updatecontactaction.java

基于SSH (struts+spring+hibernate)框架设计的 CRM客户关系管理系统

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.csu.crm.informationManage.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.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.csu.crm.common.vo.CrmContact;
import com.csu.crm.informationManage.dao.SingleObjectDAO;

/** 
 * MyEclipse Struts
 * Creation date: 09-29-2007
 * 
 * XDoclet definition:
 * @struts.action validate="true"
 * @author 曾东
 * 更新联系人信息操作,updateContact.do必须带contact的id参数
 * 即形如"上下文路径/updateContact.do?id=1"的请求路径
 * 否则抛出异常,转到错误页面
 * execute方法对传入的参数进入数据库查询,查询成功得到对应的contact对象后保存到session中,
 * 查询失败说明此id对应的contact不存在,抛出异常,转到错误页面
 */
public class UpdateContactAction extends Action {
	private SingleObjectDAO singleObjectDAO;
	/*
	 * Generated Methods
	 */

	public SingleObjectDAO getSingleObjectDAO() {
		return singleObjectDAO;
	}

	public void setSingleObjectDAO(SingleObjectDAO singleObjectDAO) {
		this.singleObjectDAO = singleObjectDAO;
	}

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		//得到request参数
		String id = request.getParameter("id");
		if(id == null) {
			System.out.println("未指出contact的id,将进入错误页面");
			request.setAttribute("errorInfo", "未指出contact的id,不能进行对应联系人信息的修改");
			return mapping.findForward("fail");
		}		
		//保存id到session中
		HttpSession session = request.getSession();
		session.setAttribute("contactId", id);
		//到数据库中查询对应对象
		if(singleObjectDAO.getObject("CrmContact", "contactId", id) == null) {
			System.out.println("未找到contact的id对应的对象,将进入错误页面");
			request.setAttribute("errorInfo", "未找到contact的id对应的数据,请检查请求参数的id值");
			return mapping.findForward("fail");
		} else {
			CrmContact crmContact = (CrmContact)singleObjectDAO.getObject("CrmContact", "contactId", id);
			session.setAttribute("selectedContact", crmContact);
			return mapping.findForward("success");
		}	
	}
}