indexaction.java

这是一个用Struts+Hibernate+Tomcat5.5.9实现的一个“课程管理系统”

//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_4.0.0/xslt/JavaClass.xsl

package struts.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;


import struts.*;
import hibernate.*;

import struts.form.AddStudentForm;
import struts.form.IndexForm;

/**
 * MyEclipse Struts Creation date: 11-12-2005
 * 
 * XDoclet definition:
 * 
 * @struts.action path="/index" name="IndexForm" input="/index.jsp"
 *                scope="request" validate="true"
 */
public class IndexAction extends Action {

	// --------------------------------------------------------- Instance
	// Variables

	// --------------------------------------------------------- Methods

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		IndexForm indexForm = (IndexForm) form;
		
		String username = "";
		String password = null;
		String kind=null;
		String pd="";

		ActionMessages errors = new ActionMessages();

		if (indexForm != null) {
			username = indexForm.getUsername();
			password = indexForm.getPassword();
			kind = indexForm.getKind();
			pd = HibernateUtil.findPassword(username);
		}
        
		//pd = HibernateUtil.findPassword("luo");
		
		HttpSession session = request.getSession();

		if ((pd.equals(password)) && (pd != "")&&(pd!=null)) {
			session.setAttribute("username", username);

		} else {
			errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(
					"error.password.required"));
		}

		if (!errors.isEmpty()) {
			saveErrors(request, errors);
			return (new ActionForward(mapping.getInput()));
		}

		if (mapping.getAttribute() != null) {
			if ("request".equals(mapping.getScope()))
				request.removeAttribute(mapping.getAttribute());
			else
				session.removeAttribute(mapping.getAttribute());
		}
		
		if(kind.equals("teacher")){
			return (mapping.findForward(Constants.TEACHER_SUCCESS));
		}
		
		if(kind.equals("student")){
			return (mapping.findForward(Constants.STUDENT_SUCCESS));
		}

		return (mapping.findForward(Constants.ADMIN_SUCCESS));

	}

}