manager.java

在线考试系统

package com.wgh.action;

import javax.servlet.http.*;
import org.apache.struts.action.*;
import com.wgh.actionForm.ManagerForm;
import com.wgh.dao.ManagerDAO;

public class Manager extends Action {
	private ManagerDAO managerDAO = null;

	public Manager() {
		this.managerDAO = new ManagerDAO();
	}

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		String action = request.getParameter("action");
		System.out.println("获取的查询字符串：" + action);
		if (action == null || "".equals(action)) {
			return mapping.findForward("error");
		} else if ("login".equals(action)) {
			return managerLogin(mapping, form, request, response);

		} else if ("managerQuery".equals(action)) {
			return managerQuery(mapping, form, request, response);

		} else if ("managerAdd".equals(action)) {
			return managerAdd(mapping, form, request, response);
		} else if ("managerDel".equals(action)) {
			return managerDel(mapping, form, request, response);
		} else if ("queryPWD".equals(action)) {
			return pwdQuery(mapping, form, request, response);
		} else if ("modifypwd".equals(action)) {
			return modifypwd(mapping, form, request, response);
		}
		request.setAttribute("error", "操作失败！");
		return mapping.findForward("error");
	}

	// 管理员身份验证
	public ActionForward managerLogin(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		ManagerForm managerForm = (ManagerForm) form;
		int ret = managerDAO.checkManager(managerForm);
		System.out.print("验证结果ret的值:" + ret);
		if (ret == 2) {
			request.setAttribute("error", "您输入的管理员名称或密码错误！");
			return mapping.findForward("error");
		} else {
			HttpSession session = request.getSession();
			session.setAttribute("manager", managerForm.getName());
			return mapping.findForward("managerLoginok");
		}
	}

	// 查询管理员信息
	private ActionForward managerQuery(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		request.setAttribute("managerQuery", managerDAO.query(0));
		return mapping.findForward("managerQuery");
	}

	// 添加管理员信息
	private ActionForward managerAdd(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		ManagerForm managerForm = (ManagerForm) form;
		managerForm.setPwd(managerForm.getPwd());
		int ret = managerDAO.insert(managerForm);
		System.out.println("返回值ret：" + ret);
		if (ret == 1) {
			return mapping.findForward("managerAdd");
		} else if (ret == 2) {
			request.setAttribute("error", "该管理员信息已经添加！");
			return mapping.findForward("error");
		} else {
			request.setAttribute("error", "添加管理员信息失败！");
			return mapping.findForward("error");
		}
	}

	// 修改密码时查询
	private ActionForward pwdQuery(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		request.setAttribute("pwdQueryif", managerDAO.query(Integer.parseInt(request.getParameter("id"))));
		return mapping.findForward("pwdQueryModify");
	}

	// 修改管理员密码
	private ActionForward modifypwd(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		ManagerForm managerForm = (ManagerForm) form;
		int ret = managerDAO.updatePwd(managerForm);
		if (ret == 0) {
			request.setAttribute("error", "修改管理员密码失败！");
			return mapping.findForward("error");
		} else {
			return mapping.findForward("pwdModify");
		}
	}

	// 删除管理员信息
	private ActionForward managerDel(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		ManagerForm managerForm = (ManagerForm) form;
		managerForm.setID(Integer.parseInt(request.getParameter("id")));
		int ret = managerDAO.delete(managerForm);
		if (ret == 0) {
			request.setAttribute("error", "删除管理员信息失败！");
			return mapping.findForward("error");
		} else {
			return mapping.findForward("managerDel");
		}
	}
}