Map与对象互转

 

使用org.apache.commons.beanutils进行转换

如果项目中没有该依赖，导入maven

<dependency>
  <groupId>commons-beanutils</groupId>
  <artifactId>commons-beanutils</artifactId>
  <version>1.9.2</version>
</dependency>

编写两个方法：

public static Object mapToObject(Map<String, Object> map, Class<?> beanClass) throws Exception {
   if (map == null)
      return null;

   Object obj = beanClass.newInstance();

   BeanUtils.populate(obj, map);

   return obj;
}

public static Map<?, ?> objectToMap(Object obj) {
   if(obj == null)
      return null;

   return new org.apache.commons.beanutils.BeanMap(obj);
}

 

运行此方法测试

	@Test
	public void test2()throws Exception{

		Person person = new Person();
		person.setId(3);
		person.setName("小明");
		person.setPhone("123456555");
		person.setHobby("打球");
		person.setSchool("兰州理工大学");

		System.out.println(person);
		Thread.sleep(1000L);
		Map<?, ?> map = objectToMap(person);
		System.out.println(map);
	}


	@Test
	public void test3()throws Exception{

		Map map = new HashMap<>();

		map.put("id",3);
		map.put("name","小明");
		map.put("phone","1234655555");
		map.put("hobby","打篮球");
		map.put("school","兰州理工大学");

		Person person = (Person)mapToObject(map, Person.class);
		System.out.println(person);



	}

 

参考：https://www.cnblogs.com/XuYiHe/p/6871799.html

推荐参考：https://blog.youkuaiyun.com/tiantangdizhibuxiang/article/details/80575412