springmvc jsp提交list的方法

1、不支持List做Controller的参数：

所以报错：org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [java.util.List]: Specified class is an interface

还得用复合类做参数：

public class UserImgEx  implements Serializable{

    private static final long serialVersionUID = 1423423432L;
    
    private List<UserImg> userImgs;

    public List<UserImg> getUserImgs() {
        return userImgs;
    }

    public void setUserImgs(List<UserImg> userImgs) {
        this.userImgs = userImgs;
    }
}