java-web - JAVA语言如何实现ES6 Object.assign，两个属性相同的对象增量更新字段信息，最好最快的实现方式？

Question

对象比较复杂，对象拥有其他对象，最好的实现方式是什么

Answer 1

Java is not as convenient as js to get attribute fields. You have to use reflection

There is no other way to obtain the properties and values ​​​​of two objects through reflection and then traverse

A convenient way is to convert the object into a map, then traverse the attributes, and finally convert the map back to the object. This process can be done with json-related tools such as gson or fastjson