struts 2 次列表迭代

Question

我是新手 struts 我有一个使用 struts 的前端和一个使用 spring dao 实体类型 pojo class 的后端，我想 return 我试过的 system.code 中的学生列表附在下面我只有在将列表设置为 class.

时才能获取值

public class Studentform {
    private StudentEntity student;
    public StudentEntity getStudent() {
        return student;
    }
    public void setStudent(StudentEntity student) {
        this.student = student;
    }
    public void setStudent(ArrayList<StudentEntity> studentList) {
        // TODO Auto-generated method stub
        this.studentList=studentList;
    }
}

action class 访问列表的代码为 studform.setStudent(studentList);

public class StudentAction extends ActionSupport implements
    ModelDriven<Studentform> {
    ArrayList<StudentEntity> studentList=new ArrayList<StudentEntity>();
    //geters and setter for studentList
        public String stdus() {
        HttpSession session = ServletActionContext.getRequest().getSession();
        String id = (String) session.getAttribute("userid");
        studentList=controller.getStudentProfile();
        studform.setStudentList(studentList);
        System.out.println(studentList.size());
        return "SUCCESS";
    }
}

Answer 1

如果你想不使用第二种方法获取学生列表(setStudent(ArrayList<StudentEntity> studentList)) 你必须在你的第一个方法中将你的学生添加到你的arraylist中，比如studentList.add(student); something like this;

public class Studentform {

private StudentEntity student;
private List<StudentEntity> studentList = new ArrayList();

public StudentEntity getStudent() {
    return student;
}
public void setStudent(StudentEntity student) {
    this.student = student;
    studentList.add(student);
}
//add your list getter method here

struts 2 次列表迭代

struts 2 list iteration

spring

struts2