modifypwdaction.java

这是我自己做的一个选课系统

package org.struts2.actions;

import org.hibernate.beans.Login;
import org.hibernate.beans.Student;
import org.hibernate.beans.Teacher;
import org.hibernate.dao.LoginDAO;
import org.hibernate.dao.StudentDAO;
import org.hibernate.dao.TeacherDAO;
import org.struts2.common.PageAction;
import org.struts2.util.Constants;

import com.opensymphony.xwork2.Action;

public class ModifyPwdAction extends PageAction{

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	private StudentDAO studentDAO;
	
	private TeacherDAO teacherDAO;
	
	private LoginDAO loginDAO;
	
	private String new_pwd;
	
	public String getNew_pwd() {
		return new_pwd;
	}

	public void setNew_pwd(String new_pwd) {
		this.new_pwd = new_pwd;
	}

	public StudentDAO getStudentDAO() {
		return studentDAO;
	}

	public void setStudentDAO(StudentDAO studentDAO) {
		this.studentDAO = studentDAO;
	}

	public TeacherDAO getTeacherDAO() {
		return teacherDAO;
	}

	public void setTeacherDAO(TeacherDAO teacherDAO) {
		this.teacherDAO = teacherDAO;
	}

	public LoginDAO getLoginDAO() {
		return loginDAO;
	}

	public void setLoginDAO(LoginDAO loginDAO) {
		this.loginDAO = loginDAO;
	}

	public String init(){
		
		clearErrorsAndMessages();
		
		String roleForward = (String)getSession(Constants.USERNAME_ROLE);
		return roleForward;
	}
	
	public String update(){
		
		clearErrorsAndMessages();
		
		String role = (String)getSession(Constants.USERNAME_ROLE);
		
		String user_id = (String)getSession(Constants.USERNAME_KEY);
		
		if(role.equals("student")){
			
			Student student = this.studentDAO.getStudent(user_id);
			
			student.setStuPwd(new_pwd);
			
			this.studentDAO.updateStudent(student);
			
		}else
		if(role.equals("teacher")){
			
			Teacher teacher = this.teacherDAO.getTeacher(user_id);
			
			teacher.setTeacherPwd(new_pwd);
			
			this.teacherDAO.updateTeacher(teacher);
			
		}else
		if(role.equals("admin")){
			
			Login login = this.loginDAO.getUser(user_id);
			
			login.setPassword(new_pwd);
			
			this.loginDAO.updateUser(login);
		}
		return Action.SUCCESS;
	}

}