支柱2列表iterration

Question

我是新的支柱，我有使用採用彈簧與DAO實體類型POJO類支柱和後端一個前端，我想回到學生system.code我已經嘗試的名單附下面我得到值只有當我設置列表形式類。

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 code to acessslist is as 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

如果你想獲得Studentlist不使用第二種方法(setStudent(ArrayList<StudentEntity> studentList)) 你有你的學生添加到您的ArrayList中的第一種方法一樣studentList.add(student);這樣的事情;

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