Struts 2 - 添加到嵌套集合

发布于 2024-10-15 04:42:38 字数 831 浏览 2 评论 0原文

所以我有一个学生类，它是我的动作类

import java.util.Vector;

public class Student extends ActionSupport{
    private Vector<AcaClass> classes;

    public Student(){}

    public Vector<Class> getClasses() {
        return classes;
    }

    public void setClasses(Vector<Class> classes) {
        this.classes = classes;
    }

    public void addClass(AcaClass acaClass){
            this.classes.add(acaClass)
    }  


}

，并且我有一个 AcaClass

public class AcaClass {

    private Term term;
    private String grade;
    private String description;
    //public 

    public AcaClass(){}

        //Getters and setters for all data members
}

是否可以将一个类添加到学生的类集合中？我觉得我必须提交表单，然后进行一些类型转换才能将表单字段转换为 AcaClass bean。如果可能的话，我可以进入多少级别的集合（即，将一个班级添加到大学集合中的学院集合中的学生集合中）

原文

So I have a student class that is my action class

import java.util.Vector;

public class Student extends ActionSupport{
    private Vector<AcaClass> classes;

    public Student(){}

    public Vector<Class> getClasses() {
        return classes;
    }

    public void setClasses(Vector<Class> classes) {
        this.classes = classes;
    }

    public void addClass(AcaClass acaClass){
            this.classes.add(acaClass)
    }  


}

and I have a AcaClass

public class AcaClass {

    private Term term;
    private String grade;
    private String description;
    //public 

    public AcaClass(){}

        //Getters and setters for all data members
}

Is it possible to add a class to to the student's collection of classes? I feel like that I would have to do a form submission and then some type conversion to turn the form fields into the AcaClass bean. If this is possible, how many levels of collections can I go (i.e. Add a class to a collection of students thats in a collection of colleges thats in a collection of universities)

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