map<String, Object> map, Class<?> beanClass) throws Exception { if (map == null) return null; Object obj = beanCl
import java.util.Map; public class teshttp://tMapToObject { public static void main(String[] args){ //假设有一个Map存放了一个对象的姓名和年龄 Mapmap = new HashMap(); map.put("name", "Kobi"); map.put("age", 39); User user = transferMapToUser(map,User.class); ...
1public static Object map2Object_3(Map<String, Object> map, Class<?> clazz) { 2 if (map == null) { 3 return null; 4 } 5 return JSON.parseObject(JSON.toJSONString(map), clazz); 6 } 7 8 public static Map<?, ?> Object2Map_3(Object object) { 9 if (object == null) { 10...
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(personMap); // 输出:{name=Alice, age=30} // Map转换为对象 Person newPerson...