struts中如何让前台返回一个集合在后台能接收到这个集合

Question

形如：
public class user{
private int id;
private String name;
private int age;
private List photoList;

//getter and setter

}

public class Photo{
private int id;
private int userId;
private String path;

//setter and getter

}

Answer 1

https://blog.csdn.net/cb2474600377/article/details/51162814