How to use

newInstance

method

in

com.baomidou.mybatisplus.core.toolkit.ClassUtils

/**
 * map 装换为 java bean 对象
 *
 * @param map   转换 MAP
 * @param clazz 对象 Class
 * @return 返回 bean 对象
 */
public static <T> T mapToBean(Map<String, Object> map, Class<T> clazz) {
  T bean = ClassUtils.newInstance(clazz);
  BeanMap.create(bean).putAll(map);
  return bean;
}

/**
 * 测试实例化方法
 */
@Test
void newInstanceTest() {
  // 根据设计，只要能实例化，并且 对象不为 null ， 即认为执行成功
  Demo demo = ClassUtils.newInstance(Demo.class);
  Assertions.assertNotNull(demo);
  Map map = ClassUtils.newInstance(HashMap.class);
  Assertions.assertNotNull(map);
}

/**
 * map转为bean
 *
 * @param map       the map
 * @param beanClass the bean class
 * @return t
 */
public static <T> T mapToBean(Map<String, Object> map, Class<T> beanClass) {
  T entity = ClassUtils.newInstance(beanClass);
  BeanMap beanMap = BeanMap.create(entity);
  beanMap.putAll(map);
  return entity;
}