usereditaction.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 UserEditAction extends BaseAction {

	@Override
	public ActionForward executeAction(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws BusinessException {
//首先，类似UserAddAction一样进行数据的校验和准备
		
		//从form中取得jsp页面传送过来用户编辑的内容
		DynaActionForm frm = (DynaActionForm) form;
		//判断两次密码是否一致
		//取值方式
		//frm.getString("password");
		//frm.getString("confirmpwd");
		//对比二者是否一致，如果不一致那么生成一个BusinessException抛出MessageKey请自定义
		//MessageKey在资源文件中定义
		//……你的代码……
		User user = new User();
		try {
			//BeanUtils.copyProperties的作用请通过互联网查找
			//该类能一定程度的降低编码量
			BeanUtils.copyProperties(user, frm);
		} catch (Exception e) {
			BusinessException be = new BusinessException();
			be.setMessageKey("errors.CopyProperties");
			be.setMessageArgs(new String[] { e.getMessage() });
			throw be;
		} 
		
//然后修改用户密码到数据库
		UserService us = new UserService();
		us.modifyPWD(user);
		return mapping.findForward(Constants.SUCCESS_KEY);
	}



}