addteacheraction.java

使用JSP+Servlet+Hibernate+Struts实现的一个学生软件发布平台

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package edu.neu.sspp.struts.action.admin;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.action.ActionRedirect;
import org.hibernate.Transaction;

import edu.neu.sspp.hibernate.HibernateSessionFactory;
import edu.neu.sspp.hibernate.TAdminDAO;
import edu.neu.sspp.hibernate.TTeacher;
import edu.neu.sspp.hibernate.TTeacherDAO;
import edu.neu.sspp.hibernate.TUserDAO;
import edu.neu.sspp.struts.form.admin.AddTeacherForm;

/** 
 * MyEclipse Struts
 * Creation date: 06-15-2007
 * 
 * XDoclet definition:
 * @struts.action path="/admin/addTeacher" name="addTeacherForm" input="/admin_page/add_teacher.jsp" scope="request" validate="true"
 */
public class AddTeacherAction extends Action {
	/*
	 * Generated Methods
	 */

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		AddTeacherForm addTeacherForm = (AddTeacherForm) form;// TODO Auto-generated method stub
		
		TUserDAO userDAO = new TUserDAO();
		TTeacherDAO teacherDAO = new TTeacherDAO();
		TAdminDAO adminDAO = new TAdminDAO();
		TTeacher teacher = new TTeacher();
		
		if(adminDAO.findByName(addTeacherForm.getName()).size() > 0) {
			ActionMessages errors = new ActionMessages();
			errors.add("name", new ActionMessage("error.register.userName.repeat"));
			saveErrors(request,errors);
			
			addTeacherForm.setPassword("");
			addTeacherForm.setRePassword("");
			
			return mapping.getInputForward();
		}
		
		if(teacherDAO.findByName(addTeacherForm.getName()).size() > 0) {
			ActionMessages errors = new ActionMessages();
			errors.add("name", new ActionMessage("error.register.userName.repeat"));
			saveErrors(request,errors);
			
			addTeacherForm.setPassword("");
			addTeacherForm.setRePassword("");
			
			return mapping.getInputForward();
		}
		
		if(userDAO.findByUserName(addTeacherForm.getName()).size() > 0) {
			ActionMessages errors = new ActionMessages();
			errors.add("name", new ActionMessage("error.register.userName.repeat"));
			saveErrors(request,errors);
			
			addTeacherForm.setPassword("");
			addTeacherForm.setRePassword("");
			
			return mapping.getInputForward();
		}
		
		teacher.setName(addTeacherForm.getName());
		teacher.setRealName(addTeacherForm.getRealName());
		teacher.setPassword(addTeacherForm.getPassword());
		teacher.setEmail(addTeacherForm.getEmail());
		
		Transaction transaction = HibernateSessionFactory.getSession().beginTransaction();
		
		teacherDAO.save(teacher);
		
		transaction.commit();
		
		HibernateSessionFactory.closeSession();
		
		return new ActionRedirect("../servlet/admin/ManageTeacher");
	}
}