usereditprepareaction.java

this is very useful book for the learn of java programing.

package edu.buptsse.sxjd.actions;

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

import org.apache.commons.beanutils.BeanUtils;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.DynaActionForm;

import edu.buptsse.sxjd.common.Constants;
import edu.buptsse.sxjd.model.User;
import edu.buptsse.sxjd.service.BusinessException;
import edu.buptsse.sxjd.service.UserService;

public class UserEditPrepareAction extends BaseAction {

	@Override
	public ActionForward executeAction(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws BusinessException {
		//从form中取得jsp页面传送过来用户编辑的内容
		DynaActionForm frm = (DynaActionForm) form;
		//取得用户id号
		Integer userid = (Integer) frm.get("id");
		
		UserService us = new UserService();
		User user = us.getUserByID(userid);
		try {
			BeanUtils.copyProperties(frm, user);
		} catch (Exception e) {
			BusinessException be = new BusinessException();
			be.setMessageKey("errors.CopyProperties");
			be.setMessageArgs(new String[] { e.getMessage() });
			throw be;
		} 
		return mapping.findForward(Constants.SUCCESS_KEY);
	}



}