entity与map转换

1.BeanMap.create(pacdto)

2.BeanUtils.copyProperties(x,x)

3.BeanUtils.populate(x,x)



-->4、5有局限(String)

4.

/**
  * @author: tianyong
  * @time: 2019/5/21 10:40
  * @description:实体对象转成Map
  */
public static Map<String, Object> object2Map(Object obj) {
    Map<String, Object> map = new HashMap<>();
    if (obj == null) {
        return map;
    }
    Class clazz = obj.getClass();
    Field[] fields = clazz.getDeclaredFields();
    try {
        for (Field field : fields) {
            field.setAccessible(true);
            map.put(field.getName(), field.get(obj));
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return map;
}

5.

/**
  * @author: tianyong
  * @time: 2019/5/21 10:40
  * @description:Map转成实体对象
  */
public static Object map2Object(Map<String, Object> map, Class<?> clazz) {
    if (map == null) {
        return null;
    }
    Object obj = null;
    try {
        obj = clazz.newInstance();

        Field[] fields = obj.getClass().getDeclaredFields();
        for (Field field : fields) {
            int mod = field.getModifiers();
            if (Modifier.isStatic(mod) || Modifier.isFinal(mod)) {
                continue;
            }
            field.setAccessible(true);
            field.set(obj, map.get(field.getName()));
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return obj;
}