deleteemployeeaction.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 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.dao.CrmEmployeeDAO;
import com.csu.crm.common.vo.CrmEmployee;
import com.csu.crm.informationManage.dao.SingleObjectDAO;

/** 
 * MyEclipse Struts
 * Creation date: 09-29-2007
 * 
 * XDoclet definition:
 * @struts.action validate="true"
 * @author 曾东
 * 删除员工信息操作,updateEmployee.do必须带employee的id参数
 * 即形如"上下文路径/updateEmployee.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employee对象后删除此对象,
 * 查询失败说明此id对应的employee不存在,抛出异常,转到错误页面
 */
public class DeleteEmployeeAction extends Action {
	private CrmEmployeeDAO crmEmployeeDAO;

	public CrmEmployeeDAO getCrmEmployeeDAO() {
		return crmEmployeeDAO;
	}

	public void setCrmEmployeeDAO(CrmEmployeeDAO crmEmployeeDAO) {
		this.crmEmployeeDAO = crmEmployeeDAO;
	}
	/** 
	 * 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employee的id,将进入错误页面");
			request.setAttribute("errorInfo", "未指出employee的id,不能进行对应员工信息的修改");
			return mapping.findForward("fail");
		}	
		//到数据库中查询对应对象
		if(crmEmployeeDAO.findById(id) == null) {
			System.out.println("未找到employee的id对应的对象,将进入错误页面");
			request.setAttribute("errorInfo", "未找到employee的id对应的数据,请检查请求参数的id值");
			return mapping.findForward("fail");
		} else {
			//查找成功则删除
			crmEmployeeDAO.delete(crmEmployeeDAO.findById(id));
			//return mapping.findForward("success");
			return null;
		}
	}
}