关于ModelDriven如何在同一个actiong中实现两个类的问题

[just_learner007]

做一个登录系统，其中有教师登录和学生登录两个角色，我已经创建了teacher类和student类，想用ModelDriven传值到action，可是不知道应该怎样才能将这两个类同时实现，特来请教各位，我应该怎么做？下边附上源码
Teacher.java类

[code=text]package com.hp.exa.hibernate;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="student")
public class Student{
	
	private String studentID;
	private String password;
	private String studentName;
	private int result;
	private String sclass;
	@Id
	@GeneratedValue
	public String getStudentID() {
		return studentID;
	}
	public void setStudentID(String studentID) {
		this.studentID = studentID;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public String getStudentName() {
		return studentName;
	}
	public void setStudentName(String studentName) {
		this.studentName = studentName;
	}
	public int getResult() {
		return result;
	}
	public void setResult(int result) {
		this.result = result;
	}
	public String getSclass() {
		return sclass;
	}
	public void setSclass(String sclass) {
		this.sclass = sclass;
	}
	
	
}

[/code]
Student.java类

package com.hp.exa.hibernate;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="teacher")
public class Teacher{
private String teacherID;
private String password;
@Id
@GeneratedValue
public String getTeacherID() {
	return teacherID;
}
public void setTeacherID(String teacherID) {
	this.teacherID = teacherID;
}
public String getPassword() {
	return password;
}
public void setPassword(String password) {
	this.password = password;
}

}

LoginAction.类

package com.hp.exa.action;

import com.hp.exa.dao.LoginDao;
import com.hp.exa.dao.impl.LoginDaoImpl;
import com.hp.exa.hibernate.Student;
import com.hp.exa.hibernate.Teacher;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;


public class LoginAction extends ActionSupport implements ModelDriven<Student>{

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private Teacher teacher;
	private Student student;
	private String role;

	public String execute() {
		if ("student".equals(role)) {
			LoginDao logindao = new LoginDaoImpl();
			if (logindao.studentlogin(student)) {
				return "studentsuccess";
			} else {
				return ERROR;
			}
		}else if("teacher".equals(role)){
			LoginDao logindao=new LoginDaoImpl();
			if(logindao.teacherlogin(teacher)){
				return "teachersuccess";
			}else{
				return ERROR;
			}
		}
		return role;
		
	}

	@Override
	public Student getModel() {
		// TODO Auto-generated method stub
		if (student == null) {
			student = new Student();
		}
		return student;
	}

	public String getRole() {
		return role;
	}

	public void setRole(String role) {
		this.role = role;
	}

}

[花谢尊前不敢香]

大胆尝试，主动验证。结果自己就能看到了。

[花谢尊前不敢香]

再抽出来一个类，存放teacher和student对象，驱动这个类。

[just_learner007]

具体应该怎么做啊？刚开始学习java，还不懂应该怎么去做

引用

再抽出来一个类，存放teacher和student对象，驱动这个类。

[just_learner007]

@just_learner007 具体应该怎么做？我刚开始学java，还不太懂

[just_learner007]

@花谢尊前不敢香 具体应该怎么做？刚开始学不太懂

[花谢尊前不敢香]

再另外写一个类如Test，属性有teacher和student，提供set get 在getModel里 return new Test()，前台页面用teacher.teacherID等传值。

[just_learner007]

@花谢尊前不敢香 是这样写吗

package com.hp.exa.hibernate;

public class Login {
	private Student student;
	private Teacher teacher;

	public Student getStudent() {
		return student;
	}

	public void setStudent(Student student) {
		this.student = student;
	}

	public Teacher getTeacher() {
		return teacher;
	}

	public void setTeacher(Teacher teacher) {
		this.teacher = teacher;
	}

}