updateaction.java

图书商城系统

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

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.tang.foruse.UserBean;
import com.tang.foruse.UserHandle;



/** 
 * MyEclipse Struts
 * Creation date: 05-23-2008
 * 
 * XDoclet definition:
 * @struts.action validate="true"
 * @struts.action-forward name="success" path="/update.jsp"
 */
public class UpdateAction extends Action {
	/*
	 * Generated Methods
	 */

	/** 
	 * ���뵽����actionֻ����һ�����
	 * �����û������ϵ��"�޸�����"��
	 * ��Ϊ���뵽�û�����ʱ�϶��Ѿ���¼
	 * ���Բ�����֤�û��ĺϷ���
	 * �û���id�Ѿ���session�д��ڣ��в�����֮����
	 * ����ͨ��userhandle���е�getuserbean�����õ��û�bean
	 * Ȼ�����request��������
	 * update.jspҳ�潫�������bean��������ʾ�û�������
	 * ͬʱ�ṩ�޸ĵ�t��
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		// TODO Auto-generated method stub
		String target = "success";
		HttpSession session  = request.getSession();
		StringBuffer homes = new StringBuffer();
		String username = (String)session.getAttribute("user");
		if(username!=null){
		homes = homes
				.append("<table height=600><tr><td>"
						+ username
						+ "������</td></tr>"
						+ "<tr><td><a href=home.do?home=\"buys\"><font size=2 color=gray>��������</font></a></td></tr>"
						+ "<tr><td><a href=collect.do><font size=2 color=gray>�ҵIJ����</font></a></td></tr>"
						+ "<tr><td><a href=home.do><font size=2 color=gray>�ҵĹ��ﳵ</font></a></td></tr>"
						+"<tr><td><hr width=\"175\" size=\"1\" color=\"gray\"></hr></td></tr>"
						+ "<tr><td><a href=update.do><font size=2 color=gray>�޸�����</font></a></td></tr>"
						+ "<tr><td><a href=modify.do><font size=2 color=gray>�޸�����</font></a></td></tr>"
						+ "<tr><td><a href=mydata.do><font size=2 color=gray>������Ϣ</font></a></td></tr>"
						+ "</table>");
		request.setAttribute("homes", homes);
		Integer uiditg = (Integer)session.getAttribute("userid");
		int uid= 0;
		if(uiditg!=null)
		 uid=uiditg.intValue();
		UserHandle handle = new UserHandle();
		UserBean bean = handle.getUserBean(uid);
		request.setAttribute("mybean", bean);
		}
		else
		{
			ActionErrors errors = new ActionErrors();
			ActionMessage msg = new ActionMessage("����δ��¼�����ȵ�¼", false);
			errors.add("update", msg);
			request.setAttribute(org.apache.struts.Globals.ERROR_KEY, errors);
			target = "failure";
			return mapping.findForward(target);
		}
		return mapping.findForward(target);
	}
}