loginaction.java

java开发者突击源代码demo(struts).rar

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.demo.struts.actions;

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

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionErrors;
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 com.demo.struts.util.Constants;
import com.demo.struts.forms.LoginForm;

/** 
 * MyEclipse Struts
 * Creation date: 08-27-2008
 * 
 * XDoclet definition:
 * @struts.action path="/login" name="loginForm" input="/login.jsp" scope="request"
 * @struts.action-forward name="failure" path="/login.jsp"
 * @struts.action-forward name="success" path="/welcome.jsp"
 */
public class LoginAction 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) {
		ActionErrors errors = new ActionErrors();
		ActionForward forward = new ActionForward();
		LoginForm loginForm = (LoginForm)form;
		try{
			String username = loginForm.getUsername();
			String password = loginForm.getPassword();
			
			HttpSession session = request.getSession(false);
			if(session!=null){
				session.invalidate();
			}
			session = request.getSession(true);
			
			boolean isValid = false;
			if(username.equals("admin")&&password.equals("admin")){
				isValid = true;
			}
			
			if(isValid){
				session.setAttribute(Constants.USERNAME_KEY,username);
			}else{
				errors.add(ActionErrors.GLOBAL_MESSAGE,new ActionMessage("login.error.failed"));
			}
		}catch(Exception e){
			errors.add(ActionErrors.GLOBAL_MESSAGE,new ActionMessage("login.error.failed"));
		}
		
		if(!errors.isEmpty()){
			saveErrors(request,errors);
			
			forward = mapping.findForward(Constants.FAILURE_KEY);
		}else{
			forward = mapping.findForward(Constants.SUCCESS_KEY);
		}
		
		return(forward);
	}
}